Aviation Accident Summaries

Aviation Accident Summary BFO94LA079

WILLIAMSTOWN, NJ, USA

Aircraft #1

N93AN

PITTS S2B

Analysis

THE PILOT STATED THAT THE INDICATED FUEL ON START UP WAS APPROXIMATELY 5/8 MAIN TANK (14 GALLONS). AFTER LEVELING OFF, HE CHECKED THE INSTRUMENTS AND NOTED THAT THE FUEL LEVEL WAS ABOUT 1/8TH FUEL (2.5 GALLONS). HE ELECTED TO LAND AT THE NEAREST AIRPORT, CROSS KEYS, NEW JERSEY, WHICH WAS 12 MILES TO THE EAST. THE AIRPLANE LOST TOTAL POWER ABOUT 2 MILES WEST OF CROSS KEYS. POST ACCIDENT EXAMINATION REVEALED THE FUEL TANKS WERE EMPTY. ALSO, NO ANOMALIES WERE FOUND DURING THE INSPECTION. AN ENGINE TEST RUN WAS PERFORMED UNDER THE SUPERVISION OF THE FAA, AND THE REPORT STATED, 'THIS ENGINE MET ALL NEW ENGINE TEST PARAMETERS, AS NO FAULT IN THE ENGINE COULD BE FOUND.'

Factual Information

On April 27, 1994, about 1425 eastern daylight time, a Pitts S2B, N93AN, was substantially damaged during a forced landing in Williamstown, New Jersey. The pilot and passenger received serious injuries. Visual meteorological conditions prevailed. There was no flight plan for the flight being conducted under CFR Part 91. In the NTSB form 6120.1/2, the pilot stated, I departed Wilmington, DE (ILG) with one passenger, Diana Combs, at approximately 1410 local time for a VFR flight to the east (intended destination: Old Bridge, New Jersey (3N6). Indicated fuel at start-up was approximately 5/8th main tank (auxiliary tank empty). Upon completing leaning procedure after level-off from initial climb to 2500 feet MSL, I performed a routine instrument check and noted the fuel level to indicate approximately 1/8th. I elected to land at the closest airport, which was Cross Keys, NJ (17N), straight ahead at approximately 12 nautical miles. Powerplant failure occurred approximately 2 miles west of Cross Keys, and I executed a forced landing in a farm field. Post accident examination by a Federal Aviation Administration (FAA) Inspector revealed that the fuel tanks were empty. Additionally, the examination revealed no defects. An engine test run was performed by Textron Lycoming under the supervision of a FAA Inspector. In the report of the engine test run results, submitted by the FAA Inspector, it stated, "This engine met all new engine test parameters, as no fault in the engine could be found."

Probable Cause and Findings

the pilot's failure to accurately determine the fuel supply, which resulted in fuel exhaustion and a subsequent forced landing.

 

Source: NTSB Aviation Accident Database

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