What was found
ISSUE; CREW REPORTED AFTER TO BLEED 1 LEAK, A/I FAILURE, WING A/I FAILURE, RAN QRH, COULDN'T GET PACK 2 BACK ON, THEN RETURNED TO HOU. CORR ACTION; MX PERFORMED SYSTEMS OPS CHECK OF THE BLEED 1, WING A/I, AND A/I FOUND SYSTEMS TO BE WORKING. BUT DID DISCOVER PACK 1 BLOWN DUCT IT WAS INITIALLY PUT ON MEL AND REPLACED PACK DUCT HOSE JOINT #8. OPS CHECK GOOD.