MINR · CESSNA 172S · 2017-07-31 · Seattle, WA, USA
Event
NTSB number
WPR17LA176
Event ID
20170802X44356
Type
Accident
Date
2017-07-31
Location
Seattle, WA, USA
Coordinates
47.54861, -122.40139
Injuries
Highest injury
MINR
Fatal
0
Serious
0
Minor
2
Uninjured
0
Total aboard
2
Aircraft
Make
CESSNA
Model
172S
Registration
N957TA
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The total loss of engine power due to oil starvation as a result of the loose right magneto, which allowed oil to escape and the engine to seize. Contributing to the accident was inadequate maintenance, which failed to identify the loose magneto bolt.