NYC88DGM01

NTSB accident investigation · Hiller UH-12E · Lovely, PA · August 4, 1988

Accident · FatalFinal report
Date
August 4, 1988, 06:30 local (10:30 UTC)
Place
Lovely, PA
Injuries
1 fatal, 1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N5375VHiller UH-12E
Weather
Visual (VMC) · Dawn
Status
Completed · report March 25, 1991
Report
Approved by Office Director
FAA report
19880804030139A
Case key
30755

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 undetermined loss of engine power while performing low level aerial application operations.

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
Powerplant - undeterminedCause
In flight collision with terrain/waterDescent - emergency
Terrain condition - high vegetation
Terrain condition - none suitable

Analysis

The pilot and the observer/passenger were performing aerial application operations along a powerline right-of-way when the helicopter experienced a loss of engine power. The pilot stated that he attempted to turn right and climb to avoid obstacles, but the engine did not produce full power when he added full thorttle. The helicopter 'settled and crashed' in an area of tall trees. Post-accident investigation included an engine teardown, which revealed evidence of overheating due to lack of lubrication.

Aircraft

Registration
N5375V
Reported as
Hiller UH-12E
Category
Helicopter
Serial number
2072
Airframe hours
8,189
Engine
Lycoming VO-540-C2A, 305 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Helicopter Minit-Men, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Unknown · July 14, 1988 · 21 hours before
Departed
Load Site

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
38
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
3,419 total · 1,735 in this make and model · 3,090 as pilot in command · 171 in the last 90 days · 32 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dawn
Wind
150° at 2 knots
Visibility
7 statute miles
Temperature
72 °F, dew point 70 °F
Altimeter
30.00 inHg
Observed at
A00, 15 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.