NTSB Identification: CHI90FA040.
The docket is stored on NTSB microfiche number 41994.
Accident occurred Saturday, December 09, 1989 in LINDEN, MI
Probable Cause Approval Date: 07/22/1992
Aircraft: CESSNA 172M, registration: N1326U
Injuries: 4 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 ACCIDENT AIRPLANE HAD JUST TAKEN OFF AND WAS IN INITIAL CLIMB WHEN IT WAS OBSERVED TO PITCH OVER AND DESCEND INTO THE GROUND. THERE WERE NO MECHANICAL DEFECTS DISCOVERED IN EITHER THE POWERPLANT OR AIRFRAME. A POST ACCIDENT COMPUTATION OF THE AIRCRAFT WEIGHT SHOWED IT TO BE 2527 POUNDS. THIS IS 227 POUNDS OVER THE 2300 POUNDS ALLOWABLE GROSS WEIGHT.

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

THE FAILURE OF THE PILOT TO MAINTAIN SUFFICIENT SPEED FOR FLIGHT. A FACTOR ASSOCIATED WITH THE ACCIDENT WAS THE PILOT'S OPERATION OF THE AIRPLANE ABOVE THE MAXIMUM ALLOWABLE GROSS WEIGHT.

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