What was found
OKC - DURING 30K CHECK, FOUND APU SHROUD RIGHT AFT HAT CHANNEL FRETTING AT FS 1361-1390. REMOVED DAMAGED SECTION AND REPAIRED WITH FILLER AND DOUBLER PER SRM 51-70-5. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OKC - DURING 30K CHECK, FOUND APU SHROUD RIGHT AFT HAT CHANNEL FRETTING AT FS 1361-1390. REMOVED DAMAGED SECTION AND REPAIRED WITH FILLER AND DOUBLER PER SRM 51-70-5. (M)