Casualties unknown

2002-12-23: Grumman American AA-1 (N5985L) — Chehalis, WA

Chehalis, WA, US

On December 23, 2002, a Grumman American AA-1 (registration N5985L) was involved in an aviation accident near Chehalis, WA. Investigators recorded the probable cause as: The total loss of engine power, for undetermined reasons, while the aircraft was on a VFR final approach. No suitable terrain for landing and water were factors. 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

After a short flight to view property, the pilot experienced an engine power loss during the final approach. The aircraft ditched in a pond. Investigation found low fuel in the selected tank and icing conditions, but the exact cause could not be determined.

Accident Details

On the day of the accident, the pilot landed at Chehalis-Centralia Airport and had lunch with his son. Following lunch, the pilot and his son decided to take a short flight to view some nearby property. After takeoff, the pilot climbed to a little over 2,000 feet and flew toward the location of the property. As the aircraft neared the subject area, the pilot discovered that the property was covered by dense low-level fog. Consequently, they headed back to the airport.

During the last part of the descending approach, the pilot advanced the power lever, but there was no response from the engine. The pilot attempted to stretch the glide to the end of the runway but was unable to do so. The aircraft ultimately ditched in a long narrow pond that was closely aligned with the approach heading.

Investigation Findings

During the investigation, it was determined that the selected fuel tank contained about one gallon of fuel when the aircraft was recovered. Additionally, the investigation determined that the aircraft was operating in icing conditions severe enough that carburetor icing could be expected at cruise power and below. At the termination of the investigation, it could not be positively determined whether the engine was starved of fuel due to the low quantity in the selected left tank, or whether the pilot had forgotten to apply full carburetor heat, resulting in a loss of power due to an accumulation of ice in the carburetor.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20030115X00067. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.