July 9, 2022

Incident at ÎLES-DE-LA-MADELEINE QC (CYGR)

A Jazz de Havilland DHC-8-402 (C-GGOI/JZA7925) from Îles-de-la-Madeleine, QC (CYGR) to Montreal/Pierre Elliott Trudeau, QC (CYUL) checked in with Moncton (QM) Area control centre (ACC) climbing to FL240, clearance was issued to climb to 160.

January 8, 2022

Incident at NOVID intersection

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3427) from Quebec/Jean Lesage, QC (CYQB) to Toronto/Lester B. Pearson, ON (CYYZ) reported hearing a strong emergency locator transmitter (ELT) signal at FL240, for a duration of 3 minutes. The Joint Rescue Coordination Centre (JRCC) Trenton was notified. No impact on operations.

August 11, 2022

Incident at 5637N / 12450W (ATS operating irregularity)

A North Cariboo Flying Service Ltd. Beech B200 (NCB580) on a flight from Fort Ware, BC (CAJ9) to Prince George, BC (CYXS) was cleared to climb to FL270. A Central Mountain Air Ltd. Beech 1900D (GLR9010) on a flight from Prince George, BC (CYXS) to Fort Ware, BC (CAJ9) was cleared to FL240. Separation was not assured when NCB580 climbed through the altitude of GLR9010. No impact to the operation.

July 18, 2022

Incident at 21NM PRINCETON BC (CYDC)

A Martini Aviation Ltd. Embraer EMB-505 (C-GEMB) from Kelowna, BC (CYLW) to Fort Langley, BC (CBQ2) encountered moderate to severe turbulence at FL240. The aircraft lost approximately 500 feet and returned to FL240.

June 15, 2022

Incident at Parksville, BC

A Jazz de Havilland DHC-8-402 (JZA8399) from Vancouver, BC (CYVR) to Sandspit, BC (CYZP) reported an emergency locator transmitter (ELT) signal at FL240 over Powell River, at POWOL intersection. The joint rescue coordination centre (JRCC) Victoria was advised. JRCC updated that it was a helicopter, an Ascent Helicopters Ltd. Bell 206L-4 (C-GWFW), that was on the ground at Parksville.

April 30, 2022

Incident at 5010N / 12251W

A Jazz de Havilland DHC-8-402 (JZA8371) from Vancouver, BC (CYVR) to Fort St. John, BC (CYXJ), instructed to climb to FL240, climbed to FL250. The aircraft was descended to FL240. No operational impact.

August 10, 2022

Incident at 115NM THUNDER BAY ON (CYQT)

A Canadian North Boeing 737-400 (AKT6372) from Toronto/Lester B. Pearson, ON (CYYZ) to Thunder Bay, ON (CYQT) was cleared to descend to FL250 and was passed traffic ahead at FL240. The aircraft was subsequently observed to descend below FL250 in the vicinity of the traffic and, when queried, climbed to FL250. No impact to operations.

August 8, 2022

Incident at In the vicinity of: LONDON ON (CYXU) (Aerodrome, runway or taxiway shutdown)

A Chartright Air Inc. Beech 1900D (C-GORA/HRT326) from Hamilton, ON (CYHM) to Atlanta, GA (KATL) declared an emergency due to a trim issue and diverted to London, ON (CYXU). Requested emergency equipment. The aircraft landed safely at 1509Z. One aircraft was delayed in a hold for 5 minutes.
UPDATE: TSB Report #A22F0254: C-GORA, a Chartright Air B1900D (BE02) was conducting flight HRT326 from John C. Munro/Hamilton International Airport (CYHM), ON, to Hartsfield-Jackson Atlanta International Airport (KATL), GA, when approximately 20 minutes after departure the aircraft levelled off at FL240. The electric trim failed and the crew cut out the system and reverted to manual trim. When they attempted to trim manually the trim wheel would not move. The aircraft was still trimmed nose up and the PF had to apply moderate control force to hold the aircraft level. The crew declared an emergency and diverted to London International Airport (CYXU), ON. The flight landed at CYXU without further incident. Control force in the flare, given the position that the trim was stuck in, was close to normal and there were no issues on landing.

August 6, 2022

Incident at 4742N / 08712W

An Air Canada Airbus BD-500-1A11 (C-GMYU/ACA397) from Toronto/Lester B. Pearson, ON (CYYZ) to Thunder Bay, ON (CYQT) was cleared to descend from FL250 to 5000ft with a WestJet Encore de Havilland DHC-8-402 (C-GENK/WEN3216) from Toronto/Lester B. Pearson, ON (CYYZ) to Thunder Bay, ON (CYQT) at FL240, and passed with less than the required lateral spacing.

July 16, 2022

Incident at SAULT STE. MARIE ON (CYAM)

A Jazz de Havilland DHC-8-402 (JZA8433) from Toronto/Lester B. Pearson, ON (CYYZ) to Timmins/Victor M. Power, ON (CYTS) reported a strong emergency locator transmitter (ELT) signal at FL240. No further reports. The Joint Rescue Coordination Centre (JRCC) Trenton was notified

May 18, 2022

Incident at MIGLO intersection

An Air Canada Airbus BD-500-1A11 (C-GJXW/ACA440) from Toronto/Lester B. Pearson, ON (CYYZ) to Ottawa/MacDonald-Cartier, ON (CYYZ) was instructed to descend to FL240. An Air Canada Airbus BD-500-1A11 (C-GROV/ACA400) from Toronto/Lester B. Pearson, ON (CYYZ) to Montreal/Pierre Elliott Trudeau, QC (CYUL) acknowledged the instruction with the incorrect aircraft identification (ACID) just before being handed over to the Montreal (YUL) controller. The Toronto (YZ) controller contacted the YUL controller on the hotline to advise. No impact to operations.

January 18, 2022

Incident at Miami, FL (KMIA)

TSB Report #A22F0037: C-GITP, an Air Canada Rouge Airbus A319 conducting flight RV1650 from Montréal-Pierre Elliott Trudeau International Airport (CYUL), QC to Miami International Airport (KMIA), FL. While descending to FL240 on the SLFSH1 RNAV STAR, approximately 20NM north of waypoint CIKEN, ATC advised RV1650 of opposite direction traffic instructed to level-off at FL230. The rate of climb of the opposite direction traffic triggered a TCAS RA (resolution advisory) CLIMB command. The flight crew followed the TCAS as instructed. After climbing approximately 200 feet, RV1650 received the CLEAR OF CONFLICT advisory and descended back to their cleared altitude. ATC was advised. The aircraft continued to destination without further incident.

July 20, 2022

Incident at 5017N / 09733W (Communication navigation surveillance/air traffic system)

An American, corporately registered Raytheon B200 (N214GB) from Winnipeg/James Armstrong Richardson, MB (CYWG) to Flin Flon, MB (CYFO) checked in with the West Low (WL) controller through 10,200 feet climbing to FL230. The WL controller issued FL260 instead of the intended and flight plan (FP) altitude of FL240. N214GB read back FL260 and continued their climb. The WL controller observed N214GB climbing through FL250 and questioned the aircraft. The controller believed they had cleared N214GB to FL240, and the strip still showed FL240. N214GB was cleared again to FL260. No impact to operations.

June 26, 2022

Incident at 81NM REGINA INTL SK (CYQR)

An Air Canada Airbus A320 (ACA1115) from Toronto/Lester B. Pearson, ON (CYYZ) to Regina, SK (CYQR) was cleared to descend to FL250 and, subsequently, was provided traffic at FL240 with an option to wait 4 or 5 minutes for lower, or turn south to shorten the wait for further clearance. ACA1115 elected to turn left 20 degrees and subsequently received a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) at FL255 and levelled. Once past the traffic, ACA1115 was cleared to lower. No impact to operations.

May 6, 2022

Incident at 10NM N WHITECOURT AB (CYZU)

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3485) from Edmonton, AB (CYEG) to Grande Prairie, AB (CYQU) was cleared to FL240 and was observed climbing through FL246. The controller queried the pilot, who returned to FL240. No impact to operations.

April 25, 2022

Incident at 5241N / 11500W

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3313) from Edmonton, AB (CYEG) to Kelowna, BC (CYLW) reported a blue laser strike at FL240. The Royal Canadian Mounted Police (RCMP) unit was advised. No impact to operations.

October 10, 2022

Incident at 4705N / 05907W

A Westjet Encore Ltd. de Havilland DHC-8-402 (WEN3501) from Gander, NL (CYQX) to Halifax/Stanfield, NS (CYHZ) was observed climbing to FL250 when clearance to FL240 was issued. No traffic. No impact on operations.

June 15, 2022

Incident at FREDERICTON INTERNATIONAL AIRPORT (Communication navigation surveillance/air traffic system)

A Porter Airlines de Havilland DHC-8-402 (POE248) from Fredericton, NB (CYFC) to Ottawa/MacDonald-Cartier, ON (CYOW) departed from Runway 09 at CYFC. The controller gave an instruction of "right turn [to] heading 340 and climb to FL240". The controller meant to say "left turn". The error was caught before the aircraft infringed on CYR724 airspace.

April 28, 2022

Incident at 41NM GREATER MONCTON ROMEO LEBLANC INTERNATIONAL AIRPORT, NB (CYQM)

A Provincial Airlines de Havilland DHC-8-402 (C-FPQI/PVL923) from Moncton/Romeo LeBlanc, NB (CYQM) to Ottawa/Macdonald-Cartier, ON (CYOW) was cleared to FL240. Mode C showed FL244.

February 28, 2022

Incident at GANDER CENTRE / ACC DE GANDER

A United States Marine Corps Hawker Siddeley AV-8B Harrier II (MAZDA 42-45) from Marine Corps Air Station Cherry Point, NC (KNKT) to Keflavik, Iceland (BIKF) descended from FL250B270 to FL240, turned, and proceeded direct to Kangerlussuaq, Greenland (BGSF) without Air Traffic Control (ATC) clearance.

October 26, 2021

Incident at 55NM LA GRANDE RIVIÈRE QC (CYGL)

A Hydro-Québec de Havilland DHC-8-402 (C-GHQP/HYD145) from La Grande-Rivière, QC (CYGL) to Rouyn-Noranda, QC (CYUY) was cleared to FL240. Despite exact read-back, HYD145 climbed to FL250.

October 12, 2021

Incident at 4822N / 06902W

An RCMP Air Services Branch Pilatus PC-12/47E (C-FGMQ/SST107) from Sept-Îles, QC (CYZV) to Québec/Jean-Lesage, QC (CYQB), to FL240, requested a descent due to a loss of cabin pressure. An emergency was not declared.

December 24, 2021

Incident at 30NM W CRANBROOK / CANADIAN ROCKIES INTL BC (CYXC)

A Jazz de Havilland DHC-8-402 (C-GGOY/JZA8297) from Cranbrook/Canadian Rockies, BC (CYXC) to Vancouver, BC (CYVR) received clearance from CYXC to CYVR at FL240. Approximately 30NM west of CYXC, and nearing FL240, the aircraft reported a pressurization issue and requested the lowest altitude. The aircraft was cleared to descend to FL130. Through FL150, the aircraft requested and received a block altitude of 170B190 and continued to CYVR. No operational impact.

September 28, 2021

Incident at 37NM S SE TERRACE BC (CYXT)

While on climb out of Terrace, BC (CYXT) to FL240, the flight crew of a WestJet Encore de Havilland DHC-8-402 (C-GJWE/WEN3448) from Terrace, BC (CYXT) to Vancouver, BC (CYVR) advised that they were in an emergency situation, executed a rapid descent and coordinated a return to CYXT.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. In climb, a Master Caution illumination was received for "FLT COMPT DUCT HOT" and "CABIN DUCT HOT". The compressor discharge overtemperature switch was found to be at fault and changed. Service Difficulty Report (SDR) no. 202100929014 was subsequently filed.
UPDATE: TSB Report #A21P0105: C-GJWE, a WestJet Encore de Havilland DHC-8-402 operating as WEN3448, was conducting a flight from Terrace, BC (CYXT) to Vancouver, BC (CYVR) with 4 flight crew and 10 passengers on board. During the initial climb out of CYXT, the hot duct warning for both the flight and the cabin compartments illuminated The pilots referred to the Quick Reference Handbook (QRH) and initiated the procedures for a single hot duct warning while the aircraft continued to climb. At FL240, the flight crew received a master warning for cabin altitude. The pilots declared an emergency and executed a rapid descent. The flight and cabin crews initiated their respective depressurization procedures, including donning oxygen masks. The aircraft returned to CYXT and landed safely, with no reported injuries and no damage to the aircraft. Maintenance replaced the compressor discharge overtemperature switch, and operational checks were carried out successfully. The aircraft blow out panels were inspected, with no faults found. The operator filed an SDR for the overtemperature switch and the aircraft was returned to service. The QRH did not contain a procedure for hot duct warnings in both the flight and cabin compartments.

April 30, 2021

Incident at In the vicinity of: PENTICTON BC (CYYF)

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3280) from Penticton, BC (CYYF) to Calgary, AB (CYYC) picked up a faint emergency locator transmitter (ELT) signal during its climb out of CYYF, from FL220 to FL240. The Joint Rescue Coordination Centre (JRCC) Victoria was notified and it advised that the ELT was coming from an aircraft on the field in Kelowna, BC (CYLW). No operational impact.

February 9, 2021

Incident at 83NM ESE PRINCE GEORGE BC (CYXS)

A Central Mountain Air Ltd. Dornier 328-100 (C-FDYN/GLR8438) from Kelowna, BC (CYLW) to Prince George, BC (CYXS) declared PAN PAN due to an oil indication. The aircraft continued to its destination, where it landed without incident at 1730Z. No operational impact. (Information from Aviation Incident Report (AIRA) incorporated into narrative summary)
UPDATE: TSB Report #A21P0009: C-FDYN, a Central Mountain Air Dornier DO-328 aircraft, was conducting flight GLR8438 from Kelowna, BC (CYLW) to Prince George, BC (CYXS) with 3 crew members and 11 passengers on board. During cruise flight at FL240, the flight crew noticed indications of oil pressure fluctuations on the right engine (Pratt & Whitney Canada PW119B). ATC advised the flight crew that the flight would be required to hold prior to commencing the approach at CYXS due to traffic. The flight crew declared a PAN PAN and landed as soon as practical, without further incident. Subsequent maintenance actions revealed the engines no. 3 and no. 4 bearing labyrinth seals were leaking air and pressurizing the bearing cavity, to the point where oil had been pushed out into the intercompressor turbine case and overboard, into both the cowling and the exhaust burn-off ducts. The operator has coordinated with the engine manufacturer and has indicated that the engine requires replacement.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. It was noted that the oil level was a little low upon the aircrafts landing in Prince George, BC (CYXS). There was also some oil present in the cowling, suggesting a potential leak at first evaluation. The oil was cleaned up and ground runs were performed, and the oil fluctuations did not reappear. The oil pressure and temperature were steady at all power settings. After shut down, it was noticed that oil was dripping from the cowling collector drain ports, but there was no evidence of further leaks. Oil dripping from the drains is not uncommon, after noting previous oil in the cowling area, as this is the common dump point for all scavenge or ported oil. Oil levels were still maintained at required levels. The aircraft was ground run for another 30 minutes, with no fluctuation in oil pressure. The aircraft was ferried back to Calgary, empty, for further analysis. Analysis result from Calgary, after multiple runs and tests, is currently pointing towards the internal #3 or #4 bearing labyrinth seal leaking air, and thus pressurizing the bearing cavity to the point of pushing oil out into the inter-compressor turbine case and overboard, into both the cowling and the exhaust burn-off duct. This is an internal fault of the engine that, although is not typical, is something that has been present in many turbo-prop engines in the past. Pratt & Whitney have been notified of all the tests and runs, and agree that the inner bearing seal has most likely failed and will require the replacement of the engine.

August 11, 2021

Incident at 10NM KASHECHEWAN ON (CZKE) (Communication navigation surveillance/air traffic system)

Separation was not assured between an Air Bravo Corp. Pilatus PC-12/45 (C-FKPI/AB1250) from Kashechewan, ON (CZKE) to Thunder Bay, ON (CYQT) and a Chrono Aviation Pilatus PC-12/45 (C-FGFL/NDL654) from Toronto/Lester B. Pearson, ON (CYYZ) to Attawapiskat, ON (CYAT) when AB1250 was cleared to climb to FL240 after departing CZKE and NDL654 was in descent to CYAT from FL270.

July 2, 2021

Incident at 25NM TORONTO / LESTER B. PEARSON INTL ON (CYYZ)

A Jazz de Havilland DHC-8-402 (C-GGAH/JZA8289) from Toronto/Lester B. Pearson, ON (CYYZ) to Timmins/Victor M. Power, ON (CYTS) reported a strong emergency locator transmitter (ELT) signal at FL140, and again at FL240. Joint Rescue Coordination Centre (JRCC) Trenton advised. No operational impact.

June 19, 2021

Incident at UDMUG intersection

A Bombardier Inc. Bombardier BD-700-1A10 (BBA09) from Toronto/Downsview, ON (CYZD) to Toronto/Downsview, ON (CYZB) was cleared to FL240 but continued its descent to FL200 without air traffic control (ATC) clearance. No operational impact.

June 1, 2021

Incident at 25NM N TRENTON ON (CYTR)

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.

May 31, 2021

Incident at OTTAWA / MACDONALD-CARTIER INTL ON (CYOW)

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.

May 14, 2021

Incident at IROQUOIS FALLS ON (CNE4)

A Thunder Airlines Limited Mitsubishi MU-2B-60 (C-GGDC/THU880) from Sudbury, ON (CYSB) to Moosonee, ON (CYMO) reported a continuous, strong emergency locator transmitter (ELT) signal while passing overhead Iroquois Falls, ON (CNE4) at FL240. The Joint Rescue Coordination Centre (JRCC) Trenton was advised. No operational impact.

March 26, 2021

Incident at 5203N / 08933W

A Wasaya Airways Pilatus PC-12/45 (C-GZGZ/WSG511) from Kingfisher Lake, ON (CNM5) to Thunder Bay, ON (CYQT) was cleared to, and read back, FL240, but was observed by the area control centre (ACC) controller levelling at FL250. WSG511 descended immediately to FL240. No impact on operations.

March 9, 2021

Incident at NUBER intersection

A NovaJet Bombardier CL-600-2B16 (C-FTJB/NOJ61) from Battle Creek/W.K. Kellogg, MI (KBTL) to Toronto/Lester B. Pearson, ON (CYYZ) was given a descent to FL240. When checking in with the Kitchener/Waterloo (YKF) sector, the aircraft indicated it was descending to FL140. At the time, NOJ61 was still above FL240. The YKF controller advised NOJ61 of its mistake and re-cleared the aircraft. No loss of separation. No operational impact.

February 22, 2021

Incident at 105NM RED LAKE ON VOR/DME (YRL)

A North Star Air Pilatus PC-12/45 (C-GVKC/BF708) from Sachigo Lake, ON (CZPB) to Sioux Lookout, ON (CYXL) was cleared to FL230 and read back the clearance correctly. The controller subsequently observed the aircraft at FL240 and instructed the aircraft to descend to FL230. No impact to operations.

January 24, 2021

Incident at In the vicinity of: WIARTON ON

There were multiple reports of an emergency locator transmitter (ELT) signal, from FL240 to FL290, between Wiarton, ON, and St. Catharines, ON. In addition, there were several low level ELT reports at A030, near Bobcaygeon, ON. The Joint Rescue Coordination Centre (JRCC) Trenton was advised.

December 13, 2021

Incident at 5310N / 11401W

An Air Canada Boeing 737 MAX 8 (ACA241) from Edmonton, AB (CYEG) to Vancouver, BC (CYVR) was instructed to climb to FL210 by the Edmonton terminal controller. At 2228Z, ACA241, at 11,000 feet, checked in with the Edmonton en route controller and advised that it was climbing to FL240. Air Traffic Control (ATC) subsequently cleared ACA241 to climb to FL240. No impact to the operation.

November 19, 2021

Incident at 70NM REGINA INTL SK (CYQR)

An American, corporately registered de Havilland DHC-8-311 (N839CA) from Regina, SK (CYQR) to Calgary, AB (CYYC) declared an emergency and requested an immediate descent from FL240 due to a loss of pressurization. The aircraft descended to 8000 feet and, upon levelling, advised that they were no longer declaring an emergency and further advised they would be carrying on to their destination. No operational impact.

October 29, 2021

Incident at 40NM BAKER LAKE NU (CYBK)

A Keewatin Air Beech B200 (KEW208) from Churchill, MB (CYYQ) to Baker Lake, NU (CYBK), inbound to CYBK and level at FL240, reported a traffic alert and collision avoidance system (TCAS) traffic advisory (T/A). Traffic in the vicinity, outbound from CYBK, was a Chrono Aviation Inc. Pilatus PC-12 (NDL987) from Baker Lake, NU (CYBK) to Churchill, MB (CYYQ) that was climbing to FL230. Traffic was passed to both aircraft. No impact on operations.

August 2, 2021

Incident at 30NM S IGVEP intersection

A Babin Air Ltd. Piper PA-42-1000 (C-GZPU) from Glacier Park, MT (KGPI) to Calgary, AB (CYYC) was in descent when its Mode C readout indicated "FL255 and climbing". The pilot verified that their altitude was FL240 and descending. No impact to operations.

June 18, 2021

Incident at 5152N / 11342W

An Air Canada Airbus A320 (ACA399) from Calgary, AB (CYYC) to Fort McMurray, AB (CYMM) was cleared to FL240 and was observed climbing through FL241. The controller intervened and ACA399 was subsequently cleared to FL380.
UPDATE: Duplicate AOR 274798-V1: An Air Canada Airbus A320 (ACA399) from Calgary, AB (CYYC) to Fort McMurray, AB (CYMM) was instructed to climb to FL240. At 0001Z, air traffic control (ATC) observed ACA399 climbing above FL240 (coordinates listed as 5151N / 11338W). ATC subsequently instructed ACA399 to climb to FL280. No impact to operations. (Duplicate AOR 274798-V1 / CADORS 2021C2290 deleted after information merge)

April 23, 2021

Incident at 150NM NE YELLOWKNIFE NT (CYZF) (Aerodrome, runway or taxiway shutdown)

At approximately 2345Z, the Edmonton area control centre (ACC) advised that a Nolinor Aviation Boeing 737-200 (NRL969) from Goose Lake, NU (CGS2) to Yellowknife, NT (CYZF) was inbound and had declared an emergency due to an engine fire indication for the number 2 engine. At 0011Z, NRL969 landed on Runway 34, and was then inspected by the Aircraft Rescue and Fire Fighting (ARFF) unit. It was determined that there was no engine fire. NRL969 then taxied back to its base. One arriving aircraft was assigned to Runway 28 instead of Runway 34. No other impact to operations.
UPDATE: TSB Report #A21W0021: C-GNLK, a Nolinor Aviation Boeing 737-200 was conducting flight NRL969 from Goose Lake, NU (CGS2) to Yellowknife, NT (CYZF) with 3 crew members and 0 passengers on board. Approximately 150NM NE of CYZF, the flight crew received a brief #2 engine fire indication. The crew initiated a descent to FL240 in anticipation of shutting down the #2 engine. Once level at FL240, the crew received the #2 engine fire indication continuously, and executed the appropriate checklist, shutting down the #2 engine (Pratt and Whitney JT8D-17). The flight crew then declared a "PAN PAN" with ATC. The flight continued to its intended destination (CYZF), where an uneventful landing was completed. ARFF met the aircraft and an external inspection was completed. No evidence of fire was found, and the aircraft subsequently taxied to the company facility. Company maintenance inspected the aircraft and determined there had been an erroneous fire indication due to a fault with a fire sensor loop on the #2 engine. The aircraft was repaired and subsequently returned to service.

April 14, 2021

Incident at MODET intersection (Communication navigation surveillance/air traffic system)

A United States Air Force Air Mobility Command Lockheed C-130 (Hercules)(RCH203) from Thule Air Base, Greenland (BGTL) to Glacier Park, MT (KGPI) entered the North Low airspace at FL240 without controller knowledge due to the Canadian Automated Air Traffic System (CAATS) being inadvertently set to "No IFR Clearance". There were no other aircraft in the vicinity at the time and no loss of separation. No impact to operations.

February 18, 2021

Incident at 43NM IQALUIT NU (CYFB)

Despite having been cleared for, and correctly re-reading, FL240, a Keewatin Air Pilatus PC-12 (KEW400), on a MEDEVAC flight from Iqaluit, NU (CYFB) to Igloolik, NU (CYGT), was observed climbing to FL250 before the intervention of the air traffic controller (ATC). The deviation had no impact.

April 25, 2020

Incident at 10NM MONTRÉAL / PIERRE ELLIOTT TRUDEAU INTL QC (CYUL)

A WestJet Encore de Havilland DHC-8-402 (C-GKWE/WEN3485) on a flight from Halifax/Stanfield Intl, NS (CYHZ) to Ottawa/MacDonald-Cartier Intl, ON (CYOW) reported an emergency locator transmitter (ELT) signal, 4/5 on its descent from FL240 into CYOW. Signal became intermittent at 13 000 ft and stopped at 8 000 ft. The Joint Rescue Coordination Centre (JRCC) Trenton (TR) was advised. Various aircraft in the vicinity reported the ELT. Last positive report was received at 2135Z.

March 22, 2020

Incident at N VILRO intersection

A weak, constant emergency locator transmitter (ELT) signal was heard for over 10 minutes and reported by 2 aircraft in the same location, one at FL220 (a Jazz de Havilland (JZA8781) at 0940Z) and the other at FL240 (a Jazz de Havilland (JZA8945) at 1002Z). The Joint Rescue Coordination Centre (JRCC) in Trenton was notified. The source was identified on the ground as the signal from a Syncrude Canada Ltd. Cessna 560 (C-FSNC) heading to St-Hyacinthe, QC (CSU3). No impact.
UPDATE AOR 263176-V3: Aircraft registration information for ELT source changed to a privately registered Piper PA-32R-300. Narrative updated to read: "The source was identified on the ground as the signal from a privately registered Piper PA-32R-300 heading to St-Hyacinthe, QC (CSU3)."

January 4, 2020

Incident at 65NM SW PUVIRNITUQ QC (CYPX)

An Air Inuit Ltd. Boeing 737-2Q2C (C-GMAI/AIE704) from La Grande-Rivière, QC (CYGL) to Puvirnituq, QC (CYPX) level at FL280 was cleared to leave controlled airspace below FL180 and was instructed to confirm that it left FL180. AIE704 reported having left FL180. The air traffic controller (ATC) contacted AIE704 to confirm that the aircraft was going to leave FL180, and the pilot confirmed. ATC cleared a Government of Quebec Canadair CL600-2B16 (Series 601-3R) (C-GURG/QUE10) from Puvirnituq, QC (CYPX) to Montreal/Trudeau, QC (CYUL) to climb to FL240 (aircraft travelling in the opposite direction) with an information exchange on the aircraft. At that moment, AIE704 said that it was leaving FL280. ATC corrected the situation and gave new clearance to QUE10 to stop its climb to 17 000 ft. No loss of separation.

November 20, 2020

Incident at In the vicinity of: SUDBURY ON (CYSB)

Multiple aircraft reported a strong emergency locator transmitter (ELT) signal in the vicinity of Sudbury, ON (CYSB). All reports were from FL240-280. The reporting aircraft included a Jazz de Havilland DHC-8-402 (JZA8289) from Toronto/Lester B. Pearson, ON (CYYZ) to Timmins, ON (CYTS), an Ornge Global Air Inc. Pilatus PC-12/47E (PUL105) from Toronto/Billy Bishop, ON (CYTZ) to Thunder Bay, ON (CYQT), and an Air Bravo Pilatus PC-12/45 (AB1250). The Joint Rescue Coordination Centre (JRCC) Trenton was advised. No operational impact.
UPDATE: Duplicate AOR 269457-V1: An Air Bravo Pilatus PC-12/45 (C-FKPI/AB1250) from Sudbury, ON (CYSB) to Wabush, NL (CYWK) reported an emergency locator transmitter (ELT) signal when climbing through A010, 10NM East of CYSB. The Joint Rescue Coordination Centre (JRCC) Trenton was advised. No operational impact. (Duplicate record AOR 269457-V1 / CADORS 2020O1654 deleted after information merge)
UPDATE: The source was subsequently determined to be a false alarm for a 2266837 Ontario Inc. Maule Air Inc. M-6-235 (C-FAUZ) that was in winter storage in the Grassy Lake, ON, area (46°20’44”N 081°23’34”W).

September 19, 2020

Incident at 40NM TORONTO / LESTER B. PEARSON INTL ON (CYYZ)

An Air Canada Boeing 787-9 (ACA139) from Toronto/Lester B. Pearson, ON (CYYZ) to Calgary, AB (CYYC) reported an emergency locator transmitter (ELT) signal while climbing between FL21 and FL240 upon departure from CYYZ. No operational impact.

September 12, 2020

Incident at In the vicinity of: SAULT STE. MARIE ON (CYAM)

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3123) from Toronto/Lester B. Pearson, ON (CYYZ) to Thunder Bay, ON (CYQT), while over Sault Ste. Marie, ON (CYAM), reported an emergency locator transmitter (ELT) signal while at FL240 and travelling Northwest bound. No other reports.

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