NTSB Identification: ATL87LA125.
The docket is stored on NTSB microfiche number 33716.
Accident occurred Monday, April 20, 1987 in WAVERLY, TN
Probable Cause Approval Date: 07/05/1988
Aircraft: CESSNA 150J, registration: N60696
Injuries: 1 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 PLT REPORTED THAT HE WAS TAXIING TO THE RWY WHEN THE 'RUDDER FAILED TO TURN THE (AIRPLANE) ONTO THE RWY AND THE LEFT BRAKE FAILED.' THE AIRPLANE SUBSEQUENTLY RAN OFF THE END OF THE TAXIWAY, TRAVELED APPROX. 50 FT., WENT OVER A STEEP DROPOFF AND COLLIDED WITH THE TERRAIN BELOW. EXAMINATION OF THE ACFT BY A MECHANIC REVEALED THAT THE LEFT BRAKE SYSTEM FLUID SUPPLY HAD LEAKED OUT OF THE LEFT BRAKE ASSY, AROUND THE CALIPER PISTON 0-RING. NO PROBLEMS WERE FOUND TO EXIST IN THE NOSEWHEEL STEERING SYSTEM.

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

BRAKES(NORMAL)..IMPROPER USE OF..PILOT IN COMMAND

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

AIRSPEED..EXCESSIVE..PILOT IN COMMAND

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

LANDING GEAR,NORMAL BRAKE SYSTEM..FAILURE,PARTIAL


Contributing Factors

LANDING GEAR,NORMAL BRAKE SYSTEM..LEAK

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