April 3, 2020

Incident at 4620N / 07615W (Weather balloon, meteor, rocket, CIRVIS/UFO)

An Air Canada Airbus A330-343 (C-GHKX/ACA308) from Vancouver, BC (CYVR) to Montreal/Pierre Elliott Trudeau, QC (CYUL) reported that it had passed by a large balloon at FL380. No impact on operations.

February 6, 2020

Incident at 4853N / 06553W

An Etihad Airways Airbus A380-800 (ETD11B) from Abu Dhabi, United Arab Emirates (OMAA) to New York/John F. Kennedy, NY (KJFK) experienced severe turbulence at FL400. Aircraft was descended to FL380 and again experienced severe turbulence. Aircraft was further descended to FL360 and reported smooth. No emergency, no injuries or impact on operation.

January 4, 2020

Incident at 36NM CRANBROOK / CANADIAN ROCKIES INTL BC (CYXC)

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.

February 1, 2020

Incident at In the vicinity of: Helena, MT (KHLN)

TSB Report #A20F0039: C-FYJD, a B737-800 aircraft operated by Sunwing, was conducting flight SWG677 from Varadero Juan Gualberto Gomez (MUVR), Cuba to Vancouver Intl (CYVR), BC. During cruise, severe turbulence was encountered in vicinity of Helena Regional (KHLN), MT while on descent from FL380 down to FL350. During the encounter there was a temporary loss of control of the aircraft which was subsequently regained. The seat belt sight was on and a PA was made to passengers to be seated. A passenger that was in the aft lavatory during the event and sustained minor injuries. The flight continued to destination without further incident.

June 20, 2020

Incident at 143NM CALGARY AB VOR/DME (YYC)

An emergency locator transmitter (ELT) report was received from a Western Global Airlines McDonnell Douglas MD 11F (WGN9411), enroute from Shreveport, LA (KSHV) to Anchorage, AK (PANC) at FL380. No impact on operations.

April 6, 2020

Incident at 5008N / 09852W

A Jazz Bombardier CL-600-2D24 (C-GJZV/JZA8337) from Winnipeg/James Armstrong Richardson, MB (CYWG) to Calgary, AB (CYYC), cleared to climb to FL380, reported a pressurization issue when climbing through FL331 and commenced a descent, reaching FL316. No traffic in the vicinity. No operational impact.

January 3, 2020

Incident at 5214N / 11625W

A British Airways Boeing 777-200 (BAW49) on a flight from London/Heathrow Intl, UK (EGLL) to Seattle/Tacoma, WA (KSEA) was descending from FL400 to FL380 to find a smoother ride. The aircraft descended to FL373 and then started climbing back to its cleared altitude. The pilot advised air traffic control (ATC) that the aircraft was unable to level off at FL380 due to mountain wave activity. No impact to operations.

February 6, 2020

Incident at 4626N / 06554W

Severe turbulence reported by a Dassault Falcon 8X, corporately registered in India (VTFCN), at FL400. No reported damage or injuries. Aircraft descended to FL380. No impact to operations.

March 22, 2020

Incident at 4430N / 04900W (Communication navigation surveillance/air traffic system)

An Air Transat Airbus A330-342 (C-GTSO/TSC785) from Malaga, Spain (LEMG) to Montreal/Pierre Elliott Trudeau, QC (CYUL) appeared as an uncorrelated target at approximately 4430N 04900W, FL380 westbound, from New York Oceanic Airspace into Gander Oceanic Airspace. No estimate had been received by Gander.

March 3, 2020

Incident at GANDER CENTRE / ACC DE GANDER

An American Airlines Boeing 777-200 (N792AN/AAL39) from London/Heathrow, United Kingdom (EGLL) to Miami, FL (KMIA) climbed to FL390 and was expected to climb to FL380. No other traffic was affected. No impact to operations.

September 24, 2019

Incident at 5807N / 06547W

A Virgin Atlantic Airways aircraft (VIR109V) reported severe turbulence at FL380. Turbulence was forecasted in an active significant meteorological information (SIGMET) advisory.

December 17, 2019

Incident at PESAC intersection

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.

August 29, 2019

Incident at 40NM SHERBROOKE QC VOR/DME (YSC)

The loud and clear signal of an emergency locator transmitter (ELT) was heard by an aircraft at FL380 for 2 minutes. Source unknown. The Joint Rescue Coordination Centre (JRCC) in Trenton was notified.

August 23, 2019

Incident at 40NM MANIWAKI QC (CYMW)

The intermittent signal of an emergency locator transmitter (ELT) was heard by an aircraft at FL380. The signal stopped at 2141Z. The Joint Rescue Coordination Centre (JRCC) in Trenton was notified.

June 5, 2019

Incident at 10NM RIVIÈRE-DU-LOUP QC VOR (YRI)

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.

April 28, 2019

Incident at 30NM SEPT-ILES QC VOR/DME (YZV) (ATS operating irregularity)

A United Airlines Boeing 777-200 (UAL56) from Paris, France (LFPG) to Newark, NJ (KEWR) and an Air Canada Boeing 787-9 (ACA879) from Zurich, Switzerland (LSZH) to Toronto/Lester B. Pearson, ON (CYYZ) had less than required separation after air traffic control (ATC) issued a climb clearance to UAL56.
TSB #A19Q0054: N788UA, a United Airlines Boeing 777-200, was on instrument flight rules (IFR) flight UAL56 from Paris/Charles de Gaulle, France (LFPG) to Newark/Liberty Intl, NJ (KEWR). C-FRTU, an Air Canada Boeing 787-9, was on instrument flight rules (IFR) flight ACA879 from Zürich-Kloten, Switzerland (LSZH) to Toronto/Lester B. Pearson Intl, ON (CYYZ). UAL56 was level at FL360, while ACA879 was also level at FL380. The two aircraft followed headings that were similar, but divergent. Approximately 30 NM southwest of Sept-Îles, QC (CYZV), UAL56 was cleared to climb to FL380. There was a loss of separation when UAL56 established itself at FL380 and the horizontal distance between the 2 aircraft was reduced to 8.8 NM. The required separation was 10 NM horizontally, or 1 000 ft vertically.

January 23, 2019

Incident at 4940N / 06548W

An Aer Lingus Airbus A330-300 (EIN12C) from Dublin, Ireland (EIDW) to Chicago/OHare International, IL (KORD) encountered severe turbulence at FL380. The aircraft descended to FL360. No impact.

January 24, 2019

Incident at 5047N / 06430W

A LOT Polish Airlines Airbus A330-200 (LOT26) from Warsaw/Frederic Chopin, Poland (EPWA) to New York/John F. Kennedy International, NY (KJFK) reported severe turbulence at FL380, and descended to FL340.

August 9, 2019

Incident at VIDRI intersection

A KLM Royal Dutch Airlines Boeing 777-200 (PHBQN/KLM217) from Amsterdam/Schiphol, Netherlands (EHAM) to Vancouver, BC (CYVR) started a descent from FL380 to FL260 and was subsequently stopped at FL370 to ensure separation with a WestJet Boeing 737-7CT (C-GWJF/WJA716) from Vancouver, BC (CYVR) to Toronto/Lester B. Pearson International Airport, ON (CYYZ), passing approximately 4 miles North of WJA716.

November 7, 2019

Incident at 5223N / 09053W (ELT)

A British Airways Boeing 747-700 (BAW219V) on a flight from London/Heathrow Intl, UK (EGLL) to Denver Intl, CO (KDEN) was southwest bound enroute to Denver at FL380 when the pilot reported a very strong emergency locator transmitter (ELT). They reported losing the signal 5 minutes later, no impact to operations.

September 25, 2019

Incident at TUKIR intersection

In the vicinity of TUKIR at FL380, a 650584 Alberta Inc. Learjet 35A (C-GAJS) on a flight from Halifax/Stanfield Intl, NS (CYHZ) to Toronto/Lester B. Pearson Intl, ON (CYYZ) deviated off its cleared route. The controller noticed the deviation and re-cleared the aircraft to maintain separation with an Air Canada Rouge Boeing 767-333 (C-FMWU/ROU1967) on a flight from Berlin, Germany (EDDT) to Toronto/Lester B. Pearson Intl, ON (CYYZ). No loss of separation. No operational impact.

September 2, 2019

Incident at 4923N / 08118W (ELT)

A loud and clear emergency locator transmitter (ELT) signal was heard by a British Airways Boeing 777-200 (BAW97A) flying from London/Heathrow (EGLL), United Kingdom, to Houston/George Bush Intl (KIAH), TX, at FL380. The signal was continuous until a transfer to Toronto (YYZ). The Joint Rescue Coordination Centre (JRCC) Trenton and the Toronto (YZ) shift manager were advised. No impact on operations.

August 29, 2019

Incident at In the vicinity of: MUSKOKA ON (CYQA)

An Aer Lingus Ltd. Airbus A330-300 (EIDUZ/EIN123) from Dublin, Ireland (EIDW) to Chicago/OHare, IL (KORD) reported an emergency locator transmitter (ELT) signal in the vicinity of Muskoka, ON (CYQA) at FL380. No information on strength or length. No operational impact.

December 14, 2019

Incident at 120NM E Charleston AFB, SC (KCHS)

TSB Report #A19F0319: C-GBHZ, an Airbus 319-114 operated by Air Canada Rouge, was conducting flight ROU1986 from Montréal/Pierre Elliott Trudeau (CYUL), QC to Punta Cana Intl. (MDPC), Dominican Republic. During cruise at FL380 in light turbulence, the flight crew felt vibrations and observed the right hand engine N1 indication rolling back, while all other indications were normal including engine vibration indications. The flight crew declared a PAN PAN and requested a descent. The aircraft descended to FL280 at which point the issue rectified. The flight crew decided to divert to the nearest suitable airport, which was Nassau/ Lynden Pindling Intl. (MYNN), Bahamas, where the aircraft landed without further incident.

March 22, 2019

Incident at 430NM SSE KIAH - George Bush Intercontinental - Houston

TSB Report #A19F0079: C-FUWS, a Boeing 737-700 aircraft operated by WestJet, was conducting flight WJA2261 from Liberia/Daniel Oduber Quirós Intl (MRLB), Costa Rica to Calgary Intl (CYYC), AB with 5 crew members and 107 passengers on board. During cruise flight at FL380, a cabin crew member experienced a medical incident. The flight crew contacted Medlink, and the decision to divert to Houston/George Bush Intercontinental (KIAH), TX was elected. Duties were distributed to other cabin crew members for the rest of the flight, and the aircraft landed without further incident at KIAH. Once at the gate, the ill cabin crew member was taken to the hospital by Emergency Medical Services (EMS).

May 5, 2019

Incident at 4802N / 08854W (ELT)

A WestJet Boeing 737-7CT (C-GMWJ/WJA439) from Toronto/Lester B. Pearson, ON (CYYZ) to Edmonton, AB (CYEG) reported an emergency locator transmitter (ELT) for 2 minutes 25 SE Thunder Bay, ON (CYQT) at FL380. Joint Rescue Coordination Centre (JRCC) Trenton advised.

November 17, 2019

Incident at 5216N / 11605W

A Flair Airlines Boeing 737-86N (C-FFLA/FLE102) on a flight from Edmonton Intl, AB (CYEG) to Vancouver Intl, BC (CYVR) was in cruise at FL380 when they encountered moderate mountain wave and the aircraft climbed 400 feet. They were able to descend back to FL380 and then requested a different altitude to cruise at. No further operational impact.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Aircraft that encountered mountain wave was C-FFLA. There was no log book write up and no maintenance actions were necessary.

August 29, 2019

Incident at 4905N / 09534W

A Federal Express Corporation Airbus A310-324 (N811FD/FDX134) on a flight from Memphis Intl, TN (KMEM) to Winnipeg/James Armstrong Richardson Intl, MB (CYWG) was northwest bound descending from FL380 to FL290 and advised responding to a traffic alert and collision avoidance system (TCAS) resolution advisory (RA). The traffic was a southeast bound Air China Cargo Company Boeing 777-200 (B2094/CAO1053) on a flight from Anchorage Intl, AK (PANC) to Chicago/OHare Intl, IL (KORD) at FL330 which passed 5.1NM south of FDX134. No other impact to operations.
Update TSB Report #A19C0107: N811FD, a Airbus A310-324 aircraft operated by FedEx, was conducting cargo flight FDX134 from Memphis Intl (KMEM), USA to Winnipeg/James Armstrong Richardson Intl (CYWG), MB. At approximately 100 nm SE of CYWG, FDX134 requested a descent from flight level 380 and was cleared to flight level 290 by Winnipeg Centre Area Control Centre (ACC). FDX134 subsequently started the descent. ACC then cleared B-2094, a Boeing 777-FFT operated by Air China Cargo as flight CAO1054 at flight 330, to turn right 10 degrees to provide separation with FDX134. As FDX134 was descending through flight level 340, the crew of FDX134 asked ACC about traffic ahead of them. During the radio transmission regarding the traffic, FDX134 received a TCAS TA/RA to climb. FDX134 complied with the TA/RA, notified ACC of the manoeuvre and advised once clear from the traffic. FDX134 continued for an uneventful landing at CYWG. Review of the available radar information indicates that the nearest distance between the two aircraft was 5.1 miles laterally and 600 feet vertically. Minimum separation requirements are 5 miles or 1000 feet.

May 29, 2019

Incident at WINNIPEG / JAMES ARMSTRONG RICHARDSON INTL MB (CYWG) (ELT)

An Air Canada Rouge Boeing 767-300 (ROU1575) from Toronto/Pearson, ON (CYYZ) to Edmonton, AB (CYEG) reported hearing an emergency locator transmitter (ELT) signal for 30 seconds at FL380 while westbound and 85NM southeast (SE) of Winnipeg/Richardson, MB (CYWG).

April 28, 2019

Incident at 125NM SASKATOON / JOHN G. DIEFENBAKER INTL SK (CYXE)

An Anderson Air Ltd. Cessna 680 (C-GTOG) from Santa Barbara, CA (KSBA) to Saskatoon/John G. Diefenbaker Intl, SK (CYXE) was given and read back a descent to FL380. The aircraft was subsequently observed on radar descending below FL369. The pilot was queried and agreed the clearance was to FL380. The controller cleared the aircraft further to FL270; no impact to operations.

June 4, 2019

Incident at 5012N / 05900W

A Lufthansa German Airlines Boeing 747-400 (DLH464) from Frankfurt, Germany (EDDF) to Orlando Intl, FL (KMCO) reported severe turbulence at FL380. The aircraft did not vacate altitude. Halifax flight information centre (FIC) notified. A significant meteorological information (SIGMET) advisory was issued.

November 24, 2019

Incident at 4742N / 06359W

A British Airways aircraft (BAW33K) reported severe turbulence at FL380 and FL360. Flight Information Centre (FIC) was advised.

May 9, 2019

Incident at 4630N / 06430W

A British Airways PLC Boeing 777-200 (BAW2169) from London/Gatwick, United Kingdom (EGKK) to Fort Lauderdale, FL (KFLL) reported moderate to severe turbulence. Aircraft stayed at FL380. Turbulence lasted 10 minutes.

July 21, 2019

Incident at MONCTON CENTRE / ACC DE MONCTON (ELT)

An Aer Lingus Boeing 757-200 (EIN1KL) from Dublin, United Kingdom (EIDW) to Windsor Locks-Bradley, CT (KBDL) at FL380 reported an emergency locator transmitter (ELT) signal with a strength of 4 out of 5, at 4653N/6412W and lasting for 2 to 3 minutes. The Joint Rescue Coordination Centre (JRCC) Halifax was notified. No impact on operations.

May 25, 2019

Incident at MONCTON CENTRE / ACC DE MONCTON

Severe turbulence reported at FL400 by an Alia - The Royal Jordanian Airlines Boeing 787-8 (JYBAC/RJA12B) from Amman/Queen Alia, Jordan (OJAI) to New York/John F. Kennedy, NY (KJFK). The aircraft descended to FL380.

February 12, 2019

Incident at 80NM MIILS intersection

A Lufthansa Airbus A330-300 (DLH6Y) from Munich, Germany (EDDM) to Washington-Dulles Intl, VA (KIDA) reported severe turbulence at FL400. The aircraft descended to FL380.

Incident at 50NM CHARLO NB NDB (CL)

A Boeing 787-9 from London/Gatwick, UK (EGKK) to New York/John F. Kennedy Intl, NY (KJFK) reported severe turbulence at FL400. The aircraft descended to FL380.

January 7, 2019

Incident at 4515N / 06539W

A British Airways Boeing 747 400 (BAW13G) from Heathrow Airport, UK (EGLL) to Boston Intl Airport, MA (KBOS) reported severe turbulence at FL380. The aircraft descended to FL320. No impact on operations. Halifax (HZ) flight information centre (FIC) advised.

December 28, 2018

Incident at 4855N / 06207W

A JET2.COM Limited Boeing 757 200 (EXS087) from Leeds Bradford Airport, UK (EGNM) to Newark Intl Airport, NY (KEWR) reported severe turbulence FL380 and descended to FL360.

Incident at 4529N / 05819W

An Air France Airbus A380-800 (AFR178) from Charles de Gaulle Airport, France (LFPG) to Mexico City Intl Airport, Mexico (MMMX) reported severe turbulence at FL380 and descended to FL360.

Incident at 4836N / 06226W

Severe turbulence reported at FL400. A British Airways Boeing 747 400 (BAW117) from Heathrow Airport, UK (EGLL) to New York/John F. Kennedy Intl Airport, NY (KJFK) descended to FL380.

December 12, 2018

Incident at MONTREAL CENTRE / ACC DE MONTRÉAL

A Flair Airlines Boeing 737-800 (FLE953) from Kangerlussuaq, Greenland (BGSF) to Winnipeg/Richardson, MB (CYWG) reported a loss of pressurization and indicated that it was descending from FL380 to 10 000 ft. FLE953 continued its flight up to its destination. No impact on operations.

June 22, 2018

Incident at 4806N / 07625W (ELT)

A United States Air Force Lockheed C-130 (RCH106) reported hearing an emergency locator transmitter (ELT) at FL380, Joint Rescue Coordination Centre (JRCC) Trenton advised. JRCC Trenton reported an accidental activation of an ELT on the ground in Val-d'Or, QC (CYVO). No impact on operations.

June 6, 2018

Incident at 65NM BAGOTVILLE QC (CYBG)

After having been cleared to climb to FL400, a Government of Canada Department of National Defence McDonnell Douglas CF 18 Hornet (ALUT56) from Bagotville, QC (CYBG) to Bagotville, QC (CYBG) rejected its climb to FL380 and started descending to FL310 with neither clearance nor advisory. Impact on operations: a Delta Airlines Airbus A330-200 (DAL137) from Amsterdam/Schiphol, Netherlands (EHAM) to Detroit/Wayne County, MI (KDTW) had to turn 40 degrees to the right to maintain the necessary separation.

May 9, 2018

Incident at 35NM MONTRÉAL INTL (MIRABEL) QC (CYMX)

A Boeing 777-200 operated by British Airways (GYMML/BAW26E), from London/Heathrow Intl, UK (EGLL) to Houston Intl, TX (KIAH), at FL380, reported hearing a loud-and-clear emergency locator transmitter (ELT) signal between 1554Z and 1558Z. Joint Rescue Co-ordination Centre (JRCC) Trenton was notified. The source was identified as a North American P51-D-25 (C-FVPM) operated by 6565433 Canada Inc. on the ground at Ottawa/Gatineau, QC (CYND). The ELT had been mistakenly triggered. No operational impact.

April 14, 2018

Incident at 4821N / 06519W

A Dreamjet Boeing 757 200 (FHTAG/DJT102) from Paris/Charles de Gaulle, France (LFPG) to Newark, NJ (KEWR) encountered moderate to severe turbulence at FL400 and requested to descend to FL340. The turbulence was present from FL400 to FL380, then conditions improved. No injuries or damage to the aircraft were reported.

March 29, 2018

Incident at 4848N / 06640W

A British Airways Boeing 787-8 (BAW6NC) on a flight from London/Heathrow Int'l, UK (EGLL) to Montreal/Pierre Elliott Trudeau Int'l, QC (CYUL) encountered severe turbulence at FL400 and descended to FL380. No damage or injuries reported. Halifax (HZ) Flight Information Centre (FIC) advised.

August 28, 2018

Incident at VANCOUVER INTL BC (CYVR)

A Delta Airlines Inc. Boeing 757 251 (N556NW/DAL1084) from Minneapolis-St. Paul Int'l Airport, MN (KMSP) to Vancouver Int'l, BC (CYVR) declared an emergency due left side hydraulic failure. The aircraft orbited over the city for approximately 10 minutes then landed safely on Runway 26L. Minimal operational impact.
Update TSB Report #A18P0120 :N556NW, a Boeing 757-251 operating as Delta Airlines flight DAL1084 from Minneapolis-St. Paul Intl, USA (KMSP) to Vancouver Intl, BC (CYVR) was in cruise flight at FL380 when the crew observed a L HYD QTY LOW engine indication and EICAS message. The crew turned off the left hydraulic pumps and pulled the power transfer unit (PTU) circuit breaker. The fluid level subsequently stabilized. During approach to CYVR, when the crew selected hydraulic pumps ON before selecting flaps 1, they received a LE SLAT DISAGREE EICAS message. The crew declared an emergency, requested delay vectors, and extended the flaps using the alternate system. The aircraft landed without further incident. Maintenance personnel found the left landing gear retract actuator line (P/N AS116-08K0194) leaking. The line was replaced and the hydraulic system serviced.

September 21, 2018

Incident at NORTH BAY ON (YYB) VOR/DME (ELT)

A British Airways Boeing 777-200 (GVIIC/BAW9L) from Heathrow, England (EGLL) to Toronto/Lester B. Pearson International, ON (CYYZ) reported an emergency locator transmitter (ELT) signal over North Bay, ON (YYB), at FL380 and at 2010Z. The Joint Rescue Coordination Centre (JRCC) Trenton was advised. No operational impact.

July 15, 2018

Incident at AGDOX intersection (Weather balloon, meteor, rocket, CIRVIS/UFO)

An American, corporately registered Bombardier CL-600-2B16 (N500M) from Teterboro, NJ (KTEB) to Minneapolis St. Paul Int'l, MN (KMSP) at FL380 reported passing a possible weather balloon approximately 1000 feet above them. No operational impact.

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