What was found
CLT - FLT 81 - SHORTLY AFTER LEVELING OFF AT FL330, AIRCRAFT EXPERIENCED A RAPID DECOMPRESSION. CREW DECLARED AND EMERGENCY, DESCENDED TO 10,000 FT AND RETURNED TO FIELD TO CLT. PASSENGER OXYGEN MASKS DEPLOYED AND OXYGEN GENERATORS ACTIVATED. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE FORWARD CARGO DOOR SEAL HAD BLOWN AND WAS TORN. REPLACED SAME PER MM. REPLACED OXYGEN AND MASKS. PRESSURIZED AIRCRAFT. CHECKS GOOD PER MM. (M)