At 0010Z, a British Airways Boeing 747-400 (GCIVI/BAW20R) from Chicago/OHare, IL (KORD) to London/Heathrow, United Kingdom (EGLL) picked up the signal of an emergency locator transmitter (ELT) from FL350, 270/025NM from the La Tuque, QC (YLQ) non-directional beacon (NDB), up to 090/20NM from the YLQ NDB, at 0015Z. Joint Rescue Coordination Centre (JRCC) Trenton was notified.

An Emergency Locator Transmitter (ELT) signal was reported at 0224Z for 3 minutes. The signal strength was strong, and was heard 40NM South of Mont-Joli, QC (CYYY) at FL350. The Joint Rescue Coordination Centre (JRCC) Trenton notified. No impact to operations.

An Air Canada Airbus A320-211 (C-FTJQ/ACA948) from Montreal/Trudeau, QC (CYUL) to Pointe-à-Pitre, Guadeloupe (TFFR) asked the Boston centre if it could return to CYUL due to a mechanical problem. Once it was 20 NM from CYUL, ACA948 declared an emergency. The aircraft landed without incident at 1641Z.
AOR-247060-V1 Update: While inbound south of CYUL, an Air Canada Airbus A320-211 (C-FTJQ/ACA948) from Montreal/Trudeau, QC (CYUL) to Pointe-à-Pitre, Guadeloupe (TFFR) declared an emergency. There was a controls problem. The aircraft landed, then came to a stop on the runway, where emergency vehicles were present. The aircraft then cleared the runway on its own at 1653Z. Impact on operations: ACA809 was delayed by 10 minutes.
Update TSB Report #A19Q0037: C-FTJQ, an Airbus 320-200 operated by Air Canada as flight AC948 with 6 crewmembers and 89 passengers on board was en route from Montreal/Pierre Elliott Trudeau Intl (CYUL), QUE, to Le Raizet - Pointe-à-Pitre, Guadeloupe, France (TFFR). During cruise at FL350 near Bermuda, the flight crew received an ECAM message with the FLT CONTROL page showing the left spoilers in the UP position. After discussion with the company, the decision was made to return to CYUL. When the aircraft was about 20 nm south of CYUL, the crew declared a PAN PAN and carried out an uneventful landing on Runway 24L at 16 h 43Z with ARFF on standby. Spoiler 1R actuator was replaced in accordance with the Aircraft Maintenance Manual and the aircraft was returned to service following a successful operational test.

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

A Philippine Airlines Boeing 777-300 (RPC7782/PAL116) from Manila, Philippines (RPLL) to Vancouver, BC (CYVR) was at FL350 and started descending without clearance. Controller noticed and then cleared the aircraft to FL290. No impact to operations.

A Delta Air Lines Boeing 767-300 (DAL96) on a flight from Detroit Metro/Wayne County, MI (KDTW) to Paris/Charles de Gaulle, France (LFPG) cleared to climb to FL350 reported a traffic alert and collision avoidance system (TCAS) resolution advisory (RA). Traffic had been passed as a Delta Air Lines Boeing 757-200 (DAL737) on a flight from Boston Intl, MA (KBOS) to Los Angeles Intl, CA (KLAX) in opposite direction at FL360.

A Delta Airlines Boeing 737-900 (DAL2713) from Portland, OR (KPDX) to John F. Kennedy, NY (KFJK) East Bound at FL350 reported an emergency locator transmitter (ELT) signal passing over London, ON (CYXU). Other aircraft reported the ELT in the vicinity of CYXU. Joint Rescue Coordination Centre (JRCC) Trenton notified. No further reports received.

A Sunwing Airlines Boeing 737-800 (SWG508) from Cancun, Mexico (MMUN) to Toronto/Lester B. Pearson, ON (CYYZ) that was inbound declared an emergency due to partial hydraulic failure. Emergency equipment requested. Aircraft landed safely and taxied to the apron without further incident.
Update TSB #A19O0031: C-FLSW, a Boeing 737-800 aircraft operated by Sunwing Airlines, was conducting flight SWG508 from Cancun Intl (MMUN), Mexico to Edmonton Intl (CYEG), AB with 6 crew members and 177 passengers on board. During the climb to cruising altitude after the departure from MMUN, the flight crew received a HYDRAULIC SYS B ENG2 LOW PRESSURE indication. Subsequently, when the aircraft reached its cruising altitude of FL350, the corresponding fluid quantity began to drop. The flight crew contacted the operator’s Operational Control Centre (OCC) after following the QRH procedure, and the decision to divert to CYYZ was made. Upon being handed over to Toronto Centre (CZYZ) during the descent to CYYZ, the flight crew declared a PAN PAN. The aircraft proceeded to land uneventfully with ARFF standing by. After the landing, ATC requested that the aircraft hold its position on Taxiway H, whereupon ARFF reported continuous fluid leakage from the number 2 engine. The number 2 engine was shut down, and the aircraft taxied to the infield terminal on one engine. The operator’s maintenance replaced the number 2 Engine Driven Pump (EDP) and, after an operational check, the aircraft was returned to service.

TSB Report #A19F0040: C-GEOU, a Boeing 767-300 aircraft operated by Air Canada rouge, was conducting flight ROU1852 from Las Vegas/McCarran Intl (KLAS), NV to Toronto/Lester B. Pearson Intl (CYYZ), ON with 8 crew members and 282 passengers on board. During cruise flight at FL350 approximately 90 nm NNW of Amarillo/Rick Husband Intl (KAMA), TX, the cabin crew reported smoke coming out of a coffee maker in the forward galley. A cabin crew member discharged a fire extinguisher in the affected area, and notified the flight crew. The QRH was executed, and after evaluating the situation, the decision to continue to destination was taken. The aircraft landed at CYYZ without further incident. An entry was made in the log book, and the event was captured in the air operator’s Safety Management System (SMS).

A Kuwait Airways Boeing 777-333ER (9KAOH/KAC117) from Kuwait City, Kuwait (OKBK) to New York, NY (KJFK) requested and was issued clearance to FL350, climbed to FL360, and descended back to FL350. No traffic. No impact on operations.

TSB Report #A19F0021: C-GTQX, a Boeing 737-800 aircraft operated by Air Transat, was conducting flight TSC703 from Roatán/Juan Manuel Gálvez Intl (MHRO), Honduras to Toronto/Lester B. Pearson Intl (CYYZ), ON with 6 crew members and 161 passengers on board. During cruise flight at FL350, approximately 50 nm south southeast of Pittsburgh Intl (KPIT), PA, the aircraft experienced a pressurization problem, which prompted the flight crew to don their oxygen masks. An emergency was declared, and the flight crew executed a rapid descent to 10 000 feet. Once at 10 000 feet, the flight crew regained control of the pressurization, and cancelled the emergency. The flight continued to destination and landed at CYYZ without further incident. There were no injuries. The operators maintenance is troubleshooting the problem.

A WestJet Boeing 737-700 (WJA702) from Vancouver, BC (CYVR) to Toronto/Pearson, ON (CYYZ) reported a strong emergency locator transmitter (ELT) signal for approximately 1 minute at FL350, eastbound, in the vicinity of Winnipeg. The joint rescue coordination centre (JRCC) Trenton was advised.

A WestJet Boeing 737-800 (WJA1416) from Calgary Intl, AB (CYYC) to Orlando Intl, FL (KMCO) switched to Salt Lake City (SLC) for further instructions to climb to FL350. The switching of instructions were meant for a WestJet Boeing 737-700 (WJA1460) from Calgary Intl, AB (CYYC) to Las Vegas Intl, NV (KLAS). The read back error was not identified and WJA1416 initiated a climb from FL330 to FL350 unexpectedly. No other impact on operations.

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

A Delta Air Lines Boeing 767-300 (N189DN/DAL474) on a flight from New York/John F. Kennedy, NY (KJFK) to Venice/Marco Polo, Italy (LIPZ) had smoke and fumes in cockpit. Flight deviated 5NM left of course and descended to FL275 from FL350 and turned back to St. Johns Intl, NL (CYYT).

A Saudi Arabian Airlines Boeing 777-300 (SVA020) on a flight from New York/John F. Kennedy Intl, NY (KJFK) to Jeddah, Saudi Arabia (OEJN) reported moderate to severe turbulence at FL350. The aircraft descended to FL330 and reported continuous moderate turbulence but remained at that level. Halifax (HZ) flight information centre (FIC) advised, no impact on the operation.

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

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

An Air Canada Rouge Airbus A321-211 (ROU1536) from Toronto/Lester B. Pearson, ON (CYYZ) to St. Johns, NL (CYYT) reported pressurization problem. Diverted to Halifax/Stanfield, NS (CYHZ). No emergency reported. Landed no issue. No impact on operations.
Update TSB #A19A0056: C-FJQD, an Airbus A321-211 aircraft operated by Air Canada rouge LP was conducting flight ROU1536 from Toronto Lester B. Pearson Intl (CYYZ), ON to St. John’s Intl (CYYT), NL. During cruise at FL350, 35 nm NW of Halifax Stanfield Intl (CYHZ), NS the flight crew received a fault message of an aircraft air conditioning PAC fault 1 and 2. One of the PACs was already deferred as per the MEL and the subsequent fault caused a loss of pressurization. The crew conducted the required checklists, declared a PAN PAN, and requested a descent and a diversion into CYHZ where it landed without incident.

An Air France Boeing 777 300 series (AFR639) from Houston, TX (KIAH) to Paris, France (LFPG) reported severe turbulence and climbed from FL350 to FL360.

A WestJet Boeing 767-338 (C-GOGN/WJA4) from Gatwick, England (EGKK) to Toronto/Lester B. Pearson, ON (CYYZ) was at FL330. The aircraft requested FL350, and was given a clearance (CLX) by air traffic control (ATC) for FL340 and issued requested level not available. Shortly after, WJA4 was observed at FL347 before the aircraft returned back down to cleared level of FL340. There was traffic at FL350, 6 minutes behind.

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

An Air France Airbus A380-800 (FHPJI/AFR006) from Paris/Charles de Gaulle, France (LFPG) to New York/John F. Kennedy, NY (KJFK) climbed from FL350 to FL362, due to turbulence from an Aer Lingus Ltd. Boeing 757-200 (EILBR/EIN11J) from Dublin, Ireland (EIDW) to Philadelphia, PA (KPHL), without clearance.

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

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

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

An Icelandair EHF Boeing 757-200 (TFISJ/ICE688) from Orlando, FL (KMCO) to Keflavík, Iceland (BIKF) declared MAYDAY and requested to land at the nearest aerodrome. Air traffic services (ATS) cleared the aircraft to divert to the Canadian Forces Base in Bagotville, QC (CYBG) and descend. At 0201Z, ICE688 indicated that it had a cracked windshield but that the situation was under control. ICE688 landed on Runway 11 at CYBG at 0215Z. Emergency services were deployed. No other impact on operations.
Update: TSB Report #A18Q0172: TF-ISJ, an Icelandair Boeing 757-200 (ICE688) with 7 crew members and 155 passengers on board, was on an IFR flight from Orlando Intl (Florida) to Keflavik (Iceland). While the aircraft was approximately 50 miles southeast of the Bagotville, Quebec (CYBG) airport, at FL350, the pilot-in-command noticed the presence of arcing in the right-hand corner of the left forward window (LFWD WINDOW). The windshield heat was turned off and shortly afterwards, a loud cracking sound was heard. The flight crew members put on their oxygen masks and declared MAYDAY due to the crack in the front-left windshield and conducted an emergency descent. When it passed FL250 and noticed that the cabin pressure had remained constant, the emergency descent was rejected. The pilot-in-command took the oxygen mask off, but the first officer kept it on as a precaution. A normal descent was followed and the flight crew requested to be diverted to CYBG, where the aircraft landed without any problems.

After giving out clearance to descend to FL350, air traffic control (ATC) did not receive a clearance read-back. An Air Transat Boeing 737-800 (TSC774) from Vancouver Intl, BC (CYVR) to Montreal/Pierre Elliott Trudeau, QC (CYUL) was seen in descent at FL347. When questioned, the aircraft mentioned that he was descending to FL340. No impact on operations.

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

A Jet Airways (India) Limited Boeing 777-300 (JAI233) on a flight from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Amsterdam, Netherlands (EHAM) reported severe turbulence at FL360 and descended to FL350. No reported injuries.

TSB Report #A18P0188: C-FLHJ, a Boeing 737-400 aircraft operated by Flair Airlines, was conducting flight FLE613 from Vancouver Intl (CYVR), BC to Edmonton Intl (CYEG), AB. As the flight crew expected turbulence passing FL310 during the climb to cruising altitude after the departure from CYVR, the FASTEN SEAT BELT sign was turned on and the captain instructed the cabin crew to be seated. Shortly thereafter when the aircraft was on autopilot, the aircraft pitched up 20° and the airspeed increased by 40 kts. The aircraft rolled 45° to the right, which required full left aileron deflection, then rolled 30° to the left, which was corrected with full right aileron deflection. The VSI displayed a speed of over 6000 fpm up. After a subsequent loss of 25 KIAS, the aircraft leveled off at FL350 with significant ongoing buffeting. The flight crew elected to leave the autopilot on the whole time, and let it make the corrections. There were no injuries; however, 14 passengers became ill as a result of the turbulence. The operator reported that the autopilot performed adequately, did not disengage throughout the event, and that no aircraft limitations were exceeded. An SMS report was filed.

An Air Canada Airbus A320 (ACA229) from Calgary International, AB (CYYC) to Vancouver International, BC (CYVR) checked in with the Vancouver (YVR) centre and levelled off at FL350 when cleared to FL360. The controller had the aircraft climb to FL360. No impact to operations.

An Icelandair EHF Boeing 757-200 (TFLLX/ICE696) departed from Vancouver Int'l, BC (CYVR) to Keflavik Int'l Airport, Iceland (BIKF). Approximately 130 miles east of CYVR, the aircraft declared emergency with left engine overheating. The aircraft's engine was shut down engine and it returned to CYVR. Tower initiated emergency stand by. It landed on Runway 08R without incident at 2347Z. No operational impact.
Update TSB Report #A18P0079:TF-LLX, a Boeing 757-200 aircraft operated by Icelandair, was conducting flight ICE696 from Vancouver Intl, BC (CYVR) to Reykjavík/Keflavík, Iceland (BIKF) with 6 crew members and 120 passengers on board. As the flight was about to reach its assigned flight level of FL350 after the departure from CYVR, the flight crew declared an emergency due to a left engine (Rolls Royce RB211-535E4-37/24B) overheat message. The QRH was executed and a return to CYVR was requested. The flight crew shut the left engine down as the overheat warning did not go out with the thrust lever at idle. The aircraft landed without further incident at 2350Z with ARFF on standby. After the landing, maintenance personnel performed an overweight inspection and no issues were found. The left engine was inspected, and high pressure bleed ducts HP2 and HP6, as well as heating system (HS) pilot were replaced. Following testing and run-up in accordance with B757 Aircraft Maintenance Manual 36-11-01, the aircraft was released back to service.

At 2336Z, the Cleveland Air Route Traffic Control Center (ZOB) called to advise that a Sunwing Airlines Inc. Boeing 737-800 (SWG439) from Punta Cana Intl, DR (MDPC) to Toronto/Lester B. Pearson Intl, ON (CYYZ) had lost its primary flight display and would be requesting priority handling. At 2351Z, the ZOB controller advised Grimsby that SWG439 had an emergency (PAN PAN). Priority was given to SWG439 and they required no further assistance. SWG439 landed on Runway 06L at 0010Z. No operational impact.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Left hand (L/H) Air Data Inertial Reference Unit (ADIRU) was replaced and function checks were carried out. Checked serviceable and fault was cleared. Flight controls checked for proper operation. No fault was found. Aircraft was returned to service.
Update TSB #A18F0236: C-GMXB, a Boeing 737 MAX 8 aircraft operated by Sunwing Airlines, was conducting flight SWG439 from Punta Cana Intl (MDPC), Dominican Republic to Toronto/Lester B. Pearson Intl (CYYZ), ON with 6 crew members and 176 passengers on board. While the aircraft was in cruise flight at FL350, the flight crew received erroneous indications on the captains instruments. As a precaution, the flight crew elected to descend to FL250 in order to get out of Instrument Meteorological Conditions (IMC). Since the stand by and the first officers instruments were functioning normally, control of the aircraft was handed to the first officer. As the aircraft passed through FL280, approximately 50 nm northwest of Washington/Dulles Intl (KIAD), VA, the weather radar and TCAS both failed. The flight crew declared a PAN PAN and executed the QRH checklists. Subsequently, the left side IRS fault light illuminated. The flight continued to destination and landed without further incident. The operators maintenance replaced the left Air Data Inertial Reference Unit (ADIRU) and performed functional checks to confirm that the fault was cleared. The aircraft was returned to service.

An Air Canada Boeing 737-8 (C-FSEQ/ACA778) from Los Angeles Intl, CA (KLAX) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) descending to cleared level FL350 reported and responded to a traffic alert and collision avoidance system resolution advisory (TCAS RA) as they descended through FL354. Crossing traffic level as FL340 and traffic information had been passed.

An Air Canada Rouge Boeing 767-316 (C-FMLV/ROU1958), from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Porto, Portugal (LPPR) declared a PAN PAN in UL Airspace due to a hydraulic system issue and elected to return to CYYZ. Aircraft landed Runway 23 at 0446Z and taxied to the gate after inspected by Aircraft Rescue and Fire Fighting (ARFF). No impact to operations.
Update TSB Report #A18O0100:C-FMLV, a Boeing 767-300 aircraft operated by Air Canada rouge, was conducting flight ROU1958 from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Porto/Francisco Sá Carneiro, Portugal (LPPR). Shortly after reaching its cruising altitude of FL350, the flight crew received a L HYD QTY EICAS message. QRH procedures were executed and a hydraulic leak was identified. The flight crew elected to divert back to CYYZ and declared a PAN PAN as a precaution. The aircraft performed an uneventful overweight landing with ARFF standing by, and came to a stop on the runway. The aircraft was checked by ARFF before it taxied to the gate. The operator?s maintenance identified the leak coming from the left hydraulic system pressure switch coupling. Hydraulic seals were replaced, and after subsequent operational tests, the aircraft was returned to service.

TSB Report#A18F0127: C-FYJD, a Boeing 737-800 aircraft operated by Sunwing Airlines, was conducting flight SWG516 from Cancún Intl, Mexico (MMUN) to Toronto/Lester B. Pearson Intl, ON (CYYZ) with 6 crew members and 162 passengers on board. As the flight was being vectored around weather during cruise flight at FL350, just to the east of Pittsburgh Intl, PA (KPIT), the flight crew was informed of a strong electrical burning smell from an aft lavatory. Approximately 20 minutes later, a PAN PAN was declared and a direct routing to CYYZ was requested. The aircraft then landed without further incident on Runway 33L. The flight crew coordinated the taxi in with ARFF following as precaution. The operator?s maintenance inspected the lavatory and found no faults. The aircraft was returned to service.
UPDATE from Airworthiness: A Civil Aviation Safety Inspector (CASI) looked into this occurrence. Strong electrical burning smell coming from the right hand (R/H) aft lavatory. R/H aft lavatory was inspected in accordance with Aircraft Maintenance Manual: no indication of anything burnt or melted, all lighting ops check completed with no faults found, toilet ops completed with no faults found, water heater ops check completed with no faults found, and fume inspection c/o no faults found. Aircraft checked serviceable and returned to service. A service difficulty report (SDR) was submitted.
A Sunwing Airlines Inc. Boeing 737 800 (SWG516) from Cancún/Quintana Roo, Mexico (MMUN) to Toronto, ON (CYYZ) had a burning smell in the cockpit and requested emergency equipment on standby. Priority handling was given to SWG516. Flight landed Runway 33L uneventfully at 2316Z and exited runway. Aircraft Rescue and Fire Fighting (ARFF) on standby. Minor impact to arrivals.

A loss of separation occurred between a Jet Airways (India) Ltd. Boeing 777-300 (JAI233) from Toronto/Pearson International, ON (CYYZ) to Amsterdam Airport Schiphol, the Netherlands (EHAM) and a Miami Air Int'l, Inc. Boeing 737-800 (BSK294) from Gander International, NL (CYQX) to Minneapolis/Saint Paul International, MN (KMSP) in the vicinity of the UDMUG intersection. JAI233 was climbing through a FL336 to a cleared altitude of FL350 and BSK294 was at FL340.

UPDATE: TSB Report#A18O0025: UAL1712, a Boeing 737-800 aircraft, was conducting a flight from Newark/Liberty Intl, NJ (KEWR) to Santa Ana/John Wayne-Orange County, CA (KSNA). C-GBLB, a Bombardier BD-700-2A12 Global 7000 aircraft, was conducting local flight BBA702 from Windsor, ON (CYQG). As UAL1712 was in level flight at FL320, BBA702 had been cleared to climb to FL350. Separation was not assured and Air Traffic Control detected the conflict as BBA702 was climbing through FL306. BBA702 was immediately re-cleared to FL300 before a loss of separation occurred. The closest proximity between the 2 aircraft was 1.5 nm laterally and 1400 feet vertically in an area where 5 nm or 1000 feet is required.
A loss of separation occurred between a Bombardier BD-700-2A12 (C-GBLB/ BBA702) on a flight from Windsor, ON (CYQG) and landing at Windsor, ON (CYQG) climbing through FL306 and cleared to FL350 with a United Airlines Boeing 737 823 (N77530/ UAL1712) from Newark, NJ (KEWR) to Santa Ana, CA (KSNA) at FL320. BBA702 was re-cleared to FL300.

TSB Report #A18F0255: C-FKAU, a Boeing 777-300 aircraft operated by Air Canada, was conducting flight ACA90 from Toronto/Lester B. Pearson Intl (CYYZ), ON to São Paulo/Guarulhos Intl (SBGR), Brazil. During cruise flight at FL350, the flight crew reported severe turbulence that lasted approximately 2 minutes, with altitude excursions. There were no reported injuries, nor any damage to the aircraft. The flight continued to destination without further incident. Maintenance personnel performed the severe or unusual turbulence inspection, and no faults were found.

TSB Report #A18F0306: C-FWGH, a Boeing 737-800 aircraft operated by Sunwing Airlines, was conducting flight SWG783 from Río Hato/Scarlett Martínez Intl (MPSM), Panamá to Toronto/Lester B. Pearson Intl (CYYZ), ON. During cruise flight at FL360 in the vicinity of Cayo Largo/Vilo Acuña Intl (MUCL), Cuba, the flight crew received a TCAS TA, and an aircraft was seen climbing towards them. Subsequently, a TCAS RA – CLIMB sounded seconds later, which was immediately complied with by the flight crew up to FL366, until clear of conflict. SWG783 then continued to destination uneventfully. The conflicting traffic was observed to be as close as 400 feet below on TCAS, and had been cleared to FL350 by Havana Center; however, it continued the climb through FL350. ATC reported that the aircraft involved was a Falcon 900EX, registration YV2486.

TSB Report #A18F0290: C-FMZU, an Embraer 190-100 aircraft operated by Air Canada, was conducting flight ACA592 from Houston/George Bush Intercontinental (KIAH), TX to Toronto/Lester B. Pearson Intl (CYYZ), ON with 4 crew members and 65 passengers on board. Passing FL280 during the climb to cruising altitude, approximately 110 nm northeast of KIAH, the flight experienced continuous moderate turbulence. As the flight passed through FL300, the turbulence became severe and the flight crew observed the vertical speed in excess of 2500 feet per minute. A higher level was requested, however it was denied by ATC due to heavy traffic at FL320. The flight crew levelled off at FL310 in continuous moderate turbulence, and subsequently climbed to FL350 a short while later. The operator’s maintenance carried out a phase one inspection and found no faults. The aircraft was returned to service.

TSB Report#A18F0110: N692CA, a Bombardier CL-600-2D24 (CRJ900) aircraft operated by SkyWest Airlines, was conducting flight SKW4137 from Philadelphia Intl, PA (KPHL) to Minneapolis-St. Paul Intl/Wold- Chamberlain, MN (KMSP). C-GHLT, a Boeing 767-300 aircraft operated by Air Canada rouge, was conducting flight ROU1804 from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Montego Bay/Sangster Intl, Jamaica (MKJS) with 8 crew members and 234 passengers on board. While established in level flight at FL350 approximately 20 mns after the departure just west of Erie, PA, ROU1804 accepted and read back a clearance to climb to FL360 that was intended to ROU1802, which was on the same frequency. The mistake was not cognitively identified by ATC, and ROU1804 subsequently received a TCAS TA; the flight crew responded by reducing the rate of climb in order to mitigate the conflict. The separation between the two aircraft eroded to 2.72 nm laterally and 600 feet vertically.

An American corporately registered Raytheon Aircraft Company hawker 800XP (N535RV) from St. John's, NL (CYYT) to Brussels, Belgium (EBBR) climbed from FL350 to FL390 without clearance. The pilot advised they inadvertently followed the flight plan and not the Air Traffic Control (ATC) clearance. No traffic.

An Air Canada Rouge Boeing 767-300 (ROU1917) was en route from Lisbon, Portugal (LPPT) to Toronto/Lester B. Pearson, ON (CYYZ) at a flight level of 35 000 feet (FL350). The estimate was passed from New York (NY) Oceanic to Moncton High via telephone and New York (NY) passed a JEBBY time of 1653Z. The Moncton Controller read back a time of 1753Z and the New York (NY) controller verified the readback as correct. The aircraft progressed to JEBBY at a time of 1653Z and it was at that time that the error was noticed. Separation was not affected and the New York (NY) supervisor was notified via telephone. Audio tapes were reviewed and the Moncton Controller was advised of the findings.

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

An Air Canada Airbus A320-200 (ACA273) on a flight from Toronto/Lester B. Pearson Int'l, ON (CYYZ) to Winnipeg/James Armstrong Richardson Int'l, MB (CYWG) at FL360 westbound reported a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) to climb when passing a Flair Airlines Boeing 737-400 (FLE110) on a flight from Winnipeg/James Armstrong Richardson Int'l, MB (CYWG) to Hamilton, ON (CYHM) at FL350 eastbound. ACA273 advised they had climbed 180 feet before returning to FL360. Neither aircraft were observed deviating from their altitudes and traffic information had been passed to both aircraft. No impact to operations.

TSB Report#A18F0045: C-FIVK, a Boeing 777-200 aircraft operated by Air Canada, was conducting flight ACA46 from Toronto/Lester B. Pearson Intl, ON (CYYZ) to Mumbai/Chhatrapati Shivaji Intl, India (VABB) with 15 crew members and 228 passengers on board. During cruise at FL350 over the Atlantic ocean, the cabin crew reported a lavatory smoke indicator. White smoke could be observed coming from the aft wall panel due to ballast producing heat. The flight crew consulted with the operator?s maintenance and disconnected the cannon plugs to both aft lavatories. The ballast eventually cooled down and the flight continued to destination without further incident.

An American, corporately registered British Aerospace BAE 125 1000A (N982LC) from Whitehorse/Erik Nielsen International, YT (CYXY) to Greater Rochester International, NY (KROC) departed with an initial clearance from the KD sector to FL350, due to traffic. At 1550Z, the KD controller requested a present position report. The reported latitude and longitude did not coincide with the flight planned route. After another attempt at a present position report (PP), the pilot reported navigational issues and requested to be cleared via very high frequency omnidirectional ranges (VORs). At approximately 1630Z, the flight appeared on the radar and was 9NM off course from the cleared route via VORs.

An Air Canada Boeing 777-300 (ACA879) from Zurich, Switzerland (LSZH) to Toronto/Lester B. Pearson International, ON (CYYZ) was authorized for and correctly read back a clearance to descend to F340. A few moments later, an Air China Ltd. Boeing 787-9 (B1466/CCA879) from Beijing Capital International, China (ZBAA) to Montreal/Pierre Elliott Trudeau International, QC (CYUL) was observed descending through FL350 for FL340. When questioned, CCA879 thought the authorization was intended for them. No operational impact.