Service difficulty report · Valve · Boeing 7378H4

Difficulty date
March 25, 2025
Submitted
March 25, 2025
Operation
Air carrier
Aircraft
N8315C
Make and model
Boeing 7378H4
Aircraft serial
38811
Aircraft time
41,427 hours, 19,598 cycles
Part
Valve
Condition
Reads High
Location
Zone 100
Stage of operation
AP
How discovered
C
Nature of condition
O
Precautionary procedure
A, O

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

What was found

ANTI SKID INOP <[01]. 05 - OK TO CONTINUE PER [MEL 32-2-01; ANTISKID SYSTEM ]. WITH SP 1 & 2 AND AUTHORIZATION NUMBER 243942. FOUND FC# PARKBRK IN HISTORY AND SP CO LI. TROUBLESHOT PER FIM 32-42 TASK 811. FOUND HIGH RESISTANCE ON PIN 8 AND 9 OF PARKING BRAKE VALVE. REMOVED AND REPLACED PARKING BRAKE VALVE IAW AMM 32-44-21. PERFORMED RESISTANCE CHECK OF ALL TRANSDUCERS FROM AACU. FOUND NO COUNTINUITY BETWEEN AACU AND L INBOARD TRANSDUCER. FOUND PIN 2 AND 3 AT D46006P SWAPPED IN WRONG CONFIGURATION. RE-CONFIGURED PER WDM 32-41-11. OPS CHECK GOOD PER AMM 32-42-00.

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