Casualties unknown

1998-01-30: Cessna 500 (N9AX) — Horseshoe Bay, TX

Horseshoe Bay, TX, US

On January 30, 1998, a Cessna 500 (registration N9AX) was involved in an aviation accident near Horseshoe Bay, TX. Investigators recorded the probable cause as: The pilot's inability to avoid a deer during the landing roll, which resulted in an antler penetrating the left wing fuel tank and causing a significant fuel spill. 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

An airplane struck a deer during landing roll, causing an antler to penetrate the left wing fuel tank and spill approximately 150 gallons of fuel onto the runway and ramp area.

What happened

The aircraft was conducting a landing operation on the south runway when it collided with a deer during the landing roll. The pilot reported attempting to avoid the animals but was unable to prevent the impact.

Following the collision, the airplane taxied from the runway to the ramp area. During this taxi, fuel began to spill from the left wing structure. Upon inspection, an antler was discovered embedded in the left wing, having penetrated through the outer skin and into the internal fuel tank.

The investigation

A visual examination of the aircraft confirmed that the impact with the deer caused structural damage to the left wing. The penetration of the wing by the antler resulted in a breach of the fuel tank integrity. This breach allowed fuel to escape the system during taxi operations.

Approximately 150 gallons of aviation fuel drained from the aircraft onto the runway, taxiway, and ramp area. No further mechanical failures or structural issues were noted beyond the damage caused by the wildlife strike.

Probable cause

The pilot's inability to avoid a deer during the landing roll, which resulted in an antler penetrating the left wing fuel tank and causing a significant fuel spill.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X09442. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.