What was found
PDX - AFTER PARKING, STARTED APU. IT MADE A GROWLING NOISE DURING START. GEN WOULD NOT COME ON. SHUT APU DOWN. INSPECTED APU AND FOUND STARTER/GENERATOR HANGING DUE TO START/GEN CLAMP FAILURE. FOUND APU B+ PWR FEED CABLE TERMINAL END BROKEN. FAB AND INSTALLED OF NEW B+ PWR FEED CABLE. REMOVED AND REPLACED APU START/GEN PER 24-33-01-000-801, AND 24-33-01-400-801. INSTALLED SERVICABLE APU START/GEN CLAMP. C/W OPERATIONAL TEST OF THE APU 28V DC GENERATION SYSTEM 24-33-00-710-801. CHECKS GOOD. NO DEFECTS NOTED. RETURNED TO SERVICE.