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Aviation Accident

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NTSB Identification: ERA16LA153
14 CFR Part 91: General Aviation
Accident occurred Saturday, April 02, 2016 in South Harrison Township, NJ
Probable Cause Approval Date: 09/06/2017
Aircraft: BUTTERHOF ANTHONY J GINNY B, registration: N349E
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The sport pilot/mechanic reported that the accident flight was the first flight in the experimental, amateur-built airplane after he installed an overhauled engine. About 30 minutes after takeoff, the engine experienced a sudden and total loss of power and would not restart. The pilot then conducted a forced landing to a grass field, and the airplane nosed over.
The pilot and another mechanic subsequently performed a condition inspection of the airplane and found that fuel had leaked from the gascolator between the glass cup and metal frame. They also found that the gascolator bale clamp was not safety-wired, which allowed the clamp to loosen and subsequently relax the seal between the glass cup and the metal frame and the fuel to leak.


The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
  • The pilot/mechanic's failure to safety-wire the gascolator bale clamp, which resulted in a fuel leak and subsequent total loss of engine power.