NTSB Identification: CHI84LA387.
The docket is stored on NTSB microfiche number 26230.
Accident occurred Saturday, September 08, 1984 in LANSING, IL
Aircraft: MOONEY M20E, registration: N10SF
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 PLT HAD JUST DEMONSTRATED THE ACFT FOR SALE AND FILED AN IFR FLT PLAN. RUN UP AND PRE-TAKEOFF CHECKS WERE RUSHED TO BEAT VOID CLEARANCE TIME. JUST BEFORE LIFTOFF, PLT NOTED SLUGGISH ACCELERATION BUT BELIEVED INSUFFICIENT RUNWAY REMAINED TO SUCCESSFULLY ABORT TAKEOFF. ON INITIAL CLIMB, ENG BEGAN TO VIBRATE AND POWER OUTPUT WAS MARGINAL FOR CONTINUED FLT. PLT WAS ABLE TO MANEUVER DOWNWIND FOR LOW, CLOSE-IN APPROACH. AFTER ATTAINING RUNWAY ALIGNMENT, PLT REALIZED HE HAD EXCESS ALTITUDE AND AIRSPEED BUT ELECTED TO CONTINUE APPROACH. ACFT TOUCHED DOWN LONG ON WET RUNWAY AND RAN OFF END, COLLIDING WITH A PERIMETER ROAD GUARD RAIL. POST-MISHAP INVESTIGATION OF ENG REVEALED NO DISCREPANCIES EXCEPT WITH LEFT MAGNETO ONLY SELECTED, ENG RAN ROUGH. LEFT MAGNETO, HARNESS AND SPARK PLUGS TESTED TO SPECIFICATIONS.

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

DISTANCE..MISJUDGED..PILOT IN COMMAND

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

IGNITION SYSTEM,MAGNETO..UNDETERMINED

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

AIRSPEED..EXCESSIVE..PILOT IN COMMAND


Contributing Factors

AIRCRAFT PREFLIGHT..IMPROPER..PILOT IN COMMAND



Contributing Factors

SELF-INDUCED PRESSURE..PILOT IN COMMAND


Contributing Factors

ANXIETY/APPREHENSION..PILOT IN COMMAND


Contributing Factors

ABORTED TAKEOFF..NOT POSSIBLE..PILOT IN COMMAND


Contributing Factors

AIRPORT FACILITIES,RUNWAY/LANDING AREA CONDITION..WET

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