ASN Wikibase Occurrence # 369806
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| Date: | Friday 16 September 1988 |
| Time: | 11:45 LT |
| Type: |  Hughes 369HS |
| Owner/operator: | Inter Mountain Helicopters |
| Registration: | N9110F |
| MSN: | 1190210S |
| Year of manufacture: | 1971 |
| Total airframe hrs: | 6813 hours |
| Engine model: | Allison 250-C20 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Columbia, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Columbia, CA (022) |
| Amer. Camp, CA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING AN EXTERNAL LOAD OPERATION, THERE WAS AN INDICATION OF HIGH TORQUE AND THE OIL CHIP LIGHT ILLUMINATED. THE ENGINE LOST POWER AND THE PILOT INITIATED AN AUTOROTATION. THE HELICOPTER COLLIDED WITH THE SLOPING TERRAIN AND ROLLED OVER. INSPECTION OF THE ENGINE REVEALED THAT THE NUMBER SIX AND SEVEN OIL SCREENS WERE IMPROPERLY INSTALLED RESTRICTING THE FLOW OF OIL. THE ENTIRE ENGINE EXHIBITED SIGNS OF LACK OF LUBRICATION AND EXCESSIVE TEMPERATURES.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB LAX88LA322
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Mar-2024 18:30 | ASN Update Bot | Added |
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