What was found
ACFT DID NOT PRESSURIZE F/A SAID THEY COULD SEE AROUND MCD OUTSIDE DOOR SEAL DID NOT INFLATE. RETURNED TO FIELD, LANDING UNEVENTFUL. OVERWEIGHT LANDING INSP OK IAW 05-50-06-210-801. AFT CARGO DOOR AND MAIN CABIN DOOR SEAL FOUND TO BE CUT. FERRIED FOR REPAIRS. FOUND CUT IN MCD SEAL AND AFT CARGO DOOR SEAL. REF. WO 92240 NR-00002 FOR WORK PERFORMED ON REMOVE AND REPLACED AFT CARGO DOOR SEAL. REMOVED MCD SEAL IAW Q400 TASK 52-11-31-000-801 INSTALLED NEW SEAL IAW Q400 TASK 52-11-31-400-801. PERFORMED OPS CHECK OF DOOR SEALS OPS CHECK GOOD NO DEFECTS NOTED. ACFT PRESSURIZED TO 3 DIF AND HELD STEADY. RETURNED TO SERVICE.