As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE WHEEL STEERING INOP ON TAXI OUT AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC . TROUBLE SHOT AND REPLACING NLG STEERING MODULE. DURING T/S OF STEERING VALVE FOUND BYPASS HANDLE BINDING. (TOWING LEVER) PEN ROF FIM 32-51 FAULT TREE 80G. REMOVED NOSE GEAR STEERING METERING VALVE MODULE. PER REF B767 AMM 32-51-04. SEE LP 38762-73/3 POR SERVICEABLE PART INSTALLATION. REF LP 38762-73/1 AC RETURNED TO SERVICE .