Service difficulty report · Servo Valve · Airbus A300*

Difficulty date
February 4, 2023
Submitted
February 7, 2023
Operation
Air carrier
Aircraft
N170US
Make and model
Airbus A300*
Aircraft serial
1462
Aircraft time
69,952 hours, 26,776 cycles
Part
Servo Valve
Part number
C203740002
Condition
Defective
Location
Zone 700 - Gears
Stage of operation
LD
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

AIRCRAFT WAS GROUNDED: AFTER LANDING DURING BRAKING-BRAKES PULSING. NO AUTOBRAKE USED.SPEEDS 38 DOWN TO 23 KTS. MAINTENANCE REPLACED ALL 4 NORMAL BRAKE SERVO VALVES (15GG, 16GG, 17GG & 18GG) PER AMM 32-42-48 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK. SEE AALA202302079091 (15GG), AALA202302071708 (16GG), AALA202302071419 (17GG) AND AALA202302070012 (18GG)