- Date
- October 30, 1987, 15:30 local (20:30 UTC)
- Place
- Spring Valley, NY
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Taxi
- Aircraft
- N109AMAgusta 109A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 26, 1989
- Report
- Approved by Office Director
- FAA report
- 19871030083199A
- Case key
- 36045
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The helicopter had been refueled and the pilot was attempting to ground taxi. Prior to turning the aircraft around to taxi to a parking area the helicopter went into ground resonance as soon as the aircraft was moved. Collective was lowered, the engine retarded and the rotor brakes applied but ground resonance continued until the main rotor blades contacted the pavement.
Aircraft
- Registration
- N109AM
- Reported as
- Agusta 109A
- Category
- Helicopter
- Serial number
- 7296
- Airframe hours
- 180
- Engine
- Allison 250-C20B, 420 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Positioning · Part 91
- Registered owner
- Rockland Aviation
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · April 28, 1987 · 71 hours before
- Departed
- TEB · Teterboro, NY
- Destination
- Spring Valley, NY
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 51
- Certificates
- Airline transport, Commercial, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Right
- Flight hours
- 4,959 total · 254 in this make and model · 4,801 as pilot in command · 114 in the last 90 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 260° at 10 knots
- Visibility
- 15 statute miles
- Temperature
- 61 °F
- Altimeter
- 30.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.