NTSB Identification: IAD04LA023.
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Accident occurred Monday, May 17, 2004 in Old Town, ME
Probable Cause Approval Date: 01/24/2005
Aircraft: Cessna 150, registration: N7793E
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot stated that during the takeoff roll, when the airplane reached about 1/3 the runway's length (about 1,060 feet), he thought it should have been airborne. At 2/3 the runway's length (about 2,120 feet), the pilot knew he had a problem, but "rotated" the airplane at 40 knots and became airborne. After rotation, he felt that the engine was not developing full power, and was "sluggish and lacking horsepower." The pilot briefly employed carburetor heat, then attempted to adjust the engine's mixture control; however, neither adjustment improved the airplane's performance. After bouncing once in a field, the pilot was able to land the airplane on an interstate median, where it nosed over in muddy terrain. There was no evidence of mechanical malfunction. Computation of weight and balance information provided by the pilot revealed that the airplane was 184 pounds over maximum gross weight at takeoff. Performance data revealed that an airplane at maximum gross weight should have been airborne in less than 600 feet of runway distance.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot's failure to abort the takeoff. Factors were the pilot's incorrect assessment of the airplane's weight and the muddy terrain.

Full narrative available

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