Casualties unknown

Aircraft Overruns Runway and Crashes After Takeoff (N81648)

Port Heiden, AK, US

On October 4, 1993, a Piper PA-18 (registration N81648) operated by Blankenship, Damon was involved in an aviation accident near Port Heiden, AK. Investigators recorded the probable cause as: The pilot's failure to ensure adequate climb performance during takeoff on a wet, uphill runway with strong winds, which resulted in striking terrain at the end of the runway. 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

An aircraft failed to gain sufficient altitude during a takeoff roll on a wet, uphill runway in strong winds, striking terrain at the runway end before crashing.

What happened

The pilot-in-command elected to initiate a takeoff roll up an incline, citing wind conditions that were reported as blowing straight down the runway at 20 knots with gusts reaching 25 knots. The surface conditions were described as very wet and soft, which likely impacted acceleration performance. Following liftoff, the aircraft was unable to achieve a climb rate sufficient to clear the rising terrain. Consequently, the landing gear struck brush located at the end of the runway. The airplane subsequently spun around before coming to rest in a crashed state.

The investigation

The investigation relied primarily on statements from the pilot-in-command regarding the environmental conditions and aircraft performance during the critical phase of flight. No mechanical failure was identified as a contributing factor; the inability to out-climb the terrain was attributed to the combination of runway slope, surface friction, and wind dynamics.

Findings

The primary factors leading to this accident were the pilot's decision to utilize an uphill runway with wet and soft surface conditions during high wind gusts, resulting in inadequate climb performance. The aircraft's inability to clear the rising terrain at the end of the runway led to ground contact and subsequent structural damage.

Probable cause

The pilot's failure to ensure adequate climb performance during takeoff on a wet, uphill runway with strong winds, which resulted in striking terrain at the end of the runway.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X13506. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.