SEA97LA119

NTSB accident investigation · Garlick UH-1H · Lolo, MT · May 22, 1997

Accident · No injuriesLimited investigationFinal report
Date
May 22, 1997, 11:30 local (17:30 UTC)
Place
Lolo, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N95NWGarlick UH-1H
Weather
Visual (VMC) · Day
Status
Completed · report April 10, 1998
Report
Approved by Office Director
FAA report
19970522047969A
Case key
42613

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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Probable cause

Fuel exhaustion due to the pilot's failure to refuel.

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) - nonmechanicalManeuvering
Fuel system - exhaustionCause
Refueling - not performedPilot in commandCause
Forced landingEmergency descent/landing
Hard landingEmergency descent/landing

Analysis

The pilot reported that his fuel gauge showed 150 lbs of fuel remaining and he decided to move a large stump prior to landing. As he was hovering about 150 feet over the stump waiting for the stump to be hooked up, the helicopter suddenly lost power. He made a tight spiral down to the service landing area, but landed very hard.

Factual narrative

On May 22, 1997, approximately 1130 mountain daylight time, N95NW, a Bell UH-1H, sustained substantial damage when it lost power and landed hard near Lolo, Montana. The commercial pilot was not injured. The flight was conducted in visual meteorological conditions with no flight plan filed. The flight had departed the same area about 1010.

The pilot reported that the fuel gauge showed 150 pounds and he decided to remove a large stump to the slash pile prior to landing. The stump was situated approximately 40 feet from the service landing area. As he was hovering about 150 feet over the stump waiting for the stump to be hooked up, the helicopter suddenly lost power. He made a tight spiral down to the service landing area, but landed very hard. The operator reported no mechanical malfunctions and listed the engine failure as "fuel exhaustion". An FAA inspector who inspected the wreckage, stated that a total of about 1 and 1/2 gal of fuel was drained from the tanks.

Aircraft

Registration
N95NW
Reported as
Garlick UH-1H
Category
Helicopter
Serial number
65-12871
Engine
Lycoming T53-L-13B, 1,400 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 133
Operator
Northwest Helicopters
Registered owner
Reynolds Aviation Inc.
Airworthiness certificate
Special, Restricted (Special)

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
50
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Helicopter
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
8,197 total · 2,613 in this make and model

Weather

Conditions
Visual (VMC) · Day
Lowest ceiling
None
Temperature
70 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.