Incident at YELLOWKNIFE NT (CYZF)

Summary

2001-08-31: UPDATE Maintenance and Manufacturing reported that shortly after takeoff the flight crew shut down the # 1 engine due to backfiring and loss of power. This was a precautionary shutdown as the loss of power and the propeller not feathered created a large amount of drag which affected climb performance. Upon return to the maintenance facility, the carburetor was replaced and the a/c ground-checked as serviceable and it was returned to service. This was a relatively high-time engine (approximately 1200 hours TSO). The company has removed the engine and sent it for overhaul, and a zero time engine was installed. The reason for removal was that the company suspected that the valve cam may have been worn enough to cause a valve timing problem and backfiring. Replacement removed the risk of further incidents and ensured a greater margin of safety.
2001-08-17: UPDATE TSB reported that during rotation at takeoff, the number 1 engine (P & W R-2800) backfired and lost power. The engine was shut down. Emergency services were requested and the crew returned and landed on Runway 27. The aircraft was shut down on the runway and towed to the ramp. The carburettor was changed and the aircraft then returned to service.
2001-08-17: BFL 315, a C46, departed Runway 33 at Yellowknife at 2019Z and the crew reported an engine out at 2020Z. They returned and landed safely on Runway 27 at 2023Z. The crew was unable to taxi the a/c, so they were towed clear at 2037Z. CFR was on standby. One aircraft was delayed 15 minutes taxing to the west side of the airport.

Details


CADORS Number 2001C1023
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2001-08-15 - 20:23
Day or Night? Day-time
Fatalities 0
Injuries 0
Aerodrome ID CYZF
Aerodrome Name YELLOWKNIFE NT (CYZF)
Geographic Location Northwest Territories, Canada, North America, Prairie and Northern Region, Yellowknife
TSB Occurrence Number A01W0215
TSB Class of Investigation Class 5
AOR Number 17138
Reported By NAV CANADA
Categories System/component failure or malfunction [powerplant],Other
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration FAVO | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner BUFFALO AIRWAYS LTD
Operator BUFFALO AIRWAYS, INC. (4877) Commercial
Make CURTISS WRIGHT
Model C46D
Year Built 1945
Engine Type Reciprocating
Engine Make PRATT & WHITNEY
Engine Model R-2800-75M1
Gear Type Land
Private No
Amateur Built No
Flight Number BFL 315
Flight Rule
CARS Subpart
Phase of Flight Takeoff
Damage No Damage
Fatalities 0
Injuries 0
Events Engine - malfunction,Declared emergency/priority,Engine shut down

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