Service difficulty report · Control Module · Boeing 737924ER

Difficulty date
December 30, 2022
Submitted
December 30, 2022
Operation
Air carrier
Aircraft
N36447
Make and model
Boeing 737924ER
Aircraft serial
31650
Aircraft time
34,138 hours, 12,309 cycles
Part
Control Module
Part number
20102060103
Part serial
5638
Condition
Faulted
Location
Anti Skid
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

ANTISKID LIGHT ON DURING TAKEOFF ROLL 70 KNOTS CREW HAD SKID LIGHT ON AND OFF 3 TIMES DURING ROLL. AACU PER FIM 32-42 TASK 807 RESISTANCE IS 400 - 600 OHMS NEXT STEP IS CONSISTANTLY FAILS A/B CNTL PER 32-42 TASK 801. A/B CNTL FIM IS TO REPLACE SERVO VALVE PRESSURE SWITCH 32-42 TASK 807. WE DID NOT GET TO THE RING OUT. WHILE REMOVING PRESURE SWITCH FOUND MODUL DAMAGED. REPLACED MODULE WITH PRESURE SWITCH ATTACHED. WITH REF TO AMM 32-42-81-400-801. OPT TEST AND HYD BLEEDING STILL REQUIRED. PARTS USED: 1966082,QTY :1 ADD EMP:U150635 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1966082 SN OFF 5638 CONTROL, AUTOBR OFF 29-3243-9-0001 5638 ON 29-3243-9-0001 0425 COMPLETED BITE CHECK AND BREAK BLEEDING WIH REF TO AMM 32-42-81 AND FIM 32-42 TASK 801. ADD EMP:U150635