ASN Wikibase Occurrence # 288269
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| Date: | Thursday 29 July 2010 |
| Time: | 08:30 LT |
| Type: | Hiller UH-12E Soloy |
| Owner/operator: | Haddock Flying Service Inc |
| Registration: | N104HH |
| MSN: | 2062 |
| Total airframe hrs: | 10099 hours |
| Engine model: | Allison 250 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Holly Hill, South Carolina -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Holly Hill, SC |
| Holly Hill, SC | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot stated that as he approached a tree line for aerial application his chemical ran out. As he turned back to reload the chemical, the engine experienced a total loss of power. The pilot quickly conducted an autorotation and collided with trees before coming to rest on the ground. A postaccident examination of the engine revealed that the combustion chamber fuel spray nozzle was clogged with carbon and soot deposits, which is likely the result of the nozzle not being properly inspected and cleaned during the last 100-hour inspection. A review of the engine maintenance logbooks revealed that the last 100-hour inspection was completed 41 days prior to the accident. According to the aircraft Hobbs time, the engine accumulated 40 hours since the 100-hour inspection.
Probable Cause: Maintenance personnel's improper inspection and cleaning of the fuel nozzle, which resulted in a total loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB ERA10LA383
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Oct-2022 20:39 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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