Air Transat Flight 961

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Air Transat Flight 961
Airbus A310-308, Air Transat JP317426.jpg
C-GPAT, the aircraft involved in 2004
Accident
DateMarch 6, 2005 (2005-03-06)
Summary Structural failure of the rudder in flight due to a stress fracture
Site Juan Gualberto Gomez Airport, Cuba
Aircraft
Aircraft type Airbus A310-308
Operator Air Transat
IATA flight No.TS961
ICAO flight No.TSC961
Call signTRANSAT 961
Registration C-GPAT [1]
Flight origin Juan Gualberto Gomez Airport, Varadero, Cuba
Destination Jean Lesage Airport, Quebec, Quebec, Canada
Occupants271
Passengers262
Crew9
Fatalities0
Injuries0
Survivors271

Air Transat Flight 961 was an Air Transat flight from Varadero, Cuba to Quebec City, Canada on March 6, 2005. The aircraft experienced a structural failure in which the rudder detached in flight. The flight crew were able to regain enough control of the aircraft to return safely to Varadero. As of March 2020, the Airbus A310-308 is no longer in service. [2] [3]

Contents

The investigation that followed determined that the manufacturer's inspection procedure for the composite rudder was not adequate. [4] Inspection procedures for composite structures on airliners were changed because of this accident.

Event

Flight 961 was a routine scheduled commercial flight carrying 262 passengers and 9 crew from Varadero, Cuba to Quebec City on March 6, 2005. At 2:48 am EST, flight 961 took off from Cuba. The flight climbed to its initial cruising altitude of 35,000 feet (11,000 m) and the flight attendants began the inflight service. Then, suddenly, at 3:02 am, the aircraft began a dutch roll after a bang shuddered the aircraft violently. The plane climbed until the crew overcame the aircraft upset by descending. The crew attempted to divert to Fort Lauderdale-Hollywood International Airport but Air Transat operations told the crew that returning to Varadero would be the more prudent option. There were no warnings on the flightdeck indicating a rudder problem or a yaw damper problem. The plane landed safely at 4:19 am. Upon parking at the gate, the crew did another walk around inspection to narrow down the cause of the accident. The inspection revealed that the entire rudder had broken away from the vertical stabilizer of the aircraft. [4]

Cause

Although most of the cockpit voice recorder and flight data recorder were erased due to the long span of time in which the accident occurred, there were several findings as to the cause of the accident. The aircraft probably had a stress fracture in the tail that went unnoticed for several flights prior to the accident flight and the A310 does not have a mechanism in the tail that suspends the growth of the fracture(s). [4]

The Transportation Safety Board found that inspection program of composite rudders was inadequate. [5] In particular, the durability of the rudder was questioned. Air Transat Flight 961 provided new insights into rudder problems on Airbus A300-600, Airbus A300-600R, and Airbus A310 aircraft. [6]

Aftermath

The aircraft was repaired and operated until its ultimate retirement. The accident aircraft, fin number 303, is currently retired by Air Transat. The dated aircraft was replaced by the airline with the more modern and efficient Airbus A321neo. All Airbus A310 aircraft were retired from Air Transat as of March 31, 2020.

See also

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References

  1. "Canadian Civil Aircraft Register (C-GPAT)". Transport Canada.
  2. "Canadian Civil Aircraft Register: Aircraft History Details". Transport Canada. 2009-11-18. Retrieved 2017-01-17.
  3. "Flight Activity History (C-GPAT)". FlightAware.com. 2017-01-17. Retrieved 2017-01-17.
  4. 1 2 3 "Aviation Investigation Report A05F0047, Loss of Rudder in Flight, Air Transat Airbus A310-308 C-GPAT, Miami, Florida, 90 nm S, 06 March 2005" (PDF). Transportation Safety Board of Canada (TSB). 2007-11-22. A05F0047. Retrieved 2008-08-26.
  5. "Airbus inspection program inadequate at time of incident: Board". Toronto Star . November 23, 2007.
  6. "A310 Loses Rudder, Prompts Fleetwide Inspections, Inquiry". Aviation Today. March 21, 2005. Archived from the original on August 13, 2016. Retrieved July 23, 2016.