NTSB Identification: CHI85LA286.
The docket is stored on NTSB microfiche number 28979.
Accident occurred Sunday, July 14, 1985 in APPLETON, WI
Aircraft: PIPER PA-32R-300, registration: N4137F
Injuries: 5 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.

AS THE PLT APPLIED BRAKES DURING A FULL STOP LANDING, THE RIGHT BRAKE FAILED. THE PLT THEN MANEUVERED THE ACFT OFF THE PAVED LANDING SURFACE IN AN ATTEMPT TO GET IT TO ROLL TO A STOP. THE RIGHT LANDING GEAR STRUT COLLAPSED. THE ACFT THEN SLID INTO A FENCE AND STOPPED. AN EXAMINATION OF THE RIGHT BRAKE ASS'Y REVEALED EXTREMELY THIN INNER AND OUTER BRAKE PADS. SOME PORTIONS OF THE PADS WERE WORN COMPLETELY AWAY. FURTHER EXAMINATION REVEALED THAT THE O RING SEAL AROUND EACH BRAKE CYLINDER WAS PROTRUDING FROM THE CYLINDER ASS'Y. THE RIGHT TIRE EXHIBITED HEAVY HYDRAULIC FLUID STAINING. A LOGBOOK ENTRY OF 1/25/85 STATED THAT THE BRAKE LININGS AND SEALS FOR BOTH BRAKES WERE REPLACED DURING THAT INSPECTION.

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

MAINTENANCE,INSPECTION..INADEQUATE..OTHER MAINTENANCE PERSONNEL

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

AIRCRAFT PREFLIGHT..INADEQUATE..PILOT IN COMMAND


Contributing Factors

LANDING GEAR,NORMAL BRAKE SYSTEM..FAILURE,PARTIAL


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

LANDING GEAR,NORMAL BRAKE SYSTEM..WORN


Contributing Factors

LANDING GEAR,NORMAL BRAKE SYSTEM..PRESSURE TOO LOW

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