What was found
ETOPS - DURING TOW, APU AUTO SHUTDOWN // REMOVED AND REPLACED APU OIL FILTERS FOUND NO DEBRIS IN FILTERS, PER AMM 49-91-41. OPS AND LEAK CHECK GOOD. INSP CHIP DETECTOR FOUND NO CHIPS FOUND CHIP DETECTOR CASE CHECK VALVE DAMAGED NEED TO REPLACE (SIGNATURE) 257333 DURING CHIP DET CASE REPLACEMENT FOUND CHIPS (METALLIC) METALLIC ON CHIP DETECTOR. REMOVED - CONTINUED BOTH APU FILTERS SCAVENGERS AND LUBE FILTERS. NO CHIPS OR METALLIC PARTICLES FOUND. CHIPS ON CHIPDETECTOR ARE OUT OF LIMITS. (SIGNATURE) 2518677 NEED TO REPLACE APU. REMOVED AND INSTALLED APU PER CARD 4901-9401-HAL. APU, AUXILIARY OFF P/N 43-4910-9-0010 S/N 01382 ON P/N 43-4910-9-0010 S/N 01722