NTSB Identification: SEA83LA102.
The docket is stored on NTSB microfiche number 20403.
Accident occurred Friday, May 20, 1983 in IDAHO FALLS, ID
Aircraft: CESSNA TRI82, registration: N757SP
Injuries: 1 Serious,1 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.

DURING TAKEOFF, THE ENGINE LOST POWER AFTER THE PLT STARTED TO MAKE A TURN AT APRX 500 FT AGL. AN EMERGENCY LANDING WAS MADE IN A PLOWED FIELD WITH THE GEAR & FLAPS RETRACTED. AFTER TOUCHDOWN, THE ACFT SLID APRX 100 YARDS, THEN STOPPED IN A CANAL. AN INVESTIGATION REVEALED THAT THE ACFT HAD JUST RECEIVED MAINTENANCE ON THE MAGNETOS FOR COMPLIANCE OF AN AD WHICH REQUIRE REPLACEMENT OF A GEAR. AN ENGINE TEARDOWN REVEALED THAT A RETAINING SCREW FOR THE CAM IN THE MAGNETO WAS LOOSE. REPORTEDLY, THE PASSENGER WAS NOT WEARING A SHOULDER HARNESS & RECEIVED A FRACTURED STERNUM & MULTIPLE BRUISES, ESPECIALLY ABOUT THE HEAD.

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

IGNITION SYSTEM,MAGNETO..LOOSE

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

MAINTENANCE,COMPLIANCE WITH AD..IMPROPER..OTHER MAINTENANCE PERSONNEL


Contributing Factors

TERRAIN CONDITION..SOFT


Contributing Factors

TERRAIN CONDITION..DITCH


Contributing Factors

WHEELS UP LANDING..PERFORMED..PILOT IN COMMAND


Contributing Factors

LOWERING OF FLAPS..NOT PERFORMED..PILOT IN COMMAND

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