NONE · ENGINEERING & RESEARCH 415-D · 2013-09-06 · Beaver Falls, PA, USA
Event
NTSB number
ERA13LA406
Event ID
20130909X51125
Type
Accident
Date
2013-09-06
Location
Beaver Falls, PA, USA
Coordinates
40.77, -80.391387
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
2
Total aboard
2
Aircraft
Make
ENGINEERING & RESEARCH
Model
415-D
Registration
N3940H
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The owner/pilot’s failure to follow engine manufacturer recommendations for engine oil changes and spark plug cleaning and rotating when operating the airplane with 100 low lead fuel, which resulted in carbon buildup in the engine and the total loss of engine power due to the No. 3 cylinder exhaust valve being stuck open.