As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT 2 STATUS MESSAGES CAME ON AT THE SAME TIME: LDG GEAR MONITOR AND NOSE A/G DISAGREE. REMOVED AND REPLACED PROXIMITY SWITCH ELECTRONICS UNIT REF 757-300 AMM 32-09-0 4-004-001. OPS CHECKS GOOD. REF 757-300 FIM 31-41-00/101 FIG 109 FOR ERASE NOSE A/G DISAGREE EICAS MSG. ROTABLE PARTS CHANGE WAS INDICATED - TT 1412649, S/N OFF 00029 IPC REFERENCE.