Incident at 30 NM E of Key Lake, SK


1999-03-19: C-FQWP, a Piper Navajo, was enroute from Wollaston Lake to La Ronge when the pilot reported shutting down the left engine. He declared an emergency and diverted to Key Lake, where the a/c landed safely at 0058Z. The nature of the engine problem is not known. OPI - Maintenance and Manufactuing UPDATE TSB reported that company maintenance found that the piston in one cylinder would not move. The cylinder will be overhauled and an SDR submitted. UPDATE M. & M. reported that the big end of the number 6, rearmost, connecting rod had failed. The company believes overheating caused by oil starvation to the big end bearing to be the cause. Because the failed connecting rod virtually welded itself to the crankshaft, there is no apparent case damage, but the crankshaft is scrap. The company intends to have the engine shop cut up the crankshaft to determine the cause of the oil starvation. An SDR has been submitted. This engine had 2145 hours since last overhaul and was operating on extension. The engine has been replaced with an overhauled unit.


CADORS Number 1999C0173
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-03-11 - 00:39
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Saskatchewan, Canada, North America, Prairie and Northern Region, 30 NM E of Key Lake, SK
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories System/component failure or malfunction [powerplant],Other

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration FQWP | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator Commercial
Make  Silhouette image of PIPER
Model PA31 325
Year Built 1974
Engine Type Reciprocating
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage Unknown
Fatalities 0
Injuries 0
Events Engine failure,Declared emergency/priority

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