NTSB Identification: CHI86LA032.
The docket is stored on NTSB microfiche number 29496.
Accident occurred Thursday, November 21, 1985 in PEKIN, IL
Aircraft: ROCKWELL 112, registration: N10285
Injuries: 1 Minor.

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

FOLLOWING A TOP OVERHAUL OF THE ENGINE A TEST FLIGHT WAS PLANNED TO BREAK IN THE CYLINDERS AND RINGS. PRIOR TO THIS FLIGHT THE ENGINE WAS OPERATED FOR A SHORT PERIOD ON THE GROUND THEN SHUT DOWN AND CHECKED FOR OIL LEAKS WITH NEGATIVE RESULTS. THE TAKEOFF AND INITIAL CLIMB WERE UNEVENTFUL. SHORTLY AFTER LEVELOFF THE PROP SURGED MOMENTARILY AND ENGINE PERFORMANCE DETERIORATED RAPIDLY. THE PILOT SHUT THE ENGINE DOWN AND ENTERED THE VFR TRAFFIC PATTERN ON DOWNWIND. HE LOWERED THE GEAR AND LANDED SHORT OF THE RUNWAY. AN EXAMINATION OF THE ENGINE FOLLOWING THE ACCIDENT REVEALED THAT A 'B' NUT ON THE PORP GOVERNOR LINE HAD BACKED OFF, ALLOWING MOST OF THE OIL TO DRAIN OUT, ACCORDING TO THE PILOT.

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

PROPER GLIDEPATH..MISJUDGED..PILOT IN COMMAND

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

PROPER TOUCHDOWN POINT..MISJUDGED..PILOT IN COMMAND

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

MAINTENANCE,INSTALLATION..IMPROPER..COMPANY MAINTENANCE PERSONNEL


Contributing Factors

LUBRICATING SYSTEM,OIL LINE..DISCONNECTED

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