As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY CHECK, AFT WET AREA CFIII FRAME 90 HAS CORROSION AT THE RIGHT SIDE OF CENTER SPLICE PLATE ATTACHMENT FITTING UNDER CROSSBEAM (LEFT OF THE APU FUEL LINE). REMOVED AND REPLACED SPLICE PN 170-65177-003 & 170-86150-001 REF SRM 51-40-08.