ASN Wikibase Occurrence # 370731
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| Date: | Monday 11 July 1988 |
| Time: | 11:10 LT |
| Type: |  Bell 47D1 (OH-13E) |
| Owner/operator: | Allied Helicopter Services Inc |
| Registration: | N12087 |
| MSN: | 734 |
| Total airframe hrs: | 7951 hours |
| Engine model: | FRANKLIN 6V4-200-C32 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Stockbridge, MI -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT WAS SPRAYING AN ONION FIELD WHEN HE NOTED A VIBRATION, FOLLOWED BY A LOUD NOISE & SEVERE SHAKING OF THE HELICOPTER. HE ATTEMPTED A FORCED LANDING, BUT THE HELICOPTER WAS UNRESPONSIVE TO CYCLIC & COLLECTIVE INPUTS. SUBSEQUENTLY, THE RIGHT SKID DUG INTO THE GROUND & COLLAPSED DURING TOUCHDOWN, THEN THE MAIN ROTOR BLADES STRUCK THE GROUND. A POST ACDNT INSPN REVEALED THE BOLT, WHICH CONNECTED THE DRIVE LINK TO THE COLLECTIVE SCISSORS ARM, WAS MISSING.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB CHI88DEC05
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Mar-2024 14:19 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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