IAD96LA067

NTSB accident investigation · Bell 206B · Logan, WV · April 26, 1996

Accident · No injuriesLimited investigationFinal report
Date
April 26, 1996, 09:45 local (13:45 UTC)
Place
Logan, WV
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N111PMBell 206B
Weather
Visual (VMC) · Day
Status
Completed · report October 22, 1996
Report
Approved by Office Director
FAA report
19960426009119A
Case key
28041

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

the pilot's failure to maintain an adequate fuel supply for the flight which resulted in a loss of engine power due to fuel exhaustion, and the loss of rotor rpm during the autorotation. The downhill sloping terrain was a related factor.

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
Fluid,fuel - exhaustionCause
Fuel supply - inadequatePilot in commandCause
Forced landingEmergency descent/landing
Hard landingEmergency descent/landing
Autorotation - performedPilot in command
Terrain condition - downhillFactor
Adequate rotor rpm - not availablePilot in commandCause

Analysis

The pilot reported that the helicopter was in cruise flight at 600 feet above ground level when the engine lost power. He entered an autorotational descent, but was forced to try to extend the glide because of rough, downhill sloping terrain. The rotor RPM decayed, and at touchdown the main rotor flexed down and severed the tail boom. Postaccident inspection revealed '...less than (1) one quart [of fuel] available in fuel cell.' The pilot reported that he had exhausted the helicopter's fuel supply.

Factual narrative

On April 26, 1996, at 0945 eastern daylight time (EDT), a Bell 206B helicopter, N111PM, sustained substantial damage following a forced landing near Logan, West Virginia. The pilot and the two passengers reported no injuries. Visual meteorological conditions prevailed at the time of the accident, no flight plan was filed. The business flight was conducted under 14 CFR 91, and originated in Huntington, West Virginia, at 0815 EDT. The intended destination was Rita, West Virginia.

The pilot told the Federal Aviation Administration (FAA) Inspectors that he was in cruise flight at 600 feet above ground level (AGL), when the helicopter engine lost power. He reported that he initiated an autorotational descent. The pilot stated that, due to rough and sloping terrain, he was forced to extend his glide to landing. The pilot stated: "Due to low rotor rpm, the main rotor flexed on touchdown and severed the rear portion of tailboom."

The FAA Inspector's report stated: "Interview with [the] pilot revealed [that the] engine flameout occurred due to fuel exhaustion. Pilot admitted to having inadequate fuel on board. Aircraft was approximately 2 minutes from intended fuel stop. Pilot stated [that he had] no recollection [of] low fuel warning/alert." Postaccident examination of the helicopter revealed less than 1 quart of fuel in the fuel cell. FAA Inspectors stated that the helicopter's fuel quantity and low fuel warning systems appeared to be capable of normal operation.

Aircraft

Registration
N111PM
Reported as
Bell 206B
Category
Helicopter
Serial number
1770
Airframe hours
9,158
Engine
Allison 250-C20, 400 horsepower, turbo shaft
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Pittston Coal Company
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · March 4, 1996 · 93 hours before
Departed
HTS · Huntington, WV
Destination
Rita, WV

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
52
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
15,340 total · 11,200 in this make and model · 14,500 as pilot in command · 180 in the last 90 days · 60 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 6 knots
Visibility
7 statute miles
Lowest ceiling
3,000 ft broken
Temperature
45 °F
Altimeter
29.00 inHg
Observed at
BLF, 48 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 N111PM · 1

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