ASN Wikibase Occurrence # 132951
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| Date: | Wednesday 19 August 1992 |
| Time: | 19:45 LT |
| Type: |  WSK PZL Mielec M-18 Dromader |
| Owner/operator: | B & R Aerial Crop Care, Inc. |
| Registration: | N28951 |
| MSN: | 1Z007-15 |
| Total airframe hrs: | 2770 hours |
| Engine model: | PZL-Kalisz ASZ 621 RM18 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Mattawa, WA -
 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 |
FIFTEEN MINUTES INTO AN AERIAL APPLICATION FLIGHT THE ENGINE BEGAN RUNNING ROUGH AND BACKFIRING. THE PILOT DIVERTED TO A NEARBY AIRSTRIP AND EN ROUTE THE ENGINE CEASED OPERATING. DURING THE SUBSEQUENT FORCED LANDING THE CONVENTIONALLY GEARED AIRCRAFT NOSED OVER AS IT ROLLED OUT ON SOFT TERRAIN. EXAMINATION OF THE ENGINE REVEALED NO MECHANICAL MALFUNCTION. EXAMINATION OF THE MAIN FUEL FILTER REVEALED DEBRIS WITHIN THE FILTER CARTRIDGE AND EVIDENCE OF RUST. LIKEWISE, AN EXAMINATION OF THE CARBURETOR FUEL FILTER DISCLOSED SIMILAR INTERNAL DEBRIS BUILDUP.
Probable Cause: LOSS OF ENGINE POWER DUE TO FUEL CONTAMINATION AS A RESULT OF INADEQUATE MAINTENANCE BY THE OPERATOR. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS SOFT TERRAIN.
Accident investigation:
 |
|
Sources:
NTSB SEA92LA184
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 18:29 | ASN Update Bot | Updated [Time, Other fatalities, Phase, Source, Narrative, Category, Accident report] |
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