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Air Transat Flight 961

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Air Transat Flight 961

Air Transat Flight 961
C-GPAT, the aircraft involved, shown at Rome Fiumicino in 2011 (prior to the incident)
Incident summary
Date March 6, 2005 (2005-03-06)
Summary Structural failure of the Rudder in flight due to a stress fracture
Site Juan Gualberto Gomez Airport, Cuba
Passengers 262
Crew 9
Injuries (non-fatal) 0
Fatalities 0
Survivors 271 (all)
Aircraft type Airbus A310-308
Operator Air Transat
Registration C-GPAT
Flight origin Juan Gualberto Gomez Airport, Varadero, Cuba
Destination Jean Lesage Airport, Quebec, Quebec, Canada

Air Transat Flight 961 was a 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.

The investigation that followed determined that the manufacturer's inspection procedure for the composite rudder was not adequate.[1] Inspection procedures for composites structures on airliners were changed because of this incident.

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 ft (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 aircraft 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 incident. The inspection revealed that the entire rudder had broken away from the tail of the aircraft.[1]

Cause

Although most of the cockpit voice recorder and flight data recorder were erased due to the long span of time in which the incident occurred, there were several findings as to the cause of the incident. The aircraft probably had a stress fracture in the tail that went unnoticed for several flights prior to the incident flight and the A310 does not have a mechanism in the tail that suspends the growth of the fracture(s).[1]

The Transportation Safety Board found that inspection program of composite rudders was inadequate.[2] 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. The findings of the problems on Flight 961 are still being investigated and applied to similar incidents and accidents.

Aftermath

The accident aircraft, fin number 303, is still flying with Air Transat as of February 2013.

See also

American Airlines Flight 587

References

  1. ^ a b c "Report Number A05F0047".  
  2. ^ "Airbus inspection program inadequate at time of incident: Board".  

External links

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