NTSB Identification: DFW05FA192.
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Accident occurred Wednesday, July 27, 2005 in Junction, TX
Probable Cause Approval Date: 03/28/2006
Aircraft: Aero Commander 112, registration: N1029J
Injuries: 2 Fatal.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
The 7,000-hour airline transport pilot, filed an IFR flight plan for a personal cross-country flight. An A&P mechanic at the airport, heard the airplane engine start and while the airplane was taxiing, he heard the pilot do a "rolling mag check" and then depart to the north. Several witnesses on a road just north of the airport, saw the airplane low and then impact a tree near a ridgeline. Photographs of the airplane, taken by one of the witnesses prior to the airplane's impact with the trees, revealed that the airplane's flaps were extended. An on-site examination of the airplane wreckage, found the flap jack-screw extended approximately 4 7/8 inches, corresponding to a flap setting of 35 degrees. Control continuity was established for all flight controls to the cockpit, except for the right wing aileron due to fire damage. Ground propeller scars were noted approximately 23 feet from the final resting area; several pieces of angular cut tree branches were along the wreckage path, prior to the ground scars. The Medical Examiner’s report lists the pilots manner of death as natural. Additionally, the report states that the pilot died as a result of cardiac arrhythmia due to a dilated cardiomyopathy; however, the timing of the cardiac event could not be conclusively determined. The density altitude was calculated to be 3,646 feet.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The pilot's failure to attain the proper climb rate resulting in the airplane's wing colliding with a tree and subsequent impact with the ground. Contributing factors were the pilot's improper use of the airplane's flaps, and the rising terrain. Full narrative available
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