A Provincial Airlines de Havilland DHC-8-311 (C-GVPA/PVL1901) from Wabush, NL (CYWK) to Sept-Îles, QC (CYZV) received a traffic alert and collision avoidance system (TCAS) warning when descending to CYZV while an Air Inuit de Havilland DHC-6-300 (C-FTJJ/AIE136) from Sept-Îles, QC (CYZV) to Poste Montagnais, QC (Mile 134) (CSF3) was climbing in the opposite direction. PVL1901 deviated off course and climbed. AIE136 also had to go off-course. PVL1901 was notified about the other aircraft.

A Pascan British Aersopace Jetstream 3212 (C-FFPA/PSC837) from Bagotville, QC (CYBG) to Québec/Jean-Lesage, QC (CYQB), approaching Baie-Comeau, QC (CYBC), cancelled instruments and proceeded to VFR for the airport when reported visibility from the aerodrome special meteorological report (SPECI) was within 3 statute miles (SM). The pilot confirmed having better visibility than what was reported by the automated weather station and, after checking, a NOTAM was issued to report the automated station problem.

A traffic alert and collision avoidance system (TCAS) alert was reported by a Provincial Airlines de Havilland DHC-8-311 (C-GPAR/PVL3042) from Sept-Îles, QC (CYZV) to Montréal/Pierre-Elliott-Trudeau, QC (CYUL), and by a Pascan Saab 340B (C-GRDU/PSC311) from Mont-Joli, QC (CYYY) to Sept-Îles, QC (CYZV). Aircraft at 600 ft.
UPDATE: TSB Report #A22Q0006: C-GPAR, a PAL Airlines Ltd. Dash 8-311, operating as flight PVL3042, was on an instrument flight rules flight from Sept-Îles, QC (CYZV) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL). C-GRDU, a Pascan Saab 340B operating as flight PSC311, was on an instrument flight rules flight from Mont-Joli, QC (CYYY) to Sept-Îles, QC (CYZV). Approximately 40 nautical miles (NM) southwest of CYZV, separation between C-GPAR and C-GRDU was reduced to 1.5 NM horizontally and 700 ft vertically, whereas the minimum required separation is 5 NM horizontally and 1000 ft vertically.

A Hydro-Quebec de Havilland DHC-8-311 (C-GJNL/HYD160) from Quebec/Jean-Lesage, QC (CYQB) to La Grande-4, QC (CYAH) reported engine issues and asked to be diverted to La Grande Rivière, QC (CYGL). HYD160 declared an emergency. Coordination was performed. HYD160 landed safely on the ground at 1507Z. Impact: the runway was unavailable from 1507Z to 1519Z. National Operations Centre (NOC) and Aviation Operations Centre (AVOPS) were notified.
UPDATE: TSB Report #A22Q0004: C-GJNL, a DHC-8-311 operated by Hydro-Québec, was on instrument flight rules flight HYD160 from Quebec/Jean Lesage, QC (CYQB) to La Grande 4, QC (CYAH). When the aircraft was in level flight approximately 130 nautical miles (NM) south of La Grande Rivière, QC (CYGL), the crew observed a complete loss of hydraulic fluid from system no. 2. An emergency (PAN PAN) was declared and the aircraft was diverted to the CYGL airport. The Quick Reference Handbook (QRH) check was completed and the landing gear was successfully deployed. The aircraft landed without incident at CYGL. Maintenance staff replaced a hydraulic line that was leaking and the aircraft was returned to service.

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.

A Harbour Air Ltd. de Havilland DHC-3 (C-FHAS/HR312) from Powell River, BC (CYPW) to Vancouver Harbour, BC (Water) (CYHC) reported a bird strike while one mile final for a westbound landing. No assistance required. No operational impact.

A Frequent Flyers Holdings Inc. Cessna 172N (C-GGCP) from Kelowna, BC (CYLW) to Kelowna, BC (CYLW) reported a bird strike on short final for Runway 16 at CYLW. A small bird struck the windscreen when the aircraft was 300 feet above ground level (AGL) and 1/8 mile on final. The pilot landed safely.

A Skylink Express Inc. Cessna 208B (C-FFGA/SLQ713) from Victoria, BC (CYYJ) to Vancouver, BC (CYVR) was being vectored for the instrument landing system (ILS) R08R approach and came within 2.5 miles and 800 feet of a Pacific Coastal Airlines Limited Beech 1900D (C-GPCE/PCO1206) from Kamloops, BC (CYKA) to Vancouver, BC (CYVR) on vectors for the area navigation (RNAV) R08L approach.

A Harbour Air Ltd. de Havilland DHC-6-300 (C-GFHA/HR610) from Vancouver Harbour (water), BC (CYHC) to Pitt Meadows, BC (CYPK) entered the Class C control zone without contacting air traffic control (ATC) and descended to within one mile final for Runway 08R while Runway 26L and 26R were active. The tower made several attempts to contact the aircraft, to no avail. No operational impact.

Three aircraft on final approach, a Flair Airlines Boeing 737 MAX 8 (C-FLEJ/FLE087) from Calgary, AB (CYYC) to Vancouver, BC (CYVR), a WestJet Boeing 737-8CT from Puerto Vallarta, Mexico (MMPR) to Vancouver, BC (CYVR), and a Flair Airlines Boeing 737 MAX 8 (C-FLKD/FLE253) from Palm Springs, CA (KPSP) to Vancouver, BC (CYVR), reported being struck multiple times by a green laser when 9 miles to touchdown for Runway 26R. Police notified.

A KF Cargo Convair 340 (C-GKFG/KFA577) from Vancouver, BC (CYVR) to Kelowna, BC (CYLW) reported a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) with an unknown aircraft, 10 miles southwest of the CYLW airport.

A Westjet Encore Ltd. de Havilland DHC-8-402 (C-FQWE/WEN3111) from Calgary, AB (CYYC) to Kamloops, BC (CYKA) executed a missed approach for Runway 27 due to a flap caution light appearing when 5 miles final. No operational impact.

A privately registered Piper PA-34-200T from Pitt Meadows, BC (CYPK) to Pitt Meadows, BC (CYPK) was observed approaching the control zone (CZ) boundary, 4 miles final for Runway 26L, with no contact. Multiple attempts were made to establish contact, with no success, but the aircraft continued inbound. At a half-mile final, the aircraft made initial contact and was cleared to land. Departure delayed for one aircraft.

A Jazz de Havilland DHC-8-402 (JZA8280) from Vancouver, BC (CYVR) to Kelowna, BC (CYLW), on the area navigation (RNAV) A, deviated from the approach. The aircraft was about 2 miles north of BOLDI.

A Jazz de Havilland DHC-8-402 (C-GJZY/JZA8393) from Calgary Intl, AB (CYYC) to Kelowna, BC (CYLW) on area navigation (RNAV) A for Runway 34 deviated off course approximately 3 miles north of BOLDI. No impact to traffic.

A Northern Lights Aviation Ltd. Cessna T206H (C-FMOM) from Pitt Meadows, BC (CYPK) to Bellingham, WA (KBLI) entered Class D airspace without contacting the Abbotsford, BC (CYXX) tower, 3 miles northeast (NE) of the White Rock non-directional beacon (NDB), tracking southbound to KBLI at 2000ft. No operational impact.

A Coldstream Helicopters Ltd. Aerospatiale AS332L1 (C-FRGB) from Kelowna, BC (CYLW) to Kelowna, BC (CYLW) entered Kelowna Class D airspace without clearance. Initial call was 1-1.5 miles inside controlled airspace, at approximately 2500 feet. No operational impact.

A privately registered Piper PA-46-310P from Abbotsford, BC (CYXX) to South Cariboo Region/108 Mile, BC (CZML) climbed through the assigned altitude on the standard instrument departure (SID). No operational impact.

When issuing an IFR clearance to a Government Of Canada, Royal Canadian Mounted Police Pilatus PC-12/47E (C-FMPA) from Terrace, BC (CYXT) to Atlin, BC (CYSQ) off CYXT, the controller inadvertently issued the clearance "off Runway 15" when actually intending to issue it "off Runway 33". At the time, a Carson Air Ltd. Beech B300 (C-GRXX/CRN811) from Kelowna, BC (CYLW) to Terrace, BC (CYXT) was approximately 70 miles south, inbound to CYXT for Runway 33. Separation not assured.

An Air Canada Airbus A321-211 (ACA143) from Toronto/Lester B. Pearson, ON (CYYZ) to Calgary, AB (CYYC) reported a remotely piloted aircraft system (RPAS) at 3100 feet, 5 miles northeast of CYYZ. No impact on operations.

The initial call from the pilot of an Académie Aéronautique Inc. Piper PA-28-140 (C-GVPL) from Kitchener/Waterloo, ON (CYKF) to Kingston, ON (CYGK) was 4 miles west of the airport, descending through A038 and inbound for a full stop. The aircraft was radar identified and the position was verified. C-GVPL landed at 2320Z. No impact to operations.

A Lake Central Airways Cessna 441 (C-GDTM) from Toronto/Lester B. Pearson, ON (CYYZ) to Kitchener/Waterloo, ON (CYKF) did not follow published visual approach procedures as stipulated in the Canada Air Pilot (CAP) document. The procedure to not descend below 3000 feet was not followed and the aircraft was observed to descend below 3000 feet approximately 5 miles east of the airport.

A Toronto Airways Inc. Cessna 172S (C-GBLQ) from Toronto/Oshawa, ON (CYOO) to Toronto/Oshawa, ON (CYOO) was restricted to "not above 1 500 feet" on departure, northbound, off Runway 12, with reference to a survey aircraft, a Lidar Aviation Services Inc. Piper PA-31-350 (C-GCJX) from Toronto/Oshawa, ON (CYOO) to Toronto/Oshawa, ON (CYOO), performing east-west lines at 2 300 feet. The aircraft was contacted again on the climb-out to confirm the restriction. Once 3 miles northeast, the aircraft appeared on the surveillance display at 1.9 within 1 mile of the survey aircraft, still at 2.3. The Cessna aircraft was asked to confirm its altitude to verify the fidelity of the radar, and the aircraft confirmed that it had continued its climb.

A Western Airway Investment Inc. Diamond DA 20-C1 (C-GGOT) from London, ON (CYXU) to London, ON (CYXU) departed Runway 15 and requested a return to the airport, reporting a radio failure 3 miles west of the airport. The aircraft squawked 7600, contacted the tower by cell phone, and was instructed to join the right downwind for Runway 15 and was given their sequence. C-GGOT was able to re-establish communications by radio when on final for Runway 15 and landed without issue. 2 inbound aircraft were instructed to remain outside the control zone for approximately 3 minutes.
UPDATE: Duplicate AOR-284072-V1: A Western Airway Investment Inc. Diamond DA 20-C1 (C-GGOT) squawked 7600; this triggered the Surveillance Fusion System (FUSION), which subsequently had multiple failures. Two to three aircraft were observed squawking 7600, when only one aircraft actually squawked the code, and multiple targets swapped identifications. "Radio failure" warning sounded at least 15 times, which was a distraction. The tower had to change to London (XU) radar, which was unaffected, and the issue resolved on its own by 2220Z. The Toronto Area Control Centre (ACC) radars were also affected. Data Systems Coordinator (DSC) advised. Moderate impact to operations and safety risk. (Duplicate AOR-284072-V1 deleted after information merge)

A Government of Canada, Department of National Defence British Aerospace CT-155 Hawk formation flight of two aircraft (DRGN105) from Hamilton, ON (CYHM) to Hamilton, ON (CYHM) was instructed to pass behind a Cargojet Airways Boeing 767-300 (CJT980) from London/Heathrow, United Kingdom (EGLL) to Hamilton, ON (CYHM), which was established on a 3 mile final for Runway 30. DRGN105 subsequently passed in front of CJT980, resulting in a traffic alert and collision avoidance system (TCAS) resolution advisory (RA). CJT980 landed without incident.

An American corporately registered Cessna 208 (N292BW) from La Grande Rivière, QC (CYGL) to Duluth, MN (KDLH) appeared on radar en route to KDLH 17 miles south of flight-planned route. No communication with aircraft until 0113Z, at which point the aircraft was 43 miles southeast of flight-planned route. When queried, the pilot indicated that they were having a navigation issue. The issue was resolved and the aircraft was re-cleared to KDLH. No operational impact.

An Air Nunavut Dassault Mystere Falcon 20-F5 (C-GZOX/BFF20) from Gander, NL (CYQX) to Ottawa/MacDonald-Cartier, ON (CYOW) initiated a missed approach for Runway 12 due to poor visibility and low ceiling. Conditions reported at the time by the aerodrome routine meteorological report (METAR) were OVC004 with 1.5 statute mile (SM) visibility, but the tower observed that visibility was no more than 1/2 SM to the northwest and along the approach. Communications transfer was initiated for the en route sector, and the aircraft was rerouted to an alternate airport.

A Cargojet Airways Boeing 757-223 (C-FACJ/CJT462) from Iqaluit, NU (CYFB) to Hamilton, ON (CYHM) on approach to Runway 12 declared PAN PAN PAN at 10 miles final. They reported an electrical smell in the cockpit but no sign of smoke. Airport Rescue and Fire Fighting (ARFF) was advised and were on standby. The aircraft landed safely without reporting further issues.

A Federal Express Corporation Boeing 757-200 (FDX136) from Memphis, TN (KMEM) to Toronto/Lester B. Pearson, ON (CYYZ) was instructed to overshoot Runway 23 by the tower due to a Skywest Airlines Embraer ERJ 170-200 LR (SKW4797) from Toronto/Lester B. Pearson, ON (CYYZ) to Chicago/OHare, IL (KORD) on the runway. SKW4797 accepted "taxi to position" clearance, as well as takeoff clearance, from the tower, at which point the aircraft indicated they needed to "run some numbers". FDX136 conducted an overshoot approximately 2.5 miles from the runway. FDX136 landed on Runway 23 at 1244Z. No other operational impact.

A Timber Wolf Air Pilatus PC-12/45 (C-FPCL/AB276) from Earlton (Timiskaming Regional), ON (CYXR) to Sudbury, ON (CYSB) reported a green laser strike while 5 statute miles (SM) final for Runway 22.

The pilot of an Airborne Sensing Corporation Piper PA-31-325 (SNAAP3) from Toronto/Oshawa, ON (CYOO) to Toronto/Oshawa, ON (CYOO) reported a gear indicator light when approximately 3/4 mile final for Runway 30. The pilot requested controller assistance in observation of the gears deployment during a go-around. Controller observation of the gears full deployment occurred simultaneously with a report from the pilot of the indicator lights deactivation. Minimal impact on operations.

An unknown aircraft with a 1200 transponder code was observed entering the Toronto/Oshawa, ON (CYOO) control zone from the west at 1,800ft above sea level (ASL), heading eastbound, and was approaching the final approach to Runway 12. At the same time, a Toronto Airways Inc. Cessna 172R (C-GKRF) was conducting circuits at Toronto/Oshawa, ON (CYOO) and was established on the left base for Runway 12. C-GKRF was instructed by air traffic control (ATC) to make a left turn to avoid any possible conflict with the unknown aircraft. The distance between both aircraft at the time was approximately 2 to 3 miles, and no imminent danger was present. A few unsuccessful attempts were made by ATC to make contact on the common frequency 122.9 MHz, but by that time the aircraft was observed turning back, westbound, and exiting out of the control zone.

TSB Report #A22F0014: C-GMIU, an Air Canada Boeing 737 MAX 8 was conducting flight ACA1046 from Vancouver Intl, BC (CYVR) to Palm Spring Intl, CA (KPSP). During approach, ATC informed the flight crew of a traffic 2 nautical miles ahead. Shortly after, the flight crew received a TCAS RA (resolution advisory) to climb. Flight crew followed the RA and landed in KPSP without further incident.

TSB Report #A22F0013: C-GJYE, an Air Canada A220-300 (BD-500-1A11) was conducting flight ACA782 from Los Angeles Intl, CA (KLAX) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL). During cruise, approximately 115 nautical miles SW of Denver Intl, CO (KDEN), the flight encountered momentary severe turbulence. Flight crew initiated a slow descent to FL350. All passengers and cabin crew were seated at the time (no injuries) as flight crew was advised of turbulence in the area prior to the event. The aircraft stayed within the performance envelope and the flight landed in CYUL without further incident. Maintenance determined that the aircraft did not exceed any performance threshold and no further action was required.

A Government of Canada, Department of National Defence Beech CT-156 Harvard II (APLO41) from Moose Jaw, SK (CYMJ) to Moose Jaw, SK (CYMJ) and a Calgary Flying Club Cessna 172S (C-FMTF) from Regina, SK (CYQR) to Saskatoon/John G. Diefenbaker, SK (CYXE) came in close proximity to the west of Regina, SK (CYQR). APLO41 departed CYMJ, northbound, and was maintaining 6000 ft for IFR traffic. C-FMTF departed CYQR, VFR, and proceeded northwest (NW) at 6500 ft. The controller passed C-FMTF as traffic information to APLO41, who reported having a visual. C-FMTF was observed to slowly descend to as low as 6100 ft and APLO41 descended to avoid the VFR traffic. The aircraft passed at approximately 1/2 mile and 200 ft. No impact to operations.

A WestJet Boeing 737-800 (WJA198) from Victoria, BC (CYYJ) to Calgary, AB (CYYC) executed a missed approach at 3 miles final for Runway 17R due to a wind shear warning. WJA198 landed safely at 1440Z.

A WestJet Boeing 737-700 (WJA112) from Vancouver, BC (CYVR) to Calgary, AB (CYYC) executed a missed approach at 5 miles final for Runway 17R due to strong northerly winds.

A privately registered Cessna 180 from Lloydminster, AB (CYLL) to Lloydminster, AB (CYLL) was observed on final for Runway 08 without radio contact, approximately 0.5 statute miles (SM) behind a Border City Aviation Cessna 172M (C-GIDW) from Lloydminster, AB (CYLL) to Lloydminster, AB (CYLL) that was established on final. The Cessna 180 did a 360-turn for spacing. They landed at 1909Z. The Cessna 180 advised the Flight Service Station (FSS) via their door phone that they had a radio failure. No impact to operations.

A Pacific Coastal Airlines Saab SF340A (PCO3028) from Dawson Creek, BC (CYDQ) to Calgary, AB (CYYC) conducted a missed approach 1 mile final for Runway 17R due to a landing gear indication. PCO3028 resolved the issue and landed safely at 0039Z. No operational impact.

A WestJet Encore Ltd. de Havilland (WEN3350) from Edmonton, AB (CYEG) to Calgary, AB (CYYC) conducted a missed approach for Runway 17R at 1/2 mile final due to an unstable approach. No operational impact.

An unidentified target later identified as a privately registered Piper PA-28-140 on a flight to Kenora, ON (CYQK) was observed approaching, then entering Winnipeg Class C airspace. Multiple attempts to establish communication on multiple frequencies were made. The aircraft was eventually reached on 126.7 MHz after descending to a wrong-way altitude of 4500ft approximately 9 miles north of the Winnipeg/James Armstrong Richardson, MB (CYWG) airport. Multiple departures off Winnipeg were impacted in order to remain clear of the target.

A Delta Air Lines Airbus A319 (DAL2202) from Minneapolis-St. Paul, MN (KMSP) to Calgary, AB (CYYC) conducted a missed approach when 2 miles final for Runway 35R, due to being too fast on approach. No operational impact.

A WestJet Boeing 737 MAX 8 (WJA2247) from Puerto Vallarta/Licenciado Gustavo Diaz Ordaz, Mexico (MMPR) to Calgary, AB (CYYC) reported a laser strike about 5 miles southeast of the airport. Pilot advised no impact to the flight deck. Calgary police authority was contacted. Subsequent arrivals did not report any additional laser strikes. No impact to the operation.

The pilot of a Brandon Flying Club Cessna 172N (C-GYLE) from Brandon, MB (CYBR) to Brandon, MB (CYBR) advised they were inbound to land due to a radio failure, and were "transmit only". Approximately 4 miles south southwest (SSW), communication was re-established. No operational impact.

A Government of Canada, Department of National Defence Lockheed C-130 (BXCR335) from Winnipeg/James Armstrong Richardson, MB (CYWG) to Winnipeg/James Armstrong Richardson, MB (CYWG) executed a go-around due to a bird strike (Canada Goose) at approximately half-mile final. The aircraft did a circuit and landed safely. No other impact to operations.

A XHM Holding Company Ltd. Mooney M20F (C-FKWI) from Minot, ND (KMOT) to Regina Intl, SK (CYQR) called 40 miles SE of the field inbound requesting navigational assistance. Suggested vectors were given. The pilot and aircraft were not IFR rated. The pilot had trouble maintaining VFR and visual reference with the terrain. The aircraft landed safely, no impact on operations.

A Mountain View Helicopters Robinson R22 Beta (C-FGOK) from Calgary/Springbank, AB (CYBW) to Calgary/Springbank, AB (CYBW) departed Helipad C westbound. They were instructed to stay south of Runway 26 and that the tower would call the northbound turn. C-FGOK was observed in the northbound turn a quarter mile off the helipad. The tower instructed C-FGOK to stay northbound, at which point they turned back westbound. The tower told C-FGOK to continue westbound. A Springbank Air Training College Cessna 172P (C-GQCL) from Calgary/Springbank, AB (CYBW) to Calgary/Springbank, AB (CYBW), just off Runway 26, was instructed to turn an early crosswind.

Approximately 2 miles final for Runway 20, a Flair Airlines Boeing 737-86J (C-FFLC/FLE801) from Kitchener/Waterloo, ON (CYKF) to Edmonton, AB (CYEG) initiated a missed approach due to an unstable approach. FLE80 landed without incident at 0154Z. No impact on operations.

A Transwest Air de Havilland DHC-6-300 (C-FWAH) from Prince Albert/Glass Field, SK (CYPA) to La Ronge/Barber Field, SK (CYVC) reported a laser strike while 12NM North of CYPA. They believed that the laser originated roughly 4-5 miles West of their location. No report of impact to crew. Local law enforcement notified.

A Coldsmoke Aviation Aerospatiale AS350 B3 (C-GWOQ) from Calgary/Springbank, AB (CYBW) to Calgary/Springbank, AB (CYBW) was observed one mile in the control zone at 4500ft without establishing communication with any tower frequency. No impact on operations.