What was found
REF AP-19149 NUMBER 1 AUTO PRESS CONTROL INOP. (AUTO CABIN PRESSURE CONTROL SYSTEMS, ONE INOPERATIVE ) (TRANSFER TO MDDR 142736, CAT C. DUE DATE 03MAR21, MEL NR 21-31-01A. PLACARD INSTALLED. 23 FEB21- LP 1068689 ITEM 4 - TPA - AP 19149 ACCOMPLISHED. REPLACED WIRES FROM CONN D 46988 PINS 5, 6, 8, 9, TO D704 IAW MM 21-31-21. OPS CHECKS OK PER AMM 21-31-00. DMI 142736 CLEARED. PLACARD REMOVED.)