Incident at 6430N 134W over Yukon Territory


1997-12-02: NWA 29 was enroute from Detroit to Seoul at FL 350, and the crew reported moderate turbulence at 165 miles east of ALTUB at 0220Z. About 15 minutes later, the crew reported severe turbulence, and the a/c made an uncontrolled deviation from their cruise altitude to FL 346. The crew brought the a/c back to FL 350 and reported continuous moderate turbulence. OPI - System Safety


CADORS Number 1997C0818
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1997-12-01 - 02:35
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Yukon, Canada, North America, Prairie and Northern Region, 6430N 134W over Yukon Territory
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories Turbulence encounter

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator Commercial
Make  Silhouette image of BOEING
Model 747 400
Year Built
Engine Type Turbo fan
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number NWA 29
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage Unknown
Fatalities 0
Injuries 0
Events Weather - clear air turbulence (CAT)/turbulence

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