What was found
SHIP 669 -PRESS- AT FL320 HAD A LOUD SQUEAL AROUND SEAT ROWS 23-25, WHILE DESCENDING FROM FL320 TO FL240 THE CABIN ALTITUDE WARNING SOUNDED WITH CABIN ALTITUDE AT 10K FEET. CABIN AUTO PRESS 1 & 2 FAIL MESSAGES, SWITCHED TO MANUAL AND MADE AN EMERGENCY DESCENT DOWN TO FL100, NO CABIN MASK DEPLOYED. CORRECTIVE ACTION: FOUND LEFT PACK BOOT CLAMP OFF, REPLACED BOTH LT AND RT BOOTS AND CLAMPS. CHECK VALVES BAD, REPLACED BOTH A/C CHECK VALVES. FOUND LT AC DUCT MISADJUSTED WITH CHECK VALVE, ADJUSTED THE SAME. LT PACK LWR COUPLING ON PRIMARY H/E LEAKING AND TWO HOSE COUPLING LEAKING, R/R HOSE COUPLINGS. FAILED HULL DECAY CHECK. FOUND AFT CARGO DOOR SEAL PULLED FROM RETAINER AND FWD CARGO DOOR SEAL WITH A HOLE REPAIRED BOTH. ACCOMPLISHED SINGLE PACK CONFIDENCE AND HULL DECAY CHECK BOTH PASSED. PERFORMED VL FLT, CHECKS GOOD. (5715563)