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NTSB Report
August 1, 1992 · Hughes 269C · N58335
Aurora, IL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 1, 1992
Injury Outcomes
No injuries (2 uninjured)
Location
Aurora, IL
Aircraft
Hughes 269C
Tail Number
N58335
Operator
Great Lakes Helicopter Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI92LA222
THE PILOT FELT A YAW, LOSS OF POWER AND DECREASE IN ROTOR RPM DURING CRUISE. HE TURNED TOWARD HOMEFIELD AND BEGAN A DESCENT. ENROUTE, THE ENGINE LOST POWER COMPLETELY, AND HE LANDED HARD IN AN OPEN FIELD. ENGINE EXAMINATION REVEALED THE CRANKSHAFT SEPARATED AT A FATIGUE FRACTURE THROUGH THE NUMBER FOUR ROD JOURNAL.
NTSB Probable Cause
FATIGUE FRACTURE OF THE ENGINE CRANKSHAFT RESULTING IN LOSS OF POWER. FACTORS WERE THE PILOT'S EXCESSIVE DESCENT AND HIS LACK OF TOTAL EXPERIENCE.
Full Narrative
THE PILOT FELT A YAW, LOSS OF POWER AND DECREASE IN ROTOR RPM DURING CRUISE. HE TURNED TOWARD HOMEFIELD AND BEGAN A DESCENT. ENROUTE, THE ENGINE LOST POWER COMPLETELY, AND HE LANDED HARD IN AN OPEN FIELD. ENGINE EXAMINATION REVEALED THE CRANKSHAFT SEPARATED AT A FATIGUE FRACTURE THROUGH THE NUMBER FOUR ROD JOURNAL.
Flight
Event TypeAccident
Event Time10:58 CDT
Nearest AirportAurora Municipal (4nm E)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 269C
Tail NumberN58335
Aircraft CategoryHeli
DamageSubstantial
OperatorGreat Lakes Helicopter Service
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360-D1A · Reciprocating · 190
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 29 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 7 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter30.00 inHg
Observation Time15:45
Weather SourceWFAC