As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PUSHBACK NOSE A/G SYS EICAS ADVISORY AND NOSE A/G DISAGREE STATUS MESSAGE APPEARED. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE PERFORMED BITE OF PSEU NO DEFECTS PER B767 AMM 32-09-11 NO STORED FAULTS OR ACTIVE FAULTS. AIRCRAFT RETURNED TO SERVICE.