Primary finding
Probable cause
Fatigue failure of a reduction drive planetary gear. Factors include an unapproved part and plating process, and uneven terrain at the emergency landing site.
Back to Search
NTSB investigation record
SEA98FA104
CompletedGarlick Uh-1H· N869W
- Date
- June 18, 1998
- Location
- Couer D'alene, ID
- Conditions
- VMC
- Record
- Completed
Continue research
Find similar accidents
Continue with the strongest shared characteristics.