ASN Wikibase Occurrence # 363978
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| Date: | Friday 6 March 1992 |
| Time: | 19:45 LT |
| Type: |  Enstrom F28 |
| Owner/operator: | Private |
| Registration: | N95NR |
| MSN: | 1503 |
| Total airframe hrs: | 1842 hours |
| Engine model: | LYCOMING HIO-360-F1AD |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lakewood, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
ENGINE POWER WAS LOST AND THE PILOT INITIATED AN AUTOROTATION. THE PILOT SAID HE HAD 'INDICATIONS POWER WAS NORMAL' SO HE PULLED COLLECTIVE. THE HELICOPTER IMPACTED A ROADWAY. POST ACCIDENT EXAMINATION DISCLOSED THE FLEXIBLE AIR DUCT, BETWEEN THE AIR FILTER BOX AND THE TURBOCHARGER INLET, HAD BECOME DISCONNECTED AND HAD COLLAPSED. THE CLAMP SECURING THE AIR DUCT TO THE AIR FILTER BOX WAS LOOSE AND HAD SLIPPED OFF.
Probable Cause: THE PREMATURE USE OF COLLECTIVE BY THE PILOT DURING AN AUTOROTATION. FACTORS WERE: THE DISCONNECTION AND SUBSEQUENT COLLAPSE OF THE INDUCTION AIR LINE.
Accident investigation:
 |
|
Sources:
NTSB DEN92LA041
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Mar-2024 08:08 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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