January 23, 2020

Incident at 30NM ST-JEAN QC VOR/DME (YJN) (Communication navigation surveillance/air traffic system)

An American registered Learjet 35A (N244LJ) from Page Field, FL (KFMY) to Quebec/Jean Lesage, QC (CYQB) was cleared to descend to FL320 but read back FL230. This readback error was not corrected by air traffic services (ATS). Impact: separation with a Jazz Bombardier CL-600-2D24 (C-FJZD/JZA8630) from Ottawa/Macdonald-Cartier, ON (CYOW) to Halifax/Stanfield, NS (CYHZ) at FL310 was not maintained. No other impact on operations.

February 11, 2020

Incident at 33NM PICKLE LAKE ON (CYPL) (Communication navigation surveillance/air traffic system)

The Winnipeg Area Control Centre (ACC) Trout Lake controller coordinated FL230 for an Air Bravo Corp. Pilatus PC-12 (AB1182) from Pickle Lake, ON (CYPL) to Thunder Bay, ON (CYQT) with the adjacent sector and updated the Canadian Automated Air Traffic System (CAATS) flight plan information. The Trout lake sector controller did not issue the clearance to AB1182.

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

January 15, 2020

Incident at 5856N / 06319W

A United States Air Force Lockheed C-130 (RCH558) on a flight from Goose Bay, NL (CYYR) to Thule Air Base, Greenland (BGTL) was observed on the radar leaving FL230 for FL210 without clearance. The aircraft was out of range of very high frequency (VHF). Clearance for RCH558 to maintain FL210 was relayed by a Cathay Pacific Boeing 777-300 (CPA845). No impact on operations.

October 20, 2019

Incident at 4514N / 07340W

Although it had received and read back clearance to climb to FL230, a Jazz Bombardier CL-600-2B19 (C-GUJA/JZA8172) from Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) to Washington/Dulles Intl, DC (KIAD) called Boston, MA (KBOS) on climb to FL280. No impact.

May 20, 2019

Incident at 4NM MONTRÉAL / PIERRE ELLIOTT TRUDEAU INTL QC (CYUL)

Although it had been cleared for 5 000 ft and had correctly read it back, a Government of Canada Department of National Defence Raytheon Beechcraft T-6 Texan II (SNAPR13) from Montreal/Trudeau, QC (CYUL) to Sault Ste. Marie, ON (CYAM) continued its climb to FL230. The error was detected when SNAPR13 passed 5 600 ft the moment it had been cleared again for 5 000 ft. No impact.

February 27, 2019

Incident at KANIK intersection

An American, corporately registered Cessna 525A (N125BJ) from Wichita, KS (KICT) to Ottawa/MacDonald-Cartier Intl, ON (CYOW) did not respect the restriction of FL230 and below at KANIK on the CAPTL4 arrival (ARR). No operational impact.

January 16, 2019

Incident at BAIE-COMEAU QC VOR/DME (YBC) (Weather balloon, meteor, rocket, CIRVIS/UFO)

A Provincial Airlines de Havilland DHC-8-102 (C-FDND/PVL1910) from Quebec/Jean Lesage, QC (CYQB) to Sept-Îles, QC (CYZV), which was level at FL230 heading north-east towards CYZV, reported a light that was red, green, then white, which rose and fell rapidly. PVL1910 could not evaluate the distance between itself and this light.

October 22, 2019

Incident at 40NM VANCOUVER INTL BC (CYVR)

A 1364254 Alberta Ltd. Socata TBM 700 (C-FFYM) departed Vancouver Intl, BC (CYVR) for Kelowna, BC (CYLW) filed SEKAB SEKAB3. The aircraft was given direct SEKAB by VR terminal. Vancouver (VN) controller confirmed direct SEKAB on initial contact and climbed aircraft to 17,000 feet. The aircraft was on the cleared route for 3-4 minutes and level for 1-2 minutes and suddenly made a 60 degree right turn into a neighbouring sector and directly at an inbound aircraft landing at CYVR and descending through FL230 for 10,000 feet. The VN controller inquired with C-FYYM and instructed the pilot to turn north immediately. Controller also requested VE controller to stop inbound aircraft above. C-FYYM took exceptionally long to correct their track which included turning the wrong direction and climbing above the cleared altitude to 173. Pilot stated it was an autopilot issue.

April 20, 2019

Incident at YNY 250 / 10

A Jazz deHavilland DHC-8-311 (C-FADF/JZA8426) from Kamloops, BC (CYKA) to Calgary, AB (CYYC) initially cleared to FL230 was instructed to stop climb at FL210, and continued climb through FL217 before controller could stop them.

February 27, 2019

Incident at 103NM PORT HARDY BC VOR/DME (YZT)

A United States Air Force Lockheed C-130 (Hercules) (AXIS43) from Elmendorf Air Force Base, Alaska (PAED) to Naval Air Station Whidbey Island, WA (KNUW) experienced radio failure while enroute to KNUW at FL230. The aircraft was eventually able to transmit on 243.0 only. AXIS43 landed safely at KNUW.

September 17, 2019

Incident at 131NM TORONTO / LESTER B. PEARSON INTL ON (CYYZ)

An Air Canada Airbus A321-211 (C-GIUB/ACA115) from Toronto/Lester B. Pearson, ON (CYYZ) to Vancouver, BC (CYVR) declared MAY DAY due to a pressurization issue and performed an immediate descent. ACA115 commenced a hold at BOXUM to burn off fuel. The Aircraft Rescue and Fire Fighting (ARFF) unit was deployed and ACC115 landed on Runway 15L at 2101Z without incident. No impact to operations.
Update TSB Report #A19O0135: C-GIUB, an Airbus A321 aircraft operated by Air Canada, was conducting flight ACA115 from Toronto/Lester B. Pearson Intl (CYYZ), ON to Vancouver Intl (CYVR), BC with the number 2 Pack on MEL. During the climb out through FL230 the crew were unable to control the cockpit and cabin temperature. The aircraft was levelled off while the flight crew attempted to control the temperature. Unable to do so, the flight crew initiated a rapid descent to 10000 feet ASL. An emergency was declared and the aircraft was diverted back to CYYZ. The overweight landing was uneventful with ARFF standing by. During the descent the cabin oxygen masks did not deploy. Maintenance found damaged bellows downstream of the check valve and replaced the bellows. The number 2 Pack Flow Control was also replaced in accordance with the AMM. No other faults were found, and the MEL was removed from the number 2 Pack.

September 10, 2019

Incident at 4322N / 07950W

A Delta Airlines Airbus A320-212 (N335NW/DAL1434) from Buffalo, NY (KBUF) to Minneapolis-St. Paul, MN (KMSP) climbing to FL300 came in conflict with a Skyservice Business Aviation Inc. Beech B300 (C-FIBR/SYB529) from Windsor, ON (CYQG) to Peterborough, ON (CYPQ) at FL230.

August 4, 2019

Incident at TORONTO / LESTER B. PEARSON INTL ON (CYYZ) (ATS operating irregularity)

An Air Canada Rouge Airbus A319 (ROU1975) on a flight from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Nanaimo, BC (CYCD) was instructed to climb to FL230 while inbound traffic, an Air Canada Airbus A321-211 (ACA605) on a flight from Halifax/Stanfield Intl, NS (CYHZ) to Toronto/Lester B. Pearson Intl, ON (CYYZ) was descending to 8000 feet.

June 14, 2019

Incident at 4418N / 07654W

At 1045Z, Air Nunavut Ltd. Dassault Falcon 10 (C-GSXJ/BFF102) from St.John, NB (CYSJ) to Toronto/Oshawa, ON (CYOO) was cleared to 14,000 ft and was instructed to change frequency. BFF102 read back instructions. At 1047Z, BFF102 changed frequency and contacted air traffic control (ATC) stating they were through FL230 for 7000 ft. BFF102 was cleared again to 14,000 ft. No operational impact.

April 30, 2019

Incident at THUNDER BAY ON (CYQT)

Shortly after departing Runway 25 at Thunder Bay, ON (CYQT), a 2389369 Ontario Limited Cessna 172M (C-GWMF) from Thunder Bay, ON (CYQT) to Winnipeg/James Armstrong Richardson, MB (CYWG) was instructed to turn left to a heading of 340 degrees and to climb to FL230. The aircraft read the instructions back correctly but was subsequently observed turning beyond 340 degrees to approximately 300 degrees. No operational impact as both the tower and terminal controllers noticed the error and slightly delayed the departure of another aircraft from the same runway. Automatic Departure Release (ADR) was in effect.

April 18, 2019

Incident at TALEB intersection

A Porter Airlines de Havilland DHC-8-402 (C-GLQD/POE261) from Toronto/Billy Bishop Toronto City, ON (CYTZ) to Ottawa, ON (CYOW) was cleared to FL210. POE261 climbed to and levelled at FL230. POE261 re-cleared to FL230. No operational impact.

February 27, 2019

Incident at DELVA intersection

A Cargojet Airways Ltd. Boeing 767-300 (CJT301) from Hamilton, ON (CYHM) to Calgary Intl, AB (CYYC) checked in while climbing through 7300 feet for the cleared altitude of 6000 feet. The controller re-cleared CJT301 to maintain 14000 feet. At 1744Z, CJT301 was cleared to maintain FL230 and read back the same. CJT301 was seen to climb to 14600 and then descend back to 14000, at which the point the controller re-cleared the flight to FL230. No conflicts or operational impact.

March 6, 2019

Incident at In the vicinity of: OTTAWA / MACDONALD-CARTIER INTL ON (CYOW)

A WestJet Encore de Havilland DHC-8-402 (WEN3459) from Ottawa/Macdonald-Cartier Intl, ON (CYOW) to Toronto/Pearson Intl, ON (CYYZ), at 1359Z, was authorized to FL220, with a read back that appeared correct. WEN3459 was then observed at FL230, and was questioned and re-authorized to FL220. No impact on operations.

January 7, 2019

Incident at 12NM OTTAWA/MACDONALD-CARTIER INTL (YOW)

A SkyWest Airlines Bombardier CL-600 2B19 (series 200) (N461SW/SKW4875) from Ottawa/Macdonald-Cartier, ON (CYOW) to Detroit Metro/Wayne County, MI (KDTW) was cleared by the Concordia sector to climb to FL280. The sector ends at FL230 and no coordination was carried out with the Picton sector. No impact on operations.

May 25, 2019

Incident at 45 NM E Denver (KDEN)

TSB #A19F0134: C-FLWE, an Embraer ERJ 190-100 aircraft operated by Air Canada, was conducting flight ACA1038 from Denver Intl (KDEN), CO to Toronto/Lester B. Pearson Intl (CYYZ), ON with 4 crew members and 87 passengers on board. Shortly after the departure from KDEN, the flight crew received a LANDING GEAR WEIGHT ON WHEELS SYSTEM fail message. The flight crew stopped the climb at FL230, executed the QRH and, in discussion with the operator’s Maintenance Control Centre, decided to return to KDEN. No emergency was declared, and the aircraft landed slightly overweight without further incident. The operator’s maintenance carried out a wiring check as per the Fault Isolation Manual (FIM), and no faults were found. The Proximity Sensor Electronic Module (PSEM) 2 was replaced in accordance with (IAW) the Aircraft Maintenance Manual (AMM), and the aircraft was returned to service.

November 19, 2019

Incident at 40NM N IQALUIT NU (CYFB) (Communication navigation surveillance/air traffic system)

While inbound for Iqaluit, NU (CYFB), a First Air Aerospatiale ATR 42-500 (FAB883) from Artic Bay, NU (CYAB) to Iqaluit, NU (CYFB) was cleared for FL230 but read it back wrong and it was not corrected. Impact: loss of separation with an Aerospatiale ATR 42-500 (FAB871) from Iqaluit, NU (CYFB) to Igloolik, NU (CYGT) climbing to FL220 in the opposite direction.
Update: TSB Report A19Q0191: C-FTIQ, a First Air ATR-42-500 (FAB883), was on an IFR flight from Arctic Bay, NU (CYAB) to Iqaluit, NU (CYFB) with 8 passengers and 3 crew members on board. There was a misunderstanding with respect to descent clearance at flight level (FL) 230 and the aircraft continued its descent below FL230. At that moment, C-FTIL, a First Air ATR-42-500 (FAB871) on an IFR flight from CYFB to Igloolik, NU (CYGT) with 21 passengers and 3 crew members on board, was climbing to FL220. Air traffic control noticed FAB883s descent below FL230 and intervened through the CYFB flight service station (FSS), asking FAB883 to stop the descent to FL200 and FAB871 to stop the climb to FL190. Due to the time required to issue clearances through the FSS, FAB883 descended to FL198 before pulling up to FL200 while the two aircraft were approximately 40 NM north of CYFB. Separation between the two aircraft was reduced to 800 ft vertically and 6 NM horizontally while the required separation is 1 000 ft vertically and 10 NM horizontally. The two aircraft were in radio contact on frequency 126.7 MHz and were displayed on their traffic alert and collision avoidance systems (TCAS). There were no injuries or damage.

October 30, 2019

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

Shortly after departure from Runway 31, a Calm Air Aerospatiale ATR 42-320 (C-GKKR/CAV3002) from Winnipeg/Richardson, MB (CYWG) to Churchill, MB (CYYQ) was cleared to continue on the standard instrument departure (SID) and climb to FL230. The pilot read back the clearance correctly. CAV3002 was observed on radar turning right after climbing through 3000 ft. When queried by the Winnipeg Terminal controller, the pilot admitted the error. No impact to operations.

September 28, 2019

Incident at DAPOP intersection

A CargoJet Airways Boeing 757-200 (CJT919) on a flight from Calgary Intl, AB (CYYC) to Cincinnati/Northern Kentucky, KY (KCVG) departed CYYC, got to flight planned altitude of FL350, and shortly thereafter declared an emergency with a pressurization issue. The aircraft then requested a descent and a descent to 10,000 ft was given. The aircraft descended to FL230, and requested clearance back to CYYC at 15,000 ft. Clearance to CYYC was issued over the arrival gate at 16,000 ft as the aircraft felt an emergency situation was no longer required. Air Traffic Control (ATC) gave the aircraft priority and brought the aircraft in direct. Aircraft landed safely, no impact to operations.
Update TSB Report #A19W0134: C-GCJT, a Boeing 757-200 operated by Cargojet Airways, was conducting flight CJT919 from Calgary Intl (CYYC), AB to Covington/Cincinnati/Northern Kentucky Intl (KCVG), KY. Upon reaching cruising altitude, the cabin altitude climbed at 100 per minute and the “cabin altitude” warning sounded. The flight crew declared an emergency, initiated a controlled descent, and donned oxygen masks. The aircraft returned to CYYC and landed without further incident. There were no injuries. At the time of the occurrence, the Equipment Cooling Overboard Exhaust valve was deferred by company maintenance and locked in the SMOKE (partially OPEN) position as per the MEL requirements. Upon return to CYYC, company maintenance found the value in the fully open position. The equipment overboard cooling exhaust valve failed to the full open position while in the locked out position, which created the loss of cabin pressure. The valve was replaced and tested. The aircraft was returned to service.

July 30, 2019

Incident at 6900N / 09000W

An Israeli Air Force Lockheed C-130 (Hercules) (IAF065) from Yellowknife, NT (CYZF) to Keflavik, Iceland (BIKF) was observed on radar at FL230 when last cleared altitude was FL190 while in controlled airspace. IAF065 was re-cleared to destination, no further impact on operations.

Incident at 6900N / 09000W

An Israeli Air Force Lockheed C-130 (Hercules) (IAF066) from Yellowknife, NT (CYZF) to Keflavik, Iceland (BIKF) climbed to FL230 without clearance. Separation was not assured with an Israeli Air Force Lockheed C-130 (Hercules) (IAF065) from Yellowknife, NT (CYZF) to Keflavik, Iceland (BIKF), who also climbed to FL230 without clearance. Surveillance separation was established. No further impact on operations.

June 16, 2019

Incident at 85NM WINNIPEG / JAMES ARMSTRONG RICHARDSON INTL MB (CYWG)

A Voyageur Airways de Havilland DHC-8-314 (C-FEXZ/VAL800) from Pikangikum, ON (CYPM) to Winnipeg/James Armstrong Richardson, MB (CYWG) was at FL240 and reported traffic alert and collision avoidance system (TCAS) alert and advised turning right. The traffic in vicinity was a Perimeter Aviation de Havilland DHC-8-314 (C-GJYZ/PAG1571) from Winnipeg/James Armstrong Richardson, MB (CYWG) to Elk Island, MB (CKZ3) climbing to FL230. Both aircraft were given traffic information regarding each other and both pilots advised having the other on TCAS. At closest proximity the aircraft were 1 mile laterally and 1200 feet vertically apart. No impact to operations.

May 20, 2019

Incident at 5642n / 11707w

A CanWest Air Beech 200 (CWA925) from Peace River, AB (CYPE) to Fort Vermilion, AB (CEZ4) was cleared to FL210. The controller observed aircraft climbing through FL215 and queried pilot. The controller cleared CWA925 FL230. No impact to operations.

February 1, 2019

Incident at 50NM N YELLOWKNIFE NT (CYZF)

The pilot of a First Air Aerospatiale ATR 42-500 (C-FTID/FAB852) from Yellowknife, NT (CYZF) to Cambridge Bay, NU (CYCB), after departure and when approximately 50NM North of CYZF, climbing through F220, declared an emergency, requiring immediate descent to 10,000 feet, and advised that they intended to return to CYZF. The aircraft landed safely at CYZF at 1919Z. No impact to operations.
Update TSB Report #A19W0017: C-FTID, an Aerospatiale ATR42-500 aircraft operated by First Air, was conducting flight FAB852 from Yellowknife (CYZF), NY to Cambridge Bay (CYCB), NT with 3 crew members and 22 passengers on board. Approximately 60nm NNE of CYZF, after leveling at FL230, the flight crew received a master warning indication for "EXCESS CABIN ALTITUDE". The crew completed the applicable memory items and carried out the applicable QRH procedure. An emergency was declared with ATS and the decision to return to CYZF was made where an uneventful landing was completed. Company maintenance found a damaged ground air conditioning duct check valve. The part was replaced, ground checks/runs were completed, and the aircraft was returned to service.

January 11, 2019

Incident at 67NM CALGARY INTL AB (CYYC)

A Jazz de Havilland DHC-8-300 (JZA8408) from Kelowna, BC (CYLW) to Calgary International, AB (CYYC) declared an emergency (PAN PAN) due to pressurization issues. The aircraft landed safely on Runway 35L at 0246Z. No impact on operations.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. During cruise, at FL230, the crew received the master warning light. Cabin pressure was at 12,500 feet and climbing. The crew declared a PAN PAN and preformed an emergency descent down to 14,000 feet. They ran the checklist, but were unable to regain control of the cabin pressure. Once clear of the mountains, the crew cancelled the PAN PAN and proceeded with a normal arrival. Maintenance replaced the Cabin Pressure Control Selector and the Cabin Pressure Controller. Satisfactory test flight completed and pressurization functional check carried out with no further fault noted. Two Service Difficulty Reports were submitted for this event.
Update TSB Report #A19W0008: C-GKTA, a de Havilland DHC-8-300 aircraft operated by Jazz Aviation LP, was conducting flight JZA8408 from Kelowna (CYLW), BC to Calgary Intl (CYYC), AB with 3 crew members and 13 passengers on board. During cruise flight at FL230 approximately 115 nm south west of CYYC, the flight crew received a cabin pressure master warning light. The cabin altitude was at 12 500 feet and climbing; consequently, the flight crew initiated an emergency descent to 14 000 feet, and declared a PAN PAN. The QRH was executed, and the flight crew regained control of the cabin. Once the aircraft was clear of the mountains, the emergency was cancelled and the aircraft landed on Runway 35L without further incident. There were no injuries. The operator’s maintenance replaced the cabin pressure selector panel, and the cabin pressure controller in accordance with (IAW) the procedure. Functional pressurization check was performed IAW Aircraft Maintenance Manual (AMM) 21-30-00. A test flight was completed and no faults were found. The aircraft was returned to service.

October 6, 2019

Incident at 4522N / 06447W

A Government of Canada, Department of National Defence Lockheed C-130 (RSCU344) on a flight from Greenwood, NS (CYZX) to Goose Bay, NL (CYYR) requested descent due to pressurization problem. After resolving the issue the aircraft requested climb to FL230 at 1937Z and continued to its destination. No impact to operations.

August 29, 2019

Incident at 24NM HALIFAX / STANFIELD INTL NS (CYHZ)

An Irving Oil Transport Bombardier BD-100-1A10 (C-FALI/KCE2) on a flight from Halifax/Stanfield Intl, NS (CYHZ) to Saint John, NB (CYSJ) was cleared to and readback FL220. The aircraft climbed to FL230. No impact on operations.

May 13, 2019

Incident at 39NM CHARLO NB NDB (CL)

A Provincial Aerospace Beech B300 (C-FMUN/SPR1904) from Charlo Regional, NB (CYCL) to Halifax/Stanfield, NS (CYHZ) cleared to and read back FL210. The aircraft climbed to FL230. No Impact on operations.

December 12, 2018

Incident at 44NM BAGOTVILLE QC NDB (YBG) (Communication navigation surveillance/air traffic system)

Air traffic services (ATS) cleared a Chrono Aviation Beech 1900D (C-GXCA/NDL191) from Bagotville, QC (CYBG) to Nemiscau, QC (CYHH), headed northwest, to climb to FL240, behind a Kudlik Aviation Pilatus PC-12/47 (C-GODE/KUK707) from Quebec/Jean Lesage, QC (CYQB) to Kuujjuaq, QC (CYVP), which was established at FL230 and heading north, despite the insufficient lateral separation. The separation was re-established one minute after it had been lost.
Mise à jour: Rapport du BST no A18Q0197: C-GXCA, a Chrono Aviation Inc. Beech 1900D (NDL191), was cleared to climb to FL240 at departure from Bagotville (QC) north-westbound to Nemiscau, QC behind C-GODE, a Kudlik Aviation Inc. PC-12/47 (KUK707) which was level at FL230 and heading northbound from Quebec/Jean Lesage, QC (CYQB) to Kuujjuaq, QC (CYVP). A loss of separation occurred when the distance between the two aircraft was reduced to 3.5 miles at the same altitude, while the standard is 5 miles or 1 000 ft. The separation was re-established one minute after it had been lost.

November 28, 2018

Incident at 4530N / 07537W

A Lufthansa Boeing 747-400 (DABVM/DLH471) from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Frankfurt, Germany (EDDF) requested to return to CYYZ due to a technical issue, and requested to dump fuel. The aircraft dumped fuel starting at 0014Z, at FL310 on a heading of 265 degrees. The aircraft requested to descend during fuel dump. Fuel dump was completed at 0033Z at FL230. No emergency was declared. DLH471 landed at CYYZ at 0052Z without further incident.

September 26, 2018

Incident at MONTREAL CENTRE / ACC DE MONTRÉAL

Sharing of information on aircraft between an Embraer ERJ 170-200 LR operated by Republic Airlines (RPA3696), flying from Ottawa (CYOW), ON, to Newark (KEWR), NJ, climbing to FL220 and a De Havilland DHC-8-402 operated by Porter Airlines (POE467), flying from Toronto/Billy Bishop City (CYTZ), ON, levelling at FL230. RPA3696 received a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) and descended 500 feet.

March 20, 2018

Incident at 3NM SW MONTRÉAL / PIERRE ELLIOTT TRUDEAU INTL QC (CYUL)

At takeoff from Runway 24L, a KLM Royal Dutch Airlines Airbus A330-200 (KLM213) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Amsterdam, Netherlands (EHAM) was cleared for FL230, then initiated a left turn, violating standard instrument departure (SID) CYUL1. When the turn was noticed, KLM213 was instructed to maintain 5 000 ft since it was in conflict with an Air Transat Boeing 737-800 (TSC213) from Rio Hato, Panama (MPSM) to Montreal/Pierre Elliott Trudeau, QC (CYUL). Impact: TSC213 was guided for approximately 10 NM to avoid conflict.

February 17, 2018

Incident at 30NM MONTRÉAL INTL (MIRABEL) QC (CYMX)

After having been cleared to climb to FL220 and after having correctly read it back, an Air Canada Rouge Airbus A319-114 (C-FYJG/ROU1855) from Montreal/Pierre Elliott Trudeau, QC (CYUL) to Las Vegas, NV (KLAS) was seen climbing to FL230. No impact on operations.

June 21, 2018

Incident at TERRACE BC (CYXT)

UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Initial maintenance checks found no signs of any overheating or leaks around the engine or bleed air ducting fire wire routing. The right hand (R/H) engine fire loop was checked against the maintenance manual resistance limits and was found well out of limits. That along with no signs of overheating or bleed air leaks strongly point to a false fire warning. Fire loop was replaced.
TSB #A18P0084: C-FTJC, a Cessna 560 Encore aircraft operated by Carson Air, was conducting a flight from Terrace, BC (CYXT) to Vancouver Intl, BC (CYVR). While climbing thru 17 000 feet, the flight crew turned on the engine and wing anti-ice systems. Shortly thereafter, the flight crew observed a right engine fire warning light. The flight crew leveled the aircraft at FL230 and completed the engine fire light checklist. After reducing power on the right engine as per the checklist, the engine fire light extinguished. The flight crew completed the checklist and advised ATC that they would continue the flight to CYVR with reduced power on the right engine. A PAN PAN was declared, and the aircraft landed at CYVR without further incident.

April 4, 2018

Incident at 5028N / 11537W

A WestJet Encore de Havilland DHC-8-402 (WEN3116) from Kamloops, BC (CYKA) inbound to Calgary, AB (CYYC) was at FL230 and cleared to A120. A WestJet Boeing 737-700 (WJA128) from Vancouver, BC (CYVR) to Calgary, AB (CYYC) also inbound to Calgary on the same track was cleared from FL330 to FL240. WJA128 received a traffic alert and collision avoidance system (TCAS) Resolution Advisory and levelled off at FL250. Traffic was passed between aircraft. No impact to operations.

October 4, 2018

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

An American, corporately registered Raytheon Hawker 800XP (N171TR) from Toronto/Pearson International, ON (CYYZ) to Teterboro, NJ (KTEB) departed Runway 24R on the KEPTA2 standard instrument departure (SID) and was instructed to climb to FL230. N171TR was observed turning southeast without authorization and was instructed to fly heading 180.

July 13, 2018

Incident at 15NM AYLMER ON (YQO) VOR/DME (Communication navigation surveillance/air traffic system)

A Flightpath Charter Airways Inc. Embraer EMB 500 (KANT103) from Coleman A. Young International, MI (KDET) to Barrie-Orillia/Lake Simcoe, ON (CYLS) was Northbound at FL210 when the aircraft was instructed to climb to FL230 without prior coordination.

July 22, 2018

Incident at PEMBA

A Mesa Airlines Embraer EMB-170 (ASH6109) from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Houston Int'l, TX (KIAH) was unaware of the PEMBA FL240 crossing restriction. ASH6109 crossed PEMBA at approximately FL230. The controller turned ASH6109 right 15 degrees for traffic. No other operational issues.

June 20, 2018

Incident at RAKAM intersection

A corporately registered Cessna 525 (N85VR) from Watertown, NY (KART) to West Michigan, MI (KBIV) checked in climbing to FL330. The flight plan had been filed at FL240 and Concordia advised they had cleared N85VR to FL230 which was read back. The controller cleared N85VR to maintain FL230. No operational impact.

April 30, 2018

Incident at OMAPA intersection

While checking in with Grimsby, an American corporately registered Raytheon Aircraft Company Hawker 800XP (N159FM) from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Teterboro, NJ (KTEB) stated that it was climbing through 16,000 feet for FL250. N159FM had previously been cleared to maintain FL230 and a speed of 250 knots, which had been read back correctly, by the departure controller. The Grimsby controller re-cleared N159FM to maintain FL230. No operational impact.

Incident at OMAPA intersection

When checking in with the controller, an American corporately registered Raytheon Hawker 800XP (N159FM) from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Teterboro, NJ (KTEB) stated that they were climbing through 16000 feet for FL250. The aircraft had previously been cleared to maintain FL230 and a speed of 250 knots, by the departure controller, which had been read back correctly. Grimsby re-cleared the aircraft to maintain FL230. No conflict or operational impact.

March 28, 2018

Incident at 4252N / 07951W (Communication navigation surveillance/air traffic system)

A WestJet Boeing 737-800 (WJA2604) from Toronto/Lester B. Pearson, ON (CYYZ) to Belize City, Belize (MZBZ) and a WestJet Boeing 737-700 (WJA2518) from Toronto/Lester B. Pearson, ON (CYYZ) to Providenciales, Turks and Caicos (MBPV) were both given clearance above FL230 by next sector without authorization. No impact to operations.

March 19, 2018

Incident at 16NM TORONTO / LESTER B. PEARSON INTL ON (CYYZ)

An American corporately registered Gulfstream Israel Gulfstream 200 (N212U) on a flight from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Teterboro, NJ (KTEB) checked in with the controller cleared to FL250. The previous controller had cleared the aircraft to FL230 which was read back. There was no conflict as N212U was only climbing through 12 000 feet. The controller re-cleared N212U to maintain FL230.

February 28, 2018

Incident at 4447N / 07610W

A Porter Airlines de Havilland DHC-8-402 (C-GLQC/POE232) on a flight from Ottawa/MacDonald-Cartier Int'l, ON (CYOW) to Toronto/Billy Bishop, ON (CYTZ) was authorized and correctly readback a climb to FL220. The aircraft was however observed climbing to FL230. No impact to operations.

February 17, 2018

Incident at ARVIE intersection

During its descent to Montreal/Pierre Elliott Trudeau Int'l, QC (CYUL), a WestJet Encore de Havilland DHC-8-402 (WEN8989) on a flight from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Montreal/Pierre Elliott Trudeau Int'l, QC (CYUL) informed the controller that it had lost vertical navigation (VNAV) between EPMOK and ARVIE, between FL230 and FL200, but that area navigation (RNAV) was not affected. No impact.

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