A Tunisair Airbus A330-200 (TAR202) from Tunis, Tunisia (DTTA) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) rejected its approach on Runway 24L because the preceding departure had lost a wheel during takeoff. It landed at 1908Z.

A Jazz de Havilland DHC-8-311 (C-FSOU/JZA8684) from Montreal/Trudeau, QC (CYUL) to Bagotville, QC (CYBG) lost a wheel from its left interior back gear at takeoff from Runway 24L. JZA8684 burned off fuel and declared an emergency at 1933Z. JZA8684 landed without incident at 2014Z.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. During initial climb, the flight crew was informed by the air traffic controller (ATC) and the flight attendant (FA) that the aircraft (C-FSOU) lost the left inboard (#2) main wheel assembly. The decision was taken to execute an air turn back after burning some fuel. An emergency was declared and the aircraft landed without further incident. The aircraft stopped on the taxiway, where passengers were deplaned and bused to the terminal. Troubleshooting determined the main wheel bearings failed, allowing the assembly to separate from the gear axle on rotation. As the axle sustained some damage, the landing gear assembly along with the brake units and wheel assemblies were replaced before returning the aircraft to service. The main wheel assembly has been recovered. On January 4, 2020, another aircraft (C-GABO) suffered a No. 3 main wheel bearing failure while taxiing to the gate. Due to the failures on these aircraft, a fleet campaign was commenced on the DHC classic fleet (All DHC-8-102/301/311) to inspect and report on the condition of the main wheel bearings. A Safety Management System (SMS) investigation is currently underway. Further updates on the results of the campaign and SMS investigation will be made in Continuing Airworthiness Web Information System (CAWIS) as part of the follow-up on the two Service Difficulty Reports (SDRs) submitted by the operator.

The Langley, BC (CYNJ) tower lost the Extended Computer Display System (EXCDS) and the NAV CANADA Auxiliary Radar Display System (NARDS) at 1729Z. Approximately 5 minutes later, only surveillance on tower position was available. Functionality was fully re-gained at 1800Z. At approximately 1930Z, another outage lasted approximately 30 seconds.

Intermittent loss of multilateration system (MLAT) throughout the afternoon at Fort St. John, BC (CYXJ). "XJ Source [unserviceable] U/S" first displayed at 1946Z. Alert was intermittent between 1946Z and 2004Z. Lost MLAT again at 2010Z. Unable to advise Technical Operations Coordinator (TOC) due to their phone circuit appearing U/S, air traffic control (ATC) advised.

After landing, a British Airways Airbus A350-900 (BAW9L) from London/Heathrow, United Kingdom (EGLL) to Toronto/Lester B. Pearson, ON (CYYZ) stated that they had a hydraulic loss indication on landing Runway 23. BAW9L held on H at 15R pending an inspection vehicle. At 2027Z, BAW9L indicated that they had lost nose wheel steering and would require a tow to the gate. At 2039Z, the hydraulic leak was confirmed and BAW9L requested fire trucks due to the leak coupled with hot brakes. The aircraft was towed and escorted to the gate without further incident. Runway 23 operations were suspended pending an inspection.

The rate of closure with a preceding arrival, a Jazz de Havilland DHC-8-300 (JZA8330) from Sault Ste. Marie, ON (CYAM) to Toronto/Lester B. Pearson, ON (CYYZ) was such that IFR separation was lost and a Skyservice Business Aviation Inc. Bombardier CL-600-2B16 (Series 604) (SYB109) from Argyle, St Vincent & Grenadines (TVSA) to Toronto/Lester B. Pearson, ON (CYYZ) was instructed to pull up and go around on initial contact. SYB109 was instructed to fly heading 220 degrees, and climb to 3,000 feet. The aircraft was observed in a right hand turn, conflicting with departing traffic, an Air Canada Rouge Airbus A321-211 from Toronto/Lester B. Pearson, ON (CYYZ) to Puerto Plata, Dominican Republic (MDPP), on Runway 23.
UPDATE AOR-261323-V2: Due to compression on final approach, SYB109 was instructed to pull up and go around on initial contact. SYB109 was instructed to fly heading 220 degrees, and climb to 3,000 feet. The aircraft was observed in a right hand turn, conflicting with departing traffic (JZA8330 and ROU1820) on Runway 23.

At 1222Z, at Sioux Lookout, ON (CYXL), a power bump occurred, and all approach and runway lighting were lost while a Skycare Air Ambulance Swearingen SA226-AT (C-GCPX) from Sault Ste. Marie, ON (CYAM) to Sioux Lookout, ON (CYXL) was in the final landing phase. Aircraft landed, and held position on runway until temporary power was restored approximately one minute later. Aircraft was able to taxi while runway and taxiway lights surged between high and low.

A pilot reported an emergency locator transmitter (ELT) signal at 1 mile final Runway 30. The signal was lost after landing. The tower main receiver (located 3 miles north of the airport) was not receiving the signal. The backup receiver on top of tower receiving signal for approximately 10 minutes. Trenton Joint Rescue Coordination Centre (JRCC) advised the source was from Perimeter Aviation (PAG) maintenance.

At Norman Wells, NT (CYVQ), the runway lighting control panel went into alarm at 1630Z, and all lighting control was lost. Airport electrician notified and NOTAM issued. Several aircraft arrived without the aid of a precision approach path indicator (PAPI).

At Edmonton, AB (CYEG), the Tower ground/clearance delivery frequency lost its transmission capabilities, then the Tower frequency failed completely. Able to use TIL at first, but once Tower frequency failed, the Tower had to use the clearance delivery frequency on the TIL, and advertised on the automatic terminal information service (ATIS) to use the clearance delivery frequency for the CYEG Tower. At 1724Z, all frequencies were restored. Some minor operational delays occurred.

Arrival controller lost contact with a CargoJet Airways Ltd. Boeing 757-200 (CJT919) from Edmonton, AB (CYEG) to Calgary, AB (CYYC) on a heading of 060 on base leg for Runway 17R. CJT919 flew through both 17R and 17L localizers at 7000 feet and contacted arrival again approximately 6NM east of the 17L localizer. CJT919 was then vectored to final for 17R. A Syncrude Canada Ltd. Cessna 560 Citation V (SYN563) from Fort McMurray/Mildred Lake, AB (CER4) to Cornwall, ON (CYCC) that was flying heading 060, also on base leg, 6NM ahead of CJT919, was unable to contact arrival and contacted tower for instructions. Terminal control unit (TCU) relayed an instruction to the tower to turn and clear SYN563 for the visual approach. No loss of separation.

Monitor/Controller (MONCO) alarm at 2040Z. The flight service station (FSS) lost monitoring and control of distance measuring equipment (DME), localizer (LOC) and glide path (GP). Runway visual range (RVR) was also unserviceable (U/S). Everything returned to normal at 2041Z. Technical operations coordinator (TOC) advised at 2041Z. No impact on operations.

Monitor/Controller (MONCO) alarm at 0142Z. The flight service station (FSS) lost monitoring and control of distance measuring equipment (DME), localizer (LOC) and glide path (GP). Runway visual range (RVR) was also unserviceable (U/S). Everything returned to normal at 0144Z. Technical operations coordinator (TOC) advised at 0144Z. No impact on operations.

A Summit Air aircraft (SU8143) was cleared for the area navigation (RNAV) approach (APP) for Runway 02 via VIGVI transition. Aircraft lost RNAV between VIGVI and HAMPO, re-gained on short final. Navigational error. No impact to operations.

At 1147Z, a flight itinerary (FITN) for a Buffalo Airways Ltd. Beech 100 (BFL777) from Yellowknife, NT (CYZF) to Resolute Bay, NU (CYRB) was input into the Canadian Automated Air Traffic System (CAATS). It was a single input and the FITN was left in. BFL777 departed at 1320Z and, at 1343Z, BFL777 had radar service terminated and cleared enroute, at which point the BFL777 FITN was deleted from CAATS. At 1811Z, the Flight Information Centre (FIC) called with an arrival at CYRB on BFF777 at 1806Z. There was no FITN in the system but, upon review, it was discovered that the FITN was not completed correctly and alerting was lost.

A Jazz Bombardier CL-600-2B19 (C-GTJA/JZA8510) from Montreal/Trudeau, QC (CYUL) to Fredericton, NB (CYFC) on approach for Runway 09 lost the localizer and conducted a missed approach.

Aviation Incident Report: The pilot of a PAL Aerospace Cessna 750 (C-FJIC) from Saint John, NB (CYSJ) to Sept-Îles, QC (CYZV) confirmed it had lost a mechanical part (a pipe). NOTAM issued for the closure of Runway 27 at 0340Z. The runway, threshold, and taxiway were inspected. No debris was found. The runway was closed for less than 20 minutes. No flights were waiting and there was no impact on operations.

At FL380, a Cargojet Airways Ltd. Boeing 757-23A (C-FKAL/CJT599) from St. Johns, NL (CYYT) to Hamilton, ON (CYHM) mentioned that it had lost its reduced vertical separation minimum (RVSM). No impact on operations.

An Airsprint Inc. Cessna 525A (C-FASR/ASP524) on a flight from Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) to Fredericton Intl, NB (CYFC) reported having lost reduced vertical separation minimum (RVSM) capability during enroute climb due to autopilot malfunction. Initially having filed FL330 as a requested cruising altitude, ASP524 revised the requested altitude to FL270. The aircraft was subsequently cleared as requested. No impact on operations.

A Jazz de Havilland DHC-8-301 (JZA8965) from Sept-Îles, QC (CYZV) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) at 6 000 ft descending to 4 000 ft reported that it had heard a loud and clear emergency locator transmitter (ELT) signal in the MAIRE sector. Signal lost 15 NM east of CYUL. The Joint Rescue Coordination Centre (JRCC) Trenton was notified. Source unknown. No impact on operations.

Information received from the Joint Rescue Coordination Centre (JRCC) Trenton. At takeoff from a river, a Jen perds le Nord S.E.C. Cessna R172K (C-GBDQ) on a flight to Alma, QC (CYTF) got stuck and could not take off. The extent of the damage is unknown. No injuries or fatalities. The Transportation Safety Board of Canada (TSB) and the Aviation Operations Centre (AOC) were notified.
Update: TSB Report #A19Q0175: C-GBDQ, a privately operated amphibious Cessna R172K, was on a visual flight rules flight from the Manouane River (50°2024.2"N 70°3556.4"W) to Alma, QC (CYTF ), with 1 pilot and 1 passenger on board. During a low-altitude turn after take-off, the pilot lost control of the aircraft, and the left wing and the left float struck the water surface before the aircraft came to a stop and sank a few moments. later. C-GBDQ suffered significant damage. There were no injuries. The Emergency Locator Transmitter (ELT) did not activate.

A British Airways Boeing 747-400 (GBYE/BAW268) from Los Angeles, CA (KLAX) to London/Heathrow, United Kingdom (EGLL) indicated to air traffic services (ATS) that it had lost 400 ft of altitude after heavy turbulence. No impact on operations.

From 174535Z to 174553Z, radar display at Quebec was lost for 18 seconds; there were 7 aircraft in the control zone.

A Jazz de Havilland DHC-8-402 (JZA87961) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Billy Bishop, ON (CYTZ) heading west at 11 000 ft indicated that it had picked up the loud signal of an emergency locator transmitter (ELT), which was then lost at 1950Z. The Joint Rescue Coordination Centre (JRCC) in Trenton was notified. Identified source: a PPD Group Rockwell 115 (C-GMQQ), which was on the ground and safe. Set off accidentally.

The pilot of an Académie internationale de pilotage Cessna 172N (C-GZTE) from Ottawa/Gatineau, QC (CYND) to Ottawa/Gatineau, QC (CYND) lost control of the aircraft at takeoff. It would have applied power too quickly, which would have caused yawing motion on the runway. The aircraft came to a stop on the grass south of the runway, in the runway protected area (RPA). It left the runway by itself. No one was injured and there was no damage.

A Montmagny Air Service Partenavia P68 Observer (C-GOSJ) on a flight from Montmagny, QC (CSE5) to Havre St-Pierre, QC (CYGV) declared a PAN PAN. Left engine failure. Emergency services was notified. The aircraft landed without incident on Runway 09. 911 notified. A runway inspection was completed, and no debris or leaks were discovered. Minor impact: a 5-minute delay for an aircraft at departure.
Update: TSB Report #A19Q0156: A Montmagny Air Service Inc. Partenavia P68 Observer (C-GOSJ) was on a visual flight rules (VFR) flight from Montmagny, QC (CSE5) to Havre St-Pierre, QC (CYGV). After it had made a stopover at Sept-Îles, QC (CYZV), C-GOSJ took off for CYGV. Shortly after takeoff, the left engine lost power. The pilot turned off the left engine as a precaution and declared an emergency. The plane returned and landed without incident at CYZV. After the incident, an inspection of the left engine was conducted. It was noticed that there was a fuel leak caused by a pipe that was partially detached.
Aviation Incident Report: An aircraft (C-GOSJ) experienced left engine failure and performed an emergency landing. The aircraft landed without incident shortly after it had declared an emergency.

An Atlas Air Boeing 747-400 (N415MC/GTI275) on a flight from Covington/Cincinnati Intl, OH (KCVG) to Manama, Bahrain (OBBI) reported they had lost one of their very high frequency (VHF) radios, and that the company requested them to return to point of departure, KCVG. No impact.

Missing aircraft: A Cargair Ltd. Cessna 172M (C-GSEN) took off from Montreal/Mirabel, QC (CYMX) to conduct approaches at Sherbrooke, QC (CYSC). The aircraft never arrived at CYSC. The last radar echo was at 0146Z. The Joint Rescue Coordination Centre (JRCC) in Trenton was notified. Search and rescue operations were in progress. On September 7, 2019, the Joint Rescue Coordination Centre (JRCC) in Trenton confirmed it had found aircraft C-GSEN at 1718Z northwest of Lake Brompton, Estrie (QC). The pilot had died. Sûreté du Québec (SQ) was on the scene. The Transportation Safety Board of Canada (BST) was notified and went to the accident site. NAV CANADA and the National Operations Centre (NOC) were notified.
Update: TSB Report #A19Q0153: A Cessna 172 (C-GSEN) operated by Cargair Ltd. was conducting a night VFR flight from Montreal/Mirabel (CYMX), QC, to Sherbrooke (CYSC), QC, with one pilot on board. While the aircraft was cruising at 3,500 feet approximately 20 NM to the west of CYSC, it quickly lost altitude, collided with trees and crashed into the ground. The pilot was fatally injured and the aircraft was destroyed.

TSB #A19Q0138: a Cosmos Phase II basic ultralight was on a local VFR flight from private lands along Rue Principale Nord in Sacré-Coeur, QC with only the pilot on board. During the landing approach, the aircraft suddenly lost altitude while flying over a waterway and then collided with the ground. The aircraft was substantially damaged. The pilot was not injured.

The Quebec tower received an urgent call from a Richcopter Inc. Cessna 150M (C-GQHU) from Drummondville, QC (CSC3) to Drummondville, QC (CSC3), which informed the tower that it was going to land on Highway 20. Around 1455Z, the pilot was contacted, and they confirmed that they had landed approximately 4 NM east of Saint-Jean-Port-Joli, QC.
Update AOR 254216-V1: A Richcopter Cessna 150M (C-GQHU) from Drummondville, QC (CSC3) to Drummondville, QC (CSC3) squawked 7700 and declared an emergency on frequency 121.5. The aircraft reported a loss of engine power. The Quebec tower (CYQB) heard the call and responded. Thanks to the help of pilots en route and other neighbouring sectors, the tower located the aircraft and sent emergency services to it. The aircraft landed at 1455Z. The aircraft is in good shape. No one was injured. No impact. (Duplicate AOR 254216-V1 deleted)
UPDATE TSB #A19Q0140: C-GQHU, a Cessna 150M operated by Richcopter Inc., was conducting a VFR round robin flight from Drummondville (CSC3), QC, with the pilot and one passenger on board. In the vicinity of Saint-Jean-Port-Joli, QC, the pilot set the transponder to 7700 and declared an emergency because the engine lost power (Teledyne Continental 0-200-A). The pilot then made successful a precautionary landing on Highway 20, approximately 4 NM east of Saint-Jean-Port-Joli. There were no injuries or damage. A maintenance inspection determined that the engine failure was caused by carburetor icing.

An Air Canada Airbus A320-211 (ACA663) from Halifax/Stanfield, NS (CYHZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) overshot Runway 24L after it had lost visual contact with the runway due to a heavy downpour. ACA663 landed without incident on Runway 24R at 1743Z. No impact on operations.

The pilot of a Services Hélicocorp Robinson R44 (C-FXZS) reported a mechanical problem and indicated that it was going to initiate autorotation at the Roberval, QC (CYRJ) airport. The aircraft then made a very hard landing. The aircraft was damaged. No one was injured.
UPDATE: Runway 16/34 was closed from 1210Z to 1530Z due to the accident involving C-FXZS. Duplicate AOR 254344-V1 deleted.
UPDATE TSB #A19Q0139: C-FXZS, a Robinson R44 Raven 1 operated by Helicocorp Services Inc., was conducting a private VFR flight from St-Hubert (CYHU), QC, to Roberval (CYRJ), QC, with the pilot and one passenger on board. During its final approach to CYRJ, the engine (Lycoming O-540-F1B5) lost power, and the pilot performed an autorotation landing. When the aircraft touched down, the main rotor contacted the tail boom. The aircraft sustained significant damage. There were no injuries.

TSB #A19Q0067: A Parachutisme Nouvel Air Cessna 208B (C-FCPM) was on a local parachuting flight from Saint-Esprit, QC (CES2). After releasing parachutists, the pilot returned to CES2 and, during the visual approach for Runway 20, the aircraft fell victim to wind shear on short final. The aircraft lost altitude, and the pilot was not able to stop the descent; the aircraft hit the ground hard. The nose wheel collapsed and the propeller struck the ground. The pilot and passenger on board were not injured.

TSB Report A19Q0074: C-GTXE, a Top Aces Learjet 35A, was on a local flight from Bagotville, QC (CYBG) with just 2 pilots on board. Shortly after takeoff, engine number 2 lost power. There was no sound, vibration, or indication when power was lost. Engine number 2 was brought to idle, and a PAN PAN was declared. The flight crew requested a climb to 7 000 ft to dump fuel for its landing. The aircraft then landed at CYBG without incident. Maintenance staff determined that the loss of power had been caused by a defective potentiometer.

After it had been changed over and correctly read back the frequency change to go onto 135.02, a privately registered Cirrus SR22T from Trois-Rivières, QC (CYRQ) to Deer Lake, NL (CYDF) lost communication with air traffic services (ATS). North American Aerospace Defense Command (NORAD) was notified. Communications were reestablished in the eastern sector at 4740N07016W around 1625Z. No impact on operations.

A Delta Airlines Boeing 767-300 (N178DZ/DAL19) from London/Heathrow, United Kingdom (EGLL) to Detroit/Wayne County, MI (KDTW) reported that it had an altimeter problem and that it had lost its reduced vertical separation minimum (RVSM) certification. No impact on operations.

Sureté du Québec indicated to the Montreal Area Control Centre (ACC) that an unknown ultralight aircraft, whose provenance and destination are unknown, had crashed near Rougemont.
Update – TSB #A19Q0096: a privately registered Rans S-6ES Coyote II ultralight was on a VFR flight from a private aerodrome located in the Mont St-Grégoire, QC region with 1 pilot and 1 passenger on board. The aircraft was seen orbiting at a low altitude above orchards in the Rougemont, QC area when it lost altitude. The aircraft crashed into trees and was destroyed. The two occupants were fatally injured.

Around 1905Z, a Publicite Aero-Gramme Inc. Piper PA-18 (C-FHNK) from Montreal/St-Hubert, QC (CYHU) to Montreal/St-Hubert, QC (CYHU) at departure from Runway 24R lost two hooks while attempting to hook up its banner. The pilot found one of the hooks. Runway 24R was closed for an inspection. An arriving IFR aircraft had to reject its approach for Runway 06R. The inspection was conducted, the hook was found, and the runway reopened around 2010Z.

An École de pilotage Saint-Hubert Inc. Cessna 172M (C-GDDK), whose provenance and destination are unknown, was on Runway 10, short of Runway 06D, waiting to cross so that it could get onto Tango. After it had received clearance to cross, the aircraft seemed to bounce several times while taxiing on the threshold of Runway 06D. After verification, the pilot confirmed that his aircraft was on the grass and that he was a bit lost. The controller vectored the pilot so that he could get back to the manoeuvring area, and the aircraft returned to the club successfully. All traffic was directed to Runway 24D for the duration of the inspection of Runway 06D, which was conducted at 0315Z.

A Rockcliffe Flying Club Piper PA-31 (C-FRKG) from Ottawa/Rockliffe, ON (CYRO) to Ottawa/Gatineau, QC (CYND) declared a "Mayday" during the initial climb for Runway 09 due to the failure of the right engine. The aircraft landed 6 min later on Runway 09.
Update TSB #A19Q0092: C-FRKG, a Piper PA-31 Navajo aircraft operated by the Rockcliffe Flying Club, was conducting touch & go’s on Runway 09 at Ottawa/Gatineau (CYND), QC with 2 pilots on board. During the initial climb following the third takeoff at approximately 400 feet AGL, the right engine lost power. The flight crew feathered the propeller, carried out the applicable checklist, and declared a MAYDAY. A single-engine approach and landing was carried out at CYND without further incident. The operator’s maintenance performed an inspection and identified a faulty Fuel Control Unit.

An Air Canada Boeing 787-9 (C-FKSV/ACA875) from Frankfurt, Germany (EDDF) to Montreal/Pierre Elliott Trudeau, QC (CYUL) reported having an issue with their hydraulic system on the right side. They requested emergency vehicles at CYUL airport upon arrival. Runway 24R was closed by NOTAM, therefore it was re-opened temporarily by the Aéroports de Montréal (ADM). ACA875 landed safely at 1508Z.
UPDATE: AOR-250046-V3: Narrative section updated to read: "Runway 24R was closed by NOTAM, therefore it was re-opened temporarily by the airport duty manager (ADM). ACA875 landed safely at 1508Z."
Update TSB #A19F0146: C-FKSV, a Boeing 787-9 aircraft operated by Air Canada, was conducting flight ACA875 from Frankfurt/Rhein-Main (EDDF), Germany to Montreal/Pierre Elliot Trudeau Intl (CYUL), QC with 10 crew members and 243 passengers on board. During cruise flight at FL380 in the vicinity of N57/W025, the aircraft experienced a lost of the right hydraulic system pressure. The flight crew initially declared a PAN PAN as they were preparing to divert to London/Heathrow (EGLL), UK. However, it was subsequently determined that the issue was not affecting the safety of the flight or the ETOPS operation, as the system pressure and quantity was operating normally with the Electric Driven Pump on. The PAN PAN was cancelled, and the flight continued to CYUL without further incident. The operators maintenance found that the Engine Driven Pump (EDP) was leaking, and proceeded to replace it.

At 1712Z, a privately registered Cyclone 180 from Forestville, QC (CYFE) to Forestville, QC (CYFE) made a runway excursion while landing at CYFE. No one was injured. The aircraft was not damaged. The airport manager issued a NOTAM to close the runway while the aircraft was towed away. The shift manager was notified.
Update - A19Q0075: A privately registered, amateur-built Cyclone 180 was on a recreational VFR flight from Rivière-du-Loup, QC (CYRI) to Forestville, QC (CYFE) with 1 pilot and 1 passenger on board. During the landing on Runway 27 at CYFE, the pilot lost control of the aircraft, leading to a runway excursion on the left side. The right main gear collapsed, and the aircrafts right wing and propeller were heavily damaged. No one was injured.

The tower position lost its frequencys transmission function. The tower was radio only (RONLY) on the main receiver. The emergency radio was used until the back-up receiver was activated 2 minutes later. No impact on operations.

A SkyWest Airlines Bombardier CL-600-2B19 (SKW3130) from Chicago, IL (KORD) to Montreal, QC (CYUL) reported that it had lost its airspeed indicator and declared an emergency. Emergency measures were taken. SKW3130 landed on Runway 06R at 1510Z. No impact on operations.
TSB Update #A19Q046: A SkyWest Airlines Bombardier CRJ-200 (N928EV/SKW3130), with 3 crew members and 44 passengers on board was on an instrument flight rules (IFR) flight from Chicago O’Hare, IL (KORD) to Montreal/Pierre Elliott Trudeau, QC (CYUL). While inbound for CYUL, at FL200, speed indications became unreliable; the pilot-in-commands anemometer displayed an "amber IAS flag" (indicated airspeed); the co-pilots indicated 40 kts and his altimeter was fluctuating. The flight crew declared an emergency. The aircraft landed without incident on Runway 06R, with Aircraft Rescue and Fire Fighting (ARFF) services present and ready to intervene. No damage or injuries to report.

A Pascan British Aerospace Jetstream Model 3212 (C-GPPS/PSC582) from Îles-de-la-Madeleine, QC (CYGR) to Quebec, QC (CYQB) rejected its takeoff from Runway 25 due to an engine problem and taxied up to the apron. No impact on operations
Update TSB #A19A0021: C-GPPS, a British Aerospace Jetstream 32 aircraft operated by Pascan Aviation, was conducting flight PSC582 from Iles-de-la-Madeleine (CYGR), QC to Quebec/Jean Lesage Intl (CYQB), QC with 2 crew members and 13 passengers on board. During the take-off roll on the departure from CYGR, the number 2 engine lost power. The flight crew rejected the takeoff, and taxied back to the apron. The operator’s maintenance was unable to determine the source of the power loss. The aircraft was ferried to the operators maintenance base for further maintenance inspection.
Aviation incident report #15988: A Pascan British Aerospace Jetstream Model 3212 (C-GPPS/PSC582) had a problem with its right engine at takeoff from the threshold of Runway 25. The engine was turned off and the plane went back to the apron using its left engine. There was no request for assistance, and no emergency was declared. Passengers got off at the terminal.

An American, corporately registered Cessna 525 (N793CJ/JSL21) from North Bay, ON (CYYB) to Wabush, NL (CYWK) reported an emergency locator transmitter signal (ELT) at position 5226N/06754W, at an altitude of FL180. The signal was lost on approach to CYWK. The Joint Rescue Coordination Centre (JRCC) Halifax (HZ) was advised. No impact on operations.

At 1347Z, a Federal Express Corporation McDonnell Douglas MD-10-30F (N311FE/FDX130) from Memphis, TN (KMEM) to Montreal/Mirabel, QC (CYMX) reported that it had probably lost a piece of its tire while landing on Runway 24, around 1206Z. An inspection was performed between 1347Z and 1403Z. No foreign object debris (FOD) found. Impact on operations: there were some movements on Runway 06 between FDX130s landing and the moment the FOD was reported.

An American, corporately owned Learjet 35A (N384CF) from Abel Santamaria, Cuba (MUSC) to Montreal/Mirabel, QC (CYMX), on visual approach for Runway 24, rejected its approach because the pilot had lost sight of the airport. No impact on operations. Air traffic control (ATC) and the airport manager were informed.

A Pascan Pilatus PC-12/47E (C-FMAO/PSC360) from Montreal/Saint-Hubert, QC (CYHU) to Rouyn-Noranda, QC (CYUY) deviated from its cleared route by 30 degrees to the right after it had passed REZIN. Air traffic services (ATS) had noticed the deviation from the route before radar contact with PSC360 was lost. PSC360 was then cleared direct SIBNA. No impact on operations.

A Government of Quebec, Service aérien gouvernemental Canadair CL-60 (QUE10) on a MEDEVAC flight from Montreal/Trudeau, QC (CYUL) to Quebec/Jean Lesage, QC (CYQB) and 2 NM on final for Runway 06 conducted a go-around. The pilot mentioned having lost the instrument landing system (ILS). No impact on operations.