What was found
DISPATCHED WITH ONE PACK, MIX VLV INOP. ACFT WOULD NOT HOLD THE CABIN WITH CARGO HEAT OUTFLOW CLOSED AND OUTFLOW VLV FULL CLOSED. REPLACED EQUIP COOLING VLV IN E/E COMP, PRESS ACFT TO 3 PSI AND OPERATION CKS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DISPATCHED WITH ONE PACK, MIX VLV INOP. ACFT WOULD NOT HOLD THE CABIN WITH CARGO HEAT OUTFLOW CLOSED AND OUTFLOW VLV FULL CLOSED. REPLACED EQUIP COOLING VLV IN E/E COMP, PRESS ACFT TO 3 PSI AND OPERATION CKS OK.