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NTSB Report
July 8, 1992 · Ayres S2R · N4979X
Grady, AR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 8, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Grady, AR
Aircraft
Ayres S2R
Tail Number
N4979X
Operator
Dirty Bird
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW92DPG07
DURING A FORCED LANDING DUE TO LOSS OF ENGINE POWER THE AIRPLANE STRUCK A TREE WITH THE RIGHT WING. FOLLOWING THE TREE STRIKE THE AIRPLANE YAWED AND SLOWED DOWN. INITIAL GROUND CONTACT WAS WITH THE RIGHT WING, THIS CAUSED THE AIRPLANE TO ROTATE CLOCKWISE, RESULTING IN THE LANDING GEAR COLLAPSING. AN INSPECTION OF THE AIRPLANE REVEALED THAT THE NUMBER 1 CYLINDER HAD FAILED AND SEPARATED FROM THE ENGINE.
NTSB Probable Cause
THE LOSS OF ENGINE POWER DUE TO THE SEPARATION OF THE NUMBER ONE ENGINE CYLINDER. A FACTOR WAS THE UNSUITABLE TERRAIN.
Full Narrative
DURING A FORCED LANDING DUE TO LOSS OF ENGINE POWER THE AIRPLANE STRUCK A TREE WITH THE RIGHT WING. FOLLOWING THE TREE STRIKE THE AIRPLANE YAWED AND SLOWED DOWN. INITIAL GROUND CONTACT WAS WITH THE RIGHT WING, THIS CAUSED THE AIRPLANE TO ROTATE CLOCKWISE, RESULTING IN THE LANDING GEAR COLLAPSING. AN INSPECTION OF THE AIRPLANE REVEALED THAT THE NUMBER 1 CYLINDER HAD FAILED AND SEPARATED FROM THE ENGINE.
Flight
Event TypeAccident
Event Time10:30 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAyres S2R
Tail NumberN4979X
Aircraft CategoryAir
DamageSubstantial
OperatorDirty Bird
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340-AN-1 · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 67 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind21° @ 6 kt
Visibility5 sm
CeilingNone
Altimeter30.00 inHg
Weather SourcePILO