ASN Wikibase Occurrence # 368457
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| Date: | Friday 7 July 1989 |
| Time: | 11:00 LT |
| Type: |  Bell 47G-3B-2 |
| Owner/operator: | El Aero Services, Inc |
| Registration: | N8132J |
| MSN: | 6772 |
| Year of manufacture: | 1970 |
| Engine model: | LYCOMING TVO-435-B1 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Tierra Amarilla, NM -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | (NONE) |
| (KSAF) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A TAKEOFF WAS ATTEMPTED FROM A SKI SLOPE, HEADING NORTH, DOWN SLOPE. THE PLT ESTIMATED THE WINDS WERE NORTH AT 5 KNOTS. THE DENSITY ALTITUDE WAS COMPUTED TO BE 11,000 FT. THE PLT SAID THAT DURING HOVER FOR TAKEOFF, THE ROTOR/ENGINE RPM BEGAN TO DECAY. HE SAID HE OBSERVED THE ENGINE RPM AT 2,700 BEFORE THE CRASH. THE HELICOPTER CRASHED 130 FEET DOWN SLOPE FROM THE LIFT OFF POINT, AND ROLLED OVER. A POST ACCIDENT ENGINE RUN FAILED TO REVEAL ANY EVIDENCE TO EXPLAIN THE REPORTED LOSS OF POWER.
Probable Cause: THE FAILURE OF THE PILOT TO MAINTAIN ROTOR RPM DURING THE PREMATURE LIFT-OFF WHICH RESULTED IN A FORCED LANDING. CONTRIBUTING TO THE ACCIDENT WAS THE HIGH DENSITY ALTITUDE CONDITIONS, AND UNSUITABLE TERRAIN.
Accident investigation:
 |
|
Sources:
NTSB DEN89LA159
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Mar-2024 18:37 | ASN Update Bot | Added |
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