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NTSB Report
July 29, 1983 · Hughes 269B · N9419F
Summerville, SC
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 29, 1983
Injury Outcomes
No injuries (1 uninjured)
Location
Summerville, SC
Aircraft
Hughes 269B
Tail Number
N9419F
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL83LA297
THE HELICOPTER WAS BEING USED IN CONTROLLED BURNING OF TIMBERLAND. WHILE BEING OPERATED AT AN ALT OF APRX 20 FT OVER WIND ROWS OF ORGANIC MATERIAL, THERE WAS A PARTIAL LOSS OF ENG POWER. THE PLT STATED THAT HE WAS UNABLE TO MAINTAIN A HOVER, SO HE LANDED ON THE ROUGH TERRAIN. AFTER TOUCHDOWN, THE HELICOPTER ROLLED OVER & THE MAIN ROTOR BLADES CONTACTED THE GROUND, DURING AN EXAM OF THE ENG, ALL 8 SPARK PLUGS WERE FOUND WITH EVIDENCE OF LEAD FOULING. IN THE #4 CYLINDER, THE ELECTRODES OF THE BOTTOM PLUG WAS COMPLETELY BRIDGED WITH LEAD. THE PLT STATED THAT THE TOP PLUG IN THAT CYLINDER WAS DIRTY WITH CARBON.
Full Narrative
THE HELICOPTER WAS BEING USED IN CONTROLLED BURNING OF TIMBERLAND. WHILE BEING OPERATED AT AN ALT OF APRX 20 FT OVER WIND ROWS OF ORGANIC MATERIAL, THERE WAS A PARTIAL LOSS OF ENG POWER. THE PLT STATED THAT HE WAS UNABLE TO MAINTAIN A HOVER, SO HE LANDED ON THE ROUGH TERRAIN. AFTER TOUCHDOWN, THE HELICOPTER ROLLED OVER & THE MAIN ROTOR BLADES CONTACTED THE GROUND, DURING AN EXAM OF THE ENG, ALL 8 SPARK PLUGS WERE FOUND WITH EVIDENCE OF LEAD FOULING. IN THE #4 CYLINDER, THE ELECTRODES OF THE BOTTOM PLUG WAS COMPLETELY BRIDGED WITH LEAD. THE PLT STATED THAT THE TOP PLUG IN THAT CYLINDER WAS DIRTY WITH CARBON.
Flight
Event TypeAccident
Event Time13:45 EDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 269B
Tail NumberN9419F
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360-A1A · Reciprocating · 180
Seats3
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 54 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 6 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourceWIT