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NTSB Report
July 28, 1988 · Hughes 369HS · N9033F
Ashland, IL
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 28, 1988
Injury Outcomes
No injuries (1 uninjured)
Location
Ashland, IL
Aircraft
Hughes 369HS
Tail Number
N9033F
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI88DEV03
AS THE HELICOPTER WAS TAKING OFF, THERE WAS A LOSS OF ROTOR RPM WHICH WAS ACCOMPANIED BY A LOSS OF FUEL FLOW TO THE ENG. THE PLT ABORTED THE TAKEOFF, BUT DURING TOUCHDOWN, THE MAIN ROTOR BLADES FLEXED DOWNWARD & SEVERED THE . TAIL BOOM. AN INSPN OF THE ENG REVEALED A 'B' NUT ON AN AIR LINE BETWEEN THE GOVERNOR & FUEL CONTROL UNIT WAS CRACKED & LOOSE, WHICH PERMITTED SYSTEM LEAKAGE.
Full Narrative
AS THE HELICOPTER WAS TAKING OFF, THERE WAS A LOSS OF ROTOR RPM WHICH WAS ACCOMPANIED BY A LOSS OF FUEL FLOW TO THE ENG. THE PLT ABORTED THE TAKEOFF, BUT DURING TOUCHDOWN, THE MAIN ROTOR BLADES FLEXED DOWNWARD & SEVERED THE . TAIL BOOM. AN INSPN OF THE ENG REVEALED A 'B' NUT ON AN AIR LINE BETWEEN THE GOVERNOR & FUEL CONTROL UNIT WAS CRACKED & LOOSE, WHICH PERMITTED SYSTEM LEAKAGE.
Flight
Event TypeAccident
Event Time11:45 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 369HS
Tail NumberN9033F
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20 · Turboshaft · 400
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 50 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 6 kt
Visibility6 sm
CeilingNone
Temperature / Dew Point63 F
Altimeter30.00 inHg
Weather SourcePILO