Dec 14, 1998
Accident
Substantial DARRINGTON, WA
Injuries1 serious
Phase of Flight-
ConditionsVMC
OperationFAR 133
Probable Cause
The total separation of the vertical fin (stabilizer), as the result of fatigue cracks which initiated in the fourth rivet hole above where the fin extends from the tailboom.
NTSB SEA99LA020