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MIA90LA192

1990-09-24 · ST. THOMAS · None · 1 aircraft · Status: Completed

Airport STT

Current FAA registration · N4440K

Make / Model
CESSNA 421B
Year of manufacture
1974 · 16 years old at event
Engine
CONT MOTOR TSIO-520 SER (300 hp)
Seats / Engines
8 seats · 2 engines
Last airworthiness date
19740130
ADS-B equipped
Yes — Mode-S A55BDB

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

SEPARATION OF THE LEFT MAIN LANDING GEAR TORQUE TUBE BRACKET ASSEMBLY DUE TO SHEARED RIVETS FROM A PREVIOUS HARD SIDE LOAD LANDING WHICH WAS NOT REPORTED.

Factual narrative

AFTER TOUCHDOWN WITH THE GEAR DOWN & LOCKED WHILE TAXIING OFF THE RWY, THE LT MAIN LANDING GEAR COLLAPSED. ACCORDING TO THE DIRECTOR OF MAINT., THE LEFT LANDING GEAR BRACKET-ASSY, GEAR TORQUE TURBE, CAME LOOSE AFTER THE RIVETS SHEARED PROBABLY DUE TO A HARD SIDE LOAD LANDING WHICH WAS NOT REPORTED. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_MIA90LA192.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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