A B747F WAS DISPATCHED IN NON COMPLIANCE WITH THE AFT BULKHEAD STRINGER TIE-END FITTINGS REPLACED BUT WITH NO REQUIRED FAA MAJOR REPAIR INSPECTION.

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ACFT X HAD HVY CHK MAINT COMPLETED ON APPROX SEP/THU/02. THE AFT PRESSURE BULKHEAD REQUIRED AN ENGINEERING MODIFICATION WHICH INCLUDED PROCS TO REMOVE AND REINSTALL CHORD FASTENERS/BOLTS. ALL DOCUMENTATION WAS CONTAINED IN PRE-TYPED FORMAT. ADDITIONAL MAINT RESULTED FROM CORROSION PRESENT ON THE PRESSURE BULKHEAD STRINGER TIE-END FITTINGS. THIS MAINT WAS DOCUMENTED ON NON ROUTINE CARD FORMAT WHICH THERE WAS A SEPARATE PROC. ENGINEERING AUTH ENSUED FOR THE ADDITIONAL CORROSION DISCOVERED. STRINGER TIE-END FITTINGS WERE REPLACED BECAUSE OF CORROSION AND PROPERLY DOCUMENTED AS INSTALLED ON THE NON ROUTINE DOCUMENTS. AN INSPECTION WAS REQUIRED FOR THE REPLACEMENT OF THE FITTINGS. BECAUSE THE SUB-FLOOR AREA OF THE AFT PRESSURE BULKHEAD WAS CLOSED BEFORE AN INSPECTION OF THE WORK PERFORMED WAS COMPLETED; THE INSPECTION WAS NEVER COMPLETED. THIS REQUIREMENT WAS BROUGHT TO THE ATTN OF HIGHER AUTH FOR ACTION. HOWEVER; THE AREA WAS NOT REOPENED FOR THE INSPECTION REQUIRED BY COMPANY POLICY. HIGHER AUTH PERSONNEL ASSUMED THAT ALL REQUIRED INSPECTIONS WERE COMPLETED ON THE ORIGINAL ENGINEERING DOCUMENT BUT LATER DISCOVERED THAT THE INSPECTION REQUIREMENT FOR THE NON ROUTINE DOCUMENTS WAS NEVER PERFORMED.