Casualties unknown

2006-09-16: Grumman American Avn. Corp. AA-5 (N6532L) — RI Flying Club — Watsonville, CA

Watsonville, CA, US

On September 16, 2006, a Grumman American Avn. Corp. AA-5 (registration N6532L) operated by RI Flying Club was involved in an aviation accident near Watsonville, CA. Investigators recorded the probable cause as: A loss of engine power due to fuel exhaustion as a result of the pilot's inadequate preflight planning, en route fuel consumption calculations, and in-flight decision to continue to the destination instead of stopping en route for fuel. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

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

During cruise, engine lost power; pilot attempted forced landing but impacted obstacles short of runway. Post-accident inspection revealed empty left fuel tank and no fuel odor.

Event Overview

A single-engine airplane experienced a loss of engine power during cruise flight. The pilot attempted a forced landing at an uncontrolled airport but was unable to reach the runway, resulting in the airplane impacting several objects in a residential area approximately 2,000 feet from the airport.

Flight Details

The flight was planned for 310 nautical miles. The pilot reported that during preflight, he visually checked the fuel levels and saw both tanks were near the top. He calculated his time en route based on a no-wind condition as 2.58 hours, with 38 gallons of fuel and an estimated fuel burn of 8 gallons per hour. Prior to departure, he checked weather and anticipated headwinds of 10 to 15 knots. According to the pilot, two legs of the flight were longer than planned by a total of 35 minutes, leading him to become concerned about the fuel state. He briefly considered a fuel stop short of the destination.

Power Loss and Forced Landing

During descent to the destination airport, the pilot switched the fuel selector to the right fuel tank. The engine then lost power. After switching to the left tank, the engine briefly restarted but subsequently lost power again. The pilot initiated a forced landing to an uncontrolled airport but determined that the airplane lacked sufficient altitude to reach the runway, resulting in a landing in a residential area short of the airport.

Post-Accident Observations

A deputy who responded to the accident site noted the absence of any fuel smell around the airplane. Examination revealed that the left wing fuel tank was empty. The right wing had separated from the fuselage during the accident sequence. The pilot stated that there were no mechanical anomalies with the airplane or engine.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20061103X01605. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.