Incident at 50 NM SW of Lynn Lake, MB

Summary

1999-08-26: CDN 96, a DC-10 with 218 people on board, was enroute from Calgary to Heathrow at FL 330 and was 50 miles southwest of Lynn Lake when the crew reported a problem with the right engine. They requested FL 280 and clearance to Vancouver. ATC re-cleared the flight as requested and advised Edmonton ACC. No other a/c were inconvenienced. TSB was advised. OPI - System Safety UPDATE TSB reported that WHILE ENROUTE TO LONDON, ENGLAND FLIGHT CDN 94, A DOUGLAS DC-10, HAD THE #3 ENGINE FIRE WARNING LIGHT ILLUMINATE. THE CAPTAIN PULLED THE POWER LEVER BACK ON THE #3 ENGINE AND THE LIGHT WENT OUT. THE POWER LEVER WAS AGAIN ADVANCED AND THE LIGHT STAYED OUT. AS A PRECAUTION THE PILOT ELECTED TO DIVERT BACK TO VANCOUVER TO HAVE THE PROBLEM INSPECTED. THE PROBLEM NEVER REPEATED ITSELF AND THE AIRCRAFT LANDED IN VANCOUVER WITHOUT FURTHER INCIDENT. THE OPERATOR REPORTED THAT THERE WAS NO ENGINE FIRE AND THAT IT IS CURRENTLY TROUBLSHOOTING THE PROBLEM. IT IS SUSPECTED TO BE EITHER A PNUEMATIC OR WIRING PROBLEM. THE OPERATOR ADVISED THAT IT WILL INFORM THE TSB OF THE RESULT. UPDATE Maintenance and Manufactuing Pacific Region reported that the aircraft experienced fire warnings in the #3 engine on three occasions. After the first event, pneumatic duct leaks were suspected, and a number of clamps were tightened. After the second event, extensive leak checks were carried out, which resulted in a pneumatic cross over duct being replaced due to a crack. After the third event, the aircraft was grounded on orders of the chief pilot. Ground runs and leak checks were carried out, which revealed a leak in the engine hot gas path caused by migration of a shim between the combustor section and the turbine section flanges. The engine was replaced and the aircraft put back in service.

Details


CADORS Number 1999C0712
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-08-23 - 03:00
Day or Night?
Fatalities 0
Injuries
Aerodrome ID
Aerodrome Name
Geographic Location Manitoba, Canada, North America, Prairie and Northern Region, 50 NM SW of Lynn Lake, MB
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories System/component failure or malfunction [powerplant]
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration FCRE | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner CANADIAN AIRLINES LTD
Operator Commercial
Make  Silhouette image of DOUGLAS
DOUGLAS
Model MD 10 30F
Year Built 1975
Engine Type Turbo fan
Engine Make GENERAL ELECTRIC TURBO FAN
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number CDN 96
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage Unknown
Fatalities 0
Injuries 0
Events Engine - malfunction

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