What was found
APU CT5ATP EGT HAS SHIFTED ABOVE THE 593 DEGREE THRESHOLD AND REMAINS ABOVE THE 605 THRESHOLD. GROUNDED - YES. REPLACED BRANCHED APU HARNESS AND PERFORMED OPS CHECKS; CHECKS GOOD ON CARD #G1350537. PERFORMED WIRING RESISTANCE CHECKS IAW B737-800 FIM 49-70 TASK 805; CHECKS GOOD. INSPECTED APU AIR INLET DUCT AND COMPRESSOR IAW FIM 49-40, TASK 825; INSPECTION GOOD. PERFORMED MAGNETIC DRAIN PLUG INSP IAW B737-800 AMM 49-91-81; INSPECTION GOOD. PERFORMED CHECK OF APU CURRENT STATUS; NO FAULTS FOUND IAW FIM 49-70, TASKS 805 AND 807.