What was found
LEFT BLEED TRIP OFF ILLUMINATES. PERFORMED ENGINE BLEED SYSTEM HEALTH CHECK PER TASK CARD 29-3611 -1-7802.FOUND BAR OUT OF RANGE. REMOVED AND REPLACED PER AMM 36- 11-03-400-801. TESTED GOOD. RAN ENGINE 85% N1 BLEED TRIP OF LIGHT ILLUMINATED AFTER 15 SECONDS. ROTABLE PARTS CHANGE WAS INDICATED - TT 1024170 SN OFF 7627 REGULATOR, BLEED OFF 29-3611-9-0005 7627 ON 29-3611-9-0005 5786 PERFORMED ENGINE BLEED AIR SYSTEM HEALTH CHECK REF AMM 36-11-00 WITH NO FURTHER FAULTS NOTED. REMOVED AND REPLACED THE 390 AND 4 50 DEGREE TEMP SWITCHES REF AMM 36-11-05 AND 36-12-03. PERFORMED THE ENGINE BLEED CROSS OVER OPERATIONAL TEST WITH NO DEFECTS NOTED. RAN ENGINE AT POWER FOR 5 MINUTES WITH NO FURTHER TRIPS. ROTABLE PARTS CHANGE WAS INDICATED - TT 1061212 SN OFF 1930 TT 1061735 SN OFF 1951 SENSOR, BLEED A OFF 29-3611-9-9001 1930 ON 29-3611-9-9001 3882 SENSOR, PRECOOL OFF 29-3626-9-9001 1951 ON 29-3626-9-9001 4247