ASN Wikibase Occurrence # 295628
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| Date: | Friday 27 June 2003 |
| Time: | 20:00 LT |
| Type: |  Bell 47G-5A |
| Owner/operator: | Adventure Helicopters Inc. |
| Registration: | N8413D |
| MSN: | 25091 |
| Engine model: | Lycoming O435-B1A |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Sandusky, Michigan -
 United States of America
|
| Phase: | Unknown |
| Nature: | Executive |
| Departure airport: | Sandusky, MI (KPVT) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter sustained substantial damage when it landed hard during an autorotation following an in-flight loss of engine power. The pilot reported the engine failed at approximately 400 feet above ground level while in cruise flight. The pilot noted he performed an autorotation but flared early to avoid a drainage ditch. The pilot stated the helicopter landed hard in a field. An inspection of the helicopter showed engine and flight control continuity. The spark plugs and exhaust tubes were clean and the fuel tanks contained fuel. The magnetos worked when tested independently of the ignition system. The inspection revealed that the ignition switch had an internal fault causing it to ground out the ignition system.
Probable Cause: The failure of the ignition switch leading to an engine power loss in cruise flight and the subsequent high flare during autorotation. Factors contributing to the accident were the pilot's misjudgment of the landing flare and the unsuitable terrain encountered by the pilot on landing.
Accident investigation:
 |
|
Sources:
NTSB CHI03LA184
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Oct-2022 10:48 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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