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SDR CALA2024020500338

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Service difficulty report · Controller · Boeing 737924ER

FAA SDR system

Difficulty date
February 5, 2024
Submitted
February 5, 2024
Operation
Air carrier
Aircraft
N38446
Make and model
Boeing 737924ER
Aircraft serial
31661
Aircraft time
37,395 hours, 13,569 cycles
System (JASC)
2131 · Cabin Pressure Controller
Part
Controller
Part number
2193301AD
Part serial
1196085
Condition
Faulty
Location
Cabin Pressure
Part time
37,392 hours, 13,566 cycles
Stage of operation
CL
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

AUTO FAIL LIGHT BITE CHECK OF CPC 1 FOUND FAULT 005 CAB RATE HI. CLEARED AND BITE BOX, NO ACTIVE FAULTS PRESENT. PLEASE CHANGE CABIN PRESSURE CONTROLLER, CONTROLLER, CAB OFF 58-2131-9-0002 6085 ON 58-2131-9-0002 0708 CONTROLLER, CAB OFF 58-2131-9-0002 6085 ON 0000 PER TOMC REPLACED CPC 1, REF MM21-31-01-400-801, TEST PASSED, GROUND CHECK NORMAL. PARTS USED: 58-2131-9-0002,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1523204 SN OFF 6085.