NTSB Identification: DEN84LA033.
The docket is stored on NTSB microfiche number 22329.
Nonscheduled 14 CFR
Accident occurred Thursday, November 17, 1983 in YANKTON, SD
Aircraft: CESSNA 172, registration: N52419
Injuries: 1 Serious,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 PLT STATED THE ENG WOULDN'T START & HE SUSPECTED A DEAD SPOT ON THE STARTER. HE THEN ASKED A MECHANIC TO ROTATE THE PROP. ALL SWITCHES WERE OFF EXCEPT THE BATTERY SWITCH. WHEN THE MECHANIC MOVED THE PROP THE ENG STARTED & THE PROP STRUCK THE MECHANIC. EXAMINATION OF THE ACFT'S IGNITION WIRING REVEALED THAT THE RIGHT MAGNETO 'P' LEAD WAS INCORRECTLY CONNECTED TO THE GROUND TERMINAL CAUSING THE RIGHT MAGNETO TO BE OPEN, OR HOT.

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

IGNITION SYSTEM,MAGNETO..OPEN

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

MAINTENANCE,INSTALLATION..IMPROPER..OTHER MAINTENANCE PERSONNEL

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