As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUE TO REMOVAL OF SOME FASTENERS DURING REMOVAL OF CORROSION ON OUTER SKIN AT C80, P5-6 RHS IT WAS IMPOSSIBLE TO REINSTALL SOME FASTENERS WITHOUT DAMAGING THE AFT PRESSURE BULKHEAD. REPAIR PERFORMED BY INSTALLATION OF FOUR ALTERNATE BOLTS NSA 6603-5, APPROVED BY EA 6-5319-103240 AND RAS/DAHAM/4020934/2006 ISSUE "A".