Service difficulty report · O-Ring · Cessna 402C

Difficulty date
November 8, 2019
Submitted
November 12, 2019
Operation
Air carrier
Aircraft
N2748Y
Make and model
Cessna 402C
Aircraft serial
C4020248
Aircraft time
34,012 hours, 36,827 cycles
Part
O-Ring
Part number
28775112
Condition
Leaking
Location
Master Cylinder
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
D

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

What was found

PILOT REPORTED RIGHT BRAKE FAILURE. MAINTENANCE INSPECTED AND FOUND AN O-RING IN THE RIGHT MASTER CYLINDER BLEEDING BY. RE-SEALED THE RIGHT MASTER CYLINDER WITH NO FURTHER DEFECTS NOTED.

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