SERS · Beech H-35 · 1999-08-10 · SWAN LAKE, MT, USA
Event
NTSB number
SEA99FA138
Event ID
20001212X19640
Type
Accident
Date
1999-08-10
Location
SWAN LAKE, MT, USA
Coordinates
47.740749, -113.740341
Injuries
Highest injury
SERS
Fatal
0
Serious
2
Minor
0
Uninjured
0
Total aboard
2
Aircraft
Make
Beech
Model
H-35
Registration
N7975D
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
Detonation/pre-ignition due to use of improper grade and type of fuel (automotive) and the pilot-in-command's failure to use proper fuel specified by manufacturer's directives.