As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE MNTC AT SFO, MECHANIC SAW LIGHT COMING INTO RIGHT SIDE APU BATTERY COMPARTMENT FROM OUTSIDE. UPON INVESTIGATION, IT WAS DISCOVERED THAT 65B02777-601 SKIN ASSY WAS CRACKED THRU AT APPROX 3 O''CLOCK POSITION. IT APPEARS THAT THE AFT STR 11(65B02777-63) TO STA 2658 BHD FLANGE ATTACH FASTENERS WERE MISSING, BUT WERE INSTALLED AT ONE TIME. HOLES WERE WORN OVERSIZED THRU STACK-UP. *S/D* REPAIRED 65B02777-63, FRAME FLANGE AND SKIN PER SRM.