What was found
CABIN AUTO INOP EICAS B THERE IS A FAILURE OF THE NO. 1 AND 2 AUTOMATIC PRESSURIZATION C ONTROLLERS OR THE PILOT CHANGED TO MANUAL PRESSURIZATION CONTROL . 0 UPDATE TO INDICATE FLT 0252 DELAY. CONTROLERS SHOW AC MOTOR FAILURE. REPLACED OUTFLOW ACTUATOR PER AMM 21-31-04. CHECKS OK. UPDATED WITH RORABLE PART NUMBERS ROTABLE PARTS CHANGE WAS INDICATED - TT # 1300978 SN OFF 4329 IPC REFERENCE # 21-31-03-10 ACTUATOR, CABIN OFF 75-2133-9-0001 4329 ON 75-2133-9-0001 1678