DEN92IA072

1992-07-08 · LAMAR, Colorado, United States · None · 1 aircraft · Status: Completed

Airport LAA

Aircraft involved

N3030K Piper PA-34-200T None

Probable cause & findings

FRACTURED NOSE LANDING GEAR BOLT DUE TO FATIGUE.

Factual narrative

THE PILOT NOTED AN UNSAFE INDICATION AFTER LOWERING THE LANDING GEAR AND OBSERVED THROUGH A MIRROR THE NOSEWHEEL WAS NOT LOCKED. HE ELECTED TO LAND WHEELS UP. POST INCIDENT INSPECTION DISCLOSED THE BOLT THAT ATTACHES THE UPPER DRAG LINK TO THE NOSE GEAR TRUNNION HAD SHEARED. LABORATORY EXAMINATION DISCLOSED TORSIONAL BENDING FATIGUE TYPICAL OF HIGH CYCLE LOW LOAD FATIGUE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1992_DEN92IA072.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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