AIRPLANE
OPERATIONS
MANUAL
GROUND SERVICING
DECEMBER 20, 2002
1-12-40
Page
5
Code
01
BRAKE WEAR INDICATOR
Checking the brake wear indicators is required during walk-arounds, as
prescribed in the approved Airplane Flight Manual, according to the
following procedure:
− Operate the emergency/parking brake handle and visually verify all
pistons (2) of the brake assembly for operation.
Brake wear indicator positions must be inspected with brake
pressurized (brake applied).
− Inspect the brake wear indicators for visible cracks.
− Inspect the brake wear indicators length. The length of the brake
wear indicator for a new brake is 22.86 mm (0.90 in). When the
indicator rod is flat with the hexagonal insert, the brakes are full
worn out and should be replaced.
− If one or more of the brake wear indicators does not come out of
the piston housing, the brake assembly must be replaced.
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