MIA91GA034

1990-11-28 · HOMESTEAD AFB, Florida, United States · None · 1 aircraft · Status: Completed

Airport KHST

Aircraft involved

N5056D ASTA N22S None

Probable cause & findings

THE BENDING OVERSTRESS FAILURE OF THE LEFT MAIN LANDING SCREWJACK AT AN UNDETERMINED TIME DURING FLIGHT FOR UNDETERMINED REASONS.

Factual narrative

FLIT EXPERIENCED INFLIT MALFUNCTION OF LDG GEAR SYSTEM WITH UNSAFE GEAR INDICATION. ON LDG ROLL THE LEFT MAIN LDG GEAR COLLAPSED SMOOTHLY. THE LEFT MAIN LDG GEAR SCREWJACK WAS FOUND SEPARATED DUE TO BENDING OVERSTRESS. NO OTHER FAILURES IN THE LDG GEAR SYSTEM WERE NOTED. ACCORDING TO THE ACFT MANUFACTURER NO FAILURES IN THE LDG GEAR SYSTEM COULD CAUSE BENDING OVERSTRESS OF THE SCREWJACK. ONLY PLACING THE WEIGHT OF THE AIRPLANE ON A RETRACTING OR EXTENDING GEAR COULD CAUSE THE FAILURE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_MIA91GA034.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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