As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT DUCT PRESSURE MINIMAL AT IDLE. RIGHT PACK OFF DUE TO LOW FLOW (CHRONIC) FOUND HS PILOT OVERPRESSURE INDICATOR EXTENDED ON NR 2 ENGINE. T-S REF FIM 36-10-00 PG 155, FIG 111, BLOCKS 1, 21, 42. ACP'D PNEUMATIC HEALTH CHECK ON HPSOV AND HS PILOT, BOTH FAILED. REPLACED HS PILOT AND HPSOV PER AMM. CHECKED NEW COMPONENTS WITH PNEUMATIC HEALTH CHECK KIT. ALL GOOD. ALSO RAN ENGINE'S AND BLEEDS WHERE GOOD.