- Date
- May 15, 1982, 16:15 local (20:15 UTC)
- Place
- Brookville, NY
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N911XBell 47G-2
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 15, 1983
- Report
- Approved by Office Director
- FAA report
- 19820515016109A
- Case key
- 70045
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
While returning to the heliport, the pilot noticed a decay in the engine and rotor rpm's. he elected to make a precautionary landing in a plowed field. During landing, the manifold pressure went to the red line while the RPM decayed. The helicopter touched down softly, but with about 10 mph forward speed. It rolled forward and to the right when the skids dug into the soft ground. An investigation revealed that the no. 6 cylinder had a low compression readingof 5/80 with blow-by evident into the intake system. When the cylinder was removed, the intake valve was found not to be seating properly. No other malfunction or defect of the engine or engine controls was noted.
Aircraft
- Registration
- N911X
- Reported as
- Bell 47G-2
- Category
- Helicopter
- Serial number
- 2511
- Airframe hours
- 2,642
- Engine
- Lycoming VIO-435-A1E, 240 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Island Helicopter, Inc.
- Registered owner
- Island Helicopter, Inc.
- Departed
- 4N6 · Garden City, NY
- Destination
- 4N6 · Garden City, NY
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 26
- Certificate
- Commercial
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Flight hours
- 192 total · 42 in this make and model · 106 as pilot in command · 6 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 50 statute miles
- Temperature
- 172 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N911X · 1
Matched to the same aircraft by N-number and date.