Casualties unknown

2004-07-11: Mooney M20J (N302SB) — Hackettstown, NJ

Hackettstown, NJ, US

On July 11, 2004, a Mooney M20J (registration N302SB) was involved in an aviation accident near Hackettstown, NJ. Investigators recorded the probable cause as: The pilot's inadequate preflight inspection, which resulted in the total loss of engine power due to fuel contamination, during the initial climb after takeoff. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

During initial climb after takeoff at about 100 feet, the engine lost all power. The aircraft struck a residence rooftop and came to rest in trees near the runway. Post-accident examination found water in the fuel system but no pre-impact mechanical anomalies.

Accident Details

During the initial climb after takeoff, at approximately 100 feet above ground level, the engine experienced a total loss of power. The airplane subsequently struck the rooftop of a residence and came to rest in trees. The debris field was located about 200 feet from the departure end of the runway.

Post-Accident Examination

An examination of the airplane and engine did not reveal any pre-impact mechanical malfunctions. However, water was observed in the engine-driven fuel pump, flow divider, and gascolator. The aircraft was equipped with sump drains at the lowest point of each fuel tank, and a drain valve was installed in the fuel selector valve assembly.

Pre-Flight Procedures

The airplane information manual, under normal procedures and the pre-flight inspection section, contained instructions for checking and removing "sediment contamination and condensed water accumulation." The aircraft was last refueled and flown the day before the accident.

Fuel System Inspection

Despite the presence of water in the fuel system components, the examination confirmed that all drain points were functional. The source did not specify whether the pre-flight fuel drain procedures were performed on the day of the accident.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20040713X00957. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.