Date & Time:
Dec 15, 1992 at 0912 LT
Type of aircraft:
Volpar Turboliner 18
Operator:
Mohican Air Service
Registration:
N706M
Flight Phase:
Takeoff (climb)
Flight Type:
Positioning
Survivors:
No
Schedule:
Cleveland - Syracuse
MSN:
12360
YOM:
1970
Country:
United States of America
Region:
North America
Crew on board:
1
Crew fatalities:
1
Pax on board:
0
Pax fatalities:
0
Other fatalities:
0
Total fatalities:
1
Captain / Total hours on type:
91
Aircraft flight hours:
16115
Circumstances:
After rotation, during the initial climb, the nose of the airplane pitched up to approximately 60° above the horizon. The airplane continued to climb until about 250 feet above the ground, then rolled right, pitched down and descended. The airplane impacted the ground, approximately 45° nose down, 650 feet to the right of the runway. Post accident investigation of the wreckage revealed the elevator jammed in the full up deflection. The upper end of the elevator control rod was found not connected to the elevator, but was found laying aft, wedged between the tail cone and the elevator faring, holding the elevator in the full up position. The control rod connecting bolt was found laying in the bottom of the tail cone undamaged. The washer, nut and cotter pin related to the control rod connecting bolt were not found. The elevator had been removed, recovered and then installed by company maintenance personnel 166 flight hours prior to the accident. The pilot, sole on board, was killed.
Probable cause:
The improper installation of the elevator by company maintenance personnel and the lack of proper inspections by a company certified mechanic/inspector and the faa certified mechanic with inspector authorization. A factor in this accident was an insufficiently defined maintenance procedures that allowed multiple maintenance tasks to be combined into a single line entry.
Final Report:
N706M.pdf90.46 KB
