# Accident 20080624839509A: Gulstm 500S, June 24, 2008

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 24, 2008, 10:20 local time
- Damage: Destroyed
- Phase of flight: Practice Training Manuevers
- Operating rules: Air taxi and commuter (Part 135)
- Operator: ZJWA
- Location: 39.2397° N, 95.8889° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=39.2397&lon=-95.8889&mi=10
- Aircraft: N411JT, a cancelled registration (https://openairdocs.org/deregistered/N411JT-2015-05-05) (OpenAirDocs)
- Registry model: Aero Commander 500 S (registry code 0141107, https://openairdocs.org/model/aero-commander-500-s) (OpenAirDocs)
- Registry engine: Lycoming TI0-540 series (registry code 41533, https://openairdocs.org/engine/lycoming-ti0-540-series) (OpenAirDocs)
- Reported make and model: GULSTM 500S
- Reported engine: LYC TIO540*
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 15,000 total, 13,000 in this make and model, 100 in the last 90 days
- NTSB investigation: [NTSB DEN08FA114](https://openairdocs.org/ntsb/DEN08FA114) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20080624839509A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23)PRIOR TO THE ACCIDENT, ATC RADAR DISPLAY SHOWED THE AIRCRAFT MANEUVERING EAST OF KLWC AT APPROXIMATELY 2,200' MSL, WITH THE LAST RADAR RETURN SHOWING 2,000' (TERRAIN ELEVATION 813').  THREE WITNESSES WHO WERE SURVEYING A FIELD ADJACENT TO THE CRASH SITE STATED THAT THEY SAW THE AIRCRAFT IN LEVEL FLIGHT WHEN THE ENGINES QUIT ABRUPTLY, AND THE AIRPLANE PITCHED DOWN AND CRASHED.  POST-ACCIDENT INVESTIGATION INDICATED THAT BOTH PROPELLERS WERE IN THEIR LOW PITCH POSITION WITH DAMAGE CONSISTENT WITH LOW RPM ROTATIONAL FORCES.  THE FUEL LINES TO THE BOOST PUMPS, AND THE LINES FROM THE PUMPS TO THE FUEL INJECTOR DIVIDERS, WERE DEVOID OF FUEL ON BOTH ENGINES;HOWEVER, BOTH FUEL VALVES WERE FOUND IN THEIR OPEN POSITION.  THE FUEL VALVE AND BOOST PUMP SWITCHES FOR EACH ENGINE ARE NEXT TO EACH OTHER ON THE COCKPIT OVERHEAD PANEL.  WHILE THE FUEL VALVES MUST BE ON DURING FLIGHT OPERATIONS, THE COMPANY CHECK LIST CALLS FOR THE BOOST PUMP SWITCHES TO BE PLACED IN THE OFF POSITION AT THE COMPLETION OF MANEUVERING FLIGHT.

## The NTSB's investigation of this event (1)

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.

- [NTSB DEN08FA114](https://openairdocs.org/ntsb/DEN08FA114), Jun 24, 2008: Aero Commander 500S (N411JT), Linwood, KS, destroyed, 2 fatal. Probable cause: The pilot-in-training inadvertently shutting off both engine fuel control valves causing a loss of power in both engines, and the pilot's failure to maintain control of the airplane resulting in a…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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