February 25, 2021

Incident at 30NM N ROBERVAL QC (CYRJ)

During the transfer from Bagotville (YBG), a Panorama Fixed Wings Ltd. Pilatus PC-12/45 (C-FKPX/PNO704) from Alma, QC (CYTF) to La Grande Rivière, QC (CYGL), climbing to FL260, was observed descending from 13,900ft to 12,000ft. When questioned by the air traffic service (ATS) unit, the aircraft advised that it had a pressurization problem and requested a return to CYTF. No emergency declared or assistance requested. No impact on operations.

February 12, 2020

Incident at 4804N / 06907W

Although it had received and read back clearance to climb to FL260, a Sunwing Airlines Inc. Boeing 737-8HX (C-FLSW/SWG380) from Mont-Joli, QC (CYYY) to Quebec/Jean Lesage, QC (CYQB) was seen crossing FL277 while on climb. No impact on operations.

November 19, 2020

Incident at 14NM GORE BAY NDB (YZE)

A strong emergency locator transmitter (ELT) signal was reported by a Government of Canada, Department of National Defence Lockheed CC-130J Hercules (TRKR71) from Trenton, ON (CYTR) to Edmonton, AB (CYEG) at FL260, westbound (W/B). No operational impact.

June 4, 2020

Incident at WINNIPEG CENTRE / ACC DE WINNIPEG (Communication navigation surveillance/air traffic system)

Due to a Canadian Automated Air Traffic System (CAATS) flight data entry error, a Keewatin Air Beech B200 (C-GYSR/KEW208) from Coral Harbour, NU (CYZS) to Churchill, MB (CYYQ) entered the Winnipeg (WG) Area Control Centre (ACC) airspace at FL260, while the Extended Computer Display System (EXCDS) flight data entry (FDE) was indicating FL240. No impact to operations.

February 5, 2020

Incident at 5757N / 11737W

An Air Partners Corp. Cessna 560 Citation Ultra (SDE563) from High Level, AB (CYOJ) to Kelowna, BC (CYLW) departed CYOJ and reported established on the YOJ 200 degree radial. The controller cleared SDE563 to climb to FL280 on the YOJ 200 degree radial. SDE563 was observed on radar at FL222 on the 180 degree radial. The controller stopped the climb of SDE563 at FL230 until the aircraft was past a Can-West Corporate Air Charters Ltd. Beech 200 (CWA925) from Grande Prairie, AB (CYQU) to High Level, AB (CYOJ) that was at FL260. No other impact to operations

June 10, 2019

Incident at 15NM ST-JEAN QC VOR/DME (YJN) (ELT)

The loud and clear signal of an emergency locator transmitter (ELT) was heard between Saint-Jean-sur-Richelieu, QC (YJN) and Sherbrooke, QC (YSC), and between FL260 and FL310. Source unknown. Joint Rescue Coordination Centre (JRCC) Trenton was notified.

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.

June 21, 2019

Incident at BOOTH intersection

A WestJet Boeing 737-700 (WJA171) from Edmonton, AB (CYEG) to Vancouver, BC (CYVR) responded to a traffic alert and collision avoidance system (TCAS) resolution advisory while in descent thought FL260. The aircraft had been cleared to FL250. The traffic, a Jazz de Havilland DHC-8-402 (JZA8489) from Calgary, AB (CYYC) to Vancouver, BC (CYVR) was at FL240. No operational impact.

April 3, 2019

Incident at 5032N / 11528W

A WestJet Boeing 737-700 (WJA116) from Vancouver, BC (CYVR) to Calgary, AB (CYYC), descending into CYYC, collocated with a WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3160) from Kelowna, BC (CYLW) to Calgary, AB (CYYC). WEN3160 was level at FL250, and WJA116 received a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) at 26, 200. WEN3160 had a TCAS warning but no RA. WJA116 did not follow the RA. Traffic was passed to both aircraft prior to the TCAS event. No issues or loss of separation. WJA116 levelled off at FL260.

March 28, 2019


A Kalitta Charters Learjet 35A (N237CK/KFS167) from Edmonton, AB (CYEG) to Spokane, WA (KGEG) took a clearance intended for a KLM Royal Dutch Airlines Airbus A330-300 (PHAKD/KLM217) from Amsterdam, Netherlands (EHAM) to Vancouver, BC (CYVR), and commenced descent. The controller intervened and subsequently cleared KFS167 to FL260. No operational impact.

February 3, 2019


Shortly after departing, a Flair Airlines Ltd. Boeing 737-4Q8 (C-FLHJ/FLE416) from Vancouver Intl, BC (CYVR) to Edmonton Intl, AB (CYEG) reported a rough running engine and requested to return for landing. Emergency response services (ERS) responded and the aircraft landed safely at 2332Z. Minimal operational impact.
Update TSB Report #A19P0019: C-FLHJ, a Boeing 737-400 aircraft operated by Flair Airlines, was conducting flight FLE416 from Vancouver Intl (CYVR), BC to Edmonton Intl (CYEG), AB with 6 crew members and 157 passengers on board. Passing FL260 during the climb to cruising altitude after the departure from CYVR, the number 2 engine (CFM56-3C1) began to surge. The flight crew actioned the QRH checklist, and reduced the thrust on the affected engine, which eliminated the surge. The flight crew elected to return to CYVR, and declared a PAN PAN. The aircraft landed without further incident with ARFF standing by. There were no injuries. The operator’s maintenance conducted a borescope inspection, engine run, and a test flight. However, the condition could not be duplicated. The aircraft was returned to service.

April 23, 2019

Incident at IGSAP

An Air Canada Airbus A320-211 (C-FPWD/ACA415) from Montreal, QC (CYUL) to Toronto/Lester B. Pearson, ON (CYYZ) requested deviation due to weather and was instructed to stop descent at FL260. ACA415 continued to descend to FL240. No operational impact.

January 5, 2019


An American, corporately registered Gulfstream GV (N17ND) from Nnamdi Azikiwe International, Nigeria (DNAA) to Detroit/Wayne County , MI (KDTW) was cleared to descend and maintain FL260 at 1111Z. The flight was handed off to the Cleveland (CLE) Centre at 1124Z. At 1128Z, the Cleveland Centre observed N17ND descending through FL260. The Cleveland Centre contacted West High to confirm what altitude N17ND had been cleared to, and West High confirmed FL260. No operational impact.

June 27, 2019

Incident at 6231N / 04353W

The Gander Area Control Centre (ACC) reported that a U.S. Army Priority Air Transport Beech 200 (PAT993) from Reykjavik–Keflavik, Iceland (BIKF) to Narsarsuaq, Greenland (BGBW) descended without clearance from FL260 to FL150. Separation decreased to less than the required minimum with another U.S. Army Priority Air Transport Beech 200 Reykjavik–Keflavik, Iceland (PAT989) from (BIKF) to Narsarsuaq, Greenland (BGBW). No impact to operations.

November 21, 2019

Incident at 5435N / 11245W

A WestJet Boeing 737-700 (WJA4013) on a flight from Fort McKay/Firebag, AB (CYFI) to Edmonton Intl, AB (CYEG) was descending in to CYEG. Traffic information was passed on a WestJet Encore de Havilland DHC-8-402 (WEN3132) on a flight from Fort McMurray, AB (CYMM) to Edmonton Intl, AB (CYEG) at FL240. WJA4013 was cleared to FL250. WJA4013 reached FL260 and responded to a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) and climbed 300 feet.

July 22, 2019

Incident at 5240N / 11554W

Controller was asked by the pilot of a Westcorp Inc. Cessna 525B (C-GPMW) from Kelowna, BC (CYLW) to Edmonton, AB (CYEG) to confirm that they were cleared to FL260. When checking, the controller noticed that C-GPMW was already in descent but did not have any clearance for lower. The controller then issued a clearance that was safe for their initial descent. No other issues were caused.

March 18, 2019

Incident at 5352N / 11328W

The pilot of a privately registered Cessna 510 from Fort McMurray, AB (CYMM) to Calgary/Springbank, AB (CYBW) reported that one engine was vibrating, and that they were shutting it off, and requesting descent to FL260. No emergency was declared. The aircraft arrived at CYBW without further issue.
Update TSB #A19W0035: A privately operated Cessna 510 Citation Mustang aircraft, was conducting a flight from Fort McMurray (CYMM), AB to Calgary/Springbank (CYBW), AB with 1 pilot and 1 passenger on board. During cruise flight, the aircraft experienced a vibration in the number 2 engine (Pratt and Whitney Canada PW615 FA). The pilot elected to shut the engine down, and secured it. No emergency was declared, the flight continued at a lower altitude and landed at CYBW without further incident.

June 21, 2018


A Glencore Canada Corporation Boeing 737-2S2C (C-GXNR/RAG200) from Rouyn-Noranda, QC (CYUY) to Montreal/Pierre Elliott Trudeau International, QC (CYUL), despite having been authorized and having correctly re-read the FL200, in initial contact with the Montreal area control centre (ACC), the aircraft signaled a climb to FL260. No operational impact.

December 20, 2018

Incident at SESTI intersection

The Toronto Centre (CZY) Controller pointed out an Alaska Airlines Boeing 737 900 (N285AK/ASA171) from Boston Intl Airport, MA (KBOS) to Portland Intl Airport, OR (KPDX) to the Winnipeg Centre (CZW) High Level and then handed off aircraft to Minneapolis Air Route Traffic Control Center (ZMP) with control for climb from FL260. CZW Low sector was not advised. No other aircraft in vicinity. No operational impact.

September 18, 2018


Multiple aircraft at FL260 to FL290 reported a strong emergency locator transmitter (ELT) signal in the vicinity of London, ON (CYXU). Trenton Joint Rescue Coordination Centre (JRCC) was advised.

May 19, 2018

Incident at PEMBA intersection

An Air Georgian Bombardier CL-600-2B19 (C-GKFR/GGN7341) from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Columbus Int'l, OH (KCMH) on the MIXUT5 standard instrument departure (SID) was observed climbing through FL215 after PEMBA. Restriction after PEMBA is not below FL240. Controller queried GGN7341 and cleared the flight to FL260. No impact to operations.

December 23, 2018

Incident at 128NM SSE KPHX - Phoenix Sky Harbour Intl

Updated TSB Report #A18F0297: C-FPDN, an Airbus 320-200 aircraft operated by Air Canada, was conducting flight ACA977 from Los Cabos Intl (MMSD), Mexico to Calgary Intl (CYYC), AB with 5 crew members and 112 passengers on board. The aircraft had been released with the pack number 2 under MEL provisions. During cruise flight at FL340, the flight crew received a PACK 1 + 2 FAULT ECAM message. Pack number 1 was reset successfully, however the flight crew observed that the pack temperature was in the amber range at 245°C. As a precaution, the flight crew decided to divert the aircraft to Phoenix/Sky Harbor Intl (KPHX) AZ, descended initially to FL260, and then to 10 000 feet ASL. At no time did the cabin altitude exceed 7000 feet, and no emergency was declared. The flight landed at KPHX without further incident. The operator’s maintenance is investigating. The same aircraft experienced a similar event the following day (TSB occurrence A18F0298).

December 7, 2018

Incident at 7135N / 08622W

The Edmonton Area Control Centre (ACC) was advised, via relay from another aircraft, that a Private Air Beech B200C (C-GMNM/FSY134) from Arctic Bay, NU (CYAB) to Rankin Inlet, NU (CYRT) had reported a level of FL260. No clearance had been issued. The base of controlled airspace in that area is FL230.

September 20, 2018

Incident at 6023N / 11433W

A First Air Bae Systems RJ85 (C-FLRJ/FAB956) from Yellowknife, NT (CYZF) to Edmonton Intl, AB (CYEG) reported a pressurization problem, descended from FL260 to FL100 and returned to CYZF. No impact to operations.
UPDATE from Aircraft Maintenance & Manufacturing: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Company maintenance replaced the Cabin Pressure Controller located in the cockpit. The aircraft was ground tested with normal operation and returned to service. There have been no further reported incidents. No Service Difficulty Report (SDR) was submitted by the Company as the failure seemed to be due to normal wear on the item.
Update TSB Report # A18W0162: C-FLRJ, a BAE Avro RJ85 aircraft operated by Summit Air, was conducting flight FAB956 from Yellowknife (CYZF), NT to Edmonton Intl (CYEG), AB with 4 crew members and 14 passengers on board. During cruise flight enroute to CYEG, the aircraft experienced a pressurization issue. Ann emergency descent was performed, and the flight crew declared an emergency. The QRH was actioned, and the flight crew elected to return to CYZF where the aircraft landed without further incident.The operator’s maintenance will advise the Transportation Safety Board of their findings.
UPDATE: Correction to AOR 238947-V1 narrative: A Summit Air Ltd. Bae Systems RJ-85 (C-FLRJ/operating as First Air flight FAB956) from Yellowknife, NT (CYZF) to Edmonton Intl, AB (CYEG) reported a pressurization problem, descended from FL260 to FL100 and returned to CYZF. No impact to operations.

June 15, 2018

Incident at 6327N / 13847W

An Air North Charter & Training Ltd. Boeing 737-2X6C (C-GANV/ANT3762) from Fairbanks International, AK (PAFA) to Dawson City, YT (CYDA) came from the Air Navigation Commission (ANC) area control centre (ACC), crossing 141 West at FL330 and needing to descend into CYDA airspace, which is under active military airspace from FL260 to FL490. The controller turned the aircraft to a point of 6327N13847W to give the aircraft descent without infringing on the military airspace. Meanwhile, an Air North Charter & Training Ltd. Aerospatiale ATR 42-300 (C-FVGF/ANT228) from Dawson City, YT (CYDA) to Whitehorse/Erik Nielsen International, YT (CYXY) was climbing to FL210. ANT3762 was cleared out of high level controlled airspace and the coordinates they were given was 10 miles from the protected airspace and therefore separation was not assured.

July 9, 2018

Incident at 2NM SW PIBSO

An Air Canada Airbus A319 (ACA220) from Vancouver, BC (CYVR) to Calgary, AB (CYYC) descending to FL260, 1000ft above a WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3116) from Kamloops, BC (CYKA) to Calgary, AB (CYYC) at FL250, reported a Traffic Alert and Collision Avoidance System (TCAS) Resolution Advisory (RA) descending through FL266. WEN3116 was descending through FL245 at this point. ACA220 stopped descent in response to RA and reported it. No other impact to operations.

April 2, 2018

Incident at 5118N / 11431W

UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. The aircraft was flown to a maintenance base on a Ferry Permit. The Aircraft Maintenance Engineers (AMEs) performed an inspection and determined that low nitrogen pressure in the shock strut was causing insufficient strut extension to activate the weight off wheels switch. The strut seals were reconfigured, the strut was serviced and the aircraft was returned to service.
An Air Partners Cessna Citation 10 (SDE571) from Calgary, AB (CYYC) to Grande Prairie, AB (CYQU) was cleared to FL260 and on climb requested lower at FL180 due to a gear issue. No further assistance required. No impact to operations.

August 25, 2018

Incident at 5101N / 04802W

At 0057Z, a United Airlines boeing 767 400 (N66056/UAL124) from Newark Int'l, NJ (KEWR) to Athens, Greece (LGAV) declared a medical emergency, requesting descent from FL350 to FL260 and diversion to Gander Int'l, NL (CYQX). Flight was cleared as requested and landed CYQX at 0156Z.

March 15, 2018

Incident at 40NM GREENWOOD NS (CYZX)

A Sky Regional Airlines Embraer ERJ 170-200 SU (SKV7553) on a flight from Halifax/Stanfield Int'l, NS (CYHZ) to Toronto/Lester B. Pearson Int'l, ON (CYYZ) encountered moderate to severe turbulence climbing through FL260 for FL340. The aircraft requested descent to FL200. Halifax (HZ) Flight Information Centre (FIC) notified.

December 7, 2017


A Chrono Aviation Pilatus PC-12/45 (C-GICR/NDL876) on a flight from Pourvoirie Mirage, QC (CPM3) to Montreal/St-Hubert, QC (CYHU) was cleared to FL260 and was observed on the radar at FL270. No loss of separation. No impact on operations.

October 15, 2017


En route to Beijing, China (ZBAA), a Boeing 777-300 (CCA880), from Montreal/Pierre-Elliott-Trudeau, QC (CYUL) to Beijing, China (ZBAA) descended from FL290 to FL260 due to severe turbulence. No impact on operations.

November 18, 2017

Incident at 4955N / 12024W (ATS operating irregularity)

Less than the required separation of 1000ft or 5NM existed between an Air Canada Boeing 777-333ER (C-FIUL/ACA121) on a flight from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) in descent from FL360 to FL260 and an Air Canada Airbus A320-211 (C-FDSU/ACA223) on a flight from Calgary, AB (CYYC) to Vancouver, BC (CYVR) at FL340 while sequencing the aircraft toward the VITEV fix for arrival to CYVR.

September 11, 2017


An American corporately registered Raytheon 390 Premier 1 (N462CB) on a flight from Vancouver, BC (CYVR) to Fort Nelson, BC (CYYE) reported at FL260 and was handed off from Edmonton (EG) Centre for area navigation (RNAV) Runway 22 approach at CYYE. The aircraft did not respond to any calls from Fort Nelson flight service station (FSS) or EG Centre from that point onward, and landed at CYYE. The pilot's estimated time of arrival (ETA) was 2159Z, and the actual time of arrival was 2205Z. The pilot advised that they were on the wrong frequency.

June 20, 2017

Incident at MENBO intersection

A Horizon Air Industries Embraer ERJ 170-200 LR (QXE2620) on a flight from Seattle/Tacoma, WA (KSEA) to Calgary, AB (CYYC) reported in with the Edmonton Centre crossing MENBO and descending through FL260. The coordinated altitude with Vancouver, BC (VR) area control centre (ACC) was FL290. No impact to operations.

September 7, 2017


Multiple emergency locator transmitter (ELT) reports were received in the vicinity of Peterborough, ON (CYPQ) from an aircraft westbound at FL200 to FL260. Joint Rescue Coordination Centre (JRCC) Trenton were notified at 0315Z. JRCC Trenton located the aircraft tied to a dock. No distress. Search and Rescue (SAR) personnel taking required action to deactivate the ELT.
Update: Joint Rescue Coordination Centre (JRCC) Trenton confirmed the aircraft involved was a privately registered amateur-built Wagaero Super-Cuby.

June 24, 2017

Incident at DERLO intersection

An American Airlines Airbus A319 (AAL2654) on a flight from Los Angeles, CA (KLAX) to Toronto/Lester B. Pearson, ON (CYYZ) northeast bound was descending to FL240 and there was less than the required separation when passing an American Airlines Boeing 757-200 (AAL55) on a flight from Bangor, ME (KBGR) to Chicago/O'Hare, IL (KORD) who was westbound at FL260. No operational impact.

May 11, 2017

Incident at In the vicinity of: TORONTO / LESTER B. PEARSON INTL ON (CYY

An Air Canada Embraer E190 (ACA452) from Toronto, ON (CYYZ) to Ottawa, ON (CYOW) was eastbound and instructed to climb to FL250; read-back was correct. A Department of National Defence McDonnell Douglas F-18 (HRNT01) from Bagotville, QC (CYBG) to Cleveland, OH (KCLE) was westbound and level at FL260. ACA452 reported traffic alert and collision avoidance system (TCAS) resolution advisory (RA). No operational impact.

April 17, 2017


An Emirates Airbus A380-800 (UAE241), from Dubai, United Arab Emirates (OMDB) to Toronto/Lester B. Pearson, ON (CYYZ) declared an emergency due to a possible blown tire. Emergency equipment was on standby. The aircraft landed Runway 06L at 2035Z without incident. No operational impact.
UPDATE: TSB Report#A17O0096: A6-EUL, an Airbus 380-800 aircraft operated by Emirates Airlines, was conducting flight UAE241 from Dubai Intl, UAE (OMDB) to Toronto/Lester B. Pearson Intl, ON (CYYZ). After the departure from OMDB when passing through FL260, the flight crew heard a dull thump and received an ECAM warning "WHEEL TIRE PRESSURE LOW". The flight crew determined that main wheel tire number 10 had zero pressure and after consulting with the operator?s Maintenance Control Centre (MCC), elected to continue on to CYYZ. During the approach into CYYZ, the flight crew advised ATC of the situation and requested ARFF on standby for inspection after the landing. The aircraft landed on Runway 06L and exited at the end where ARFF and maintenance personnel inspected the aircraft. Maintenance confirmed a burst tire and some damage to the wheel well structure. The flight crew elected to taxi the aircraft to the remote stand. The operator?s maintenance replaced the tire and observed some stiffener damage on the wheel well bulkhead vertical panel. The manufacturer was consulted and the aircraft was released for service under a Design Deviation Authorization for one flight cycle. The tire manufacturer is investigating the cause of the burst.

March 25, 2017


After leveling off at FL260, a Republic Airlines Inc. Embraer EMB-175 (N724XX/RPA3601) from Ottawa/MacDonald-Cartier, ON (CYOW) to Newark, NJ (KEWR) descended to FL256 in response to a traffic alert and collision avoidance system (TCAS) warning due to a United Parcel Service Co. Airbus A300B4 605R (N146UP/UPS474) from Louisville, KY (KSDF) to Montreal/Mirabel, QC (CYMX) who was authorized to descend to FL270. Traffic was passed to both aircraft. No impact on operations.

March 4, 2017

Incident at 25 NM SSW TORONTO / LESTER B. PEARSON INTL ON (CYYZ) (Communication navigation surveillance/air traffic system)

Separation was not assured when an Air Georgian Bombardier CL-600-2B19 (GGN7341) from Toronto, ON (CYYZ) to Columbus, OH (KCMH) was cleared to FL260 without prior coordination.

January 4, 2017


An Air Georgian Canadair CL-600-2B19 (GGN7337) from Toronto, ON (CYYZ) to Columbus, OH (KCMH) was instructed to climb to FL260. Readback was correct. GGN7337 was observed climbing above FL260 without authorization. Separation was not jeopardized. No operational impact.

October 2, 2017

Incident at 5NM Buffalo International Airport NY (KBUF) (Weather balloon, meteor, rocket, CIRVIS/UFO)

An Air Canada Airbus A319 (ACA701) on a flight from New York/La Guardia, NY (KLGA) to Toronto/Lester B. Pearson, ON (CYYZ) at FL260 in the vicinity of Buffalo, NY (KBUF) reported passing a white weather balloon with a small box trailing below. No further reports. No operational impact.

August 6, 2017

Incident at 6028N / 07904W (Communication navigation surveillance/air traffic system)

A Kudlik Aviation Pilatus PC-12/47 (KUK761) from Puvirnituq, QC (CYPX) to Rankin Inlet, NU (CYRT) entered the Edmonton Area Control Centre (ACC) area of responsibility at FL260 without flight data having been transferred from Winnipeg ACC to Edmonton ACC. No aircraft in the vicinity and no impact to operations.

March 18, 2017

Incident at In the vicinity of: RANKIN INLET NU (CYRT)

An Air Nunavut Beech 200 (BFF202) from Coral Harbour, NU (CYZS) to Rankin Inlet, NU (CYRT) descended from FL300 to FL260 without air traffic control (ATC) instruction. No impact on operation.

February 17, 2017

Incident at In the vicinity of: WINNIPEG / JAMES ARMSTRONG RICHARDSON IN

A 4197802 Manitoba Ltd. Socata TBM 700 (C-GWVS) from St. Andrews, MB (CYAV) to Regina, SK (CYQR) was provided with a clearance to FL260 and was subsequently observed climbing through FL268. The aircraft was queried, apologized and returned to FL260. No impact to operations.

October 1, 2017


Moncton, NB (CZQM) Area Control Centre (ACC) was advised of a McDonnell Douglas F-15 Eagle commencing a fuel dump at 1134Z, at FL260, beginning 22 NM S of Charlottetown, PE (CYYG) enroute to Greenwood, NS (CYZX) for approximately 10 minutes. Fuel dump was broadcasted at 1136Z. CZQM advised fuel dump was completed with a duration of approximately 1 minute. Fuel dump broadcasted as ended at 1152Z.

December 15, 2017


A Jazz Bombardier CL-600-2D24 (C-GJZV/ JZA8635) from Halifax, NS (CYHZ) to Ottawa, ON (CYOW) reported a 'gear breakaway' indication and requested to level at FL260 to troubleshoot. The aircraft then reported a faulty sensor only and continued on to destination. No assistance required, no impact to operation.

June 8, 2017

Incident at 5404N / 03729W

A United States Air Force Lockheed C-130 (Hercules) (RCH554) on a flight from Ramstein Air Base, Germany (ETAR) to St. John's, NL (CYYT) advised one engine was out at FL260 and requested lower. The aircraft was cleared to FL230. No emergency declared. No operational impact.

November 23, 2016

Incident at 6NM NE EPSAT Intersection

A US Army, Priority Air Transport Beech 200 (PAT738) from Toronto, ON (CYYZ) to Goose Bay, NL (CYYR) was observed diverting from EPSAT towards AGLUK rather than EPSAT VERTI AGLUK ANCER ALKOB YYR, the route known by Air Traffic Control (ATC). When questioned about the situation, PAT738 confirmed the next point after EPSAT was AGLUK. PAT738 had received and readback Direct EPSAT enroute previously. Impact on operations: Air Canada (ACA409) had to stay at FL260 while directing PAT738 to AGLUK.

August 31, 2016


UPDATE TSB #A16O0133: A de Havilland DHC-8-402 aircraft operated by Jazz as flight JZA933 from Greater Moncton, NB (CYQM) to Toronto/LBPIA, ON (CYYZ), was westbound in cruise flight at FL240 and being followed by a Boeing 737-700 operated by WestJet as flight WJA357 from Ottawa/MacDonald-Cartier, ON (CYOW) to CYYZ. WJA357 was in the climb through FL240, cleared to FL260, and was faster than JZA933. The separation reduced to 3.2 nautical miles, where 5 nautical miles was required.
A Jazz de Havilland DHC-8-402 (JZA8933) from Moncton, NB (CYQM) to Toronto, ON (CYYZ) was westbound at FL240 and a WestJet Boeing 737 700 (WJA357) from Ottawa, ON (CYOW) to CYYZ in trail and faster was climbing to FL260. Less than the required in trail spacing was maintained.