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NTSB Report
July 25, 1992 · Piper PA-38-112 · N9240T
Carrollton, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 25, 1992
Injury Outcomes
1 injury (1 serious injury)
Location
Carrollton, TX
Aircraft
Piper PA-38-112
Tail Number
N9240T
Operator
Stramel Aviation
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
FTW92LA188
THE PILOT WAS DESCENDING THE AIRPLANE INTO THE CONTROL ZONE AND HAD RECEIVED CLEARANCE TO ENTER A RIGHT BASE FOR RUNWAY 15 WHEN THE ENGINE QUIT AFTER HE APPLIED CARBURETOR HEAT. THE PILOT MADE A 180 DEGREE TURN AND DESCENDED OVER ONE OPEN GRASS FIELD AS HE ATTEMPTED TO GLIDE TO A DIRT FIELD. A FENCE AND A RAILROAD TRACK LAY BETWEEN THE FIELDS. THE AIRPLANE STRUCK THE FENCE, ROTATED APPROXIMATELY 180 DEGREES, AND DESCENDED OUT OF CONTROL TO IMPACT THE TERRAIN NEAR THE RAILROAD TRACKS. THE INVESTIGATION REVEALED THE MAIN VALVE FOR THE CARBURETOR HEAT BOX HAD FAILED AND WAS SUCKED INTO THE CARBURETOR INLET, BLOCKING AIR FLOW, AND RENDERED THE CARBURETOR INOPERATIVE. FURTHER INVESTIGATION REVEALED THAT PORTIONS OF THE VALVE ASSEMBLY HAD BEEN FAILING FOR AN UNSPECIFIED TIME PRIOR TO THE ACCIDENT AND ITS' RETAINING SCREWS HAD NOT BEEN SECURED PROPERLY.
NTSB Probable Cause
THE PILOT'S SELECTION OF UNSUITABLE TERRAIN. FACTORS WERE THE FAILED CARBURETOR DE-ICE SYSTEM VALVE RESULTING IN AN INOPERATIVE CARBURETOR AND THE INADEQUATE ANNUAL INSPECTION BY COMPANY MAINTENANCE PERSONNEL.
Full Narrative
THE PILOT WAS DESCENDING THE AIRPLANE INTO THE CONTROL ZONE AND HAD RECEIVED CLEARANCE TO ENTER A RIGHT BASE FOR RUNWAY 15 WHEN THE ENGINE QUIT AFTER HE APPLIED CARBURETOR HEAT. THE PILOT MADE A 180 DEGREE TURN AND DESCENDED OVER ONE OPEN GRASS FIELD AS HE ATTEMPTED TO GLIDE TO A DIRT FIELD. A FENCE AND A RAILROAD TRACK LAY BETWEEN THE FIELDS. THE AIRPLANE STRUCK THE FENCE, ROTATED APPROXIMATELY 180 DEGREES, AND DESCENDED OUT OF CONTROL TO IMPACT THE TERRAIN NEAR THE RAILROAD TRACKS. THE INVESTIGATION REVEALED THE MAIN VALVE FOR THE CARBURETOR HEAT BOX HAD FAILED AND WAS SUCKED INTO THE CARBURETOR INLET, BLOCKING AIR FLOW, AND RENDERED THE CARBURETOR INOPERATIVE. FURTHER INVESTIGATION REVEALED THAT PORTIONS OF THE VALVE ASSEMBLY HAD BEEN FAILING FOR AN UNSPECIFIED TIME PRIOR TO THE ACCIDENT AND ITS' RETAINING SCREWS HAD NOT BEEN SECURED PROPERLY.
Flight
Event TypeAccident
Event Time14:00 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-38-112
Tail NumberN9240T
Aircraft CategoryAir
DamageDestroyed
OperatorStramel Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-L2C · Reciprocating · 112
Seats2
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 31 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind250° @ 5 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point64 F
Altimeter30.00 inHg
Observation Time20:37
Weather SourceWFAC