On takeoff from Runway 06 and on initial climb through 2400ft, a Morningstar Air Express Boeing 757-2B7 (MAL7082) from Montreal/Mirabel, QC (CYMX) to Toronto/Lester B. Pearson, ON (CYYZ) suddenly descended to 1400ft before resuming its climb. No impact.

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-GWEF/WEN3538) from Toronto/Lester B. Pearson, ON (CYYZ) à Montreal/Pierre Elliott Trudeau, QC (CYUL) advised that it had been targeted by a laser. Police advised. No impact on operations.

An Air Canada Boeing 777-333ER (C-FIVX/ACA2283) from Toronto/Lester B. Pearson, ON (CYYZ) to Incheon, South Korea (RKSI), departing off Runway 33R, reported a bird strike upon departure. A single deceased, intact Horned Lark was recovered from the runway. No impact to operations.

A Bearskin Airlines Swearingen SW4 (BLS803) from Ottawa/Macdonald-Cartier, ON (CYOW) to Toronto/Lester B. Pearson, ON (CYYZ) descended below the cleared altitude of 7000ft to 6600ft. BLS803 was advised to maintain 7000ft and climbed back to 7000ft.

A Sky Regional Airlines Embraer ERJ 170-200 SU (C-FEJP/SKV7610) from Chicago/OHare, IL (KORD) to Toronto/Lester B. Pearson, ON (CYYZ) initiated a missed approach when short final for Runway 24R due to being unstable. No impact on operations.

Wake turbulence was encountered by a Jazz de Havilland DHC-8-300 (JZA8602) from Sudbury, ON (CYSB) to Toronto/Lester B. Pearson, ON (CYYZ) that was 5.7 miles in trail (MIT) of an Air Canada Boeing 787-9 (ACA128) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ). A Jazz de Havilland DHC-8-300 (JZA8282) from Timmins/Victor M. Power, ON (CYTS) to Toronto/Lester B. Pearson, ON (CYYZ) also experienced wake turbulence while 9 miles in trail (MIT) of ACA128. No impact to operations.

An American, corporately registered Cessna 560 Citation V (N564TB) from Toronto/Lester B. Pearson, ON (CYYZ) to Nassau/Lynden Pindling, Bahamas (MYNN) crossed Runway 23 without clearance. No impact to operations.

An Air Canada Airbus A319-114 (C-FYKR/ACA7083) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) advised that it was in the missed approach for Runway 24R. ACA7083 landed on Runway 24R at 0053Z without further incident (WOFI). No operational impact.

TSB Report #A21O0007: C-GGJA, a Bombardier CL-600-2B19 operated by Jazz Aviation as flight JZA7895, was on an IFR flight from Thompson, MB (CYTH) to Toronto/Lester B. Pearson, ON (CYYZ) with 3 crew and 5 passengers on board. During descent through approximately 15000 feet, a "FLAPS FAIL" message appeared on the flight display. The flight crew actioned the appropriate QRH items, declared "PAN PAN" with ATC, and conducted an uneventful zero flap landing.
UPDATE: AOR 271626-V2: A Jazz Bombardier CL-600-2B19 (C-GGJA/JZA7895) from Thompson, MB (CYTH) to Toronto/Lester B. Pearson, ON (CYYZ) declared "PAN PAN" and requested an extended downwind for Runway 23. JZA7895 requested clearance for an approach to Runway 23 at 0238Z and stated that it would conduct a flapless landing. The Aircraft Rescue and Fire Fighting (ARFF) unit was not required. JZA7895 landed on Runway 23 at 0246Z without further incident. No operational impact.

An American, corporately registered Bombardier CL-600-2B16 (N604LB) from Teterboro, NJ (KTEB) to Toronto/Lester B. Pearson, ON (CYYZ) conducted a go-around due to a departing aircraft, a Korean Airlines Boeing 787-9 (KAL074) from Toronto/Lester B. Pearson, ON (CYYZ) to Incheon, South Korea (RKSI), being slow to roll. N604LB landed at 1733Z. No operational impact.

An Air Canada Boeing 737 MAX 8 (C-FSIP/ACA611) from Halifax/Stanfield, NS (CYHZ) to Toronto/Lester B. Pearson, ON (CYYZ) landed on Runway 24R without a landing clearance. No loss of separation or incursion. No impact to operations.

An Executive Jet Management Inc. Cessna 560XL (EJM790) from Toronto/Lester B. Pearson, ON (CYYZ) to Winnipeg/James Armstrong Richardson, MB (CYWG) was taxiing via Taxiway Hotel for a departure from Runway 23, and crossed the hold line. The aircraft came to a stop and advised the tower that it had inadvertently crossed the hold line. No other traffic was involved and there was no impact on operations.

TSB Report #A21O0003: C-GJZS, a Bombardier CL-600-2D24 (Series 900) operated by Jazz, was conducting flight JZA8918 from Toronto/Lester B. Pearson, ON (CYYZ) to Moncton/Romeo LeBlanc, NB (CYQM) with 4 crew members and 16 passengers onboard. Shortly after takeoff, the flight crew noticed a small engine number 1 fan vibration of 1.4 Mils, which is still within acceptable limits. As the aircraft continued climbing, the vibration slowly increased until the aircraft levelled off at FL390, where the vibration reached the yellow arc, with an indication from 3.7 to a maximum of 4.0 Mils. The crew actioned the QRH and conducted the applicable trouble shooting. The captain requested a lower altitude from ATC to reduce power and attempt to stabilize the vibration. As the indication was still around 3.3 Mils, the crew declared a "PAN PAN", turned back towards CYYZ and shut down the number 1 engine, as directed by the QRH. The aircraft landed safely in CYYZ, where emergency vehicles were standing by. Engine number 2 fan vibration remained steady, around .04 and 0.5 Mils. Company maintenance conducted an inspection, with no defects found. The number one fan blade retaining pins were replaced, and the engine tested. Results were within acceptable limits.

Delayed entry as a result of NAV CANADA safety and evaluation quality assurance (QA) review: While 8NM final for Runway 03, a Jazz de Havilland DHC-8-300 (JZA8289) from Toronto/Lester B. Pearson, ON (CYYZ) to Timmins/Victor M. Power, ON (CYTS) reported a traffic alert and collision avoidance system (TCAS) alert (traffic advisory) for traffic at the airport at field elevation. An Ornge Global Air Inc. Pilatus PC-12/47E (PUL103-M) on a flight from Timmins/Victor M. Power, ON (CYTS) was starting up at the time. No impact to operations.

An American, corporately registered Gulfstream G-IV (N889CG) from Toronto/Lester B. Pearson, ON (CYYZ) to Washington-Dulles, VA (KIAD) requested an immediate return to CYYZ shortly after departure, due to an aircraft equipment issue. No emergency was declared. N889CG landed on Runway 23 at 0154Z without further incident (WOFI). No operational impact.

An American, corporately registered Cessna 750 (N513JB) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) advised that it had a flap issue. The pilot did not declare an emergency. At 2044Z, N513JB landed on Runway 23 at CYYZ without further incident (WOFI). No operational impact.

An Air Canada Boeing 787-9 (C-FRTG/ACA090) from Toronto/Lester B. Pearson, ON (CYYZ) to Sao Paulo/Guarulhos, Brazil (SBGR) reported a laser strike on climb out of CYYZ. No injuries. No operational impact.

A WestJet Encore de Havilland DHC-8-402 (C-GENK/WEN3346) from Toronto/Lester B. Pearson, ON (CYYZ) to Halifax/Stanfield, NS (CYHZ) requested to return to CYYZ due to a propeller de-icing caution warning. No emergency was declared and the aircraft landed at CYYZ without further incident at 1538Z.

A Sky Regional Airlines Inc. Embraer ERJ 170-200 SU (SKV7529) from Ottawa/Macdonald-Cartier, ON (CYOW) to Toronto/Lester B. Pearson, ON (CYYZ), 5 statute miles (SM) final, reported a laser beam off its right-hand side.

A Jazz de Havilland DHC-8-300 (JZA8287) from Toronto/Lester B. Pearson, ON (CYYZ) to Timmins/Victor M. Power, ON (CYTS) spotted 3 or 4 forest fires while en route to CYTS.

A Jazz de Havilland DHC-8-300 (JZA8642) from London, ON (CYXU) to Toronto/Lester B. Pearson, ON (CYYZ) conducted an overshoot for Runway 05 in response to a resolution advisory (RA). There was no traffic or explanation as to why the RA occurred. JZA8642 landed on Runway 05 at 1209Z, without further incident. No impact to operations.

An Endeavor Air Bombardier CL-600-2D24 (EDV4665) from Toronto/Lester B. Pearson, ON (CYYZ) to Detroit/Wayne County, MI (KDTW) turned off of the ANCOL4 standard instrument departure (SID) early. On first contact with radar, EDV4665 reported tracking direct to MOBEL instead of continuing on the runway heading. No impact on operations.

A Swoop Inc. Boeing 737-8CT (WSW407) from Abbotsford, BC (CYXX) to Toronto/Lester B. Pearson, ON (CYYZ) had a sick passenger on board. No emergency declared. No impact to operations.

An Air Canada Airbus BD-500-1A11 A220-300 (C-GJYA/ACA323) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Calgary, AB (CYYC) declared a medical emergency at 0151Z with the Winnipeg Area Control Centre (CZWG) and requested to divert to Toronto/Lester B. Pearson, ON (CYYZ). ACA323 landed on the CYYZ runway at 0258Z. No operational impact.

An Egyptair Boeing 787-9 (SUGEU/MSR995) from Cairo, Egypt (HECA) to Toronto/Lester B. Pearson, ON (CYYZ) deviated from the flight planned route of LIBEM RAGID5 at LIBEM for TADMO IMEBA5. The aircraft was advised and was re-routed for IMEBA5. No operational impact.

A Pakistan Airlines Boeing 777-200 (PIA797) from Lahore, Pakistan (OPLA) to Toronto/Lester B. Pearson, ON (CYYZ) declared that a passenger was experiencing illness. No emergency was declared, however, medical assistance was requested upon arrival. No impact to operations.

Shortly after departure, an Air Canada Airbus A321-211 (C-GIUF/ACA173) from Toronto/Lester B. Pearson, ON (CYYZ) to Edmonton, AB (CYEG) reported an unruly passenger onboard, and requested a return to CYYZ. No emergency was declared. ACA173 landed at 0109Z. No operational impact.

A Jazz Bombardier CL-600-2D24 (C-GNJZ/JZA7929) from Thunder Bay, ON (CYQT) to Toronto/Lester B. Pearson, ON (CYYZ) rejected its take-off due to an indication. No operational impact.

TSB Report #A21F0001: C-GAQX, an Air Canada Airbus 319-114, was conducting flight ACA1421 from Juan Gualberto Gómez Intl, Cuba (MUVR) to Toronto/Lester B. Pearson, ON (CYYZ). During cruise, approximately 10 nautical miles NNW of Allen C. Perkinson/Blackstone Army Airfield, VA (KBKT) the flight crew received a TCAS RA (resolution advisory) to "climb’". The flight crew followed the RA and the flight landed in CYYZ without further incident.

A Novajet Raytheon Hawker 750 (C-FCFC/NOJ75) from Toronto/Lester B. Pearson, ON (CYYZ) to West Palm Beach, FL (KPBI) declared an emergency with the Cleveland Air Route Traffic Control Center (ZOB) due to a pressurization issue and requested to return to CYYZ. NOJ75 landed on Runway 05 at 1848Z without further incident. No operational impact.
UPDATE: TSB Report #A21F0004: C-FCFC, a DBA Novajet Raytheon Hawker 750 was conducting a flight from Toronto/Lester B. Pearson, ON (CYYZ) to Palm Beach, FL (KPBI). During cruise at FL360 near Pittsburg, PA (KPIT), the flight crew declared an emergency and requested a descent in U.S. airspace due to pressurization issues. The flight crew diverted to CYYZ and landed without further incident. Maintenance troubleshooting found a torn common flexible duct that exits water separator.

The lights on the western half of the Calgary, AB (CYYC) aerodrome failed momentarily, for approximately 02 seconds. The west "Util Avai" indicator on the lighting panel went red for approximately 01 minute. The Security Operations (IOC) unit was advised. An Air Canada Boeing 737 MAX 8 (C-GEJL/ACA151) from Toronto/Lester B. Pearson, ON (CYYZ) to Calgary, AB (CYYC) was performing its landing roll on Runway 29 while the outage occurred. No impact to operations.

A Jazz Bombardier CL-600-2D24 (JZA8619) from Toronto/Lester B. Pearson, ON (CYYZ) to Saskatoon/John G. Diefenbaker, SK (CYXE) reported a medical issue onboard and advised that no assistance was required. No impact to operations.

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-GENU/WEN3100) from Fort St. John, BC (CYXJ) to Calgary, AB (CYYC) reported that a coyote crossed Runway 35L during the aircrafts landing. A WestJet Boeing 737-7CT (C-FIBW/WJA670) from Calgary, AB (CYYC) to Toronto/Lester B. Pearson, ON (CYYZ) was delayed by approximately 03 minutes while waiting for the coyote to vacate the runway.

An Air Canada Airbus BD-500-1A11 A220-300 (ACA151) from Toronto/Lester B. Pearson, ON (CYYZ) to Calgary, AB (CYYC) initiated a go-around for Runway 35R due to an unstable approach. No operational impact.

A loss of separation occurred when a Keewatin Air Beech 200 (C-GFOL/KEW210) from Thompson, MB (CYTH) to Winnipeg/James Armstrong Richardson, MB (CYWG) left the control zone and less than the required separation existed with a WestJet Boeing 737-6CT (C-GWCY/WJA475) from Toronto/Lester B. Pearson, ON (CYYZ) to Winnipeg/James Armstrong Richardson, MB (CYWG). (Reference CADORS 2021C0105 / AOR 270441-V1)
UPDATE: TSB Report #A21C0008: C-FSNV, a Cessna 172P operated by Harvs Air Service, was conducting a VFR night flight from Steinbach (South), MB (CKK7) to Winnipeg/James Armstrong Richardson, MB (CYWG). The aircraft was cleared into the CYWG control zone, was instructed to maintain 2000 ASL, and was informed that Runway 31 was active and to maintain present heading. C-GFOL, a Beech 200 operated by Keewatin Air as flight KEW210, was conducting a flight from Thompson, MB (CYTH) to CYWG and was cleared for the right-hand visual approach for Runway 31. C-FSNV was instructed to make a left turn of 270 degrees and then join the left base for Runway 31. C-FSNV was observed making a right hand turn. KEW210 was on the approach for Runway 31 and was instructed to turn right to 090. Both aircraft had confirmed that they had each other in sight. KEW210 was instructed to maintain 2000 ASL and turn right for the downwind for Runway 31. C-GWCY, a Boeing 737-6CT operated by WestJet as WJA475, was conducting a flight from Toronto/Lester B. Pearson, ON (CYYZ) to CYWG. WJA475 was cleared for the approach to Runway 31 and a loss of separation occurred between KEW210 and WJA475 when WJA475 was on the approach. The separation was 2 miles and 900 feet when 3 miles and a 1000 feet is required. (Reference CADORS 2021C0105 / AOR 270441-V1)

A Harvs Air Service Ltd. Cessna 172P (C-FSNV) from Steinbach (South), MB (CKK7) to Steinbach (South), MB (CKK7) was issued a left turn for sequencing, but subsequently turned right, conflicting with a Keewatin Air Beech 200 (C-GFOL/KEW210) from Thompson, MB (CYTH) to Winnipeg/James Armstrong Richardson, MB (CYWG) on final. The controller corrected the error, resulting in a short delay for KEW210. No other impact to operations. (Reference CADORS 2021C0203 / AOR 270688-V1)
UPDATE: TSB Report #A21C0008: C-FSNV, a Cessna 172P operated by Harvs Air Service, was conducting a VFR night flight from Steinbach (South), MB (CKK7) to Winnipeg/James Armstrong Richardson, MB (CYWG). The aircraft was cleared into the CYWG control zone, was instructed to maintain 2000 ASL, and was informed that Runway 31 was active and to maintain present heading. C-GFOL, a Beech 200 operated by Keewatin Air as flight KEW210, was conducting a flight from Thompson, MB (CYTH) to CYWG and was cleared for the right-hand visual approach for Runway 31. C-FSNV was instructed to make a left turn of 270 degrees and then join the left base for Runway 31. C-FSNV was observed making a right hand turn. KEW210 was on the approach for Runway 31 and was instructed to turn right to 090. Both aircraft had confirmed that they had each other in sight. KEW210 was instructed to maintain 2000 ASL and turn right for the downwind for Runway 31. C-GWCY, a Boeing 737-6CT operated by WestJet as WJA475, was conducting a flight from Toronto/Lester B. Pearson, ON (CYYZ) to CYWG. WJA475 was cleared for the approach to Runway 31 and a loss of separation occurred between KEW210 and WJA475 when WJA475 was on the approach. The separation was 2 miles and 900 feet when 3 miles and a 1000 feet is required. (Reference CADORS 2021C0203 / AOR 270688-V1)

A WestJet Boeing 737-700 (WJA441) from Toronto/Lester B. Pearson, ON (CYYZ) to Edmonton, AB (CYEG), en route, reported an ill passenger in distress. The aircraft requested paramedics at the gate. No impact to operations.

An Air Canada Boeing 737 MAX 8 (C-GEJL/ACA604) from Toronto/Lester B. Pearson, ON (CYYZ) to Halifax/Stanfield, NS (CYHZ) conducted a missed approach on short final for Runway 32 due to a wind shear warning. ACA604 landed at 1511Z. No impact.

An Air Canada Airbus A321-211 (C-FGKN/ACA614) from Toronto/Lester B. Pearson, ON (CYYZ) to Halifax/Stanfield, NS (CYHZ) pulled up when 2-3NM on final for Runway 14 due to a wind shear alert and advised returning to CYYZ. No impact on operations.
UPDATE: Duplicate AOR 271267-V1 / CADORS 2021A0066 deleted after cross-referencing information.

Frequency 122.0 MHz of Sydney/Douglas McCurdy, NS (CYQY) failed while a Jazz Bombardier CL-600-2D24 (JZA8210) from Toronto/Lester B. Pearson, ON (CYYZ) to Sydney/Douglas McCurdy, NS (CYQY) was on the approach. Unable to contact the aircraft once it was past the final approach fix (FAF). The frequency resumed once the aircraft was on the ground. The technical operations coordinator (TOC) was advised, and the TOC advised the Charlottetown (YYG) flight service station (FSS) that the CYQY 122.0 MHz modem was showing an error condition. CYQY 122.0 MHz was NOTAMed as unserviceable (U/S).

A Jazz Bombardier CL-600-2D24 (C-FUJZ/JZA8219) from Sydney/J.A. Douglas McCurdy, NS (CYQY) to Toronto/Lester B. Pearson, ON (CYYZ) reported smoke in the cabin, declared an emergency and requested a diversion to Moncton/Romeo LeBlanc, NB (CYQM) with the Aircraft Rescue and Fire Fighting (ARFF) unit on stand-by. JZA8219 landed at 1049Z. No impact on operations.
UPDATE: TSB Report #A21A0001: C-FUJZ, a Bombardier CL-600-2D24 (CRJ900) aircraft operated by Jazz Aviation LP, was conducting flight JZA8219 from Sydney/J.A. Douglas McCurdy, NS (CYQY) to Toronto/Lester B. Pearson, ON (CYYZ). On climb out of CYQY, the flight crew received an "AFT LAV SMOKE" warning message. The cabin crew reported a visible haze and strong odour in the vicinity of the aft lavatory, but no smoke. The flight crew carried out the required checklist items, including pulling circuit breakers to remove electrical power from the aft lavatory fan motor. The haze and odour was reported as dissipating, and the flight crew requested a diversion to Moncton/Romeo LeBlanc, NB (CYQM) and declared an emergency as a precaution, to ensure that emergency services were standing by. The aircraft landed at CYQM without further incident. Maintenance personnel subsequently confirmed and replaced a faulty aft lavatory fan motor.

A WestJet Boeing 737-8CT (C-FWIJ/WJA254) from Toronto/Lester B. Pearson, ON (CYYZ) to Halifax/Stanfield, NS (CYHZ) conducted a missed approach on the area navigation (RNAV) Y 05 due to crosswinds. WJA254 landed at 0500Z, no impact.

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-FENY/WEN3520) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) reported a possible bird strike upon landing on Runway 24L. No bird remains were found after a runway inspection was completed. No impact on operations.

A KLM Royal Dutch Airlines Boeing 787-9 (KLM691) from Amsterdam, Netherlands (EHAM) to Toronto/Lester B. Pearson, ON (CYYZ) was observed to be off of the authorized route and proceeding YBC direct YXI. The route known to the air traffic service (ATS) unit was YBC POLTY IMEBA5. No impact on operations.

A Lake Central Airways Cessna 441 (C-GAGE) from Toronto/Lester B. Pearson, ON(CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL), on final for Runway 24L, advised the tower that it had a missing landing gear indication. The tower confirmed that the nose wheel was not extended after an overflight of the runway. C-GAGE returned to land after checks without problems.

An Air Canada Airbus BD-500-1A11 A220-300 (ACA428) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) initiated a missed approach for Runway 06L due to an unstable approach. No impact on operations.

An Air Canada Airbus BD-500-1A11 A220-300 (C-GJXW/ACA402) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) initiated a missed approach for Runway 06R due to wind shear. ACA402 landed on Runway 06R at 1322Z. No impact on operations.

An Air Canada Airbus A321-211 (ACA428) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) reported a bird strike upon take-off from Runway 24L. Operational impact: a WestJet Encore de Havilland DHC-8-402 (C-FJEN/WEN3538) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre-Elliott-Trudeau, QC (CYUL) experienced a five-minute delay on the ground. No other impact.

After being authorized and reading back correctly the standard instrument departure (SID) CYUL1, a Flightpath Charter Airways Inc. Embraer EMB-505 (C-FWTF) from Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) to Toronto/Lester B. Pearson Intl, ON (CYYZ) was observed in a right turn, climbing through 1700 feet. No impact to operations.

TSB Report #A20O0067: Air Canada flight AC81, a Boeing 787-9 (C-FGDT) aircraft, was en route from Tel Aviv, Israel (LLBG) to Toronto LBPIA, ON (CYYZ) and approximately 214NM NE of Quebec City when a flight attendant had a medical emergency. The flight crew declared PAN PAN and requested that emergency medical services (EMS) meet the flight on arrival in Toronto. The aircraft landed without further incident in Toronto and the crew member was transported to hospital by EMS.