Service difficulty report · Anti-Skid Valve · Boeing 777222

Difficulty date
September 19, 2026
Submitted
September 23, 2026
Operation
Air carrier
Aircraft
N210UA
Make and model
Boeing 777222
Aircraft serial
30216
Aircraft time
87,099 hours, 18,680 cycles
Engine
Pwa PW4077
Part
Anti-Skid Valve
Part number
397771
Part serial
4154
Condition
Faulted
Location
Zone 700
Part time
1,487,066 hours, 1,418,673 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ANTI-SKID NORM VLV R EICAS STATUS ONE ANTISKID NORMAL VALVE FAULT ON THE RIGHT MAIN LANDING GEAR.DB BRAKE SYSTEM CONTROL UNIT (PRIMARY CHAN) DB BRAKE SYSTEM CONTROL UNIT (SECONDARY CHANNEL) REMOVED AND REPLACED NR 11 NORMAL ANTI-SKID VALVE MODULE IAW AMM 32-42-03. LEAK AND OPS CHECKED NORMAL ON GROUND. MESSAGE NO LONGER PRESENT.