ASN Wikibase Occurrence # 360147
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| Date: | Monday 18 July 1994 |
| Time: | 09:30 LT |
| Type: |  Grumman G-164A Ag-Cat |
| Owner/operator: | Private |
| Registration: | N4242X |
| MSN: | 2018R |
| Engine model: | P&W R-1340-AN-1 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Samson, AL -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE AG PILOT WAS SPRAYING COTTON, AND IN A 60 DEGREE BANK, WHEN HE NOTICED THAT THE AILERONS WERE INEFFECTIVE. HE REDUCED POWER AND ATTEMPTED TO LEVEL THE WINGS WITH RIGHT RUDDER. THE LEFT WING CONTACTED THE GROUND, FOLLOWED BY THE LEFT MAIN GEAR. THE AIRCRAFT FLIPPED SEVERAL TIMES BEFORE COMING TO REST INVERTED. FLIGHT CONTROL EXAMINATION REVEALED THAT AN AILERON TORQUE TUBE BOLT WAS FRACTURED, DISABLING THE AILERONS. METALLURGICAL EXAMINATION OF THE BOLT REVEALED AREAS OF LOW STRESS, MULTIPLE ORIGIN FATIGUE CRACKING.
Probable Cause: THE FAILURE OF THE AILERON TORQUE TUBE BOLT FROM FATIGUE, WHICH RESULTED IN AN INFLIGHT LOSS OF AIRCRAFT CONTROL AND COLLISION WITH TERRAIN.
Accident investigation:
 |
|
Sources:
NTSB ATL94LA142
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Mar-2024 18:24 | ASN Update Bot | Added |
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