NTSB Identification: MKC89LA152.
The docket is stored on NTSB microfiche number 39418.
Accident occurred Tuesday, July 04, 1989 in EXCELSOR SPRGS, MO
Probable Cause Approval Date: 10/24/1990
Aircraft: PIPER PA-32-300, registration: N4175R
Injuries: 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.

THE PLT HAD DEPARTED THE DUPAGE ARPT, CHICAGO, IL ENROUTE TO KANSAS CITY DTWN ARPT. DURING DESCENT FROM CRZ ALTITUDE THE PLT SAID OIL COVERED THE WINDSCREEN AND ENGINE POWER WAS LOST. THE PILOT ATTEMPTED A NIGHT FORCED LANDING AT AN AIRPORT LOCATED ABOUT 45 MILES NORTHEAST OF THE DESTINATION. DIRECTIONAL CONTROL OF THE ACFT WAS LOST DURING THE LANDING ROLL. THE ACFT CAREENED OFF THE HARD SURFACED RWY INTO ROUGH AND UNEVEN TERRAIN WHICH TORE A WING FROM ITS ATTACH POINT. POST ACCIDENT EXAM OF THE ACFT AND ITS RECORDS SHOWED THAT IT HAD NOT BEEN PROPERLY INSPECTED AND WAS NOT AIRWORTHY FOR THIS FLIGHT. THE ENGINE FAILED IN WHAT APPEARED TO BE A FAILURE INDICATIVE OF A CONNECTING ROD, ROD END OR ROD BOLT FAILURE WITH A RESULTANT HOLE IN THE ENGINE CASE.

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

THE CATASTROPHIC FAILURE OF THE AIRCRAFT ENGINE AND THE PILOTS FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRCRAFT DURING THE LANDING ROLL. IMPROPER MAINTENANCE, THE DARK NIGHT CONDITIONS, AND RESTRICTED VISIBILITY DUE TO OIL ON THE WINDSCREEN WERE CONTRIBUTING FACTORS.

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