NTSB Identification: LAX87LA025.
The docket is stored on NTSB microfiche number 31964.
Accident occurred Thursday, October 23, 1986 in MADERA, CA
Aircraft: PIPER PA-28RT-201T, registration: N2853X
Injuries: 2 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.

DURING A DUAL INSTRUCTIONAL FLIGHT, THE PILOTS WERE PRACTICING A SIMULATED ENGINE OUT PROCEDURE. ENGINE POWER HAD BEEN REDUCED TO 15' OF MANIFOLD PRESSURE. WHEN AN ATTEMPT WAS MADE TO ADD POWER AT AN ALTITUDE OF ABOUT 500 FT, THE ENGINE QUIT. THE INSTRUCTOR TRIED TO RESTART THE ENGINE, BUT WAS UNSUCCESSFUL. THE INSTRUCTOR SAID THAT DURING THE ATTEMPTED RESTART, THE 'HI' PUMP POSITION WAS SELECTED. ACCORDING TO THE FLIGHT MANUAL, 'ACTUATION OF THE HI FUEL PUMP POSITION, WHEN THE ENGINE IS OPERATING NORMALLY, MAY CAUSE ENGINE ROUGHNESS AND/OR POWER LOSS.' NO PREIMPACT PART MALFUNCTION OR FAILURE WAS FOUND.

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

REASON FOR OCCURRENCE UNDETERMINED


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN

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