Service difficulty report · Brake Caliper · Cirrus SR22

Difficulty date
April 10, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Cirrus SR22
Aircraft time
812 hours
Engine
Cont IO550N
Part
Brake Caliper
Part number
3052
Condition
Damaged
Location
Mlg
Part time
793 hours
Stage of operation
IN
How discovered
O
Nature of condition
K
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) BOTH THE RIGHT AND LEFT HAND BRAKE CALIPERS HAD A PIN HOLE FLUID LEAK. BOTH CALIPERS WERE LEAKING ON THE OUTSIDE SURFACE IN THE CORNER OF WHERE THE RAISED CIRCLE ACROSS FROM THE BRAKE PISTON BORE IS. BOTH WERE ON THE SIDE CLOSEST TO THE BLEEDER SCREW. THE CALIPERS WERE REMOVED AND LIGHTLY PRESSURIZED FOR A FEW HOURS ON THE BENCH AND WITH A 10X MAGNIFYING GLASS YOU COULD SEE A WET SPOT OF HYDRAULIC FLUID FORMING.

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