ASN Wikibase Occurrence # 370716
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| Date: | Tuesday 12 July 1988 |
| Time: | 13:10 LT |
| Type: |  MBB Bk 117A-1 |
| Owner/operator: | Colgate Palmolive |
| Registration: | N135CP |
| MSN: | 7014 |
| Engine model: | LYCOMING LTS-101 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Manhattan, NY -
 United States of America
|
| Phase: | Standing |
| Nature: | Executive |
| Departure airport: | |
| Teterboro, NJ | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AS THE PLT OF AN S-76 HELICOPTER WAS HOVERING TO PARK NEXT TO A PARKED MBB BK 117 HELICOPTER, N135CP, THE MAIN ROTOR BLADES OF N135CP BEGAN FLAPPING. SUBSEQUENTLY, ONE BLADE FAILED FROM DOWNWARD OVERLOAD, ABOUT 29 INCHES FROM THE MAIN RETAINING PIN CENTER.
Probable Cause: FAILURE OF THE MAIN ROTOR BLADE APPEARS TO BE THE RESULT OF A STATIC DOWNWARD BENDING OVERSTRESS, CAUSED BY ANOTHER HELICOPTER HOVERING OVER OR VERY CLOSE TO THE MAIN ROTOR BLADE AS IT WAS IN A STATIC/STOPPED POSITION.
Accident investigation:
 |
|
Sources:
NTSB NYC88IA186
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Mar-2024 14:12 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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