July 30, 2019

Incident at 156NM LA GRANDE RIVIÈRE QC (CYGL)

En route to Mary River, NU (CMR2) an Air Nunavut Dassault Falcon 20 (BFF20) from Toronto/Lester B. Pearson, ON (CYYZ) to Mary River, NU (CMR2) reported an engine failure and declared an emergency. BFF20 requested to divert to La Grande-Rivière, QC (CYGL). Coordination carried out. BFF20 landed without incident at CYGL at 1358Z. No impact. The National Operations Centre (NOC) and Joint Rescue Coordination Centre (JRCC) Trenton was notified.
Update TSB #A19Q0123: C-GZOX, a Dassault-Breguet Falcon 20, with two crew members and five passengers on board, was flying IFR from Toronto/Lester B. Pearson Intl, ON, to Mary River, NU. When the aircraft was at FL370 approximately 156 NM north of La Grande Rivière (CYGL), QC, the left engine (GARRET TFE731-5BR-2C) stopped. The flight crew declared an emergency and requested a diversion to CYGL, where the aircraft landed without incident. No one was hurt. The company is investigating the cause of the engine failure.

January 24, 2019

Incident at 5039N / 06248W

A British Airways Boeing 777-200 (BAW5CA) from Toronto/Pearson International, ON (CYYZ) to London/Heathrow, UK (EGLL) reported severe turbulence at FL370, and descended to FL350. No impact to operations.

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.

January 29, 2019

Incident at VANCOUVER INTL BC (CYVR)

An Air Canada Boeing 737-8 (C-FSEQ/ACA534) from Kahului, HI (PHOG) to Vancouver Intl, BC (CYVR) reported a low oil quantity and low oil pressure on Engine #2. The aircraft declared an emergency at 0505Z. It reported shutting down Engine #2 at 0513Z. The aircraft landed safely on Runway 26L at 0538Z with emergency services standing by. The aircraft taxied off the runway under their own power.
Update TSB Report #A19P0015: C-FSEQ, a Boeing 737-8 MAX aircraft operated by Air Canada, was conducting flight ACA534 from Kahului (PHOG), HI to Vancouver Intl (CYVR), BC with 6 crew members and 134 passengers on board. During cruise flight at FL370, the flight crew noticed a low oil quantity and a low oil pressure on the right engine (CFM LEAP 1B27). The flight crew elected to continue the flight, while monitoring the oil level. At the top of descent into CYVR, the oil quantity for the right engine was near zero. The flight crew consulted the QRH, shut the right engine down, and declared a MAYDAY. The flight landed without further incident with ARFF standing by. There were no injuries. The operator’s maintenance inspected the aircraft and found that the oil loss came from the starter. The starter malfunction also caused damage to the engine fan case. A Service Difficulty Report (SDR) was filed with Transport Canada Civil Aviation (TCCA). The starter and engine were removed and replaced. The aircraft was returned to service.

March 2, 2019

Incident at LUNGE intersection

An Air Canada Airbus A320 (ACA386) from Winnipeg/Richardson Intl, MB (CYWG) to Montreal/Trudeau Intl, QC (CYUL) declared MAYDAY due to a disruptive passenger onboard and requested an immediate diversion to Val-dOr, QC (CYVO). ACA386 requested that the Royal Canadian Mounted Police (RCMP) meet the flight on arrival. ACA386 was handed off to the Montreal (YUL) Centre, who arranged for the RCMP, and the flight landed at CYVO at 2306Z. No impact to Toronto, ON (YYZ) operations.
Update TSB Report #A19O0022: C-FZQS, an Airbus 320-200 aircraft operated by Air Canada, was conducting flight ACA386 from Winnipeg/James Armstrong Richardson Intl (CYWG), MB to Montreal/Pierre Elliott Trudeau Intl (CYUL), QC with 5 crew members and 90 passengers on board. During cruise flight at FL370, the flight crew declared a MAYDAY due to a disruptive passenger, requesting an immediate diversion to Val D’Or (CYVO), QC, as well as police for the arrival. ACA386 landed at CYVO without further incident, and police met the aircraft.

January 7, 2019

Incident at In the vicinity of: TORONTO / LESTER B. PEARSON INTL ON (CYYZ) (Aerodrome, runway or taxiway shutdown)

An Air Canada Airbus A319-114 (C-GBHM/ACA152) from Calgary Intl, AB (CYYC) to Toronto/Lester B. Pearson Intl, ON (CYYZ) declared PAN PAN (for a technical issue) with North sector. Aircraft afforded priority and landed without further incident at 0456Z.
Update TSB Report #A19O0003: C-GBHM, an Airbus 319-100 aircraft operated by Air Canada, was conducting flight ACA152 from Calgary Intl (CYYC), AB to Toronto/Lester B. Pearson Intl (CYYZ), ON. During cruise flight at FL370, the flight crew received an LGCIU 1 & 2 FAIL ECAM message. The flight continued to destination and, on approach to CYYZ, the flight crew declared a PAN PAN, and extended the landing gear using the manual gear extension system. Additionally, the flight crew requested to be towed off the runway after landing. The aircraft landed without further incident on Runway 05 with ARFF standing by, and stopped on Taxiway E for inspection. Once ARFF released the aircraft, it was towed to the gate.

May 16, 2019

Incident at 385 NM N Rio Hata

TSB #A19F0162: C-FWGH, a Boeing 737-800 aircraft operated by Sunwing Airlines, was conducting flight SWG774 from Toronto/Lester B. Pearson Intl (CYYZ), ON to Río Hato/Scarlett Martinez Intl, (MPSM), Panamá with 7 crew members and 145 passengers on board. Shortly after entering Panamas airspace at FL370, the flight was approaching an area of moderate convective weather and required to deviate to avoid it. As the frequency was extensively congested, the flight crew declared a PAN PAN in order to establish priority handling. Approximately 1 minute later, ATC contacted the flight crew and authorized the deviation. The flight continued to destination without further incident.

February 1, 2019

Incident at 4211N / 06716W (ELT)

An emergency locator transmitter (ELT) signal was reported by a British Airways Boeing 747-400 (BAW178) from New York/John F. Kennedy Intl, NY (KJFK) to Heathrow, UK (EGLL) and a Virgin Atlantic Airways Limited Airbus A340-600 (VIR26Q) from New York/John F. Kennedy Intl , NY (KJFK) to Heathrow, UK (EGLL). Both aircraft were at FL370. The ELT signal was described to be strength 5 and have a duration of approximately 10 minutes. The Joint Rescue Coordination Centre (JRCC) Trenton was advised.

June 4, 2019

Incident at REGINA INTL SK (CYQR)

An emergency locator transmitter (ELT) signal was heard from 0645Z to 0648Z, between 105NM and 140NM from Saskatoon, SK (YXE) VORTAC at FL370. The Joint Rescue Coordination Centre (JRCC) Trenton was advised. Several other reports were received. The source was located in a hangar at Regina, SK (CYQR) and was determined to be a privately registered Reims FT337GP. JRCC Trenton advised that the signal was turned off at 1250Z.

May 20, 2019

Incident at 50NM WINNIPEG / JAMES ARMSTRONG RICHARDSON INTL MB (CYWG)

A United Airlines Boeing 787-8 (UAL182) from Denver, CO (KDEN) to Frankfurt, Germany (EDDF) required an emergency descent from FL370 to 10,000 feet due to an issue with the crew oxygen system. The aircraft elected to return to KDEN. No operational impact.

September 20, 2019

Incident at 4734N / 05825W

Severe turbulence reported at FL370 by a Qatar Airways Airbus A350-900 (QTR728) on a flight from Philadelphia Intl, PA (KPHL) to Doha, Qatar (OTHH). The aircraft descended to FL350. Flight information centre (FIC) advised.

September 26, 2019

Incident at 4556N / 05750W (ELT)

A British Airways Boeing 777-200 (BAW196E) on a flight from Houston Intl, TX (KIAH) to London/Heathrow Intl, UK (EGLL) at FL370 and coordinates 4556N/5750W reported an emergency locator transmitter (ELT) at 0535Z. Halifax joint rescue coordination centre (JRCC) advised and they advised there was a beacon in the area and to disregard ELT reports 100NM East of Sydney/J.A. Douglas McCurdy, NS (CYQY). No impact on operations and safety was not jeopardized.

August 11, 2019

Incident at 5957n / 06531w

A Delta Air Lines Boeing 757 200 (N822DX/DAL260) from Minneapolis, MN (KMSP) to Keflavik, Iceland (BIKF) started climbing from FL350 to FL370 without clearance. The aircraft stopped climbing at FL358 and immediately went back down to FL350. No impact on operations.

August 3, 2019

Incident at 5630N / 05920W

An American, corporately registered Boeing 737-300 (N604SW) from Portland Intl Jetport, ME (KPWM) to Keflavik, Iceland (BIKF) was cleared from FL370 to FL350 due to traffic. After initially levelling off at FL350, the aircraft descended from FL350 without clearance, and contacted air traffic control (ATC) to indicate that they were descending to their expected oceanic flight level. Aircraft was re-cleared to FL290. No traffic. No impact to operations.

May 23, 2019

Incident at 35NM GREENWOOD NS NDB (YZX) (ELT)

Multiple flights reported an emergency locator transmitter (ELT) signal at FL350 and FL370.

April 20, 2019

Incident at MONCTON CENTRE / ACC DE MONCTON

A Swiss Air Lines Airbus A340-300 (HBJMA/SWR52) from Zurich, Switzerland (LSZH) to Boston, MA (KBOS) checked in at FL370 but had been coordinated at FL360. No loss of separation.

March 16, 2019

Incident at 3341N / 06827W

A WestJet Boeing 737-7CT (C-GQWJ/WJA1152) from Toronto/Pearson, ON (CYYZ) to San Juan, Puerto Rico (TJSJ) declared a medical emergency, due to the First Officer feeling ill, with New York Air Traffic Control (KZNY) and advised returning to CYYZ. Priority was afforded and the aircraft landed safely at 1741Z. The captain advised that no airport emergency services were required. No impact on operations.
Update TSB Report #A19F0071: C-GQWJ, a Boeing 737-700 aircraft operated by WestJet, was conducting flight WJA1152 from Toronto/Lester B. Pearson Intl (CYYZ), ON to San Juan/Luis Muñoz Marín Intl (TJSJ), Puerto Rico with 5 crew members and 126 passengers on board. During cruise flight at FL370, approximately 470 nm east of Wilmington Intl (KILM), NC, a flight crew member was unable to perform flight duties due to illness. A medical professional travelling as a passenger administered first aid, while the other flight crew member initiated a return to CYYZ. Emergency Medical Services (EMS) were requested as a precaution on arrival, and the aircraft landed without further incident. The flight crew member was assessed by EMS personnel, and released shortly thereafter.

March 12, 2019

Incident at In the vicinity of: JEBBY intersection (ATS operating irregularity)

Estimate passed to the Moncton (QM) controller for JEBBY from New York (NY) on a Thomas Cook Airlines Ltd. Airbus A330-243 (GMLJL/TCX2619) from Frank Pais, Cuba (MUHG) to Manchester, UK (EGCC). The NY controller passed FL370 and the QM JEBBY controller read back FL350. The aircraft checked in level at FL370. No other traffic in the area. Shift manager and NY advised. No operational impact.

March 19, 2019

Incident at 5105N / 04331W

At position 5105N/04331W and FL370, a British Airways Boeing 777-236 (G-ZZZA/BAW11J) from New York/John F. Kennedy Intl, NY (KJFK) to London/Heathrow, UK (EGLL) declared MAYDAY and requested turnback to St. Johns Intl, NL (CYYT) due to a fire indication in the cargo hold. Unable to obtain IFR clearance. BAW11J offset south of route, descended to FL240, and was issued clearance direct CYYT. BAW11J landed without incident at 0459Z.

February 17, 2019

Incident at 25NM TUSKY intersection (ELT)

A British Airways Boeing 747-700 (BAW6W) from Washington-Dulles Intl, VA (KIAD) to London/Heathrow, UK (EGLL) reported an emergency locator transmitter (ELT) signal near TUSKY at FL370. There were no other aircraft in the vicinity that reported any ELT. The Joint Rescue Coordination Centre (JRCC) Halifax was contacted, and the officials were confident that the signal was an airborne ELT coming from Maine, United States.

January 10, 2019

Incident at 4928N / 04754W

At 1449Z, a Cargolux Airlines Boeing 747-800 (LXVCM/CLX45A) from Covington/Cincinnati International, KY (KCVG) to London/Heathrow, UK (EGLL) executed contingency procedures and descended from FL370 to FL350 without clearance due to severe turbulence. CLX45A was re-cleared and continued at FL350.

January 5, 2019

Incident at 4419N / 06135W

An Air France Boeing 777 200 (AFR689) from Atlanta Intl Airport, GA (KATL) to Charles de Gaulle Airport, France (LFPG) reported severe turbulence at FL350 and climbed to FL370. No impact to operations.

November 29, 2018

Incident at 4845N / 06134W

A KLM Boeing 787-9 (KLM254) from Atlanta Intl Airport, GA (KATL) to Amsterdam Airport, Netherlands (EHAM) reported moderate/severe turbulence at FL370. It requested immediate climb to FL390.

October 7, 2018

Incident at In the vicinity of: 4930N / 06000W

A Norwegian Air International Boeing 737 700 (IBK1762) from New Windsor, NY (KSWF) to Dublin, Ireland (EIDW) reported severe turbulence and descended from FL370 to FL340. No reported damages or injuries. Halifax (HZ) flight information centre (FIC) notified.

August 14, 2018

Incident at CHARLEVOIX QC NDB (ML)

Although it received and read back the clearance to descend to FL350, a Wow Air EHF Airbus A321-211 (TFMOM/WOW2VB) from Keflavik Intl, Iceland (BIKF) to Montreal/Pierre Elliott Trudeau, QC (CYUL) was seen climbing to FL370. The error was detected at FL367. No impact on operations.

August 22, 2018

Incident at 64NM MONTREAL/PIERRE ELLIOTT TRUDEAU INTL QC (CYUL)

An Air Canada Rouge Boeing 767 300 (ROU1966) headed from Toronto/Lester B. Pearson Intl (CYYZ), ON to Berlin (EDDT), Germany reported reacting to a Traffic Alert and Collision Avoidance System (TCAS) Resolution Advisory (RA) while climbing from FL370 to FL372. The other aircraft, an Aviation Starlink Dassault Falcon 2000EX (C-GOHB) headed from Montreal/Pierre-Elliott-Trudeau Intl (CYUL), QC to Hamilton (CYHM), ON was climbing towards FL360 at a high rate of climb. The information had been exchanged.

June 28, 2018

Incident at 4723N / 06952W

At FL370, a United States Air Force Boeing CC-177 Globemaster III (RCH564) from New York Stewart International, NY (KSWF) declared an emergency due to a cabin pressurization issue. The aircraft descended to FL180 and asked if it could return to KSWF. No impact on operations.

April 9, 2018

Incident at 5040N / 06255W

A Thomas Cook Airlines Airbus A330-200 (GCHTZ/TCX2641) on a flight from Las Vegas Int'l, NV (KLAS) to Manchester, UK (EGCC) reported moderate to severe turbulence at FL370.

March 4, 2018

Incident at 4928N / 06612W

A Federal Express Corporation Boeing 777 (N888FD/FDX5392) on a flight from Cologne Bonn Airport, Germany (EDDK) to Memphis Int'l, TN (KMEM) climbing to FL360, was given traffic information on opposite direction aircraft, an Air Transat Airbus A330-342 (C-GKTS/TSC610) on a flight from Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) to Paris/Charles de Gaulle Int'l, France (LFPG) at FL370. FDX5392 advised that they had a traffic alert and collision avoidance system (TCAS) resolution advisory referencing the TSC610. No altitude deviation nor other action taken.

July 29, 2018

Incident at 5640N / 12255W

An Air China Cessna 560 Citation V (CA999) from Fort Nelson, BC (CYYE) to Vancouver Int'l, BC (CYVR) filed FL370, the air traffic controller (ATC) cleared FL370, the pilot read back FL370. ATC observed flight climbing through FL376, and queried pilot. The pilot acknowledged climbing to FL390. ATC gave clearance to FL390. Pilot acknowledged error. No loss of separation or other operational impact on other aircraft.

September 5, 2018

Incident at 50NM TIMMINS ON (YTS) VOR/DME (ELT)

An Air Transat Boeing 737 800 (TSC774) from Vancouver Int'l, BC (CYVR) to Toronto/Lester B. Pearson Int'l, ON (CYYZ) eastbound at FL370 reported an emergency locator transmitter (ELT) signal. Signal strength was strong. It was reported to the Joint Rescue Coordination Centre (JRCC) Trenton. They were tracking a Personnel Locator Broadcast (PLB) on 121.5 west of Highway 144 close to Gogama, Ontario. Gogama is between Timmins and Sudbury. No other reports.

June 6, 2018

Incident at 4751N / 08233W

Update TSB Report #A18O0072: C-GTQF, a Boeing 737-800 aircraft operated by Air Transat, was conducting flight TSC127 from Calgary Intl, AB (CYYC) to Montreal/Pierre Elliott Trudeau, QC (CYUL) with 6 crew members and 136 passengers on board. During cruise flight at FL370 in the vicinity of Marathon, ON (CYSP), the flight crew received a SOURCE OFF indication for the number 1 Integrated Drive Generator (IDG). The flight crew executed the QRH procedures, which included starting the Auxilary Power Unit (APU). However, the APU failed to start and, since only one source of electricity was now available, the flight crew declared an emergency and initiated a diversion to Toronto/Lester B. Pearson Intl, ON (CYYZ). The aircraft descended to FL250, and the flight crew was able to start the APU at that altitude. The emergency was cancelled, and the flight continued to CYUL where it landed without further incident. The operator?s maintenance placed the number 1 IDG on MEL and returned the aircraft to service.
An Air Transat Boeing 737 800 (TSC127) from Calgary, AB (CYYC) to Montreal, QC (CYUL) declared a PAN PAN due to a partial electrical failure and elected to divert to CYYZ. After starting descent, the aircraft was able to restart the Auxiliary Power Unit (APU) and elected to continue to original destination of CYUL. No impact to operations.

February 6, 2018

Incident at GOPUP intersection (ELT)

There were emergency locator transmitter (ELT) reports from aircraft in the vicinity of GD and west, over Lake Huron and in the Minneapolis Air Route Traffic Control Center (ZMP) airspace from approximately 0005Z at FL370. The Trenton Joint Rescue Coordination Centre (JRCC) was advised. There were no more reports of an active emergency locator transmitter (ELT) signal after 0010Z.

January 24, 2018

Incident at 133NM TORONTO / LESTER B. PEARSON INTL ON (CYYZ)

An Air Canada Embraer ERJ 190-100 IGW (ACA271) on a flight from Toronto/Lester B. Pearson, ON (CYYZ) to Winnipeg/James Armstrong Richardson, MB (CYWG) was cleared to FL360 and read back the clearance correctly. The aircraft was observed level at FL370 without authorization and was re-cleared to FL360. No operational impact.

December 26, 2018

Incident at 385NM NNE COZUMEL INTL - COZUMEL (MMCZ)

TSB Report #A18F0303: C-GBIM, an Airbus 319-100 aircraft operated by Air Canada rouge, was conducting flight ROU1779 from Cozumel Intl (MMCZ), Mexico to Toronto/Lester B. Pearson Intl (CYYZ), ON with 5 crew members and 78 passengers on board. Approximately 1 hour after the departure from MMCZ at FL370, a cabin crew member sustained a minor injury, and was unable to continue duties. A doctor travelling as a passenger attended to the crew member, and the flight continued to destination where Emergency Medical Services met the aircraft on arrival. The cabin crew member was admitted to the hospital and was released shortly after.

June 19, 2018

Incident at DISOR

TSB #A18F0133: C-FEAK, a Boeing 737-800 aircraft operated by Sunwing Airlines on behalf of TUI Airways, was conducting flight TOM370 from Leeds/Bradford Intl, UK (EGNM) to Dalaman, Turkey (LTBS). Approximately 3 hours into the flight within the Macedonia FIR at FL370, the flight crew was unable to make FL390 within the cleared time limit and leveled off at FL380. ATC instructed the aircraft to turn right 5 degrees, and on the new heading, TOM370 received a "Climb" RA. TOM370 complied with the RA and advised ATC.

April 2, 2018

Incident at 30NM NE Fort Myers International Airport (KRSW)

TSB Report #A18F0072: C-GTVG, a Boeing 737-800 aircraft operated by Sunwing Airlines, was conducting flight SWG685 from Varadero/Juan Gualberto Gómez Intl, Cuba (MUVR) to Toronto/Lester B. Pearson Intl, ON (CYYZ) with 6 crew members and 181 passengers on board. During an enroute climb from FL350 to FL370 approximately 30 nautical miles North East of Fort Myers/Southwest Florida Intl, FL (KRSW), the flight crew received an engine vibration that exceeded limitations on the number 1 engine. A PAN PAN was declared and the aircraft was levelled off at FL361, to subsequently return to FL350. The flight continued to destination without further incident. The operator?s maintenance confirmed that the indication was false and was caused by a faulty Fan Frame Compressor Case Vibration Sensor. The aircraft was put on MEL until the part was replaced.

February 1, 2018

Incident at 670NM NNW IXTAPA, MEXICO (MMZH)

TSB Report#A18F0042: C-FWGH, a Boeing 737-800 aircraft operated by Sunwing Airlines, was conducting flight SWG481 from Vancouver Intl, BC (CYVR) to Ixtapa/ Zihuatanejo Intl, Mexico (MMZH) with 143 passengers and 7 crew members on board. During cruise flight at FL370 shortly after passing the Delicias (DEL) VOR on Airway UJ27, the flight was cleared to climb to FL390. Approaching FL380, ATC instructed SWG481 to level off at FL380. Shortly thereafter, the flight crew received a TCAS TA, followed by an RA to "Climb". The flight crew complied with the RA and advised ATC. The flight was immediately re-cleared to FL390, and continued to destination without further incident.

September 8, 2018

Incident at 135NM WINNIPEG / JAMES ARMSTRONG RICHARDSON INTL MB (CYWG) (Communication navigation surveillance/air traffic system)

The pilot of an Air Canada Boeing 737-8 (C-FSOI/ACA147) from Toronto/Lester B. Pearson International, ON (CYYZ) to Calgary International, AB (CYYC) requested FL360 via the controller-pilot data link communications (CPDLC). The Winnipeg Area Control Centre (ACC) controller inadvertently entered FL370 into the controller-pilot data link communications (CPDLC). The adjacent speciality queried the controller and ACA147 was re-cleared to FL360. No impact to operations.

August 25, 2018

Incident at 5045n / 10336w

A SkyWest Airlines Canadair RJ 900 Regional Jet (N693CA/SKW4819) from Saskatoon/John G. Diefenbaker Int'l, SK (CYXE) to Minneapolis/St-Paul Int'l, MN (KMSP) level at FL370 reported an indication error and requested descent to 10000 feet to resolve the issue and returned to FL370 approximately 8 minutes later. No impact to operations

June 27, 2018

Incident at 5930n / 08430w

An Air China Boeing 777 300 series (CCA981) from Beijing Capital Int'l, China (ZBAA) to New York/John F. Kennedy Int'l, NY (KJFK) requested FL360 via CPDLC, cleared FL350. CCA981 reported level FL360. The aircraft then cleared FL370. No impact to operations.

May 7, 2018

Incident at 4828N / 06713W

A Norwegian Air Shuttle Boeing 787-8 (NAX7001) from Oslo, Norway (ENGM) to New York, NY (KJFK) reported moderate to severe turbulence at FL390. The aircraft descended to FL360 and experienced the same turbulence down to FL370.

December 3, 2018

Incident at 4649N / 06203W

A Qatar Airways Airbus A350-900 (QTR728) from Philadelphia, PA (KPHL) to Doha, Qatar (OTHH) encountered severe turbulence at FL370 and descended to FL360. No reported damage or injuries.

November 26, 2018

Incident at 4654N / 05845W

An Aer Lingus Airbus A330-200 (EIN1MN) from Toronto/Lester B. Pearson International, ON (CYYZ) to Dublin, Ireland (EIDW) reported severe turbulence at FL370 and climbed to FL380.

November 22, 2018

Incident at 4850N / 03104W

At 0644Z, Aircraft Detection System (ADS) reports indicated that a Virgin Atlantic Airways Boeing 747-400 (GVBIG/VIR16A) from Orlando Intl, FL (KMCO) to Gatwick, UK (EGKK) was descending from FL390. VIR16A reported with Shanwick Oceanic (EGGX) that they descended to FL370 due to severe turbulence.

November 3, 2018

Incident at 4905N / 43490W

A Norwegian Air UK Ltd. Boeing 787-9 (LNLNN/NRS7148) from Boston Intl Airport, MA (KBOS) to Gatwick Airport, UK (EGKK), at 0507Z and at coordinates of N49 05 W434 90, was flying at a flight level of FL390 when the aircraft encountered severe turbulence and descended to FL370 without clearance.

October 25, 2018

Incident at GREATER MONCTON ROMEO LEBLANC INTERNATIONAL AIRPORT

An American Airlines, Inc. Boeing 777 200 (AAL106) from New York-John F. Kennedy (KJFK) to London, GB (EGLL) cleared from FL370 to FL360. An American Airlines, Inc. Boeing 757 200 (AAL278) from New York-John F. Kennedy (KJFK) to Edinburgh, Scotland (EGPH) was directly below at FL350 and received a Collision Avoidance System (TCAS) Resolution Advisory (RA) as a result. Converging flight, a Turkish Airlines Inc. Boeing 777 300 (THY6) from New York-John F. Kennedy (KJFK) to Istanbul Atatürk, Turkey (LTBA) FL340 was vectored as a precaution. No loss of separation.

September 15, 2018

Incident at 4629N / 06542W

An American Airlines, Inc. Airbus A330-300 (N275AY/AAL714) from Philadelphia International, PA (KPHL) to Venice Marco Polo, Italy (LIPZ) was enroute at FL370 when the pilot reported an equipment failure that required them to return to KPHL, due to no longer being "reduced vertical separation minimum" (RVSM). The Boston (BOS) air route traffic control center (ARTCC) was advised and the aircraft left the Moncton Area Control Centre (ACC) airspace at 0016Z.

October 28, 2018

Incident at 4330N / 06600W

A British Airways Boeing 747 400 (BAW190) from Austin Int'l Airport, TX (KAUS) to Heathrow Airport, London (EGLL) at FL370 reported a strong but intermittent emergency locator transmitter (ELT) signal lasting approximately 5 minutes. The Joint Rescue Coordination Centre (JRCC) Halifax was notified.

Incident at 50NM STEPHENVILLE NL (YJT) VOR/DME

An American corporately registered Boeing 737 7HJ (N737AT) from Portsmouth Int'l Airport, NH (KPSM) to Zurich Airport, Switzerland (LSZH) requested, and received, climb from FL370 to FL390. The aircraft was then observed descending from FL387 without clearance. No loss of separation.

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