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NTSB Report
January 22, 1982 · Sons Mustang II · N13JL
Lancaster, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
January 22, 1982
Injury Outcomes
2 injuries (2 fatalities)
Location
Lancaster, CA
Aircraft
Sons Mustang II
Tail Number
N13JL
Operator
K Segrest
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX82FUQ09
THE PURPOSE OF THE FLIGHT WAS TO DEMONSTRATE THE AIRCRAFT TO A PROSPECTIVE BUYER. ABOUT 20 TO 30 MINUTES AFTER TAKEOFF, WITNESSES OBSERVED THE AIRCRAFT IN A CIRCLING DESCENT. AT 500 TO 700 FT AGL, THE DESCENT ANGLE SUDDENLY INCREASED TO NEARLY VERTICAL AND THE PLANE CRASHED. ONE WITNESS NOTED A CONSPICUOUS ABSENCE OF ENGINE NOISE. AN INVESTIGATION REVEALED THAT THE SHAFT ON THE FUEL SELECTOR VALVE WAS BROKEN BETWEEN THE SELECTOR HANDLE AND THE INTERNAL MECHANISM OF THE VALUE. THERE WAS EVIDENCE THAT THE SHAFT HAD BEEN PARTIALLY BROKEN FOR SOME TIME PRIOR TO THE ACCIDENT. TRACES OF FUEL WERE EVIDENT AT THE LEFT AND RIGHT INLET PORTS TO THE VALVE. HOWEVER, NO FUEL WAS EVIDENT IN THE FUEL SYSTEM, FORWARD FROM THE FUEL SELECTOR. A TEARDOWN DISCLOSED THAT THE FUEL SELECTOR VALVE WAS IN THE OFF POSITION.
Full Narrative
THE PURPOSE OF THE FLIGHT WAS TO DEMONSTRATE THE AIRCRAFT TO A PROSPECTIVE BUYER. ABOUT 20 TO 30 MINUTES AFTER TAKEOFF, WITNESSES OBSERVED THE AIRCRAFT IN A CIRCLING DESCENT. AT 500 TO 700 FT AGL, THE DESCENT ANGLE SUDDENLY INCREASED TO NEARLY VERTICAL AND THE PLANE CRASHED. ONE WITNESS NOTED A CONSPICUOUS ABSENCE OF ENGINE NOISE. AN INVESTIGATION REVEALED THAT THE SHAFT ON THE FUEL SELECTOR VALVE WAS BROKEN BETWEEN THE SELECTOR HANDLE AND THE INTERNAL MECHANISM OF THE VALUE. THERE WAS EVIDENCE THAT THE SHAFT HAD BEEN PARTIALLY BROKEN FOR SOME TIME PRIOR TO THE ACCIDENT. TRACES OF FUEL WERE EVIDENT AT THE LEFT AND RIGHT INLET PORTS TO THE VALVE. HOWEVER, NO FUEL WAS EVIDENT IN THE FUEL SYSTEM, FORWARD FROM THE FUEL SELECTOR. A TEARDOWN DISCLOSED THAT THE FUEL SELECTOR VALVE WAS IN THE OFF POSITION.
Flight
Event TypeAccident
Event Time14:59 PST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSons Mustang II
Tail NumberN13JL
Aircraft CategoryAir
DamageDestroyed
OperatorK Segrest
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-360D · Reciprocating · 210
Seats2
People & Injuries
Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 32 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 11 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point11 C / 0 C
Altimeter30.00 inHg