What was found
#1 ENGINE PYLON HAS A CRACK IN THE AFT BULKHEAD AT APPROXIMATE NACELLE STATION 314.0. CRACK IS 2.75' LONG; PROPAGATES INTO A RADIUS; AND EXITS OUT THE BOTTOM EDGE OF THE BULKHEAD FRAME. / [01] CRACK CONFIRMED WITH HFEC INSPECTION USING NDT MANUAL PART 6; 51-00-00; PROCEDURE 23.;[02] REMOVED #1 ENGINE AFT FAIRING REF AMM 54-52-04<BR>REMOVED #1 ENGINE PROMARY NOZZLE REF AMM 78-11-01<BR>TO FOM;[03] REMOVED AFT HEAT SHIELD REF AMM 54-52-08 TO FOM.<BR>REMOVED CRACKED AFT FAIRING TRAILING EDGE ASSY REF SRM 51-40-02.;[04] INSTALLED AFT HEAT SHIELD REF AMM 54-52-08<BR>INSTALLED AFT FAIRING TRAILING EDGE ASSY REF SRM 51-40-02.;[05] INSTALLED #1 ENGINE AFT FAIRING REF AMM 54-52-04.<BR>INSTALLED #1 ENGINE PROMARY NOZZLE REF AMM 78-11-01.