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NTSB Report
August 4, 1988 · Hiller UH-12E · N5375V
Lovely, PA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 4, 1988
Injury Outcomes
2 injuries (1 fatality, 1 serious injury)
Location
Lovely, PA
Aircraft
Hiller UH-12E
Tail Number
N5375V
Injuries
Fatal
Aircraft Damage
Substantial
NTSB Number
NYC88DGM01
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.
NTSB Probable Cause
THE UNDETERMINED LOSS OF ENGINE POWER WHILE PERFORMING LOW LEVEL AERIAL APPLICATION OPERATIONS.
Full Narrative
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.
Flight
Event TypeAccident
Event Time06:30 EDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHiller UH-12E
Tail NumberN5375V
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · VO-540-C2A · Reciprocating · 305
Seats3
People & Injuries
Injury Summary2 injuries (1 fatality, 1 serious injury)
Fatal1
Serious1
Minor0
Uninjured0
Total2
Crew 1Age 38 · Second Class
Conditions
ConditionsVMC
LightDawn
Wind150° @ 2 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point70 F
Altimeter30.00 inHg
Observation Time09:52
Weather SourcePILO