NTSB Identification: LAX87LA273.
The docket is stored on NTSB microfiche number 34196.
Accident occurred Monday, July 20, 1987 in LAKE TAHOE, CA
Probable Cause Approval Date: 11/08/1988
Aircraft: GRUMMAN AA-5B, registration: N28452
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.

WHILE TAXIING TO THE RWY, THE PLT STATED THAT THE RIGHT BRAKE FAILED. THE ACFT ROLLED OFF THE TAXIWAY AND COLLIDED WITH A TRANSFORMER. INSPECTION OF THE BRAKE REVEALED THAT THE BRAKE LININGS WERE WORN AND THAT THE PISTON IN THE HYDRAULIC CYLINDER HAD TRAVELED PAST THE O-RING ALLOWING A LOSS OF PRESSURE.

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

LANDING GEAR,NORMAL BRAKE SYSTEM..FAILURE,TOTAL


Contributing Factors

OBJECT..AIRPORT FACILITY


Contributing Factors

FLUID,HYDRAULIC..LACK OF


Contributing Factors

MAINTENANCE,SERVICE OF AIRCRAFT/EQUIPMENT..INADEQUATE..PILOT IN COMMAND

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