What was found
DURING FLIGHT PACK 1 VLV CLOSED APPEARED ON EICAS AND WOULDNT RESET. PACK 2 CURRENTLY ON MEL, A/C COULD NOT HOLD PRESSURIZATION FACT 05MAR23 20:27 CLT FOUND MULTIPLE SLEEVES BLOWN ON PACK 1 A/C SYSTEM. R&R SLEEVES AS REQUIRED TO DUAL TEMP CTRL VALVE, DUCT AND DUEL HEAT EXCHANGER. OPS CHECK GOOD. A/C OK FOR SERVICE.