ASN Wikibase Occurrence # 354596
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| Date: | Thursday 16 April 1998 |
| Time: | 16:45 LT |
| Type: |  Enstrom 280C |
| Owner/operator: | Private |
| Registration: | N5693D |
| MSN: | 1192 |
| Total airframe hrs: | 3048 hours |
| Engine model: | Lycoming HIO-360-E1AD |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Castle Rock, CO -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | Englewood, CO (APA |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight instructor was conducting an introductory flight with a new student. While demonstrating emergency procedures at approximately 400 feet above the ground, the helicopter lost engine power. Determining the ground unsuitable for landing, he turned south and aimed for a flat area of terrain. He cushioned the landing with the collective, then sank 6 inches into the ground. Examination of the engine disclosed no abnormalities, however a postaccident functional test of the engine revealed a malfunction in the engine-driven fuel pump. When the electrically-driven boost pump was switched to the OFF position, power fluctuations were noted. All three rotor blades were bent, and the tail boom was severed.
Probable Cause: Malfunction of the engine-driven fuel pump. Factors were unsuitable terrain, soft ground, and a berm.
Accident investigation:
 |
|
Sources:
NTSB FTW98LA183
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Mar-2024 16:13 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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