NYC88LA170

NTSB accident investigation · Bell 47J2 · Newburyport, MA · June 25, 1988

Accident · Serious injuriesLimited investigationFinal report
Date
June 25, 1988, 10:45 local (14:45 UTC)
Place
Newburyport, MA
Injuries
1 serious, 2 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N51711Bell 47J2
Weather
Visual (VMC) · Day
Status
Completed · report December 29, 1989
Report
Approved by Office Director
FAA report
19880625023779A
Case key
36172

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.

Loss of engine powerCruise - normal
Fluid,fuel - exhaustionCause
Fuel supply - misjudgedPilot in commandCause
Aircraft preflight - inadequatePilot in commandCause
Forced landingDescent - emergency
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - water

Analysis

The helicopter departed runway 10 at plum island airport, turned left over the plum island river and shortly thereafter the engine quit. The pilot stated that no warning was noted and a check of the instruments indicated no problems. He further stated that the engine made no unusual noises. The helicopter was autorotated into water. The occupants were rescued by a private citizen. Examination of the helicopter after the accident revealed nothing that would have caused the engine to fail. Witnesses noted no gasoline in or on the water. Examination of the acft later showed about 1 gal of fuel in the rt tank and an undetermined amount of fuel and salt water in the left tank.

Aircraft

Registration
N51711
Reported as
Bell 47J2
Category
Helicopter
Serial number
2629
Engine
Lycoming O-540, 260 horsepower, reciprocating
Damage
Destroyed
Flight
Business · Part 91
Operator
Plum Island Flying Service
Registered owner
Air Plum Island
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 8, 1988
Departed
Newburyport, MA

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
46
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
1,845 total · 87 in this make and model · 37 in the last 90 days · 14 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 10 knots
Visibility
15 statute miles
Temperature
75 °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 N51711 · 1

Matched to the same aircraft by N-number and date.