ASN Wikibase Occurrence # 132920
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| Date: | Wednesday 28 December 1994 |
| Time: | 16:00 LT |
| Type: | Wyman SCORPION II |
| Owner/operator: | Curtis Wyman |
| Registration: | N65562 |
| MSN: | 110749 |
| Engine model: | Rotorway RW-152G |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Cornish Flat, NH -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | (NONE) |
| (NONE) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE KIT BUILT HELICOPTER WAS ON FINAL APPROACH, WHEN THE PILOT EXPERIENCED A 'SEVERE' VIBRATION. HE ENTERED AN AUTOROTATION; HOWEVER, THE HELICOPTER ROTATED 180 DEGREES, AND STRUCK THE GROUND TRAVELING BACKWARDS. THE LOWER SURFACE OF ONE MAIN ROTOR BLADE HAD SEPARATED FROM THE TIP TO WITHIN 30 INCHES OF THE HUB. THE ALUMINUM BLADES HAD A TOTAL FLIGHT TIME OF 51 HOURS AND HAD BEEN CONSTRUCTED BY THE KIT BUILDER.
Probable Cause: PARTIAL FAILURE AND SUBSEQUENT PARTIAL SEPARATION OF SKIN ON THE UNDERSIDE OF ONE MAIN ROTOR BLADE, WHICH RESULTED IN A SEVERE VIBRATION, IN-FLIGHT LOSS OF AIRCRAFT CONTROL, AND IMPACT WITH THE GROUND DURING AN ATTEMPTED AUTOROTATION.
Accident investigation:
 |
|
Sources:
NTSB NYC95DNC01
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 17:36 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Plane category, Accident report] |
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