Incident at Jasper, AB

Summary

1997-09-25: C-FXWE was on a VFR flight from Salmon Arm, BC to Edson, AB with only the pilot on board, when the a/c had a complete engine failure over Highway 16 near the town of Jasper. The pilot was able to carry out a successful forced landing on the highway near the intersection of 16 and Highway 93 at the west end of the townsite. The a/c was not damaged and the pilot was not injured. An aviation maintenance engineer came to the site and examined the engine, and the initial assessment is that there may be a major mechanical malfunction, such as a crankshaft or piston failure. The a/c was towed to the Jasper airport with the assistance of the local RCMP, and the engine will be examined further there. It was reported that the engine was installed in 1996. (The RCMP also reported that the pilot was able to stop the a/c at the red light which controls the highway intersection.) UPDATE A maintenance examination of the engine discovered that there was a sheared dowel on the crankshaft accessory drive gear assembly. UPDATE The engine manufacturer has listed more than 40 cases of similar failures, with 33 of these occurring in flight, resulting in complete loss of power. Since 1991, there has been an Airworthiness Directive, a Service Bulletin, and a Service Letter issued for modifications that would prevent this problem, but they are only required at overhaul, a propellor strike or when the gear train is repaired. The engine in this a/c had 973 hours since overhaul in 1975, and had not had the modification done.

Details


CADORS Number 1997C0591
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1997-08-28 - 16:20
Day or Night?
Fatalities 0
Injuries
Aerodrome ID
Aerodrome Name
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Jasper, AB
TSB Occurrence Number
TSB Class of Investigation
AOR Number
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 FXWE | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner
Operator Private
Make  Silhouette image of CESSNA
CESSNA
Model 172
Year Built 1968
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,Forced landing

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