SEA82DA112

NTSB accident investigation · Bell 47G-2 · Harrah, WA · July 15, 1982

Accident · Serious injuriesFinal report
Date
July 15, 1982, 07:15 local (14:15 UTC)
Place
Harrah, WA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N6145CBell 47G-2
Weather
Visual (VMC) · Day
Status
Completed · report July 15, 1983
Report
Approved by Office Director
FAA report
19820715029789A
Case key
70966

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Analysis

The pilot reported that before taking off, the fuel quantity guages indicated there was sufficient fuel to complete one more load and still have an adequate reserve. After dispensing the load, the engine lost power while he was returning to the nurse truck. At that time, the helicopter was at about 100 ft AGL and was about to cross a power line. The pilot turned to avoid the power line and leveled the helicopter, but it landed hard. The helicopter was substantially damaged and the pilot received a compression fracture of a vertebra. An examination revealed that both fuel tanks were empty and no sign of a fuel leak was found.

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 power(total) - nonmechanicalCruise - normal
Aircraft preflight - inadequatePilot in commandCause
Engine instruments,fuel quantity gage - erraticFactor
Fluid,fuel - exhaustionCause
Fuel supply - not maintainedPilot in commandCause
Forced landingLanding - flare/touchdown
Autorotation - performedPilot in command
Hard landingLanding - flare/touchdown
Terrain condition - high obstruction(s)Factor
Maneuver - performedPilot in command

Aircraft

Registration
N6145C
Reported as
Bell 47G-2
Category
Helicopter
Serial number
2182
Airframe hours
8,993
Engine
Lycoming TVO-435-25A, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 137
Operator
Robert C. Martin
Registered owner
Robert C. Martin
Departed
Harrah, WA
Destination
Harrah, WA

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
31
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
1,728 total · 673 in this make and model · 1,365 as pilot in command · 77 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
0° at 5 knots
Visibility
50 statute miles
Lowest ceiling
9,000 ft broken
Temperature
122 °F
Altimeter
29.00 inHg
Observed at
YKM, 10 nm away

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 N6145C · 3

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