# NTSB LAX82FUQ09: Sons Mustang II, N13JL, Lancaster, CA, January 22, 1982

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: January 22, 1982, 14:59 local (22:59 UTC)
- Place: Lancaster, CA
- Coordinates: 34.719917, -118.150085 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.7199&lon=-118.1501&mi=10
- Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report January 22, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71349
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX82FUQ09
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71349/pdf
- Page: https://openairdocs.org/ntsb/LAX82FUQ09

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - mech failure/malf, unknown
  - fuel system,selector/valve - undetermined (cause)
  - fluid,fuel - starvation (cause)
- Forced landing, descent - emergency
- Loss of control - in flight, approach
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

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.

## Aircraft

- Registration: [N13JL](https://openairdocs.org/deregistered/N13JL-2014-09-03), registration cancelled 2014-09-03, S/N RG-56-1067, built 1975 (OpenAirDocs)
- Reported make and model: SONS MUSTANG II
- Registry model: [Sons MUSTANG II](https://openairdocs.org/model/sons-mustang-ii) (registry code 1690410) (OpenAirDocs)
- Registry engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: RG-56-1067
- Engines: CONTINENTAL IO-360D 210 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 91
- Operator: K. Segrest
- Registered owner: K. Segrest
- Departed: WILLIAM FOX, CA
- Destination: WILLIAM FOX, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; private; airplane ratings: single-engine sea, multi-engine land, single-engine land, multi-engine sea; medical: class 1, valid medical--no waivers/lim.; flight hours: 488 total, 30 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 11 knots
- Visibility: 40 statute miles
- Temperature: 111 °F
- Altimeter: 30.00 inHg
- Observed at: LAN

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19820122001609A](https://openairdocs.org/incident/19820122001609A), Jan 22, 1982: Amtrbb MUSTANG2, Lancaster, CA, Substantial damage. Aircraft crashed after stall during emergency landing attempt. Engine quit due to apparent fuel starvation.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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