August 26, 2022

Incident at MONTREAL CENTRE / ACC DE MONTRÉAL

The air traffic services (ATS) unit offered FL250 at 10NM to a WestJet Encore Ltd. de Havilland DHC-8-402 (C-GWFE/WEN3404) from Toronto/Lester B. Pearson, ON (CYYZ) to Fredericton, NB (CYFC). The aircraft accepted the flight level, but initiated its climb immediately, well before reaching 10NM. The ATS unit immediately warned the aircraft, which descended to FL230. No impact on operations .

August 14, 2022

Incident at 4743N / 07704W

After receiving and correctly reading back clearance to climb to FL250, a Panorama Fixed Wings Ltd. Pilatus PC-12/45 (C-FYUT/PNO711) from Amos/Magny, QC (CYEY) to Montréal/St-Hubert, QC (CYHU) was seen climbing to FL259. No impact on operations.

February 8, 2022

Incident at 30NM MONTRÉAL / PIERRE ELLIOTT TRUDEAU INTL QC (CYUL)

Despite having been cleared for 15,000 feet with a correct readback, an Exact Air Beech A100 (ET835) from Montreal/St-Hubert, QC (CYHU) to Chicoutimi/Saint-Honoré, QC (CYRC) continued to climb to FL250 before air traffic controller (ATC) intervention. No impact.

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.

January 29, 2022

Incident at 5241N / 11828W

A Sunwest Aviation Ltd. Beech 1900D (CNK55) from Valemount, BC (CAH4) to Calgary, AB (CYYC) climbed into controlled airspace without clearance and not on frequency. Air traffic control (ATC) subsequently climbed CNK55 to FL250. No impact to the operation.

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 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.

June 20, 2022

Incident at 4422N / 07633W

A clear and loud emergency locator transmitter (ELT) signal was heard by several aircraft in the southern Ottawa area at and below FL250. The Joint Rescue Coordination Centre (JRCC) Trenton was advised. No impact on operations.

June 14, 2022

Incident at 95NM THUNDER BAY ON (CYQT)

A North Star Air Ltd. Pilatus PC-12 (BF712) from Webequie, ON (CYWP) to Thunder Bay, ON (CYQT) was observed climbing above the cleared altitude of FL250. The pilot was queried by the controller, and the pilot acknowledged and descended back to FL250.

February 4, 2022

Incident at 18NM WIARTON ON VOR/DME (YVV)

An Air Canada Airbus BD-500-1A11 (C-GNAM/ACA1113) from Toronto/Lester B. Pearson, ON (CYYZ) to Regina, SK (CYQR) reported a computer problem. During climb while en route, the aircraft stopped at FL250 and a return to CYYZ was requested. No emergency declared. ACA1113 landed on Runway 05 at 1425Z without further incident (WOFI). No impact to operations.

August 26, 2022

Incident at 5121N / 11211W

A WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3278) from Calgary, AB (CYYC) to Saskatoon/John G. Diefenbaker, SK (CYXE) reported a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) in reference to an Air Canada Airbus A321-211 (ACA143) from Toronto/Lester B. Pearson, ON (CYYZ) to Calgary, AB (CYYC). WEN3278 was level at FL250 and ACA143 was level at FL260. Traffic was passed to both aircraft in a timely manner. WEN3278 descended to 300 feet prior to resuming normal navigation. No impact on operations.

August 1, 2022

Incident at In the vicinity of: WRIGLEY NT (CYWY)

A foreign registered Piper PA-46-310P (DELAO) entered controlled airspace without a clearance while on a composite flight plan from Dawson City, YT (CYDA) to Yellowknife, NT (CYZF). They reported overhead of Wrigley, NT (CYWY) at FL250. No impact to operations.

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.

March 29, 2022

Incident at WHITEHORSE/ ERIK NIELSEN INTL (CYXY) (Communication navigation surveillance/air traffic system)

An Air North Charter & Training Ltd. Boeing 737-505 (C-GANH/ANT559) from Whitehorse/Eric Nielsen, YT (CYXY) to Vancouver, BC (CYVR) was assigned KODEM1 departure, VIGBO transition, FL250 by the IFR controller but was issued KODEM1 departure, LESEX transition, FL280 in error by the tower controller. No loss of separation occurred. No other impact to operations.

March 9, 2022

Incident at 131NM CALGARY INTL AB (CYYC)

A United States Air Force Air Mobility Command Boeing KC-135R (RCH793) from Fairchild/Air Force Base, WA (KSKA) to Royal Air Force Mildenhall, United Kingdom (EGUN) requested descent from FL410 to FL250 due to a pressurization issue. No emergency declared. No assistance required. No impact to operations.

February 3, 2022

Incident at TULOV intersection

A WestJet Boeing 737-800 (WJA268) after departing from Calgary, AB (CYYC) and was en route to Winnipeg/James Armstrong Richardson, MB (CYWG) was flight planned to altitude FL390. While in the climb, the aircraft levelled at FL290 and reported a pressurization issue. The aircraft requested descent to FL250 and continued to destination. No impact to operations.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. The flight crew recorded on logbook page AM49568 that a loud squeal from the First Officer (F/O) slide window started "260" and remained until descent "5.2 psi 150". Maintenance found the right-hand (R/H) Crown Drain Tube squished under the R/H sliding window. Drain Tube re-adjusted, temporarily secured and window closed correctly, in accordance with (IAW) maintenance manual (MM) 56-12-11. An internal ODR was raised to have the drain tube readjusted. Aircraft was returned to service on log page AM49568. Maintenance carried out the final readjustment to the R/H Crown Drain Tube Holder, as per aircraft maintenance manual (AMM) 25-11-21, once the aircraft returned to Calgary, AB (CYYC). The aircraft was returned to service on log page AM49577 and has flown 176 hrs and 53 cycles, with no further reported issues.

January 4, 2022

Incident at 5703N / 11046W

A WestJet Encore Ltd. de Havilland DHC-8-402 (C-GWUE/WEN4075) from MacKay/Firebag, AB (CYFI) to Saskatoon/John G. Diefenbaker, SK (CYXE) departed CYFI for CYXE. Shortly after departure, they advised they had a landing gear indication and asked to level at 9000 feet to troubleshoot. The issue was resolved shortly after, and WEN4075 continued to climb to FL250. No further issues. 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.

January 3, 2022

Incident at 6202N / 04301W

An American, corporately registered Embraer EMB-145EP (N261BC) from Narsarsuaq, Greenland (BGBW) to Keflavík, Iceland (BIKF) departed BGBW eastbound with a clearance to FL250, but climbed to FL256.

November 29, 2021

Incident at 100NM NNW VAL-D'OR QC (CYVO)

A Nolinor Aviation Boeing 737-2B6C (C-GNLN/NRL950) from Val-dOr, QC (CYVO) to Meadowbank, NU (CMB2) requested an emergency descent due to a pressurization issue, then asked to return to CYVO. No emergency was declared. No impact on operations.
UPDATE: TSB Report #A21Q0128: C-GNLN, a Nolinor Aviation Boeing 737-200 operating as flight NRL950, was on an instrument flight rules (IFR) flight from Val-d’Or, QC (CYVO) to Meadowbank, NU (CMB2). While the aircraft was climbing, when passing through FL250, the crew observed a warning that the cabin altitude was too high. The crew immediately initiated an emergency descent, but did not declare an emergency to air traffic control. The aircraft returned to land safely at CYVO. There were no injuries. The copilots summary examination showed that the left air conditioner pack switch was not completely selected on and was able to stay between 2 positions. Maintenance replaced the switch and it was then deemed operational.

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.

September 7, 2021

Incident at 180NM SW KUUJJUAQ QC (CYVP)

An Air Inuit de Havilland DHC-8-314 (C-FYAI/AIE852), from Quebec City/Jean-Lesage, QC (CYQB) to Kuujjuaq, QC (CYVP), initiated a descent to A120 owing to a loss of engine oil pressure and declared PAN PAN.
UPDATE: Aviation Incident Report #17313: The Flight Service Station (FSS) informed the Airport Operator that an inbound Air Inuit de Havilland DHC-8-314 (C-FYAI/AIE852) from Quebec City/Jean-Lesage, QC (CYQB) to Kuujjuaq, QC (CYVP) sent out a PAN PAN signal due to issues with the right engine while the aircraft was 30 minutes away from CYVP. The airport emergency coordination centre (ECC) was active. The local fire department and ambulances responded to the airport and remained on standby. The local hospital was notified. The aircraft landed on Runway 07 at 1741Z safely with no incident.
UPDATE: TSB Report #A21Q0082: C-FYAI, an Air Inuit de Havilland DHC-8-314 (DH8C) operating as flight AIE852, was on an instrument flight rules (IFR) flight from Quebec/Jean-Lesage Intl airport, QC (CYQB) to Kuujjuaq, QC (CYVP) with 21 passengers and 3 crew members on board. In cruise flight at FL250 and approximately 180NM southwest of CYVP, a right engine oil pressure fluctuation occurred. The crew consulted the Quick Reference Handbook (QRH) checklist, shut down the right engine (Pratt and Whitney, Canada, PW123B) and declared an emergency (PAN PAN). The aircraft landed safely at CYVP. There were no injuries or damages.

October 8, 2021

Incident at 20NM OTTAWA / MACDONALD-CARTIER INTL ON (CYOW)

An emergency locator transmitter (ELT) signal was received in the region of Maniwaki, QC (CYMW) and east of Ottawa/Macdonald-Cartier, ON (CYOW), between FL180 and FL250. The joint rescue coordination centre (JRCC) Trenton was notified.

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.

January 26, 2021

Incident at 30NM ESE Whatcom, WA VORTAC (HUH)

Aviation Incident Report: Seattle air route traffic control center (ARTCC) reported that a Cargojet Airways Boeing 757-200 (CJT925) from Vancouver, BC (CYVR) to Cincinnati/Northern Kentucky, KY (KCVG) was illuminated by a green laser at the 12 oclock position while southbound at FL250, 30NM east-southeast of the Whatcom, WA VORTAC (HUH). No injuries reported. Everson Police Department notified.

September 23, 2021

Incident at 52NM SASKATOON / JOHN G. DIEFENBAKER INTL SK (CYXE)

On initial contact the with North controller, a Jazz Bombardier CL-600-2D24 (JZA8720) from Saskatoon/John G. Diefenbaker Intl, SK (CYXE) to Regina Intl, SK (CYQR) was given and read back FL250. The pilot subsequently queried the controller if they were given FL250 or FL280. Controller reiterated FL250 and JZA8720 was then observed to be at FL259 before descending to FL250. No impact to operations.

July 27, 2021

Incident at 31NM EDMONTON INTL AB (CYEG)

A Canadian North Boeing 737-300 (AKT1760) from Calgary, AB (CYYC) to Fort Mackay/Albian, AB (CAL4) requested descent from FL320 to FL250 due to a mechanical issue. No emergency declared. No impact to operations.

July 23, 2021

Incident at 16NM SE IGVEP intersection

A Babin Air Ltd. Piper PA-42-1000 (C-GZPU) from Glacier Park, MT (KGPI) to Calgary, AB (CYYC) experienced intermittent displays of incorrect Mode C information.
UPDATE: Duplicate AORs 275821-V1 & 275846-V1: A Babin Air Ltd. Piper PA-42-1000 (C-GZPU) from Glacier Park, MT (KGPI) to Calgary, AB (CYYC), approximately 30NM south of the IGVEP intersection, was observed with a Mode C readout indicating that the aircraft was climbing when it was actually descending. The Mode C readout was indicating "FL250 and climbing". The pilot verified that their altitude was FL238 and descending. Additionally, the altitude readout jumped from FL264 to FL200 in a single radar update. No impact to operations. (Duplicate AOR 275821-V1 / CADORS 2021C2946 & AOR 275846-V1 / CADORS 2021C2945 deleted after information merge)

June 16, 2021

Incident at 176NM COLD LAKE (GROUP CPT. R.W. MCNAIR) CFB (CYOD)

A United States Air Force Boeing KC-135R (SWATH61) from Cold Lake, AB (CYOD) to Cold Lake, AB (CYOD) was the lead flight in a formation at FL260B280 and descended to FL250 without clearance. All other aircraft in the formation remained in the assigned altitude block. No other impact to operations.

April 3, 2021

Incident at 5851N / 12000W

A United States Air Force Air Mobility Command Lockheed C-5 (Galaxy) (RCH598) from Lincoln, NB (KLNK) to Eielson Air Force Base, AK (PAEI) reported a cabin pressurization issue and descended to FL250. No emergency declared. 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.

August 4, 2021

Incident at 96NM W SAINT JOHN NB (CYSJ)

A Jazz Bombardier CL-600-2B19 (C-FDJA/JZA8790) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Saint John, NB (CYSJ) declared "PAN PAN" to indicate a pressurization issue. The pilot then reported that they were able to control the cabin pressure manually and assistance was no longer required. The aircraft landed at 0149Z without incident. No impact on operations.
UPDATE: TSB Report #A21A0023: C-FDJA, a Bombardier CRJ 200 aircraft operated by Jazz was conducting flight JZA8790 from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Saint John, NB (CYSJ). At approximately 21h25 AST, the aircraft was descending through FL250 at approximately 96NM W of CYSJ when the crew noted a gradual loss of cabin pressurization. They made contact with the Moncton (YQM) Area Control Centre (ACC) to declare "PAN PAN" and provided details on the nature of the problem. Working through the QRH and Emergency Checklist enabled the crew to stabilize the cabin altitude by switching from Auto to Manual mode. Subsequent contact was made with YQM ACC to advise that the pressurization issue was under control and the crew requested to downgrade from "PAN PAN" status to regular flight status. The aircraft landed safely at about 22h55 AST. None of the passengers or crew were physically affected by the loss of pressurization control. Company maintenance determined that the right-hand (RH) outflow valve was not closing fully. The secondary outflow valve and the Cabin Pressure Selector Panel were replaced and the aircraft was returned to service. Maintenance has submitted an SDR to Transport Canada.

July 16, 2020

Incident at 10NM PARENT QC (CYPP)

The pilot of an Air Inuit Ltd. de Havilland DHC-8-314 (C-GIAB/AIE802) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Kuujjuarapik, QC (CYGW), level at FL250, requested a descent to 14 000 feet due to depressurization. AIE802 subsequently requested a return to CYUL. No emergency declared or impact on operations. AIE802 touched down on Runway 24L at 1445Z.
Update TSB Report #A20Q0076: C-GIAB, a De Havilland DHC-8-314 operated by Air Inuit, was performing flight AIE802 under instrument flight rules, from Montreal/Pierre Elliott Trudeau Intl airport, QC (CYUL) to Kuujjuarapik Airport, QC (CYGW) with 3 crew members and 9 passengers on board. While cruising at flight level 250, approximately 10 nautical miles (nm) northeast of CYPP, the "Cabin Press" warning light activated. The crew noticed that the cabin altitude was above 10,000 feet and an emergency descent was initiated. An emergency was then declared and the crew performed the Emergency Checklist (QRH). After leveling off at 14,000 feet, the cabin altitude stabilized at 7,000 feet. The crew requested a return to CYUL and the emergency was canceled. The aircraft landed safely and there were no injuries.

September 5, 2020

Incident at In the vicinity of: PRINCETON BC (CYDC)

There were a few Emergency Locator Transmitter (ELT) signal reports in the vicinity of Princeton, BC (CYDC) from multiple aircraft in the climb above FL250. The Joint Rescue Coordination Centre (JRCC) Victoria was advised.

March 12, 2020

Incident at 55NM PRINCE GEORGE BC (CYXS)

A Central Mountain Air de Havilland DHC-8-102 (C-GMJJ/GLR708) from Terrace, BC (CYXT) to Prince George, BC (CYXS) descended from FL250 without clearance. No operational impact.

February 16, 2020

Incident at TRENTON ON (CYTR)

A Northern Air Solutions Inc. Cessna 550 (C-FHLG) from Kitchener/Waterloo, ON (CYKF) to Ottawa/MacDonald-Cartier, ON (CYOW) advised of depressurization, and requested descent. Descent issued to 10,000ft. The aircraft elected to continue on to CYOW. No emergency declared and no impact on operations.
Update TSB Report #A20O0019: C-FHLG a Northern Air Solutions Inc. Cessna 550 aircraft, was cruising at FL250 abeam CFB Trenton (CYTR), ON when the flight crew heard a bang and then the cabin 10,000 ALT light illuminated. The flight crew initiated crew and passenger oxygen, contacted ATC and started an emergency descent to 10,000 feet. The flight crew elected to divert to Ottawa/Macdonald-Cartier Intl. (CYOW), ON and landed without further incident.

August 31, 2020

Incident at In the vicinity of: HAVRE, MT

Aviation Incident Report #16767: While in cruise at FL250, an odour was detected, followed by a smoke or a haze emitting from the front of the cabin of a Saskatchewan Public Safety Agency Gulfstream 695A from Boise, ID (KBOI) to La Ronge (Barber Field), SK (CYVC). An emergency descent was requested from air traffic control (ATC) and initiated to 12,000 feet. The procedures checklist for "Smoke in the Cabin" was initiated. The smoke subsided shortly after the start of the descent. Request was made to level at 13,000 feet and the situation was monitored. Approximately 5 minutes later the haze (oily mist) reappeared briefly. A request was made with ATC for a diversion to the nearest airport (Havre, MT). The checklist for "Smoke in the Cabin" was completed, depressurizing the aircraft and shutting off the environmental system. While descending through 9,000 feet and in visual contact with the airport, the pilot initiated cancellation of IFR services with ATC and landed without incident. A maintenance crew conducted a troubleshoot and a suspected defect with the environmental system was recorded. The aircraft safety was deemed to be unaffected with restrictions (non-pressurized and without the environmental system engaged) in place to continue to its home base. Flight was continued without further incident to home base.

February 9, 2020

Incident at In the vicinity of: PASKE

TSB Report #A20F0032: C-FNJZ, a CRJ 900 operated by Jazz Aviation LP was conducting flight AC8670 from Vancouver Intl. (CYVR), BC to San Diego Intl. (KSAN), CA. While on top at FL270 Vicinity of PASKE (Porter, CA), the crew encountered clear air turbulence. Airspeed fluctuated +/-30kts but did not over-speed nor did the Auto Pilot kick off. Turbulence and Ignition buttons were on. The turbulence made reading the instruments on the panel impossible as they were too blurry. The motion was up/down as well as side/side. The seat belt signs were switched on about 2 min prior to the encounter. Flight crew initiated descent to FL 250 where they had moderate to borderline severe turbulence. Continuing descent to FL230 flight encountered a severe turbulence event that lasted approximately 5 minutes. Flight climbed to FL250 where the turbulent event ceased. Maintenance is arranging for an inspection.

December 13, 2020

Incident at 80NM EDMONTON INTL AB (CYEG)

A Canadian North Inc. Boeing 737-300 (MPE1403) from Fort MacKay/Albian, AB (CAL4) to Edmonton, AB (CYEG), cleared down to FL250, reported a traffic alert and collision avoidance system (TCAS) warning due to traffic that was level at FL240. Traffic was a WestJet Encore Ltd. de Havilland DHC-8-402 (WEN3359) from Calgary, AB (CYYC) to Yellowknife, NT (CYZF). No evasive action was needed or taken. No loss of separation. Traffic was passed to MPE1403.

April 23, 2020

Incident at In the vicinity of: GRAVELBOURG SK (CJM4) (Bird presence, Aerodrome - other)

Aviation Incident Report #16596: Information for Winnipeg Centre: a suggestion was made that a NOTAM be issued for Gravelbourg, SK (CJM4) and Moose Jaw, SK (CYMJ) regarding increased migratory waterfowl (i.e. geese). Flights of approximately 50 geese have been observed on April 23 and 24, flying Northbound near Gravelbourg. Due to thermal activity, these flights are currently much higher than would be expected normally. Flights of these geese have been seen at approximately FL200 to FL250 above sea level (ASL). This would be an unexpected hazard to civil and nearby military aviation. 15 Wing Royal Canadian Air Force (RCAF) should be advised, as they use this area extensively to transit jet trailers to their southern training zone (CYA-310M). This is a semi-circular area around N49°30.16 W106°0.48.

April 22, 2020

Incident at 5218N / 10500W

Emergency Locator Transmitter (ELT) activation reports were received from multiple aircraft that were between FL250 and FL410, Eastbound, beginning approximately 35NM East of Saskatoon/John G. Diefenbaker, SK (CYXE): a Government of Canada, Department of National Defence Airbus A310 (CFC4168) from Edmonton, AB (CYEG) to Trenton, ON (CYTR); a Sunwest Aviation Ltd. Learjet 45 (C-GVVZ) from Edmonton, AB (CYEG) to Winnipeg/James Armstrong Richardson, MB (CYWG); and a Jazz Bombardier CL-600-2D24 (JZA8628) from Saskatoon/John G. Diefenbaker, SK (CYXE) to Toronto/Lester B. Pearson, ON (CYYZ). The Joint Rescue Coordination Centre (JRCC) Trenton was notified. No operational impact.

February 25, 2020

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

A Government Of Canada, Department Of National Defence Lockheed C-130 (Hercules) (CFC2531) from Eureka, NU (CYEU) to Iqaluit, NU (CYFB) reported position ADSAM at FL250 on an IFR clearance to CYFB. No estimate had been received from Reykjavik Area Control Centre (BIRD). BIRD advised. No impact to the operation.

February 15, 2020

Incident at 5830N / 08100W

At approximately 1820Z, a United States Armed Forces Military Airlift Command Lockheed C-5 (Galaxy) (RCH708) from Rota, Spain (LERT) to Fairfield/Travis Air Force Base, CA (KSUU) stated they had a pressurization problem and requested descent to FL250. While on descent, the crew indicated they would like to climb back up to FL340. No impact on operations.

February 3, 2020

Incident at FREDERICTON INTERNATIONAL AIRPORT

TSB Report #A20A0007: C-GBJZ, a de Havilland Dash 8-400 aircraft operated by Jazz Aviation LP, was conducting flight JZA8902 from Montreal Trudeau airport (CYUL), QC, to the Greater Moncton Romeo Leblanc airport (CYQM), NB. While in cruise at FL250 over Fredericton New Brunswick, the aircraft encountered severe turbulence. The autopilot disengaged, the aircraft banked left to about 40 degrees and lost approximately 1000 feet before the crew could regain control. The turbulence lasted for approximately 45 seconds before abating. The 77 passengers and 4 crew were wearing seatbelts and no one was injured. The aircraft landed safely at CYQM. Maintenance completed a severe turbulence inspection and the aircraft was released to service.

July 23, 2019

Incident at 175NM SW KUUJJUAQ QC (CYVP)

After depressurization had occurred, a Chrono Aviation Beech 1900D (C-FKNO/NDL901) from Roberval, QC (CYRJ) to Kuujjuaq, QC (CYVP) had to descend from FL250 to 10 000 ft. No emergency declared. At 10 000 ft, NDL901 confirmed that everything was fine. No impact.

June 21, 2019

Incident at 30NM ROBERVAL QC NDB (RJ)

A target was seen at FL250 descending to FL236 and travelling north-east at a speed of 110 kt in Class A airspace. No impact.

November 21, 2019

Incident at 50NM KAMLOOPS BC (CYKA)

A privately registered Cessna 170A from Kamloops, BC (CYKA) to Prince George, BC (CYXS) was cleared to FL240 however, the aircraft climbed to FL250 initially before being instructed to return to FL240. No operational impact.

September 17, 2019

Incident at VANCOUVER INTL BC (CYVR)

TSB Report #A19P0140: C-GEOQ, a Boeing 767-375 operated by Air Canada Rouge, was conducting flight ROU1566 from Vancouver Intl (CYVR), BC to Montréal/Pierre Elliott Trudeau Intl (CYUL), QC with 8 crew members and 245 passengers on board. On the initial climb at approximately 7000 feet ASL, the flight and cabin crew noticed a strong odour throughout the aircraft. The flight crew attempted to clear the odour however with no success. The flight crew requested to level off at FL250 to troubleshoot the issue. Subsequently, the crew declared a PAN PAN, donned their oxygen masks and returned to land in CYVR without further incident. It was discovered that the cause of the strong odour was a shipment of Durian fruit in the forward cargo compartment. The fruit shipment was removed and the aircraft was returned to service.

July 27, 2019

Incident at 40NM Kelowna (CYLW)

An Image Air Charter Ltd Cessna 525C (C-GNTL) from Kelowna, BC (CYLW) to Calgary, AB (CYYC) departed CYLW, and was cleared to and readback FL250. Climbing through FL250, C-GNTL asked for confirmation of FL280 cleared altitude. C-GNTL was re-cleared to FL310. No operational impact.

More...