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NTSB Report
July 27, 1991 · Ayres S2R · N3087D
Visalia, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 27, 1991
Injury Outcomes
1 injury (1 serious injury)
Location
Visalia, CA
Aircraft
Ayres S2R
Tail Number
N3087D
Operator
Gilbert Aviation Industries
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
LAX91LA331
THE AGRICULTURAL AIRCRAFT EXPERIENCED A LOSS OF ENGINE POWER AND COLLIDED WITH THE TERRAIN DURING A SPRAYING OPERATION. AN EXTERNAL EXAMINATION OF THE ENGINE REVEALED THAT THE MASTER ROD TO THE NUMBER 1 CYLINDER HAD FAILED. ALSO NOTED WAS A LACK OF OIL IN THE ENGINE OIL SUMP. NO OTHER DISCREPANCIES WERE NOTED.
NTSB Probable Cause
A LOSS OF ENGINE POWER DUE TO THE FAILURE OF THE MASTER ROD TO THE NUMBER ONE CYLINDER RESULTING FROM A LACK OF OIL.
Full Narrative
THE AGRICULTURAL AIRCRAFT EXPERIENCED A LOSS OF ENGINE POWER AND COLLIDED WITH THE TERRAIN DURING A SPRAYING OPERATION. AN EXTERNAL EXAMINATION OF THE ENGINE REVEALED THAT THE MASTER ROD TO THE NUMBER 1 CYLINDER HAD FAILED. ALSO NOTED WAS A LACK OF OIL IN THE ENGINE OIL SUMP. NO OTHER DISCREPANCIES WERE NOTED.
Flight
Event TypeAccident
Event Time11:30 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftAyres S2R
Tail NumberN3087D
Aircraft CategoryAir
DamageDestroyed
OperatorGilbert Aviation Industries
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsWright · R1820-97 · Reciprocating · 1200
Seats2
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 40 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO