SERS · AMERICAN AA-1 · 2015-02-08 · Fort Meade, MD, USA
Event
NTSB number
ERA15LA123
Event ID
20150209X81643
Type
Accident
Date
2015-02-08
Location
Fort Meade, MD, USA
Coordinates
39.085834, -76.769165
Injuries
Highest injury
SERS
Fatal
0
Serious
2
Minor
0
Uninjured
0
Total aboard
2
Aircraft
Make
AMERICAN
Model
AA-1
Registration
N6116L
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The mechanic’s failure to detect the incorrect dry valve tappet clearances while troubleshooting ongoing engine issues, which resulted in partial loss of engine power during takeoff. Contributing to the partial loss of engine power was the mechanic's failure to inspect the dry tappet clearances in accordance with the engine operator's manual and a referenced service instruction.