As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONICS BAY DOOR STRUCTURE HAS 2 INTERCOSTALS CORRODED WITH FILAFORM CORROSION. INTERCOSTALS LOCATED BETWEEN FS 364 & 349. ONE INTERCOSTAL IS BETWEEN STRINGER 26L & 27 & ONE INTERCOSTAL LOCATED BETWEEN STRINGER 27 & 26R. R & R AVIONICS BAY DOOR FWD INTERCOSTALS. IAW MWC 81517711 OP 106 FOR DETAIL OF WORK PERFORMED.