As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R ENG STARTER EICAS MSG ON GROUND DURING START. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE DEFERRED RT. ENG. START VALVE IAW MEL 80-00-2-1. MAINTENANCE PROCEDURES COMPLIED WITH. PLACARD INSTALLED. AIRCRAFT RETURNED TO SERVICE.