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SEA88LA009

1987-10-17 · POCATELLO, Idaho, United States · None · 1 aircraft · Status: Completed

Airport PIH

Aircraft involved

Factual narrative

THE EXPERIMENTAL GYROCOPTER WAS ON A TEST FLIGHT WHEN THE RIGHT RUDDER PEDAL PIVOT BOLT BROKE. THE AIRCRAFT BEGAN A SPIRAL IN A COUNTER-CLOCKWISE DIRECTION WITH THE RUDDER SEPARATING FROM THE AIRCRAFT AT THE HINGE POINTS. THE AIRCRAFT CONTINUED TO SPIRAL TO THE GROUND TO IMPACT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1987_SEA88LA009.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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