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NTSB Report
March 28, 1992 · Mooney M20D · N1975Y
Cumberland Is., GA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 28, 1992
Injury Outcomes
1 injury (1 minor injury)
Location
Cumberland Is., GA
Aircraft
Mooney M20D
Tail Number
N1975Y
Operator
Davis J R & Hill M L
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ATL92LA071
AT ABOUT 60-70 FEET ABOVE THE GROUND, DURING THE INITIAL CLIMB AFTER TAKE OFF, THE ENGINE RPM DECREASED. HARDWOOD TREES BOUNDED THE RUNWAY DEPARTURE THRESHOLD & THE PILOT ELECTED TO TURN BACK TO THE AIRSTRIP. THE AIRPLANE STALLED, DRAGGED THE RIGHT WING TIP, & COLLIDED WITH THE GROUND. THE PILOT STATED THAT A SPARK PLUG BLEW OUT & THAT THE CYLINDER SPARK PLUG HOLE WAS FITTED WITH A HELICOIL.
NTSB Probable Cause
THE LOSS OF THE SPARK PLUG AT A CRITICAL POINT IN FLIGHT WHICH RESULTED FROM THE INADEQUATE OVERHAUL OF THE ENGINE BY AN UNKNOWN PERSON; AND THE INADVERTENT STALL OF THE AIRPLANE WHEN THE PILOT FAILED TO MAINTAIN AIRSPEED. A FACTOR WAS THE HIGH OBSTRUCTIONS (TREES) WHICH BOUNDED THE RUNWAY DEPARTURE THRESHOLD.
Full Narrative
AT ABOUT 60-70 FEET ABOVE THE GROUND, DURING THE INITIAL CLIMB AFTER TAKE OFF, THE ENGINE RPM DECREASED. HARDWOOD TREES BOUNDED THE RUNWAY DEPARTURE THRESHOLD & THE PILOT ELECTED TO TURN BACK TO THE AIRSTRIP. THE AIRPLANE STALLED, DRAGGED THE RIGHT WING TIP, & COLLIDED WITH THE GROUND. THE PILOT STATED THAT A SPARK PLUG BLEW OUT & THAT THE CYLINDER SPARK PLUG HOLE WAS FITTED WITH A HELICOIL.
Flight
Event TypeAccident
Event Time17:00 EST
Nearest AirportCumberland Is. (0nm)
Runway22
Runway Length2500 ft
Runway Width25 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMooney M20D
Tail NumberN1975Y
Aircraft CategoryAir
DamageSubstantial
OperatorDavis J R & Hill M L
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360 · Reciprocating · 180
Seats4
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 53 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind130° @ 7 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point57 / 45 C
Altimeter30.00 inHg
Observation Time22:47
Weather SourceWFAC