Casualties unknown

2007-09-12: Grumman American AA-5 (N119G) — Joshua Tree, CA

Joshua Tree, CA, US

On September 12, 2007, a Grumman American AA-5 (registration N119G) was involved in an aviation accident near Joshua Tree, CA. Investigators recorded the probable cause as: The pilot had not reset his altimeter to the destination airport's current altimeter setting, which resulted in the altimeter indicating a higher than actual altitude. 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

Pilot descending for destination during VFR night cross-country struck hilly terrain 57 ft below ridgeline top due to power outage and altimeter not reset.

Accident Details

A pilot conducting a VFR night cross-country flight struck hilly terrain while descending to his destination airport. The aircraft impacted at an elevation 57 feet below the top of a 2,973-foot ridgeline with the wings level. The flight, between two airports, was a frequent route for the pilot.

Flight Description

Before departure, the pilot informed his girlfriend that he intended to stay out longer than normal for night currency. Following the cross-country flight, he initiated a descent toward his home airport. Extracted GPS data indicated a normal descent profile consistent with previous flights.

Contributing Factors

A local power outage, which also affected the airport, left the pilot descending without the benefit of ground illumination. Additionally, the pilot had not reset his altimeter to the destination airport's current altimeter setting. This resulted in the altimeter indicating a higher altitude than the aircraft's actual height above the terrain.

Probable cause

The pilot had not reset his altimeter to the destination airport's current altimeter setting, which resulted in the altimeter indicating a higher than actual altitude.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070927X01460. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.