Service difficulty report · Anti-Skid Valve · Boeing 7378

Difficulty date
June 24, 2025
Submitted
June 27, 2025
Operation
Air carrier
Aircraft
N37342
Make and model
Boeing 7378
Aircraft serial
67606
Aircraft time
4,737 hours, 1,643 cycles
Part
Anti-Skid Valve
Part number
39353
Part serial
64952
Condition
Faulted
Location
Zone 100
Part time
4,724 hours, 1,639 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 INOP LIGHT ILLUMINATED ON TAKEOFF ROLL AND REMAINS IL LUMINATED PERFORMRD FIM TASK 32-42-00-501 FOUND BOX 1 FAULT NOTED. PRFORMED AMM TASK AASCU OPERATION TEST 32-42-00-720-801 & 32-42-00-720-801 AASC BITE TEST . PERFORMED MAINTENANCE MESSAGE 32-F0111 - FAULT ISOLATION REQUIRES AVIONICS ASSISTANCE FOR TROUBLE SHOOTING T/S PER FIM 32-42 TASK 827, LEFT ANTISKID ALTERNATE VALVE RESISTANCE VALUE ABOVE NORMAL RANGE LIMITS. REQUIRES REPLACEMENT. R&R L ALT ANTISKID CONTROL VALVE UP TO AND INCLUDING F.(1) REF AMM 32-42-31. LEAK CHECK IS GOOD. COMPLETED OPS CHECK REF 32-42-31 STEP G NO DEFECTS NOTED AT THIS TIME.

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