Casualties unknown

1999-07-17: Piper PA32R-300 (N1692H) — Mammoth Lakes, CA

Mammoth Lakes, CA, US

On July 17, 1999, a Piper PA32R-300 (registration N1692H) was involved in an aviation accident near Mammoth Lakes, CA. Investigators recorded the probable cause as: The pilot's failure to attain and maintain an adequate airspeed for the prevailing density altitude. The pilot's failure to abort the takeoff is also causal. 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

A pilot added full fuel before departure at a 7,128 ft msl airport where density altitude was 9,400 ft. After takeoff, the airplane climbed to 200 ft but would not climb higher. The pilot lowered gear and airspeed, executing a controlled descent into terrain, with touchdown at 50-60 knots.

Background

The flight departed from an airport with an elevation of 7,128 feet mean sea level. Prior to departure, the pilot added full fuel. The Automated Weather Observing System (AWOS) reported a density altitude of 9,400 feet.

Pre-flight Actions

The pilot reviewed procedures for a high altitude takeoff, completed an engine run up, and leaned the mixture for departure.

Takeoff and Climb

After taxiing into position for takeoff, the pilot applied the brakes then power. The runway was slightly uphill. During the takeoff roll, the pilot did not feel the airplane was developing full power but did not abort the takeoff. The airplane climbed approximately 200 feet but would not climb higher.

Descent and Landing

The pilot decided that an attempt to turn could induce a stall. He then lowered the landing gear and reduced airspeed as much as possible. Maintaining a controlled descent, the airplane descended into the terrain. The pilot estimated the touchdown speed was between 50 and 60 knots. The pilot felt that the density altitude prevented the airplane from climbing.

Weather Information

An aviation routine weather report (METAR) issued at the time reported the temperature was 73 degrees Fahrenheit and the altimeter setting was 30.22 inches of mercury.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X19303. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.