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SEA91FA075

1991-03-31 · SEATTLE, Washington, United States · Fatal · 1 aircraft · Status: Completed

Airport BFI

Aircraft involved

Probable cause & findings

THE LOSS OF CONTROL IN FLIGHT BY THE PILOT DUE TO HIS IMPROPER PREFLIGHT PREPARATION IN FAILING TO SECURE CARGO WHICH SHIFTED IN FLIGHT AND INTERFERED WITH THE MOVEMENT OF THE CYCLIC CONTROL STICK.

Factual narrative

THE ACFT WAS ON VFR FINAL APPR AT 100 FT AGL WHEN IT ROLLED OVER, DESCENDED UNCONTROLLED, AND IMPACTED THE ROOF OF A WHSE. THE IMPACT BROKE A SKYLIGHT IN THE ROOF AND THE ACFT FELL THROUGH THE HOLE, COMING TO REST INSIDE THE WHSE. ROCKS, HAND TOOLS, AND A LARGE UNSECURED TREE STUMP WERE IN THE ACFT CABIN. THE STUMP HAD A FRESH SCAR AND BLACK PAINT SMEARS ADJACENT TO THE CYCLIC CONTROL STICK. A SCREW HEAD IN THE BLACK CYCLIC STICK WAS FILLED WITH WOOD SPLINTERS. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1991_SEA91FA075.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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Related research

Matched on aircraft type or causal vocabulary (loss of control). All research papers