ASN Wikibase Occurrence # 368368
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| Date: | Thursday 20 July 1989 |
| Time: | 12:23 LT |
| Type: |  Aerospatiale AS350D |
| Owner/operator: | Island Express Helicopters |
| Registration: | N143EH |
| MSN: | 1450 |
| Engine model: | LYCOMING LTS-101-600A2 |
| Fatalities: | Fatalities: 0 / Occupants: 6 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Long Beach, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Avalon, CA |
| Long Beach, CA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT WAS ABOUT 15 MINUTES INTO HIS OVER WATER FLIGHT WHEN THE ENGINE FAILED. THE FLOATS WERE DEPLOYED AND A SUCCESSFUL AUTOROTATION WAS MADE IN THE OCEAN. THE DRIVE SPLINES ON THE ENGINE DRIVEN FUEL PUMP EXHIBITED EVIDENCE OF EXCESSIVE ASYMMETRICAL WEAR AND THE ENGINE ACCESSORY DRIVE GEAR THAT DROVE THE FUEL PUMP SPLINES WAS EXCESSIVELY WORN. THE EXCESSIVE CLEARANCE BETWEEN THE GEAR AND SPLINE PERMITTED SLIPPAGE IN THE FUEL PUMP DRIVE SYSTEM.
Probable Cause: THE FAILURE OF THE ENGINE DRIVEN FUEL PUMP.
Accident investigation:
 |
|
Sources:
NTSB LAX89IA242
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Mar-2024 17:39 | ASN Update Bot | Added |
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