ASN Wikibase Occurrence # 384930
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| Date: | Tuesday 2 March 1982 |
| Time: | 12:05 LT |
| Type: |  Hughes 500 |
| Owner/operator: | Evirogas,inc. |
| Registration: | N8690F |
| MSN: | 165D |
| Total airframe hrs: | 1829 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Little Valley, NY -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Ellicottville, NY |
| Mayville, NY | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
ABOUT 10 MINUTES AFTER TAKEOFF IN HEAVY, WET, BLOWING SNOW, THE ENGINE LOST POWER. AT THAT TIME, THE HELICOPTER WAS AT ABOUT 100 FT AGL. AT THE FIRST INDICATION OF A POWER LOSS, THE PILOT INITIATED AND COMPLETED AN AUTOROTATIVE LANDING IN AN OPEN FIELD. DURING TOUCHDOWN, THE MAIN ROTOR BLADES FLEXED DOWNWARD AND STRUCK THE TAIL BOOM. THE AUTO REIGNITION FUNCTIONED AND THE ENGINE WAS OPERATING AT THE TIME OF LANDING. AN INVESTIGATION REVEALED THE PARTICLE SEPARATOR HAD BECOME COMPLETELY CLOGGED WITH SNOW. THE PILOT DID NOT RECEIVE ADVANCE WARNING FROM THE PARTICLE SEPARATOR DIFFERENTIAL PRESSURE SENSOR AND COCKPIT WARNING LIGHT SYSTEM. THEREFORE, HE DID NOT MANUALLY RELEASE THE PARTICLE SEPARATOR BYPASS DOOR PRIOR TO THE ENGINE FLAME-OUT.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB NYC82DFJ11
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Apr-2024 16:20 | ASN Update Bot | Added |
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