As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION OF AFT PRESSURE BULKHEAD BS 2360 PER SB 747-53A2275 FOUND CRACK .75 INCH LONG ORIGINATING FROM FASTENER HOLE FROM WEB TO Y-RING LAP JOINT BETWEEN STRINGER 24 AND 25R. CUT OUT CRACKED AREA. FABRICATED FILLER AND DOUBLER. OVERSIZED FASTENER HOLES AS NEEDED. INSTALLED FILLER AND DOUBLER PER STANDARD PRACTICES. (M)