As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU CT5ATP EGT DATA SHOWS EGT IS TRENDING TOWARDS ESTABLISHED THRESHOLD. ENGINEERING RECOMMENDS REPLACE APU WIRE HARNESS. ACFT GROUNDED. R & R APU WIRING HARNESS REF MM 49-11-01-400-802. ACCOMPLISHED APU OPS TEST REF MM 49-11-00-710-801. OPS CHECK NORMAL. ACCOMPLISHED APU BITE REF MM 49-61-00-700-801. NO FAULTS FOUND ON CURRENT STATUS.