NTSB Identification: SEA87LA104.
The docket is stored on NTSB microfiche number 33819.
Accident occurred Friday, May 29, 1987 in PROSPECT, OR
Probable Cause Approval Date: 05/02/1988
Aircraft: CESSNA 172, registration: N4173F
Injuries: 4 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 ACFT LOST PWR DURING CRUISE FLT DUE TO LOSS OF OIL PRESSURE BECAUSE OF MULTIPLE OIL LEAKS. THE RECOMMENDED T.B.O. IS 1800 HRS AND THIS ENG HAD A TOTAL OF 2344 HRS. A TOP OVERHAUL HAD BEEN ACCOMPLISHED 140 FLT HRS PRIOR TO THE ACC. THE ACFT HAD ONLY BEEN FLOWN 25 HRS IN THE LAST 3 YRS. THE PLT HAD DEPARTED ON THIS X-COUNTRY WITHOUT FILING A FLT PLAN. DURING THE FORCED LNDG AFTER THE LOSS OF POWER THE ACFT COLLIDED WITH TREES DURING THE LNDG ROLL.

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

FLUID,OIL..LEAK

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

MAINTENANCE,OVERHAUL..NOT PERFORMED..COMPANY/OPERATOR MANAGEMENT

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

FLUID,OIL..STARVATION


Contributing Factors

OBJECT..TREE(S)

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