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NTSB Report
February 19, 1984 · Grumman G-164B · N6558K
Dawson, GA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
February 19, 1984
Injury Outcomes
1 injury (1 fatality)
Location
Dawson, GA
Aircraft
Grumman G-164B
Tail Number
N6558K
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
ATL84FA105
A FAILED CYLINDER HEAD ASSEMBLY RESULTED IN A TOTAL POWER LOSS VERY SHORTLY AFTER TAKEOFF. WITNESSES OBSERVED THE AERIAL APPLICATION ACFT AT 30-50 FT AGL OVER THE RWY BEFORE IT PULLED UP STEEPLY, ROLLED AND ENTERED A NEAR VERTICAL UNCONTROLLED DESCENT TO IMPACT. A POST CRASH FIRE CONSUMED MOST OF THE WRECKAGE. DESPITE OPEN LEVEL TERRAIN OFF THE END OF THE RWY, THE PLT ATTEMPTED TO RETURN TO THE RWY FOR A FORCED LDG. A METALLURGICAL EXAMINATION OF THE FAILED CYLINDER HEAD REVEALED EXTENSIVE FATIGUE CRACKING INITIATED IN THE CYLINDER LINER THREAD ROOTS AND BETWEEN THE COOLING FINS AT THE TOP OF THE CYLINDER.
Full Narrative
A FAILED CYLINDER HEAD ASSEMBLY RESULTED IN A TOTAL POWER LOSS VERY SHORTLY AFTER TAKEOFF. WITNESSES OBSERVED THE AERIAL APPLICATION ACFT AT 30-50 FT AGL OVER THE RWY BEFORE IT PULLED UP STEEPLY, ROLLED AND ENTERED A NEAR VERTICAL UNCONTROLLED DESCENT TO IMPACT. A POST CRASH FIRE CONSUMED MOST OF THE WRECKAGE. DESPITE OPEN LEVEL TERRAIN OFF THE END OF THE RWY, THE PLT ATTEMPTED TO RETURN TO THE RWY FOR A FORCED LDG. A METALLURGICAL EXAMINATION OF THE FAILED CYLINDER HEAD REVEALED EXTENSIVE FATIGUE CRACKING INITIATED IN THE CYLINDER LINER THREAD ROOTS AND BETWEEN THE COOLING FINS AT THE TOP OF THE CYLINDER.
Flight
Event TypeAccident
Event Time08:30 EST
Nearest AirportDawson Municipal (0nm N)
Runway13
Runway Length300 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-164B
Tail NumberN6558K
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R985-AN14B · Reciprocating · 450
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 44 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility5 sm
CeilingOvercast 25000 ft
Temperature / Dew Point57 / 52
Altimeter30.00 inHg
Observation Time13:55
Weather SourceWFAC