MBB BK-117 N135CP
12 July 1988 · Manhattan, New York, United States · No injuries
Summary
On 12 July 1988 at about 16:10 local time, a MBB BK-117 registered N135CP, operated by Colgate Palmolive, was involved in an incident near Manhattan, New York, United States. One person was on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 16:10
- Classification
- Incident
- Location
- Manhattan, New York, United States
- Coordinates
- Not recorded
- Aircraft
- MBB BK-117
- Registration
- N135CP
- Category
- Helicopter
- Engines
- 2
- Operator
- Colgate Palmolive
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Business
- Phase of flight
- Not recorded
- Route
- Unknown → Teterboro
- Aircraft damage
- Minor
- Weather
- Unk
- Light
- Day
- NTSB number
- NYC88IA186
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
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.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
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.
Quoted verbatim from the NTSB record.
Other MBB BK-117 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 27 Mar 1989 | MBB BK-117-A-3 | Coinjock, North Carolina, United States | - | Fatal | 2 |
| 14 Feb 1989 | MBB BK-117 A-1 | Tyler, Texas, United States | U. S. Jet | Fatal | 3 |
| 27 Jan 1991 | MBB BK 117 B-1 | Sonestown, Pennsylvania, United States | Keystone Helicopter Corporatio | Fatal | 4 |
| 21 Jun 1992 | MBB BK-117 | Middletown, Connecticut, United States | Rocky Mountain Helicopters | Fatal | 1 |
| 25 May 1993 | MBB BK 117 A-4 | Lafayette, Louisiana, United States | Petroleum Helicopters, Inc. | No injuries | - |
| 30 Apr 1997 | MBB BK-117-A1 | Kane, Pennsylvania, United States | Keystone Helicopters | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 May 1988 | Cessna 150 | Poland, New York, United States | James King | No injuries | - |
| 14 Jun 1988 | Lake LA-4-200 | Wantagh, New York, United States | - | Serious injuries | - |
| 18 Jun 1988 | Robinson R22HP | Copake Falls, New York, United States | Aviation Training Academy | No injuries | - |
| 18 Jul 1988 | Cessna 150 | Massena, New York, United States | - | No injuries | - |
| 1 Jul 1988 | Piper PA-32-300 | Akron, New York, United States | REX Miller Flying Service | No injuries | - |
| 1 Jul 1988 | Piper PA-23-250 | East Hampton, New York, United States | - | Serious injuries | - |