Casualties unknown

Fuel Siphoning Leads to Forced Landing and Wing Strike on Texas Highway (N6667P)

Caldwell, TX, US

On August 18, 1997, a Piper PA-24-250 (registration N6667P) was involved in an aviation accident near Caldwell, TX. Investigators recorded the probable cause as: The loss of engine power due to fuel exhaustion which resulted from a leaking fuel cap. Factors were the dark night conditions, and the lack of suitable terrain for the forced landing. 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 2026-06-10Data APIEditorial standards

During a night cross-country flight, engine power loss occurred after 3 hours 49 minutes. The pilot performed a forced landing to a highway, where the left wing struck a pickup truck that did not move. Post-landing inspection revealed fuel siphoning from the right tank.

Accident Overview

A single-engine aircraft lost engine power during a night cross-country flight from El Paso, Texas, to College Station, Texas, approximately 3 hours and 49 minutes after takeoff. The pilot reported that the right fuel tank quantity gauge indicated a quarter tank of fuel remaining at the time of power loss. The pilot had estimated a fuel endurance of 4.33 hours for the flight.

Forced Landing and Collision

The pilot initiated a forced landing to Highway 36. During the approach, the pilot flashed the aircraft's landing light to warn traffic of the intended landing. All vehicles moved out of the way except for a pickup truck, which the aircraft's left wing struck.

Post-Landing Inspection

After landing, the pilot examined the right fuel tank with a flashlight and observed that the bottom of the tank appeared 'buckled or bunched' up against the fuel quantity float. Subsequent examination of the right fuel tank revealed a damp fuel stain on the wing that originated from the filler cap. No bulging was found in the bottom of the tank. It was calculated that approximately 10 gallons of fuel had siphoned out during the flight.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08628. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.