As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN GEAR STEERING EICAS ON TAKEOFF COMPLIED WITH MEL FOR LOCKING STEERING ACT. ALL MEL TASK ACCOMPLISHED REFERENCE FIM 31-51 TASK 892 . AHM UPDATE:ACFT REPORTED CORRELATED MMSG: 31-78130 - MAIN GEAR STEERING CONTROL UNIT STEERING LOCKED SIGNALS DO NOT AGREE. REPLACED MAIN GEAR STEERING CONTROL UNIT IN REF AMM TASK 32-53-02-020-801 AND 32--53-02-420-801. OPS CHK OK ROTABLE PARTS CHANGE WAS INDICATED - TT # 1896040 SN OFF 0300 UNIT, CONTROL, OFF 27-3250-9-0001 0300 ON 27-3250-9-0001 0327