FTW89DRA01

NTSB accident investigation · Hughes 369D · Kountze, TX · December 12, 1988

Accident · Minor injuriesFinal report
Date
December 12, 1988, 14:18 local (20:18 UTC)
Place
Kountze, TX
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N58261Hughes 369D
Weather
Visual (VMC) · Day
Status
Completed · report January 16, 1990
Report
Approved by Office Director
FAA report
19881212054029A
Case key
22714

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

False indications of the fuel quantity system, which led the pilot to believe ha had more fuel than he did.

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 powerManeuvering - aerial application
Planning/decision - improperPilot in commandCause
Fuel system,fuel quantity float/sensor - false indicationFactor
Fluid,fuel - exhaustionCause
Fuel supply - inadequatePilot in commandCause
Forced landingDescent - emergency
Hard landingLanding
External load sling/harness - otherFactor
Load jettison - not possible
Terrain condition - high obstruction(s)Factor
External load sling/harness - entangledFactor

Analysis

The helicopter was being used to dispense fertilizer from a bucket on a line. When the engine lost power from fuel exhaustion, the plt tried to drop the bucket, but it would not release. Subsequently, the bucket & line became tangled in trees & the helicopter touched down hard on the front end of the left skid. The tailboom was chopped off & the helicopter came to rest on its side. The plt rprtd that during the flt, he noticed the fuel gauge reading seemed to stay at about 120 lbs, but he did not suspect a problem, since he had never had a previous problem with the gauge.

Aircraft

Registration
N58261
Reported as
Hughes 369D
Category
Helicopter
Serial number
1280417D
Airframe hours
6,273
Engine
Allison 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Aerial application · Part 133
Operator
Gradney Helicopters
Registered owner
Gradney Helicopters, Inc
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · November 27, 1988 · 30 hours before

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
6,000 total · 2,700 in this make and model · 5,900 as pilot in command · 300 in the last 90 days · 50 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 11 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
54 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
BPT, 25 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.