Service difficulty report · O-Ring · Beech C99

Difficulty date
September 10, 2013
Submitted
September 15, 2013
Operation
Air carrier
Aircraft
N6199D
Make and model
Beech C99
Aircraft serial
U169
Aircraft time
30,853 hours, 48,998 cycles
Part
O-Ring
Part number
MS28775013
Condition
Leaking
Location
Left Brake
Part time
649 hours, 832 cycles
Component
Brake Assembly · Bfgoodrich
Component part number
11580013
Stage of operation
TX
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

THE PILOT REPORTED THAT WHILE TAXING INTO THE CARGO LOADING RAMP AREA AT KPUC THE LT BRAKE HAD NO BRAKE PRESSURE AND WOULD NOT WORK. THE PILOT STOPPED THE ACFT ON THE RAMP SHUT THE ENGINES DOWN AND INSPECTED THE LT BRAKES. THE LT BRAKE WAS LEAKING HYD FLUID. MX INSPECTED THE LT BRAKE ASSY AND FOUND THE BRAKE MANIFOLD TEE FITTING ON THE NR 2 BRAKE LEAKING FLUID. R & R THE O-RINGS, PN MS28775-013; BLEED AIR FROM THE BRAKE SYSTEM, LT BRAKE FUNCTIONAL CHECK NORMAL.

More about the Beech C-99