An automatic dependent surveillance – contract (ADS-C) report indicated that a China Eastern Airlines Corporation Boeing 777-300 (B2021/CES7172) from Toronto/Lester B. Pearson, ON (CYYZ) to Shanghai/Pudong, China (ZSPD) was not following the flight plan route.

An Air Canada Airbus BD-500-1A11 A220-300 (ACA418) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) was on the right base for Runway 24G at CYUL and received a heading of 210 to intercept. The aircraft was subsequently observed turning northwest and appeared to intercept 24D.

A Jazz Bombardier CL-600-2D24 (JZA2254) on an IFR flight from Toronto/Lester B. Pearson, ON (CYYZ) to Halifax/Stanfield, NS (CYHZ) requested to be rerouted to Montreal/Pierre Elliott Trudeau, QC (CYUL) due to an engine indicator light.

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-FWEZ/WEN3543) from Montreal/Pierre Elliott Trudeau, ON (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) was cleared to 5,000 feet. After briefly levelling off, the aircraft was observed at 5500 feet, 2.5NM behind a Jazz Bombardier CL-600-2D24 (C-GOJZ/JZA8970) from Ottawa/Macdonald-Cartier, ON (CYOW) to Montreal/Pierre Elliott Trudeau, QC (CYUL).

While en route, a Turkish Airlines Inc. Boeing 787-9 (THY17W) from Istanbul, Turkey (LTFM) to Toronto/Lester B. Pearson, ON (CYYZ) advised of pressurization issues and requested a descent from FL400 to FL300. No emergency declared and THY17W continued its flight normally.

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3543) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) reported a bird strike on take-off. Nothing found upon inspection. No impact on operations.

Several aircraft, including an Air Canada Boeing 787-9 (C-FVNF/ACA7217) from Zurich, Switzerland (LSZH) to Toronto/Lester B. Pearson, ON (CYYZ), ON; a Government of Canada, Department of National Defense Lockheed Martin CC-130J Hercules (CFC4250) from Deer Lake, NL (CYDF) to Toronto/Lester B. Pearson, ON (CYYZ); and a Government of Canada, Department of National Defense Lockheed CC-130H Hercules (CFC2291) from Winnipeg/James Armstrong Richardson, MB (CYWG) to Halifax/Stanfield, NS (CYHZ) reported an emergency locator transmitter (ELT) signal between 1508Z and 1552Z, near St-Michel-des-Saints, QC (CSM5). Source unknown. The Joint Rescue Coordination Center (JRCC) Trenton was notified. No impact on operations.

A loud and clear emergency locator transmitter (ELT) signal was heard by a Jazz Bombardier CL-600-2D24 (C-FJGZ/JZA8007) from Deer Lake, NL (CYDF) to Toronto/Lester B. Pearson, ON (CYYZ) at FL300. The Joint Rescue Coordination Center (JRCC) Trenton was notified. No impact on operations.

A loud and clear emergency locator transmitter (ELT) signal was heard by an Air Canada Boeing 787-9 (ACA857) from London/Heathrow, United Kingdom (EGLL) to Toronto/Lester B. Pearson, ON (CYYZ), near La Tuque, QC (CYLQ) at FL400. The Joint Rescue Coordination Centre (JRCC) Trenton was notified. No impact on operations. The ELT source was identified as a Chrono Aviation Inc. Beech B300 (C-GJKA/NDL350) from La Macaza/Mont-Tremblant, QC (CYFJ) to Toronto/Lester B. Pearson, ON (CYYZ).

An Académie Aéronautique Cessna 172N (C-GIGW) from Montreal/Mirabel, QC (CYMX) to Montreal/Mirabel, QC (CYMX) experienced a flat tire on Runway 24. The runway was closed from 1555Z to 1635Z. Operational impact involved delays for 4 aircraft: a Cargair Cessna 172N (C-GIXH); a Cargair Cessna 172N (C-GIXX); an Air Canada Boeing 777-300 (ACA2337) from Montreal/Mirabel, QC (CYMX) to Toronto/Lester B. Pearson, ON (CYYZ); and a Cargair Cessna 172N (C-GBWR).

At Montreal/Pierre Elliott Trudeau, QC (CYUL), an Aviation Starlink Inc. Dassault Falcon 2000EX (C-GOHB) advised being targeted by a laser. No impact on operations.
UPDATE from the operator: Correction to the narrative: Aviation Starlink officials confirmed that it was not a laser strike. While approaching Runway 06R at Montreal/Pierre Elliott Trudeau, QC (CYUL), the beacon at the top of Place Ville Marie was steady and not rotating. Therefore, the beacon light was in the pilots line of sight for a part of the approach.
UPDATE: AOR 272287-V2: Aircrafts origin and destination information added. Narrative updated to read as follows: "The pilot of an Aviation Starlink Inc. Dassault Falcon 2000EX (C-GOHB) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL), while on approach to Runway 06R at CYUL, had the Place Ville Marie beacon light in their line of sight for a part of the approach. The beacon was steady and not rotating at the time."

A Propair Inc. Beech A100 (C-FDOU/PRO4375) from Rouyn-Noranda, QC (CYUY) to Toronto/Lester B. Pearson, ON (CYYZ) was observed on radar 3.5NM to the east of its anticipated profile. The aircraft was cleared direct IMEBA from its present position. No impact on operations.

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 787-8 (C-GHQY/ACA103) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) reported a bird strike while landing on Runway 08L. No operational impact.

An Air Canada Boeing 737 MAX 8 (C-FSNU/ACA113) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) reported a bird strike while landing on Runway 08L, resulting in a runway closure. No operational impact.

While 11NM final for Runway 26L, an Air Canada Airbus A321-211 (C-GIUF/ACA113) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) reported a very small drone on its right side, at 3000 feet. No operational impact.

A WestJet Boeing 737-8CT (C-FWJS/WJA711) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR), after landing on Runway 26R, advised of a remotely piloted aircraft system (RPAS) encounter at 800ft while on the approach. The RPAS was 100ft from the right wing of the aircraft. The RPAS was not observed by air traffic control (ATC). Royal Canadian Mounted Police (RCMP) advised. No operational impact.

An Air Canada Airbus A320-214 (C-FZQS/ACA113) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) reported a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) in reference to a Pacific Flying Club Cessna 152 (C-GZSA) on a VFR flight from Vancouver/Boundary Bay, BC (CZBB) to Vancouver/Boundary Bay, BC (CZBB). No operational impact.

A Government of Canada, Department of National Defence Boeing CC-177 Globemaster III (CFC3670) from Trenton, ON (CYTR) to Kelowna, BC (CYLW) landed on Runway 16. The runway was subsequently closed for 15 minutes. Two aircraft were delayed for 15 minutes: a Chartright Air Gulfstream 200 (HRT020) from Kelowna, BC (CYLW) to Toronto/Lester B. Pearson, ON (CYYZ), and a privately registered Cessna 172L from Kelowna, BC (CYLW) to Kelowna, BC (CYLW).

An Air Canada Boeing 787-8 (C-GHPX/ACA128) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson (CYYZ) reported a cracked windscreen during its initial check-in at FL310, 20NM northwest of Princeton, and returned to CYVR. No further operational impact.
UPDATE: TSB Report #A21P0020: C-GHPX, an Air Canada Boeing 787-8 aircraft operating as flight ACA128, was conducting a flight from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ), with 10 crew members and 104 passengers onboard. During the initial climb, at approximately 7NM northwest of Princeton, BC (CYDC), the right hand windscreen cracked and triggered a message for the windshield heating system on the Engine Indicating and Crew Alerting System (EICAS). The flight crew completed the emergency checklist, diverted back to CYVR, and declared a "PAN PAN". The aircraft landed without incident and no emergency vehicles were required. There were no injuries and no damage to the aircraft. Maintenance replaced the right hand windscreen and, as a precaution, replaced the window heat controller.

In the handover from the Cleveland Air Route Traffic Control Centre (ZOB), an American, corporately registered Raytheon Hawker 900XP (N900XG) from Las Vegas, NV (KLAS) to Toronto/Lester B. Pearson, ON (CYYZ) experienced a pressurization problem. An emergency was declared with ZOB and a rapid descent was initiated. N900XG was given priority handling and stated that it did not require any emergency equipment on standby at CYYZ. The flight landed uneventfully at 0110Z. No operational impact.

An Airsprint Inc. Cessna 525A (C-FASP/ASP519) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) was instructed to conduct a go-around for Runway 24L due to a Jazz Embraer ERJ 170-200 SU (C-FEJY/JZA7609) from Toronto/Lester B. Pearson, ON (CYYZ) to Chicago/OHare, IL (KORD) crossing the Runway 24L approach hold line. ASP519 landed on Runway 24L without issue at 1852Z. No other impact to operations.

An Air Canada Boeing 787-8 (ACA7284) from Tokyo/Narita, Japan (RJAA) to Toronto/Lester B. Pearson, ON (CYYZ), flying the NUBER4 standard terminal arrival (STAR), was experiencing flight management system (FMS) discrepancies between the FMS path and the air traffic control (ATC) path. The aircraft was 2.2NM off NUBER and NUBER direct PENGO without ROKTO. No operational impact.

An Air Canada Boeing 737 MAX 8 (ACA114) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ) conducted a go-around for Runway 33R. ACA114 landed at 2301Z. No operational impact.

A drone sighting was reported at DAVSI by a Lufthansa German Airlines Airbus A350-900 (DLH471) from Toronto/Lester B. Pearson, ON (CYYZ) to Frankfurt, Germany (EDDF). No operational impact.

At Toronto/Lester B. Pearson, ON (CYYZ), a Toronto area control centre (ACC) employee spotted a remotely piloted aircraft system (RPAS) at the threshold of Runway 33L, at approximately 100 ft. The Greater Toronto Airports Authority (GTAA) and local police were notified. No impact to operations.

An Air Canada Airbus BD-500-1A11 A220-300 (C-GNGV/ACA454) from Toronto/Lester B. Pearson, ON (CYYZ) to Ottawa/Macdonald-Cartier, ON (CYOW), reported hitting a bird. No bird found.

On departure from Runway 06R, an Air Canada Airbus A321-211 (C-GIUF/ACA1254) from Toronto/Lester B. Pearson, ON (CYYZ) to Kingston/Norman Manley, Jamaica (MKJP) reported seeing a dead bird on the runway during its takeoff roll. No other aircraft reported hitting a bird. No operational impact.

A flight plan was received at the London flight information centre (FIC) for a Quorn Capital Corp. Piper PA-32R-310T (C-GKTT) with a departure from Toronto/Lester B. Pearson, ON (CYYZ) and a destination of Edenvale, ON (CNV8). The plan was supposed to be filed with a departure from Burlington, ON (CZBA) to a destination of CNV8, via ForeFlight.

An Air Canada Airbus BD-500-1A11 A220-300 (ACA168) from Edmonton, AB (CYEG) to Toronto/Lester B. Pearson, ON (CYYZ) conducted a go-around. The aircraft landed at 2106Z. No operational impact.

A Novajet Gulfstream 200 (C-GJLR/NOJ20) from Rocky Mountain, CO (KBJC) to Toronto/Lester B. Pearson, ON (CYYZ) spotted a white remotely piloted aircraft system (RPAS) on approach to Runway 24L at 1000ft. No impact to operations.

A Jazz de Havilland DHC-8-402 (C-GKUK/JZA8282) from Timmins/Victor M. Power, ON (CYTS) to Toronto/Lester B. Pearson, ON (CYYZ) reported hearing an emergency locator transmitter (ELT) signal 3NM south of CYTS from approximately 0940Z to 0943Z.

Filed on the AVSEP6 departure, a Korean Airlines Boeing 747-800 (KAL284) from Toronto/Lester B. Pearson, ON (CYYZ) to Anchorage, AK (PANC) began a left turn through 2700 feet. The standard instrument departure (SID) requires a right turn to 340 degrees through 2100 feet. With no conflicting traffic, the controller cleared KAL284 direct AVSEP since it was already in the turn. The controller then cleared KAL284 to climb and maintain FL230, which was read back. A moment later, KAL284 called to confirm that it had been cleared to FL340, and KAL284 was again instructed to maintain FL230. No operational impact.

The controller asked an Air Canada Boeing 787-8 (ACA104) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ) if it was on the standard terminal arrival (STAR) route, which ACA104 affirmed. ACA104 was actually offset by 1NM to the right of the STAR. ACA104 was asked to switch to its other transponder and was cleared direct NUBER, which corrected the issue. No operational impact.

A Flair Airlines Ltd. Boeing 737-86J (C-FFLC/FLE311) from Winnipeg/James Armstrong Richardson, MB (CYWG) to Toronto/Lester B. Pearson, ON (CYYZ) reported a remotely piloted aircraft system (RPAS) at 4000ft, approximately 12NM Northeast (NE) of CYYZ, over Canadas Wonderland. No operational impact.

A Flightpath Charter Airways Inc. Embraer EMB-505 (C-FWTF) from Toronto/Lester B. Pearson, ON (CYYZ) to Fort Lauderdale, FL (KFLL) entered Runway 06R for departure via Taxiway D6, an oblique angled taxiway. The National Operations Directive (NOD) 2021-025 and Operational Directive YYZ-OD-2021-263 expressly forbids aircraft using D6 for takeoff, as it is an oblique angled taxiway. The tower instructed the aircraft to backtrack to the threshold, in full view of the threshold, and subsequently cleared it for takeoff.

An Air Canada Boeing 777-300 (ACA7282) from Incheon, South Korea (RKSI) to Toronto/Lester B. Pearson, ON (CYYZ) advised of a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) on final for Runway 24L, over Toronto/Downsview, ON (CYZD) at A030. The advisory was in reference to VFR traffic, an aircraft in the circuit at CYZD, that was unverified at A014. ACA7282 climbed 500 feet momentarily and continued on its approach. No operational impact.

A Government Of Canada, Department Of National Defence Lockheed C-130 (RSCU333) from Trenton, ON (CYTR) to Trenton, ON (CYTR) reported experiencing a laser strike. No operational impact.

An Air Canada Airbus BD-500-1A11 A220-300 (ACA604) from Toronto/Lester B. Pearson, ON (CYYZ) to Halifax/Stanfield, NS (CYHZ) reported a bird strike on departure. 2 barn swallows were found. 4 aircraft were delayed by 7 minutes.

An Air Canada Airbus BD-500-1A11 A220-300 (ACA156) from Toronto/Lester B. Pearson, ON (CYYZ) to Edmonton, AB (CYEG) advised of a possible bird strike. Four aircraft were delayed by 5 minutes due to the runway inspection.

An Air Canada Airbus BD-500-1A11 A220-300 (ACA156) from Calgary, AB (CYYC) to Toronto/Lester B. Pearson, ON (CYYZ) conducted a go-around for Runway 15L. No operational impact. The aircraft landed at 0940Z.

A Jazz de Havilland DHC-8-311 (C-FACT/JZA8289) from Toronto/Lester B. Pearson, ON (CYYZ) to Timmins/Victor M. Power, ON (CYTS) reported a possible bird strike on rotation from Runway 23. Runway inspected, nothing found. No impact on operations.

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-GWEQ/WEN3543) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) reported receiving an emergency locator transmitter (ELT) signal when 20NM North of Trenton, ON (CYTR). Subsequently, the aircraft lost the signal at 1228Z. The Joint Rescue Coordination Centre (JRCC) Trenton was advised.

A WestJet Encore Bombardier DHC-8-402 (C-GDEW/WEN3343) from Halifax/Stanfield, NS (CYHZ) to Toronto/Lester B. Pearson, ON (CYYZ) reported an emergency locator transmitter (ELT) signal at FL240, 25NM North of Trenton, ON (CYTR). Joint Rescue Coordination Centre (JRCC) Trenton (TR) advised. No operational impact.

A KLM Royal Dutch Airlines Boeing 787-10 (KLM86) from Toronto/Lester B. Pearson, ON (CYYZ) to Amsterdam, Netherlands (EHAM) flew direct IPTOS after VERDO intersection, which was a deviation from the flight planned route. The pilot said they received VERDO-IPTOS by clearance (CLX) delivery. After reviewing the tapes, both CLX delivery and KLM86 had the correct route of VERDO6-IPTOS. The standard instrument departure (SID) number after VERDO was not inputted into the flight management system (FMS). No impact to operations.

An Air Canada Airbus BD-500-1A11 A220-300 (C-GROV/ACA702) from Toronto/Lester B. Pearson, ON (CYYZ) to Newark, NJ (KEWR) reported a remotely piloted aircraft system (RPAS) climbing through A096. No operational impact.
UPDATE: AOR-274236-V2: ACA702 reported a remotely piloted aircraft system (RPAS) climbing through 9600. No operational impact.

An Air Canada Airbus A320-214 (C-FGJI/ACA385) from Toronto/Lester B. Pearson, ON (CYYZ) to Thunder Bay, ON (CYQT) reported foreign object debris (FOD) while in position for take-off. Runway inspected. Multiple reflectors and caulking found and removed on Runway 24L. Suspected debris caused by the departure of a Korean Airlines Boeing 747-800 (HL7639/KAL284) from Toronto/Lester B. Pearson, ON (CYYZ) to Anchorage, AK (PANC). Operational impact: approximately 10 aircraft were delayed by up to 10 minutes.

An Air Canada Airbus A320-211 (ACA2329) from Melbourne, Australia (KMLB) to Toronto/Lester B. Pearson, ON (CYYZ) declared "PAN PAN" at 1906Z and advised the terminal control unit (TCU) that its number two engine was out. The aircraft landed safely on Runway 05 and taxied to the gate, with the Aircraft Rescue and Fire Fighting (ARFF) unit following. Two aircraft landed on Runway 06R during the event: an Air Canada Boeing 787-8 (ACA104) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson, ON (CYYZ), and an American, corporately registered Bombardier BD-100-1A10 (N756QS). ACA2329 landed without further incident on Runway 05 at 1922Z. No impact to operations.

A loud and clear emergency locator transmitter (ELT) signal was heard by a WestJet Encore Ltd. de Havilland DHC-8-402 (C-GWEU/WEN3543) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) at FL240. Joint Rescue Coordination Center (JRCC) Trenton notified. The source of the signal was a Government of Canada, Department of Transport Beech C90A (C-FGXJ/TGO988). No impact to operations.