A Flightpath Charter Airways Inc. Bombardier CL-600-2B16 (C-GZPX) from Manchester, United Kingdom (EGCC) to Toronto/Lester B. Pearson, ON (CYYZ) started descent to FL370 without a clearance. No loss of separation or impact to operation.

A Morningstar Air Express Boeing 757-2B7 (MAL8082) from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Montreal/Mirabel Intl, QC (CYMX) conducted a missed approach due to an unstable approach. The aircraft subsequently landed on Runway 06 without issue. No impact to operations.

A Morningstar Air Express Boeing 757-2B7 (MAL8082) from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Montreal/Mirabel Intl, QC (CMX) initiated a missed approach for Runway 06 due to an unstable approach. MAL8082 landed on Runway 24 without issue at 0858Z. No impact to operations.

Before departure, a Government of Canada, Department of National Defence Canadair CL600-2A12 (CFC3045) from Toronto/Lester B. Pearson, ON (CYYZ) to Rouyn-Noranda, QC (CYUY) indicated that it had struck a black bird when landing on Runway 08. No damage. Vehicle (ST27) notified.

TSB #A20Q0033: An Air Canada Airbus A320 (C-FFWM/AC420) on an instrument flight rules (IFR) flight from Toronto/Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL). While the aircraft was taxiing on the ground to position itself near the passenger boarding and unloading gate, the right engine (#2) turned off on its own. The aircraft was taken out of service and the engine #2 electrical control unit (ECU) was replaced.

While inbound, a WestJet Encore de Havilland DHC-8-402 (C-FENO/WEN3538) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) declared MAYDAY due to flight control problems. Coordination carried out. WEN3538 landed without incident at 0248Z. No impact.
UPDATE from TSB Report #A20Q0039: C-FENO, a Bombardier DHC-8-400 aircraft operated by WestJet Encore, was operating flight WEN3538 under instrument flight rules from Toronto/Lester B Pearson Intl, ON (CYYZ) to its destination of Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) with 21 passengers and 4 crew members on board. While the aircraft was descending towards CYUL, the "mistrim left wing low advisory light" light came on. The crew disconnected the autopilot and found that the flight controls were very stiff. They pulled the roll disconnection lever, and the commanders controls became free but those of the first officer remained stiff. The crew completed the associated Quick Reference Handbook (QRH) checklist and an emergency was declared. The aircraft landed without incident. There were no injuries.
UPDATE from Flight Operations: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. During the descent of WEN3538, the MISTRIM LEFT WING LOW advisory light illuminated. When the First Officer (FO) / Pilot Flying (PF) disconnected the autopilot, it was noticed that the controls were very stiff and the Captain confirmed the same. The roll disconnect handle was pulled, which freed the Captain’s side while completely freezing the FO’s side. Quick Reference Card (QRC)and Quick Reference Handbook (QRH) procedures were actioned and air traffic control (ATC) was advised with a MAYDAY call that the aircraft was experiencing flight control malfunction. The runway assigned was the Instrument Landing System (ILS) 06R due to it having a longer available landing distance than 06L. Flight attendants were briefed for a non-normal landing, and the passengers were also notified. The approach and landing were normal and, upon stopping on the runway, the Aircraft Rescue and Fire Fighting (ARFF) unit conducted an inspection to confirm that no abnormalities were present. The aircraft taxied to the gate for a normal shutdown.

An Air Canada Airbus A320-211 (C-FDSN/ACA485) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) requested a return to the airport due to a vibration in engine #2; no emergency was declared while the aircraft was inbound for Runway 06R at CYUL. The aircraft then requested the presence of Aircraft Rescue and Fire Fighting (ARFF) services on the holding bay for Runway 24L to check the engine. No impact on operations.

An Air Algérie Airbus A330-202 (7TVJC/DAH2700) from Algiers, Algeria (DAAG) to Montreal/Pierre Elliott Trudeau, QC (CYUL) was instructed to conduct a go-around on Runway 06R because a Sky Regional Airlines Embraer ERJ 170-200 SU (C-FEIQ/SKV7742) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Newark, NJ (KEWR) had lined up on the runway while a Chartright Air Bombardier BD-100-1A10 (C-FXGO/HRT242) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) was unable to exit via Taxiway L, which was blocked by a Government of Quebec Canadair CL600-2B16 (C-GQBQ/QUE20) on a MEDEVAC flight from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Quebec/Jean Lesage, QC (CYQB). No other impact on operations.

TSB Report #A20Q0021: C-GTQB, an Air Transat Boeing 737-800 (TSC474), was on an instrument flight rules (IFR) flight from Montreal/Pierre Elliott Trudeau International, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) with 172 passengers and 6 crew members on board. During pushback from Gate 49 at departure from CYUL, the right Scimitar winglet hit temporary construction fencing. The aircraft was brought to the gate, and passengers got off normally to get onto another aircraft. There were no injuries, and damage was limited to the winglet.

An Air Canada Rouge Airbus A319-114 (C-FYIY/ROU1524) from Toronto/Lester B. Pearson, QC (CYYZ) to Fredericton, NB (CYFC) declared PAN PAN with the Boston Centre due to a hydraulic problem. The aircraft landed at Quebec/Jean Lesage, QC (CYQB) at 1538Z. Runway 24 was closed at CYQB until 1610Z.
UPDATE TSB Report # A20Q0028: C-FYIY, an Air Canada Rouge LP Airbus 319-114 operating as flight ROU1524, was conducting an instrument flight rules (IFR) flight from Toronto/Lester B. Pearson, ON (CYYZ) to Fredericton, NB (CYFC) with 129 passengers and 5 crew members on board. During cruise, when the aircraft was at 77NM southeast of Quebec, QC, the Electronic Centralized Aircraft Monitor(ECAM) generated a low hydraulic fluid message in the green system. The crew elected to divert to Quebec/Jean Lesage, QC (CYQB) and declared a state of emergency. The aircraft landed on Runway 24 without issue. There were no injuries or damage to the aircraft.

An Air Canada Rouge Boeing 767-38E (C-GDUZ/ROU7096) from Montreal/Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) declared PAN PAN due to a loss of the electrical system and requested a return to CYUL. At 1508Z, ROU7096 cancelled PAN PAN and requested to be redirected to its initial destination, CYYZ. No impact on operations.
UPDATE TSB Report #A20Q0029: C-GDUZ, a Boeing 767-375ER operated by Air Canada Rouge LP with flight number ROU7096, was flying under instrument flight rules from the Montreal/Pierre Elliot Trudeau, QC (CYUL) airport with only 2 pilots on board. While the aircraft was climbing, the engine parameters display and crew alert system (EICAS) broadcast the message "L AC BUS OFF". The crew requested a return to CYUL, a complete Quick Reference Manual (QRH) checklist, and declared a state of emergency. Subsequently, the procedure corrected the problem. The crew canceled the state of emergency and chose to proceed to the initial destination of CYYZ. The aircraft landed safely, and there were no injuries or damage to the aircraft.

A Chartright Air Cessna 560XL (HRT510) from Montreal/St-Hubert, QC (CYHU) to Toronto/Lester B. Pearson Intl, ON (CYYZ) taxied via Charlie for a departure from Runway 06L. The aircraft was seen crossing the hold short line. No impact.

An Air Canada Airbus A320-214 (C-GJVT/ACA402) from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) rejected its approach on Runway 24R due to instability. No impact on operations.

A Jazz de Havilland DHC-8-311 (C-FMDW/JZA8699) from Sept-Îles, QC (CYZV) to Montreal/Trudeau, QC (CYUL) pulled up on Runway 06R because the preceding arrival reported that the runway was slippery, with a strong downwind to the ground. JZA8699 headed to CYYZ after its pull-up.

Although it had received and read back clearance for standard instrument departure (SID) NORDIK 3, a WestJet Encore Ltd. Bombardier DHC-8-402 (C-GWJK/WEN3409), from Quebec/Jean Lesage, QC (CYQB) to Toronto/Lester B. Pearson, ON (CYYZ) was seen on a heading of 294, while the SID calls for a heading of 273. No impact on operations.

A GoJet Airlines Bombardier CL-600-2D24 (N185GJ/GJS6238) from Detroit-Wayne County, MI (KDTW) to Montreal/Trudeau, QC (CYUL) received and readback "Alpha 2, Alpha, Runway 28" and was observed passing Runway 28. Impact: A WestJet Encore de Havilland DHC-8-402 (WEN3541) from Montreal/Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) had to turn 180 degrees to go back to A4.

A Jazz de Havilland DHC-8-301 (C-GETA/JZA8968) from Ottawa/Macdonald-Cartier, ON (CYOW) to Montreal/Trudeau, QC (CYUL) was instructed by the tower to overshoot Runway 06R due to an Air Canada Airbus A320-214 (C-FXCD/ACA403) from Montreal/Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ), which was on the runway. ACA403 had missed its holdover time and taxied to return to de-icing.

A GoJet Airlines Bombardier CL-600-2D24 (N183GJ/GJS6184) from Detroit/Wayne County, MI (KDTW) to Montreal/Trudeau, QC (CYUL) was instructed to overshoot Runway 06R due to an Air Canada Airbus A321-211 (C-GITY/ACA480) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Trudeau, QC (CYUL), which was slow in leaving the runway.

A WestJet Encore de Havilland DHC-8-402 (C-GWEJ/WEN3523) from Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) to Toronto/Lester B. Pearson Intl, ON (CYYZ) reported the presence of a plastic bag on Runway 06R after its takeoff. Inspection completed. Nothing found.

A WestJet Encore de Havilland DHC-8-402 (WEN3523) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson Intl, ON (CYYZ) at departure from CYUL and on climb to 5 000 ft reported that it had received a traffic alert and collision avoidance system resolution advisory (TCAS RA). The traffic, a First Air Boeing 737-400 (FAB166) level at 6 000 ft, was not a real conflict. No impact on operations.

A Lufthansa German Airlines Boeing 747-400 (DABVR/DLH470) from Frankfurt, Germany (EDDF) to Toronto/Lester B. Pearson Intl, ON (CYYZ) reported that it was off course from the cleared route due to the flight management system (FMS) not working properly. The route known by air traffic services (ATS) was MT YXI. No impact on operations.

An Air Transat Airbus A330-342 (C-GCTS/TSC399) from Punta Cana, Dominican Republic (MDPC) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) received and read back the instruction to hold short of Taxiway F on Runway 28. TSC399 contacted apron management, which told it to turn onto F. A WestJet Encore de Havilland DHC-8-402 (WEN3534) from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) was on B2 after landing on Runway 24R and had clearance to cross Runway 28 towards F. Impact: WEN3534 had to yield to TSC399.

At takeoff, a Jazz Bombardier CL-600-2B19 (C-FIJA/JZA8549) from Montreal/Trudeau, QC (CYUL) to Charlottetown, PE (CYYG) reported that it was going back to CYUL and landing. The nature of the issue was not indicated. No emergency was declared and no assistance was requested. The aircraft landed without incident at 0306Z. Impact: a GoJet Airlines Bombardier CL-600-2D24 (GJS6238) from Detroit Metro/Wayne County, MI (KDTW) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL), an Air Canada Airbus A320 (ACA426) from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL), and another Air Canada flight (ACA4235) were delayed at landing, and a few flights were delayed at takeoff. No other impact on operations.

An Air Canada Airbus A320-211 (C-FTJS/ACA480) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Trudeau, QC (CYUL) was instructed by the tower to pull up because a Porter Airlines Inc. de Havilland DHC-8-402 (C-GLQX/POE452) from Montreal/Trudeau, QC (CYUL) to Toronto/Billy Bishop, ON (CYTZ) rejected its takeoff on Runway 06R due to a faulty indication. POE452 returned to the gate and ACA480 landed on Runway 06R at 1303Z.

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-GPWE/WEN3441) from Greater Moncton/Romeo Leblanc Intl, NB (CYQM) to Toronto/Lester B. Pearson Intl, ON (CYYZ) declared PAN PAN with Boston Centre due to a loss of the hydraulic system. The aircraft then requested to be redirected to Montreal/Pierre Elliott Trudeau, QC (CYUL) and requested the services of Aircraft Rescue and Fire Fighting (ARFF). The aircraft landed on Runway 06R at 1153Z without incident. Runway 06R was closed from 1153Z to 1210Z. Impact: a few departures were delayed.
UPDATE: TSB Report #A20Q0004: C-GPWE, a WestJet Encore de Havilland, Dash-8 Q400 (WEN3441), was on an instrument flight rules (IFR) flight from Moncton/Greater Moncton Intl., NB (CYQM) to Toronto/Lester B. Pearson, ON (CYYZ) with 66 passengers and 4 crew members on board. While the aircraft was in cruising flight approximately 175 nautical miles east of Montreal Pierre Elliott Trudeau, QC (CYUL), a loss of hydraulic fluid in system number 1 occurred. The crew diverted to CYUL and declared an emergency, and Aircraft Rescue and Fire Fighting (ARFF) services were deployed. The aircraft landed on Runway 06R without incident. There were no injuries or damage to the aircraft.

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-GPWE/WEN3410) from Toronto/Lester B. Pearson, ON (CYYZ) to Quebec/Jean Lesage, QC (CYQB) rejected its approach on Runway 29 due to the presence of a fox on the runway.

A WestJet Boeing 737-7CT (C-GCWJ/WJA719) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) reported a bird strike on touch down when arriving on Runway 08L. No operational impact.

For reasons unknown, the controller thought the runway was closed so a missed approach was issued for an Air Canada Airbus A319-114 (C-GBHM/ACA125) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR). Aircraft was vectored for a 2nd approach and landed without issue at 0440Z.

An Air Canada Airbus A321-211 (C-GJVX/ACA110) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ) was issued a taxi clearance to hold short Taxiway L. The aircraft was observed crossing Taxiway L.

An Air Transat Airbus A321-211 (C-FTXU/TSC952) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ) committed a taxi incursion. The aircraft missed the exit at D7.

A WestJet Boeing 737-7CT (C-FWSO/WJA702) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ) reported a bird strike when departing Runway 26L.

An Air Canada Boeing 777-333ER (C-FKAU/ACA103) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) committed a taxi incursion. Boeing 777-300 aircraft are not authorized to use Taxiway M3. No operational impact.

An Air Canada Airbus A320-214 (C-FZQS/ACA559) from Los Angeles, CA (KLAX) to Vancouver, BC (CYVR) issued a missed approach due to a WestJet Boeing 737-8CT (C-FUCS/WJA724) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ) slow to depart. Audio and radar reviewed.

A WestJet Boeing 737-76N (C-FZWS/WJA717) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) that was waiting to park at Gate 15 reported foreign object debris (FOD) on the apron near Gate 13 where a WestJet Boeing 737-6CT (C-GWJU/WJA141) from Edmonton, AB (CYEG) to Vancouver, BC (CYVR) was parking. Reported to Vancouver Airport Authority (YVRAA) and upon inspection the FOD was determined to originate from WJA141 colliding with WJA717 while passing on the apron. No operational impact.
UPDATE TSB Report #A20P0011: C-GWJU, a Boeing 737-600 aircraft operated by WestJet, was conducting flight WJA141 from Edmonton Intl (CYEG), AB to Vancouver Intl (CYVR), BC with 5 crew and 80 passengers on board. The flight crew stopped short of the lead-in line for gate B15, with engines running, awaiting ground crew to marshal the aircraft to the gate. C-FZWS, a Boeing 737-700 aircraft operated by WestJet, was conducting flight WJA717 from Toronto/Lester B. Pearson Intl (CYYZ), ON to CYVR with 5 crew and 87 passengers on board. This aircraft was taxing eastbound on the apron towards the lead-in line for gate B13, when the left winglet contacted the right-hand horizontal stabilizer of C-GWJU. There were no injuries. Both aircraft sustained substantial damage.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Flight crew of WJA717 reported to the Maintenance Control Centre (MCC) that the left wingtip contacted the right hand stabilizer upon taxiing to the gate. Maintenance inspected Left-Hand (L/H) winglet and found damage. Winglet strike inspection carried out in accordance with aircraft maitenance manual (AMM). Due to winglet strike, a "Non-Destructive Testing" (NDT) (eddy current) examination was carried out as per the Boeing 737 AMM and no crack indications were noted. Maintenance replaced winglet in accordance with AMM. Maintenance applied aerodynamic smoother to upper surface of L/H winglet in accordance with AMM. Aircraft returned to service on. Aircraft has flown 171 cycles since the occurrence with no further related issues.

An Air Canada Boeing 777-300 (ACA115) on a flight from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Vancouver Intl, BC (CYVR) was instructed to go around Runway 08L, due to slower traffic ahead and runway separation not assured.

An Air Canada Airbus A321-211 (C-GJWI/ACA107) on a flight from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Vancouver Intl, BC (CYVR) flew the missed approach due to "not ready to land". The aircraft was vectored for a 2nd approach and landed without further issue at 2307Z.

Tower instructed a Flair Airlines Ltd. Boeing 737-86J (C-FFLC/FLE223) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) to conduct a missed approach to Runway 08L due to its proximity to the preceding landing aircraft, a Carson Air Ltd. Fairchild SA-227DC (CA8081) from Kelowna, BC (CYLW) to Vancouver, BC (CYVR). FLE223 landed safely on Runway 08L.

A WestJet Boeing 737-7CT (C-FWCN/WJA717) on a flight from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Vancouver Intl, BC (CYVR) elected to conduct a missed approach. The aircraft was vectored for a 2nd approach and landed Runway 08L at 0246Z. No impact to operations.

An Air Canada Boeing 787-9 (C-FVLU/ACA1327) from Toronto/Lester. B Pearson, ON (CYYZ) to Vancouver, BC (CYVR) at FL380 encountered mountain wave activity. Aircraft climbed to FL383 then dropped to FL373 within 20 seconds.

A WestJet Boeing 737-76N (C-GRWS/WJA717) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) flew the published missed approach for Runway 08L. WJA717 climbed to 2,200 prior to descending back down to 1,700. At this point, WJA717 checked in with the departure controller and was instructed to expedite climb to 3,000.

An Air Canada Boeing 787-9 (C-FRSR/ACA1326) on a flight from Vancouver Intl, BC (CYVR) to Toronto/Lester B. Pearson Intl, ON (CYYZ) reported a bird strike on departure. Runway closed for 5 minutes. Nothing found.

A WestJet Boeing 737-76N (C-GRWS/WJA717) on a flight from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Vancouver Intl, BC (CYVR) initiated an overshoot Runway 08L due to unstable approach. No impact on operations.

An Air Transat Airbus A321-211 (C-FTXQ/TSC917) on a flight from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Vancouver Intl, BC (CYVR) exited Runway 26R and was instructed to taxi H hold short V. The aircraft turned left onto M.

An Air Canada Airbus A320 (ACA415) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) executed a missed approach due to a wind shear warning. No operational impact.

An Air Canada Airbus A320 (ACA419) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) reported a bird strike upon landing. An Air Canada Airbus A320 (ACA619) from Halifax/Stanfield, NS (CYHZ) to Toronto/Lester B. Pearson, ON (CYYZ) executed a missed approach during the clean up. One intact Swallow was found. No other operational impact.

A China Eastern Airlines Corporation Ltd. Boeing 777-333ER (B7368/CES207) from Shanghai/Pudong, China (ZSPD) to Toronto/Lester B. Pearson, ON (CYYZ) conducted a missed approach for Runway 24R at 1833Z and a missed approach for Runway 06L at 1905Z due to wind shear associated with thunder storms. The aircraft landed Runway 15R at 1917Z without further incident.

A WestJet Boeing 737-800 (WJA706) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ) reported a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) while on final for Runway 24R. Traffic was possibly a VFR aircraft descending into Toronto/Buttonville, ON (CYKZ).

An American, corporately registered Learjet 60 (N1128M) from Scottsdale, AZ (KSDL) to Toronto/Lester B. Pearson, ON (CYYZ) was observed descending below the cleared altitude of FL240.

At Toronto/Lester B. Pearson, ON (CYYZ), a vehicle (RED21) reported to the ground controller on the very high frequency (VHF) that a Kal Tire truck had crossed Runway 33L at the North service road. Another vehicle (Car 353) then reported that they were with the vehicles.

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3516) from London, ON (CYXU) to Toronto/Lester B. Pearson, ON (CYYZ) declared PAN PAN while inbound due to a flap issue. WEN3516 landed on Runway 06L without further incident (WOFI) at 1933Z.