What was found
THIS LIFE RAFT WAS REMOVED FROM THE ACFT DURING A SCHEDULED 4A+, INSP FOR A NORMAL RECERTIFICATION OF THE LIFE RAFT. THE CONTAINER WAS NOTED AS BEING " BULGED" COMPARED TO THE OTHER LIFE RAFT ON BOARD THE ACFT. BOTH RAFTS WERE SENT FOR INSPECTION AND RECERTIFICATION. A TEARDOWN REPORT HAS BEEN REQUESTED FOR THIS LIFE RAFT. TECH FROM THE SUBMITTING REPAIR STATION STATE THEY HAVE SEEN THIS CONDIRION ON ANOTHER OCCASION BUT CANNOT FIND A CAUSE FOR THE ANOMALY. DISCUSSION WITH RAFT MFG SUGGESTS THE VACUUM SEAL MAY HAVE BROKEN.