NTSB Identification: FTW82DA143
14 CFR Part 91: General Aviation
Accident occurred Friday, April 23, 1982 in GARLAND, TX
Probable Cause Approval Date: 04/23/1983
Aircraft: BEECH A60, registration: N7RA
Injuries: 1 Uninjured.

THE PLANE HAD BEEN INVOLVED IN A BANKRUPCY SETTLEMENT AND HAD NOT BEEN FLOWN FOR ABOUT 3 1/2 MTHS. THE PILOT HAD BEEN SENT TO FERRY THE PLANE. DURING A RUN-UP BEFORE TAKEOFF, THE PROPELLERS MOVED TOWARD A FEATHER POSITION WITHOUT PILOT INPUT. THE PILOT HAD A MECHANIC SERVICE THE PROPS. A SUBSEQUENT RUN-UP WAS NORMAL, SO THE PILOT TOOK OFF. ABOUT TWO MINUTES AFTER LEVELING AT 1800 FT, THE LEFT PROP STARTED FEATHERING AGAIN WITHOUT PILOT INPUT AND THE LEFT ENGINE LOST POWER. A SHORT TIME LATER, THE RIGHT ENGINE BEGAN LOSING POWER. AN EMERGENCY LANDING WAS MADE ON A CLOSED AIRPORT; HOWEVER, THE GEAR STRUCK ROCKS AND DEBRIS THAT WERE NOT VISIBLE IN AN AREA OF GRASS. AN INVESTIGAITON REVEALED THE ENGINE OIL HAD NOT BEEN CHANGED SINCE 7/20/81. THE PROP GOVERNOR SCREENS WERE FOUND WITH ABOUT 70 TO 80% BLOCKAGE WITH A CARBON BUILD-UP. AN OIL ANALYSIS REVEALED A HIGH ALUMINUM CONTENT. THE LAB REPORT STATEDTHAT THIS MAY BE FROM BREAK-IN, RECENT MAINTENANCE, ABNORMAL WEAR, OR OVER EXTENDED OIL DRAIN. LAST ANNUAL DATED 4/2/81.

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

MAINTENANCE,SERVICE OF AIRCRAFT/EQUIPMENT..INADEQUATE..COMPANY/OPERATOR MANAGEMENT

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

AIRCRAFT PREFLIGHT..INADEQUATE..PILOT IN COMMAND

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

FLUID,OIL..CONTAMINATION

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

PROPELLER SYSTEM/ACCESSORIES,HYDRAULIC PITCH CTL..BLOCKED(PARTIAL)


Contributing Factors

TERRAIN CONDITION..HIDDEN OBSTRUCTION(S)

Index for Apr1982 | Index of months