A Strong emergency locator transmitter (ELT) signal was heard on the ground at Amos/Magny, QC (CYEY) outside the scheduled test hours, by a Propair pilot. Air Traffic Service (ATS) unit notified. Source found: ground maintenance. No impact on operations.

A clear and strong emergency locator transmitter (ELT) signal was heard on 121.5 MHz for less than five seconds outside of testing hours.

A privately registered Quad City Challenger II experienced a runway excursion when conducting taxi tests on the ground at Sept-Îles, QC (CYZV). The aircraft lost a wheel and the pilot reported seeing smoke come from the aircraft. No fire was declared. Impact: the runway was closed until 2002Z. Flight and ground delays for several aircraft.

After multiple alarms at Montreal/Mirabel, QC (CYMX), both instrument landing system (ILS) 06 and 24 failed completely. The Technology Operations Coordinator (TOC) was advised. An Airbus Canada Limited Partnership Airbus BD-500-1A11 (ABK357) from Montreal/Mirabel, QC (CYMX) to Montreal/Mirabel, QC (CYMX) had to abort flight testing. No other operational impact.

A Jazz de Havilland DHC-8-402 (C-GBJZ/JZA7937) from Quebec/Jean-Lesage, QC (CYQB) to Montreal/Pierre-Elliott-Trudeau, QC (CYUL) declared "PAN PAN" due to a cargo door issue that was causing pressurization problems. No emergency declared; the aircraft descended to 6,000 ft and continued to its destination. JZA7937 landed without incident at 2125Z. No impact on operations.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. During cruise, the flight crew received a "FUSELAGE DOORS" red warning indication linked with the aft baggage door. A "PAN-PAN-PAN" was declared and the altitude was reduced. During the descent, the warning light went out. The flight continued to the destination airport and landed without further incident. During maintenance troubleshooting, the aft baggage door lock sensor fitted on the door handle housing was found to be out of limits. The sensor was adjusted and the system was tested serviceable before returning the aircraft to service.
UPDATE: TSB Report #A22Q0002: C-GBJZ, a Jazz Aviation de Havilland Dash 8-400 was on instrument flight rules flight JZA7937 from Quebec/Jean Lesage, QC (CYQB) to Montreal/Pierre Elliott Trudeau, QC (CYUL). En route, approximately 92 nautical miles (NM) east northeast (ENE) of CYUL, at an altitude of 14,000 ft ASL, an unsecured aft cargo door indication appeared. The crew initiated a descent to 8,000 ft, during which time the indication disappeared. An emergency (PAN PAN) was declared. The aircraft landed without incident at CYUL.

An emergency locator transmitter (ELT) signal was heard on 121.5 MHz outside of testing hours.

TSB Report #A22P0003: C-FYPB, a Swoop Inc. Boeing 737-8CT, was preparing for flight WSW419 from Kelowna, BC (CYLW) to Toronto/Lester B. Pearson Intl, ON (CYYZ) with 6 flight crew and 126 passengers on board. The aircraft was parked at the gate in CYLW and configured to be de-iced by Executive Aviation. The doors were closed, engines were off, and the APU was running. The de-ice truck was parked outside the aircraft clearance zone near the left wing with 1 operator in the bucket. The driver of the de-ice truck exited the vehicle to push another aircraft. Approximately 5 minutes later, the truck began rolling towards the aircraft and stopped when it collided with the left hand engine nacelle. The aircraft was deplaned and there were no reported injuries. The aircraft sustained damage to the outboard leading edge of the left-hand engine inlet cowl. Maintenance replaced the left engine inlet cowl and the aircraft was returned to service. The de-ice trucks braking system was inspected and function tested, with no faults found. Executive Aviation is conducting an internal investigation.

A Jazz de Havilland DHC-8-402 (C-GJZY/JZA8058) from Vancouver, BC (CYVR) to Prince George, BC (CYXS), descending into CYXS, requested to return to CYVR due to a nose gear issue. Returned to CYVR and landed without issue.
UPDATE: TSB Report #A22P0008: C-GJZY, a de Havilland DHC-8-402 (Q400) airplane operated by Jazz Aviation LP, was conducting flight JZA8058 from Vancouver Int’l, BC (CYVR) to Kamloops, BC (CYKA) with 4 crew and 69 passengers on board. During the initial approach into CYKA, the landing gear INOP caution light and the nose gear door light illuminated. The flight crew elected to return to CYVR. They performed a manual landing gear extension and landed at CYVR without further incident. There were no injuries and no emergency was declared. The operators maintenance performed an operational test of the landing gear. A fault was detected with nose landing gear sensor S19. Following the sensor replacement, rigging and inductance checks were performed, as were gear swings. No faults were found and the aircraft was returned to service.

A Central Mountain Air Ltd. Beech 1900D (C-FCMN/GLR727) from Kelowna, BC (CYLW) to Prince George, BC (CYXS) went "no radio" (NORDO) after positioning on Runway 16. The aircraft squawked "7600". The aircraft exited the runway and returned to the gate. It was determined that the aircraft was "receiver only" (RONLY).
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Maintenance staff were flown to the aircraft for investigation. "Comm 1" and "Comm 2" ground tested serviceable. Audio control panel replaced in accordance with (IAW) 31-10-00 for troubleshooting (T/S). Ground tested multiple times. Checked "okay". No other defect noted.

A Central Mountain Air Ltd. de Havilland DHC-8-102 (C-FVRJ/GLR8292) from Kamloops, BC (CYKA) to Vancouver, BC (CYVR) declared an emergency due to a nose gear indication issue. The Aviation Operations Centre (AVOPS) and the Joint Rescue Coordination Centre (JRCC) Victoria were advised. The aircraft landed safely, no operational impact.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Troubleshooting was carried out and found the nose oleo to be flat. This did not let the gear go fully up, thus keeping the nose gear open. Nose oleo hydraulic fluid was replaced and serviced, as per maintenance manual (MM) 12-10-32. A gear swing was carried out 3 times, and no further fault was found. See task card 221762-0008. Service Difficulty Report (SDR) #20220112021 was submitted.
UPDATE: TSB Report #A22P0001: C-FVRJ, a de Havilland Aircraft DHC-8-102 operated by Central Mountain Air, was conducting flight GLR8292 from Kamloops, BC (CYKA) to Vancouver Intl, BC (CYVR) with 3 crew members on board. After the landing gear was retracted on departure from CYKA, the flight crew received a landing gear unsafe advisory indication. The landing gear was subsequently lowered and the nose gear down-and-locked indication did not illuminate. The flight crew declared an emergency and anticipated having to extend the landing gear manually prior to landing at CYVR. The crew cycled the landing gear a second time and, on that extension, the indication showed that all the gear was down and locked. The flight landed without further incident. Subsequent maintenance actions found the nose landing gear shock strut assembly to be compressed. This prevented the landing gear from fully retracting and kept the nose gear doors from properly closing. Hydraulic fluid was added to the shock strut as per the aircrafts maintenance manual and landing gear test swings were successfully conducted. The aircraft was returned to service.

An emergency locator transmitter (ELT) signal was heard by the London Flight Information Centre (FIC) on 121.5 MHz at London, ON (CYXU) once, for at least 20 seconds, outside of the normal testing period. The Area Control Centre (ACC) Shift Manager was advised. Multiple ground sources were contacted to see if it was any of their aircraft, however, there was no further information. The ELT has not been heard since. Operational impact unknown.

A Jazz Bombardier CL-600-2B19 (JZA7116) from Calgary, AB (CYYC) to Toronto/Lester B. Pearson, ON (CYYZ) declared "PAN PAN" at 2013Z due to flap issues. Aircraft Rescue and Fire Fighting (ARFF) unit was dispatched and the flight landed safely on Runway 05 at 2023Z. No operational impact.
UPDATE: TSB Report #A22O0012: C-FZJA, a MHI RJ Aviation CL600-2B19 (CRJ200) aircraft operated by Jazz Aviation, was conducting flight JZA7116 from Calgary International, AB (CYYC) to Toronto/Lester B. Pearson International, ON (CYYZ) with 3 crew and 16 passengers on board. While on approach into CYYZ for Runway 05, the flaps failed to extend when the flight crew actioned the lever to lower the flaps. The flight crew completed the applicable procedure of the Quick Reference Handbook (QRH), conducted a missed approach and declared "Pan Pan" with Air Traffic Control (ATC). The aircraft performed a second approach, with the flaps up, for Runway 05, where it landed without further incident with Airport Rescue and Fire Fighting (ARFF) vehicles standing by. The company maintenance inspected the system and found the brake and positioning sensing unit (BPSU) sensing the RH flaps position at 46.6 degrees and a full lock of the LH flaps. Maintenance adjusted the RH flaps with the BPSU to 45 degrees and replaced all four LH flap actuators. The applicable rigging was completed and the system tested serviceable.

A WestJet Boeing 737-800 (WJA2507) from Puerto Plata, Dominican Republic (MDPP) to Toronto/Lester B. Pearson, ON (CYYZ) conducted a go-around for Runway 06L due to a flap issue. The pilot then declared "PAN PAN" due to flight control issues. The aircraft landed without issue on Runway 05 around 2349Z. Emergency vehicles were dispatched. No operational impact.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. The flight crew of WJA2507 from Puerto Plata, Dominican Republic (MDPP) to Toronto/Lester B. Pearson, ON (CYYZ) on January 28, 2022 reported on Log Page AM51564 that on final approach they selected "flaps 30" and the flaps stayed at 15 units. A go-around was conducted and the aircraft landed in the flap 15 configuration without incident. It was noted that, after landing, the flaps travelled to 30 units, with indication in the green and no asymmetry noted. WestJet (WJ) maintenance met the aircraft and performed a Built-in Test Equipment (BITE) check on the Flap Slat Electronic Unit (FSEU), and found no existing faults. The previous flight leg showed a Trailing Edge Left-Hand (L/H) sensor fail. A visual inspection of the L/H flap position sensor and connector was accomplished, with no defects noted. Further troubleshooting was conducted in accordance with the Boeing Fault Isolation Manual (FIM) 27-51 Task 813, with no faults found and the Flap Slat Electronics Unit (FSEU) still showing no existing faults, indicating that this was an intermittent defect. As due diligence, the L/H flap position transmitter and connector D275 were replaced and tested serviceable, in accordance with the Boeing Aircraft Maintenance Manual (AMM) and the Standard Wiring Practises Manual, and a Required Inspection Item (RII) inspection was accomplished. The aircraft was returned to service and has flown one leg with no recurrence of the defect. WJ Reliability was contacted to identify negative trends from all operators and to identify if there are any Original Equipment Manufacturer (OEM) remedies being reviewed, with the following results: this is a condition known to Boeing that affects all operators and the OEM is working on a permanent fix. Although the Fault Isolation Manual indicates that the operator may choose to replace the Flap Position Transmitter or the Indicator or both, new information from a Fleet Team Digest from Boeing that was created on 12/30/2021 suggests that the operator may want to consider replacing both the transmitter and the indicator. Even though there were no defects on the last flight, WestJet is replacing the Flap Position Indicator prior to further flight, per the suggestion in the new Boeing Fleet Team Digest (Work Order 690253).
UPDATE: TSB Report #A22O0011: C-GAWS, a Boeing 737-8CT operated by WestJet, was conducting flight WJA2507 from Puerto Plata/Gregorio Luperon International, Dominican Republic (MDPP) to Toronto/Lester B. Pearson International, ON (CYYZ) with 6 crew and 158 passengers on board. While on approach into CYYZ for Runway 06L, the flight crew selected the flaps to 30 but subsequently noticed the flaps stopped and remained at 15. The flight crew went through non-normal procedures, performed a go-around and declared "Pan Pan" with Air Traffic Control (ATC). The aircraft performed a second approach for Runway 05 with the flaps at 15, where it landed without further incident with Airport Rescue and Fire Fighting (ARFF) vehicles standing by. Company maintenance inspected the aircraft, replaced the Trailing Edge (TE) Flap transmitters, the left TE Flap position transmitter connector, and the Flap position indicator, and the system tested serviceable.

A PSA Airlines Bombardier CL-600-2D24 (JIA5110) from Philadelphia, PA (KPHL) to Toronto/Lester B. Pearson, ON (CYYZ) conducted a go-around for Runway 05 and then asked for delaying vectors to action a checklist. At 1603Z, JIA5110 declared an emergency due to an outboard "anti skid caution message" and requested that fire trucks be on stand-by (STBY). JIA5110 was given priority and landed without further incident (WOFI) at 1614Z, with the Aircraft Rescue and Fire Fighting (ARFF) unit in attendance. Minor operational impact, as other flights were moved to Runway 06R.
UPDATE: TSB Report #A22O0006: N587NN, a CL-600-2D24 operated by American Airlines as flight JIA5110, was on final approach into Toronto/Lester B. Pearson International, ON (CYYZ). The flight crew selected the landing gear down, and received an outboard anti skid caution message. The flight crew conducted a go-around, followed the QRH procedures, and declared an emergency. The aircraft landed uneventfully with ARFF standing by. A post flight maintenance inspection tested the spoiler/stabilizer control units (SSCUS) and anti-skid control system and found no faults. The aircraft was subsequently returned to service.

An emergency locator transmitter (ELT) signal was heard outside of the testing time. Signal was heard 3 times, each less than 1 second in duration.

Shortly after departure, a Jazz Bombardier CL-600-2D24 (C-FDJZ/JZA8930) from Thunder Bay, ON (CYQT) to Toronto/Lester B. Pearson, ON (CYYZ) reported an issue with a fire indicator and requested to return to CYQT. The aircraft landed safely at 1110Z. No impact on operations.
UPDATE: TSB Report #A22C0005: C-FDJZ, Bombardier CRJ 900 aircraft operated by Jazz Aviation Ltd., was conducting flight JZA8930 from Thunder Bay, ON (CYQT) to Toronto/Lester B. Pearson, ON (CYYZ) with a crew of four and 29 passengers on board. During the climb to enroute altitude, the lavatory smoke alarm sounded and cabin crew reported a plastic burning smell, with no sign of visible smoke. The flight crew conducted the emergency procedures and requested to return to CYQT. ARFF services were requested to be on standby and the aircraft landed without further event. An inspection of the aircraft by the operators maintenance determined that the R/H pack internal failure produced smoke or vapour substantial enough to send off the lavatory smoke alarm. The R/H pack was deferred and a test flight conducted. The aircraft was routed to the operators CYYZ maintenance base and is scheduled to have the R/H pack replaced prior to returning to service.

An inbound Wasaya Airways Beech 1900D (C-FQWA/WSG751) from Muskrat Dam, ON (CZMD) to Sioux Lookout, ON (CYXL) declared "PAN PAN" due to their gear not extending. The aircraft proceeded with a manual extension, conducted a "low and over", and landed without incident. The aircraft shut down on the runway and was towed off. Taxiway A, Runway 16/34, and Taxiway B were closed for approximately 10 minutes. Emergency services called. The Airport Operator (APO) and the Winnipeg Area Control Centre (ZWG) were advised. One departure, a Bearskin Airlines Swearingen SW4 (BLS361) from Sioux Lookout, ON (CYXL) to Red Lake, ON (CYRL), was delayed.
UPDATE: TSB Report #A22C0001: C-FQWA, a Beech 1900D operated by Wasaya Airways, was conducting flight WSG751 from Sioux Lookout, ON (CYXL) to Muskrat Dam, ON (CZMD) with 2 crew members and 5 passengers on board. While on approach for CZMD, the flight crew selected landing gear down; however, the gear remained up and the crew did not receive the three landing gear down annunciator lights. The flight crew decided to return to CYXL and requested emergency services to be on standby as a precaution. The landing gear was manually extended and the aircraft landed without further incident. There were no reported injuries and no damage to the aircraft. The operators maintenance identified an issue with the aircraft bus tie control PC board and replaced these components. GCUs were adjusted, gear swings were completed on the ground, and a successful in-flight test flight was completed. The aircraft has been released into regular service. Previous similar occurrences: A21C0113 and A21C0114.

TSB Report #A22F0016: C-GMIU, an Air Canada Boeing 737 MAX 8, was conducting flight ACA1054 from Vancouver Intl, BC (CYVR), to Phoenix/Sky Harbour Intl, AZ (KPHX). During cruise, in vicinity of Portland Intl, OR (KPDX), the flight crew experienced a failure of the Left Inertia Reference System (IRS), the autopilot, and the autothrottle. Flight crew did not declare an emergency, descended to FL270 and hand flew the aircraft for the remainder of the flight to KPHX, where it landed without further incident. Maintenance reset the Inertial Reference Unit (IRU) and performed a Built-In Test Equipment (BITE) test on the IRUs, with no fault found.

Delayed entry as a result of NAV CANADA safety and evaluation quality assurance (QA) review: Two short emergency locator transmitter (ELT) signal bursts were heard outside the testing time.

An emergency locator transmitter (ELT) signal was heard at 1157Z, for a duration of approximately 1 minute. Reported to shift manager. Restarted during testing period, and remained on afterwards. The Joint Rescue Coordination Centre (JRCC) Trenton was advised. No impact to the operation.

An Emirates Boeing 777-300 (UAE235) from Dubai, United Arab Emirates (OMDB) to Chicago/OHare, IL (KORD) declared "PAN PAN" due to flight control issues. The aircraft diverted to Winnipeg/James Armstrong Richardson, MB (CYWG). No further assistance was required. No impact to operations. (UPDATE: This record replaces CADORS 2022H0007, which was deleted due to incorrect region)
UPDATE: TSB Report #A22C0012: A6-EQD, a Boeing 777-300 ER operated by Emirates, was conducting flight UAE235 from Dubai, UAE (OMDB) to Chicago, IL (KORD). While en-route in Reykjavik Airspace, the crew observed a "Caution Flight Controls" with a "left elevator locked out" EICAS message. The flight crew conducted the checklist items, declared a "PAN PAN" and diverted to Winnipeg, MB (CYWG). The aircraft landed without further incident. Post flight inspection and tests (AFM Actuator Confidence Test# 27-02-00-400-801 and FIM task MM 27-11100) were conducted. The inspection is still underway, once a maintenance solution has been identified, the operator will ferry the aircraft back to Dubai.

An Emergency Locator Transmitter (ELT) signal was transmitted during non-test time. The source of the signal was a Winnipeg Aviation Ltd. Piper Pa-28-140 (C-GQPN) from Winnipeg/St. Andrews, MB (CYAV) to Winnipeg/St. Andrews, MB (CYAV).

The Security Operations (IOC) unit called the Calgary tower due to a code orange for a Jazz de Havilland DHC-8-402 (JZA8457) from Calgary, AB (CYYC) to Yellowknife, NT (CYZF), which was inbound with an engine overheating. The aircraft landed safely. (Reference CADORS 2022C0656)
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. The operator was contacted for additional details. The operator believes this to be C-GJZY that operated under flight number 8457 from Calgary, AB (CYYC) to Yellowknife, NT (CYZF). Shortly after cruise, the flight crew reported an Engine 2 Heater Adapter Caution (not an “engine overheating”). The flight returned to CYYC and landed with no further fault. Maintenance performed extensive troubleshooting; replacing a circuit breaker, relay, and the No. 2 Engine Heated Intake Adaptor. The aircraft was returned to service following successful operational tests with no further faults. There has been no recurrence.

At 1605Z, a privately registered Cessna 340A from La Ronge (Barber Field), SK (CYVC) to La Ronge (Barber Field), SK (CYVC) declared an emergency due to a problem with the left engine. Emergency services were notified. At 1613Z, the aircraft landed without incident. The National Operations Centre (NOC) was notified. A Blue Water Aviation Services Ltd. de Havilland DHC-3 (C-GHYB) experienced a delayed landing and a Good Spirit Air Service Beech B200 (GT891) was also delayed while they waited for airport staff to ensure no debris was on the runway.
UPDATE: TSB Report #A22C0007: A privately registered Cessna 340A departed La Ronge/Barber Field, SK (CYVC) for Stony Rapids, SK (CYSF). Shortly after takeoff, the pilot noticed the oil door of the left-hand engine nacelle was open and oil was streaming down the cowl. The left-hand engine (TSIO-520-NB) was shutdown and the propeller feathered. An emergency was declared, and the aircraft returned to CYVC, where a successful single engine landing was completed. After landing, an inspection by the operator of the left-hand engine found the oil dip stick was missing, the breather tube was plugged with frost, and the oil/air separator was blocked with ice/sledge. The operators maintenance serviced the oil/air separator, insulated the breather tube, and replaced the oil dip stick. Ground runs and a test flight were completed, and the aircraft was returned to service.

After departing Runway 23 on the correct transponder code of 5153, a Sobeys Capital Incorporated Bombardier BD-100-1A10 (C-FSXR) from Halifax/Stanfield, NS (CYHZ) to Trenton, NS (CYTN) tagged up as a Jazz Bombardier DHC-8-402 (C-GVJZ) doing a transponder test on code 1234. Data Systems Coordinator (DSC) advised. No impact on operations.

TSB Report #A22A0002: C-GDKN, a Sikorsky S-92 helicopter operated by Cougar Helicopters Inc., was conducting flight CHI831 from the Hibernia offshore platform (HIB) to St. John’s Intl, NL (CYYT). Shortly after departure from HIB, a haze was noticed in the aircraft interior. The flight crew selected the cockpit heating system off and actioned the Emergency Checklist items. The haze immediately dissipated, and the crew elected to return to HIB, where the aircraft landed without further incident. There were no injuries. A heater system hose was found partially separated, and the hose was replaced. The helicopter was returned to service following heater system testing.

A Summit Air British Aerospace Avro 146 (C-FXRJ/SUT8041) from Halifax/Stanfield, NS (CYHZ) to Kitchener/Waterloo, ON (CYKF) aborted its take-off from Runway 32. No assistance was required, but the aircraft returned to the fixed-base operator (FBO). No operational impact.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. The aircraft rejected takeoff from Halifax/Stanfield, NS (CYHZ) because the Primary Flight Display (PFD), top electronic horizontal situation indicator (EFIS) screen, displayed all flags, the altimeter (ALT) went black and the FTC (flight guidance) light appeared. The aircraft returned to the ramp without further incident. Maintenance re-racked Flight Guidance Computers (FGCs) 1 and 2, then performed return-to-service tests on the FGCs and the FLAD system. They checked serviceable and the aircraft was returned to service, with no further faults reported.

An emergency locator transmitter (ELT) signal was heard at the Chicoutimi/Saint-Honoré, QC (CYRC) airport from 1600Z to 1605Z. The signal was coming from the south ramp. Maintenance test. No impact on operations.

Air traffic control (ATC) instructed a Jazz ERJ 170-200 SU Embraer (JZA7655) from New York/La Guardia (KLGA), NY to Montréal/Pierre Elliott Trudeau (CYUL), QC to conduct a go-around because an Air Canada Airbus A220-300 (ACA327) from Montréal/Pierre Elliott Trudeau, QC (CYUL) to Calgary, AB (CYYC) was taking longer than expected with an engine test during a runup in position.

Kuujjuarapik, QC (CYGW) staff members indicated that they were unable to reach the fight service station (FSS) for La Grande on 122.2 MHz at 1145Z. A test was performed and there was no return. The technology operations coordinator (TOC) was notified. A NOTAM should be issued shortly.

At 2140Z, a Jazz de Havilland DHC-8-402 (JZA8708) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Quebec/Jean Lesage, QC (CYQB) declared an emergency due to smoke in the cockpit. Emergency vehicles were deployed. The aircraft landed without incident at 2157Z. No impact on operations.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. After starting their descent, the flight crew noted an acrid smell in the cockpit and forward cabin, followed by visible smoke in the cockpit originating from the right windshield. The flight crew donned their oxygen masks and declared an emergency. The windshield heating system was turned off and the smoke dissipated. The aircraft landed without further incident. During troubleshooting, one of the electrical terminals was found to be loose, as an incorrect length fastener had been installed. The terminal and the fastener were replaced, the system was tested serviceable, and the aircraft was returned to service. No Continuing Airworthiness Web Information System (CAWIS) Service Difficulty Report (SDR) was submitted, as the event was related to Human Factors. A Safety Management System (SMS) Report (SMS-MNT-821) was submitted and is currently being investigated. The CASI will follow-up on the investigation and related corrective measures.
UPDATE: TSB Report #A21Q0101: C-GGOK, a Jazz Aviation LP Dash-8-400, operating as flight JZA708, was on an instrument flight rules flight from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Quebec/Jean Lesage, QC (CYQB) with 66 passengers and 4 crew members. During descent, smoke appeared in the cockpit and the crew donned their oxygen masks. The smoke was coming from the right-side windshield electrical heating system and when the crew turned off the system, the smoke dissipated. The crew declared an emergency and landed without incident at its destination with the Aircraft Rescue and Fire Fighting (ARFF) unit on alert. There were no injuries and no damage to the aircraft.

At Sept-Îles, QC (CYZV), a strong and clear emergency locator transmitter (ELT) signal was twice heard on 121.5 MHz, lasting at least 5 seconds, outside of testing times. Unknown source. The Joint Rescue Coordination Centre (JRCC) Trenton was notified. The JRCC stated that it was a false alarm.

A privately registered Cessna 150H accidentally activated its emergency locator transmitter (ELT) for testing outside of reporting hours.

During morning frequency testing, the Salluit, QC (CYZG) dial-up remote communications outlet (DRCO), frequency 126.7 MHz, was unserviceable (U/S). The Montreal (ZUL) Technology Operations Coordinator (TOC) was advised, and a NOTAM was issued until 2359Z.

TSB Report #A21Q0021: C-GJBV, a Beech A100 operated by Sky Jet MG Inc., was on an instrument flight rules flight departing from Port-Menier, QC (CYPN) airport for a destination of Havre-Saint-Pierre, QC (CYGV). When the first officer landed, the aircraft was slowed down, without using the brakes, to about 55 knots. The captain then took control and applied the brakes. The aircraft turned suddenly to the left, and the captain attempted to regain control of the steering by applying the right brake and reversing the thrust of the engines. The aircraft exited the runway, hitting a runway light with the nose wheel, and when the landing gear was on gravel, directional control returned to normal. The captain then taxied the aircraft to the apron without incident. There were no injuries. After checking with maintenance, the main landing gear assemblies were replaced, as well as the nose wheel tire. The quality of the brakes was checked during the dismantling of the wheels and the brake tests did not reveal any faults. The aircraft was returned to service.
UPDATE: Aviation Incident Report #17064: As soon as a Sky Jet M.G. Beech A100 (C-GJBV/LSJ512) made contact with the ground, the aircraft went off the runway on the left side of the runway. As it was going off the runway, the aircraft struck a runway light. Based on preliminary findings, the left-side brake became wedged, if evidenced by the tracks left on the pavement. The aircraft was able to get back on the runway and apron on its own power. No impact on air operations. After a visual inspection, the aircraft departed normally for its next destination.

During an engine test of a Nolinor Aviation Boeing 737-2B6C (C-GNLN) in the holding bay of Runway 29 at Montreal/Mirabel, QC (CYMX), there was an oil spill, about 3 feet by 6 feet. No impact on operations.

During the inspection of Holding Bay 29 at Montreal/Mirabel, QC (CYMX), following high power engine tests of a Nolinor Aviation Boeing 737-229C (C-GNRD), an engine oil spill, as well as a break in the concrete of the holding bay, were discovered by a vehicle (SAU16). The oil was recovered. Impact: A NOTAM was issued to close the holding bay pending expertise and repair of the break in concrete.

A loud and clear emergency locator transmitter (ELT) signal was heard by a privately registered Cessna 150J on the ground at Joliette, QC (CSG3). The Joint Rescue Coordination Center (JRCC) Trenton was notified. The source was a privately registered Bellanca 7KCAB which had mistakenly left its ELT after its tests were completed. No impact on operations.
UPDATE: Duplicate AOR 273637-V1 / CADORS 2021Q1165 deleted after cross-referencing the information.

An Air Creebec Inc. de Havilland DHC-8-106 (C-FODL/CRQ261) from Val-dOr, QC (CYVO) to Waskaganish, QC (CYKQ) taxied and, when in position, advised that it had to do a ground test before its take-off roll. Following the test, CRQ261 indicated that it had to return to the terminal due to a problem related to the test and a need for maintenance. No impact on operations.

The owner of a privately registered, amateur-built Ultravia Pelican Sport 600 on a flight from Saint-Lambert-de-Lauzon, QC (CST7) called to say that they had accidentally activated their emergency locator transmitter (ELT) for 2 seconds outside of normal testing hours. The Joint Rescue Coordination Center (JRCC) Trenton was notified. The Royal Canadian Mounted Police of Quebec (GDQ) unit was notified.

At 1033Z, a Jazz de Havilland DHC-8-402 (JZA8701) from Quebec/Jean Lesage, QC (CYQB) to Montreal/Pierre Elliott Trudeau, QC (CYUL) initiated a missed approach for Runway 06R due to an indication of a landing gear problem. At 1104Z, JZA8701 declared a "PAN PAN" and emergency services were deployed. The aircraft landed safely at 1122Z and left the runway at 1203Z. No impact on operations.
UPDATE: TSB Report #A21Q0018: C-GGOY, a Dash 8-402 operated by Jazz Aviation under the callsign JZA8701, was on an instrument flight rules flight from Quebec/Jean Lesage, QC (CYQB) to Montreal/Pierre Elliott Trudeau, QC (CYUL) with 3 crew members and 34 passengers on board. While the aircraft was on final approach for Runway 06R at CYUL, the "Left Gear Unsafe" light illuminated when the landing gear was selected for the extended position. The crew ascended and an emergency (PAN PAN) was declared. The Quick Reference Handbook (QRH) checklist was completed and the light remained on. The aircraft touched down on Runway 06R safely and the aircraft came to a stop. The landing gear was secured and the aircraft was towed to the boarding gate.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. During approach, the flight crew received a "left" red Main Landing Gear (MLG) unsafe warning indication. The Quick Reference Handbook (QRH) was reviewed and an alternate gear extension was performed, with the same result. The alternate gear extension verification light was also indicating an unsafe condition. An emergency was declared. After burning off excess fuel and repositioning passengers in the cabin, the aircraft landed without further incident, stopping on the runway. Maintenance confirmed that the left MLG was not in a locked position. The gear was physically moved to a locked position and secured with a ground lock safety pin. The aircraft taxied to its assigned gate, where passengers deplaned. Following troubleshooting, the left MLG downlock actuator was replaced and the system tested serviceable. The aircraft was returned to service following a successful test flight. Service Difficulty Report No. 20210414003 was submitted

A Jazz de Havilland DHC-8-402 (JZA8730) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Quebec/Jean Lesage, QC (CYQB) declared an emergency due to a hydraulic problem after takeoff. JZA8730 returned to land at 0059Z. No impact, nothing to report upon inspection of the runway.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. During the initial climb, the flight crew of JZA8730 received an intermittent "#2 HYD ISO VLV" amber caution light. The hydraulic systems quantity and pressure were checked, and were found to be normal. The decision was taken to declare an emergency and perform an air turn back. The aircraft landed without further incident. Upon arrival, the aircraft was removed from service. Troubleshooting revealed that the #2 hydraulic isolation valve output pressure switch 2931-P20 was contaminated. Associated wiring was tested and found to be serviceable. The connector was cleaned and the pressure switch 967002-1 was replaced, the system tested serviceable and the aircraft was released to service. Aircraft times: 19464:42 flight hours and 16632 cycles.
UPDATE: TSB Report #A21Q0009: C-GGAH, a DHC-8-402 operated by Jazz under call sign JZA8730, was on an instrument flight rules flight from Montreal/Pierre Elliot Trudeau, QC (CYUL) airport to Quebec/Jean Lesage, QC (CYQB) airport. While the aircraft was climbing to a cruising altitude, an indication of a hydraulic problem was observed. The crew declared an emergency and made the decision to return to land at CYUL. The aircraft landed without issue.

The frequencies of the remote communications outlet (RCO) of Kuujjuaq, QC (CYVP), 123.275 MHz and 126.7 MHz, were taken out of service following their testing failure.

A Pacific Coastal Airlines Beech 1900D (C-GPCR/PCO453) from Vancouver, BC (CYVR) to Trail, BC (CAD4), climbing out of FL200 for FL210, reported an engine failure. The aircraft returned to CYVR, landing safely at 1905Z. No emergency declared.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. The right engine indicated an excessively high oil temperature on climb-out from Vancouver, BC (CYVR), prompting the crew to perform a precautionary engine shutdown, as per the Quick Reference Checklist. The aircraft returned to CYVR and maintenance identified a faulty oil cooler. The oil cooler was replaced, a test flight was completed and the aircraft was returned to service. Incident has been entered into the organizations Safety Management System (SMS) program for further investigations and the oil cooler has been sent out for evaluation. Investigation to be completed by the company via approved SMS program. Principal inspectors will follow-up with SMS investigation.
UPDATE: TSB Report #A21P0138: C-GPCR, a Pacific Coastal Airlines Textron (Beech) 1900D, was conducting flight PCO453 from Vancouver Intl (CYVR), BC to Trail (CAD4), BC with 2 flight crew members and 19 passengers on board. When climbing through 17 000 feet above sea level, the crew observed the right engine oil temperature was high, approximately 90° C. The right engine (PT6A-67D (S/N: PCE-PS0584) oil temperature continued to rise rapidly despite the crews efforts to cool it by reducing power and levelling off. The crew shutdown the right engine as a precaution. They declared an emergency (MAYDAY) and requested a return to CYVR. The aircraft landed without further incident. Company maintenance discovered that the right engine oil cooler had some bent fins and some small rocks embedded therein. The overheated oil was the result. The oil cooler was removed and a new one installed. A successful test flight was completed and the aircraft was returned to service.

A KF Cargo Convair 340 (C-GKFF/KFA579) from Vancouver, BC (CYVR) to Kamloops, BC (CYKA) departed from CYVR and returned due to unknown reasons, so the tower initiated a precautionary stand-by. KFA579 landed safely and, when they got to their apron, they requested Emergency Response Services due to an engine fire. Everything ended up okay. No operational impact.
UPDATE: TSB Report #A21P0137: C-GKFF, a Convair 580 operated by Kelowna Flightcraft Air Charter Ltd., was conducting flight KFA579 from Vancouver Int’l, BC (CYVR) to Kamloops, BC (CYKA) with two crew members on board. Shortly after departure from CYVR, the flight crew observed a fire warning light for the number 1 engine (Allison, 501-D13D). The power was reduced on the affected engine, and the warning light extinguished. The crew conducted a successful fire warning test to confirm integrity of the system and elected to return to CYVR. The flight crew completed an uneventful landing and taxied to the apron. After the aircraft was parked and the engines shut down, the crew were advised by maintenance that there was smoke coming from the wheel well area and were instructed to discharge fire bottle. ARFF vehicles were requested and attended the aircraft to ensure there was no fire. On inspection, it was determined that a clamp associated with the number one engine exhaust duct had failed, allowing hot exhaust gases to be directed at the fire sensors. The flight was cancelled, the clamp was replaced, and the aircraft was returned to service.

An emergency locator transmitter (ELT) was non-conforming to test standards. This was reported by the pilot of a Yellowhead Helicopters Ltd. Bell 206L-3 (C-GYHX) from Prince George, BC (CYXS) to Prince George, BC (CYXS), and the Joint Rescue Coordination Centre (JRCC) Victoria was notified. No operational impact.

TSB Report #A21P0097: C-GWRI, an Aspire Aviation Limited de Havilland DHC-8-103, was conducting flight TSH1202 from Vancouver, BC (CYVR) to Masset, BC (CZMT) with 3 crew members and 23 passengers on board. During cruise at 22,000 feet above sea level, multiple left-hand electrical bus system malfunctions occurred without annunciation indications. The pressurization indication panel became unserviceable and the cabin altitude began to climb. The flight crew decided to return to CYVR, descended to 11,000 feet, and completed the actions listed in the Quick Reference Handbook. The flight crew declared a "PAN PAN" with ATC. Maintenance found the left-hand transformer-rectifier unit undervoltage relay (part number 2431-K19) to be faulty. The relay was replaced and testing was completed in accordance with the aircraft maintenance manual. The system tested serviceable and the aircraft was returned to service.

A CargoJet Airways Boeing 757-23A (C-FKAJ/CJT909) from Hamilton, ON (CYHM) to Vancouver, BC (CYVR) declared "PAN PAN" due to a flap issue. The aircraft landed safely on Runway 26L at 1819Z.
UPDATE: TSB Report #A21P0128: C-FKAJ, a Cargojet Airways Ltd. Boeing 757-23A operating as CJT909, was conducting a flight from Hamilton, ON (CYHM) to Vancouver International, BC (CYVR) with 2 flight crew on board. During cruise flight at FL360, the crew received a trailing edge light and a leading edge slat asymmetry message on the Engine Indicating and Crew Alerting System (EICAS). The crew advised ATC and initiated the QRH procedure, which included an attempt to extend the slats and flaps in alternate mode. The slats and flaps failed to respond and the crew declared a "PAN PAN" with a request for ARFF due to a high speed flapless landing. The aircraft landed safely, with no reported damage to the aircraft. Maintenance found the left inboard slat loss sensing switch had an internal short and was replaced. The system was tested serviceable.

A Pacific Sky Aviation Inc. Viking DHC-6 (C-FMJO/LVW100) from Vancouver, BC (CYVR) to Victoria, BC (CYYJ) reported an unsafe door indication. The aircraft was given priority. Minimal in-flight delays to other aircraft.
UPDATE: TSB Report #A21P0125: C-FMJO, a Viking Air Ltd. DHC-6 Twin Otter operated by Pacific Sky Aviation, was flying under instrument flight rules as LVW100 from Vancouver Intl, BC (CYVR) to Victoria Intl, BC (CYYJ) with 2 flight crew and 1 passenger on board. During cruise, the door unlock crew-alerting system (CAS) message appeared intermittently. The flight crew confirmed that the passenger was secured, completed the QRH checklist and declared an emergency with air traffic control. The aircraft continued to CYYJ and the CAS message went out. The aircraft landed without further incident. Company maintenance found the door operation and function tested satisfactorily. Air stair door contacts were cleaned and the aircraft was returned to service.

A Jazz de Havilland DHC-8-402 (JZA8243) from Terrace, BC (CYXT) to Vancouver, BC (CYVR) reported a PAN PAN due to a cracked windshield and began their descent. The aircraft landed safely without delay at 0103Z.
UPDATE: TSB Report #A21P0118: C-GGNZ, a Jazz Aviation de Havilland DHC-8-400 airplane, was conducting flight JZA8243 from Terrace, BC (CYXT) to Vancouver Intl, BC (CYVR) with 4 crew members and 51 passengers on board. In cruise flight, at 25 000 feet above sea level, the first officer’s windshield shattered. Windshield heat was on and remained operational throughout, with no spark or electrical arcing at the terminal noted by the crew. The flight crew declared a PAN PAN and requested priority handling into CYVR. The cabin pressure remained steady and the flight descended normally to land without further incident. Company maintenance replaced the first officer’s windshield, conducted tests of the anti-icing and pressurization systems, and returned the aircraft to service. A Service Difficulty Report was submitted to Transport Canada (SDR 20211028012).