NTSB Identification: DEN82FA061
14 CFR Part 91: General Aviation
Accident occurred Sunday, April 18, 1982 in PARKER, CO
Probable Cause Approval Date: 04/18/1983
Aircraft: CESSNA 150, registration: N6859A
Injuries: 1 Serious,1 Minor.

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.

AT ABOUT 150 FT AGL & BEYOND THE RWY DEPARTURE END THE ENG LOST POWER. THE ACFT IMPACTED AN EMBANKMENT DURING THE ATTEMPT TO RETURN TO THE ARPT. ENG EXAM REVEALED THAT THE #1 CYLINDER PISTON COMPRESSION RING WAS BROKEN CORRESONDING TO GROOVES ON THE CYLINDER. THE CONROD BEARING WAS DESTROYED. THE CRANKSHAFT NEXT TO THE BEARING BORE EVIDENCE OF BURNISHING & SOME BLUING OR HEAT DAMAGE. A FLT IN THIS ACFT WAS TERMINATE AFTER 1 HR ON 3/27 DUE TO LOW OIL PRESSURE & SMOKE IN THE COCKPIT. A LARGE AMOUNT OF OIL WAS FOUND AROUND THE ENG & FUSELAGE. 5 QTS OF OIL WERE ADDED. THE ACFT HAD FLOWN 0.6 HR PRIOR TO THE ACCIDENT FLT. THIS FLT WAS TERMINATED DUE TO UNUSUAL ENG NOISES & A DECREASE IN RPM. THE PLT WROTE A NOTE DESCRIBING THE ENG PROBLEM & PLACED THE NOTE ON THE LEFT SEAT OF THE COCKPIT. NEITHER PLT IN THIS ACCIDENT RECALLED SEEING ANY NOTE IN THE ACFT DURING PREFLIGHT.

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

ENGINE ASSEMBLY,RING..FAILURE,PARTIAL

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

FLUID,OIL..STARVATION

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

ENGINE ASSEMBLY,CONNECTING ROD..FAILURE,TOTAL

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

MAINTENANCE,INSPECTION..INADEQUATE..COMPANY MAINTENANCE PERSONNEL

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

SUPERVISION..INADEQUATE..COMPANY/OPERATOR MANAGEMENT

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

CONDITION(S)/STEP(S) INSUFFICIENTLY DEFINED..COMPANY/OPERATOR MANAGEMENT


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN

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