ASN Wikibase Occurrence # 367335
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| Date: | Tuesday 6 March 1990 |
| Time: | 10:30 LT |
| Type: |  Air Tractor AT-301 |
| Owner/operator: | Nicks Flying Service, Inc. |
| Registration: | N23509 |
| MSN: | 301-0391 |
| Total airframe hrs: | 4851 hours |
| Engine model: | P&W R-1340 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Rolling Fork, MS -
 United States of America
|
| Phase: | Approach |
| Nature: | Agricultural |
| Departure airport: | |
| (2 ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE ON SHORT FINAL, THE PLT WAS UNABLE TO CONTROL THE ACFT ABOUT THE LONGITUDINAL AXIS. THE BANK CONTINUED UNTIL THE ACFT IMPACTED THE GROUND & CAME TO REST INVERTED. EXAM OF THE ACFT REVEALED THAT THE LEFT AILERON SEPARATED UPWARD IN-FLT. THE THREE BOLTS & SELF LOCKING NUTS USED TO SECURE IT WERE NOT LOCATED. THERE WAS NO DAMAGE TO THE AILERON ATTACH ARMS UNDER THE WING NOR WAS THERE DAMAGE TO THE AILERON'S ATTACH PIONTS. THE AILERON PUSH-PULL ROD WAS EXAMINED & WAS FOUND TO HAVE FAILED DUE TO OVER LOAD. AN ANNUAL INSPN WAS PERFORMED 5 DAYS EARLIER, BUT THE AILERON WAS NOT REMOVED. THE ACFT LOGBOOK DID NOT CONTAIN AN ENTRY INDICATING THAT THE AILERON WAS REMOVED.
Probable Cause: THE IN-FLIGHT SEPARATION OF THE LEFT AILERON DUE TO IMPROPER MAINTENANCE PROCEDURES AND AN INADEQUATE AIRCRAFT PREFLIGHT.
Accident investigation:
 |
|
Sources:
NTSB MIA90LA083
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Mar-2024 13:17 | ASN Update Bot | Added |
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