NTSB Identification: FTW86FPJ09.
The docket is stored on NTSB microfiche number 30970.
Accident occurred Friday, June 20, 1986 in ARDMORE, OK
Aircraft: QUICK SILVER MXII, registration: N4410W
Injuries: 2 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE ACFT LANDED SHORT OF THE RWY AFTER LOSING ENG PWR DURING THE APCH. POST ACC INSPECTION SHOWED THAT THE BEARING ON THE PWR SHAFT FAILED. THIS ALLOWED THE BELT TENSION TO BECOME SLACK WHICH REDUCED THE PROP RPM. NO OTHER DISCREPANCIES WERE NOTED.

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

ENGINE ASSEMBLY,BEARING..FAILURE,TOTAL

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