As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RANDOMLY THROUGHOUT FLIGHT LOST COMBINATIONS OF BOTH PACK AND BLEED SYSTEMS. AIR CONDITIONING PACK. R&R UPPER SLEEVE AT DUAL TEMPERATURE CONTROL VALVE ON PACK 2 IRT AMM 21-60-01. OPS AND LEAK CHECK GOOD. AIRCRAFT OK FOR SERVICE. CLEAR MEL 21-15-1.