NTSB Identification: LAX95LA150.
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Accident occurred Friday, March 31, 1995 in EL CAJON, CA
Probable Cause Approval Date: 08/23/1995
Aircraft: AERONCA 7AC, registration: N1937E
Injuries: 1 Serious,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 PILOT WAS CONDUCTING A LOCAL VFR FLIGHT AND THE PILOT EXECUTED AN EMERGENCY LANDING ON A ROUGH/UNEVEN FIELD FOLLOWING A TOTAL LOSS OF POWER. RESPONDING FIRE DEPARTMENT PERSONNEL AND FAA INSPECTORS DID NOT FIND ANY FUEL IN THE AIRCRAFT FUEL TANKS OR ON THE GROUND. THE AIRCRAFT WAS EQUIPPED WITH AN ORIGINAL EQUIPMENT GLASS GASCOLATOR BOWL. THE FUEL SYSTEM GASCOLATOR BOWL WAS NOT FOUND IN THE ENGINE COMPARTMENT OR ON THE GROUND ANYWHERE AT THE ACCIDENT SITE. INVESTIGATION REVEALED THAT THE MANUFACTURER RECOMMENDED REPLACEMENT OF THE GLASS GASCOLATOR BOWL WITH A METAL BOWL IN A SERVICE LETTER ISSUED IN 1946. THE ACTION WAS TAKEN DUE TO INCIDENCE OF THE GLASS BOWLS BREAKING IN FLIGHT. THE GLASS BOWL REPLACEMENT WAS NOT A SUBJECT OF ANY AIRWORTHINESS DIRECTIVES ON THE ACCIDENT AIRPLANE MAKE OR MODEL.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

a loss of engine power due to an in-flight separation of the fuel system gascolator glass bowl resulting in a premature fuel exhaustion. The rough/uneven terrain is a factor in this accident.

Full narrative available

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