Casualties unknown

1983-11-20: Grumman American AA-5B (N28420) — Castlewood Aviation, Inc. — Boulder, CO

Boulder, CO, US

On November 20, 1983, a Grumman American AA-5B (registration N28420) operated by Castlewood Aviation, Inc. was involved in an aviation accident near Boulder, CO. 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 attempted four landings, overshooting three times before touching down on the fourth. The aircraft porpoised, drifted off the runway, struck a light, then took off again before crashing into a ravine and catching fire.

Accident Sequence

According to witnesses, the pilot made three attempts to land. During each attempt, he overshot his approach and executed a go-around without touching down. On the fourth attempt, he did touch down but appeared to be too fast, and the aircraft skipped and bounced. After passing halfway down the 4,100-foot runway, the aircraft began porpoising and the wings were rocking back and forth.

Shortly before reaching the end of the runway, the aircraft drifted off the right side, striking a runway light. Witnesses heard the engine RPM increase and watched the aircraft stagger off the ground until it disappeared behind a steep drop-off approximately 300 feet from the departure end of the runway.

Impact and Fire

The aircraft impacted at the bottom of a ravine, flipped over, and immediately caught fire.

Pilot Background

Ten days before the accident, the pilot received a 1.6-hour check-out in the aircraft. He did not fly again until the accident flight.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X45029. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.