Service difficulty report · Anti-Skid Valve · Boeing 7378

Difficulty date
August 22, 2025
Submitted
August 26, 2025
Operation
Air carrier
Aircraft
N8858K
Make and model
Boeing 7378
Aircraft serial
42591
Aircraft time
8,300 hours, 4,509 cycles
Part
Anti-Skid Valve
Condition
Faulted
Location
Zone 700
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

ANTI SKID LIGHT CAME ON DURING TAKEOFF EXTINGUISHED AFTER RETURNING TO LAND.<[01] COMPLIED WITH IFIM TASK 32-42-00-810-828 ANTISKID/AUTOBRAKE CONTROL UNIT BITE PROCEDURE. NO FAULTS FOUND. PERFORMED RESISTANCE CHECKS OF LT AND RT ALTERNATE ANTI-SKID VALVES AND LT AND RT ANTI-SKID VALVES PER IFIM TASK 32-42-00-810-828 STEP E(3). ALL WITHIN TOLERANCE. RESECURED ALL CONNECTORS. PERFORMED SUBTASK 32-42-00-020-003, PERFORMED CHECK OF THE MECHANICAL CONDITION OF TRANSDUCER & DRIVE COUPLING & ALL 4 WHEELS. NO DEFECTS FOUND. REMOVED AND REPLACED RT AND LT ALTERNATE ANTI SKID VALVE. OPS CHECK & LEAK CHECK GOOD NO DEFECTS NOTED AT THIS TIME REF AMM 32-42-31.

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