As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG ANTI ICE EICAS L ENG ANTI ICE YELLOW VALVE LIGHT WITH SWIT CH SELECTED ON UPDATE. MARKED AS SDR REPLACED LEFT ENG TAI VALVE (WITHOUT VALVE POSITION INDICATOR) REF AMM 30-21-03-404-016, UP TO STEP 3 E (15). NEEDS ENGINE RUN FOR OPS AND LEAK CHECK. ADD EMP:369162 LOCKED VALVE IN PARTIALLY OPEN POSITION PER MEL 3021N MEL 3021N REJECT FOR REF ACP OPERATIONAL TEST PER AMM 30-21-03... NO FAULTS NOTED PARTS INFORMATION UPDATE ROTABLE PARTS CHANGE WAS INDICATED - TT # 158805.