As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR PACK 2 REGULATOR FAULT. ( FAULTING FLOW CONTROL VALVE 24HB) HOT AIR SYS INOP GROUNDED - YES. TEST OF COCKPIT AND CABIN TEMP CONTROL IAW AMM 21-63-00-710-004-A FAULTS FLOW CONTROL VALVE. RELEASED PER MEL 21-52-01-07, MEL LIST UPDATED, AUTHORIZED BY MCC KEITH. REMOVED INOP PACK # 2 FLOW CONTROL VALVE AND INSTALLED NEW PACK # 2 FLOW CONTROL VALVE. OPS CK GOOD. WORK DONE IAW AMM 21-51-51-400-001-A. THIS AIRCRAFT RELEASED FROM MEL 21-52-01-07 MAINT PROCEDURES REVERSED. MDDR # 69926 REMOVED. SEAMC JACK NOTIFIED