What was found
THE 111-6 HOSE ASSEMBLY ORIGINALLY MANUFACTURED IN 1996 BY MFG WAS OVERHAULED/REPAIRED BY UNKNOWN PERSONS ON 7-02 AS STATED IN OWNERS ENGINE LOG BOOK ENTRY AND STAMP IMPRESSIONS DATED ON ORIGINAL TAG. THE ORIGINAL HOSE ASSEMBLY WAS TAKEN APART AND A NEW HOSE ASSEMBLED INTO THE ORIGINAL FITTINGS. THE HOSE FITTING BLEW OFF THE 111-6 HOSE JUST AFTER TAKE OFF AND THE CABIN FILLED WITH SMOKE ACCORDING TO THE PILOT/OWNER. UPON INVESTIGATION, IT APPEARS THE HOSE ASSEMBLY MAY NOT HAVE BEEN ASSEMBLED PROPERLY. THE NIPPLE WAS NOT INSERTED INTO THE INSIDE DIAMETER OF THE HOSE IAW MFG.