Service difficulty report · Master Cylinder · Airbus A300B4622R

Difficulty date
September 9, 2015
Submitted
September 10, 2015
Operation
Air carrier
Aircraft
N728FD
Make and model
Airbus A300B4622R
Aircraft serial
581
Aircraft time
477 hours, 24,729 cycles
Part
Master Cylinder
Part number
C245920001
Part serial
AQ0043
Condition
Leaking
Location
Brake System
Part time
12,052 hours, 6,609 cycles
Stage of operation
LD
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

DURING LANDING, LT BRAKES GRABBED HARD & CAUSED A CONTROL ISSUE. TEMPS CLIMBED TO ABOVE 400 DEGREES ON LT & RT REMAINED APPROX 60 DEGREES, NO NOTICEABLE STEERING ISSUES DURING TAXI. LT BRAKE HAD MORE TRAVEL BEFORE GRABBING THAN RT. NOTED LT GEAR BRAKE TEMPS INTO THE LOW 200 DEGREE RANGE & RT GEAR BRAKE TEMPS IN 60 - 80 DEGREE TEMP RANGE. LT PEDAL DEPRESSES FURTHER THAN THE RT ON BOTH SIDES. WHEN DEPRESSING THE LT BRAKE PEDAL, RESISTANCE FEELS LIGHTER THAN ON RT WHEN DEPRESSING BOTH PEDALS AT SAME TIME. NO NOTICEABLE HYD PRESSURE ISSUES NOTED. R & R BRAKE CONTROL HYD RESERVOIR IAW MM 32-43-11-04. R & R LT MASTER CYLINDER IAW AMM 32-43-12-04.

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