January 25, 2000

Incident at near Sherbrooke (QC)

Initial information from T.S.B. Initial Notification (#A00O0015): The Boeing 737-217 aircraft was in cruise flight at flight level 330, in the Sherbrooke (Québec) area, when the flight crew reported encountering severe turbulence. The turbulence persisted following a flight level change and the flight diverted back to Toronto where it landed without further incident. There was no reported damage to the aircraft or injury to the occupants on board. 63 S.O.B. -- five (5) crew; 58 passengers.

April 10, 2000

Incident at Halifax Intl

CDN946 A320 IFR Toronto to Halifax on final for runway 15 flight experienced Severe Turbulence and executed missed approach and subsequently diverted to Bangor. After re-establishing contact with Moncton ACC, pilot advised that he had almost lost control of the aircraft due to the Severe Turbulence. Pilot had been advised of the possibility of turbulence after approach clearance had been issued, just prior to changeover to tower frequency. TSB Case Closed with more to follow. TSB Update: The Operator indicated that the aircraft encountered significant windshear on short final and it was the Windshear that caused the crew to overshoot. The aircraft's Automatic Communication and Reporting System (ACARS) did not indicate that a severe Turbulence Maintenance check was necessary and none has been carried out. The FDR has been forwarded to the TSB Engineering Labratory. More to follow. TSB file # A00A0061

June 14, 1998

Incident at 90 milles à l'ouest de Dorval

During an IFR flight from Toronto to Halifax, and when he was at FL330, the pilot of flight CDN946 informed the controller that the aircraft had a pressurization problem. An immediate descent and rerouting to Dorval were requested. The aircraft landed safely at 2322Z. UPDATE: The exhaust valve, controller and separator were replaced. The aircraft was returned to service. Lors d'un vol IFR de Toronto vers Halifax et alors qu'il se trouvait au FL330, le pilote du vol CDN946 a avisé le contr,leur que l'aéronef avait un problème de pressurisation. Une descente immédiate ainsi qu'un réacheminement vers Dorval ont été demandés. L'aéronef s'est posé sans problème à 2322Z. MISE À JOUR: Le clapet d'évacuation, le contr,leur et le séparateur ont été remplacés. L'aéronef a été remis en service.

June 7, 1997

Incident at TORONTO / LESTER B. PEARSON INTL ON (CYYZ) (Aerodrome - runway or taxiway surface condition)

Air Canada 872 departed runway 24L and reported rubber debris midway runway 24L abeam "d 2". "Canadian " operations in Halifax advised their aircraft (CDN946) who was inbound to Halifax. Use of the runway was delayed :21 minutes while maintenance vehicle picked up rubber debris. Approximately 9 aircraft delayed.

Incident at HALIFAX / STANFIELD INTL NS (CYHZ)

Information relayed via Toronto ACC that an aircraft departing after CDN946 noticed rubber on the runway. Canadian dispatch advised and aircraft carried on to Halifax. At 2318z the pilot declared an emergency. CFR on standby for landing on runway 06 at Halifax. Aircraft landed without incident at 2331Z TSB case closed. Update: Maintenance found that the tread on the # 1 tire and separated during the take-off. The following areas sustained minor damage: left hand trailing edge flap and foreflap. Mid flap lower surface and leading edge skin. Main gear door trailing edge skin and support angle. Temporary field repairs were made and aircraft ferried to repair facility.

March 9, 1993

Incident at ST JOHNS

B737 CDN946 C-GQBB - WHILE ON APPROACH, PILOT OF CDN946 DISCOVERED PROBLEM WITH "LEADING EDGE DEVICE" EXECUTED A MISSED APPROACH. UNABLE GREATER THAN 15 DEGREE FLAPS AND UNABLE GREATER THAN 15 DEGREE BANK. EMERGENCY DECLARED. THE A/C LANDED SAFELY AT 0249Z. TIME = 0230Z. ACTION = MAH-YT.