As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE LEFT ENGINE START, THE " L HYD SYS PRESS" EICAS MESSAGE APPEARED. AS WELL AS THE MASTER CAUTION LIGHT AND BEEPER. DURING ENGINE START, WE NOTICED THAT THE LEFT " VALVE" LIGHT DID NOT CYCLE WHEN THE ENGINE START SELECTOR WAS SELECTED TO "GDN". THE LIGHT ALSO DID NOT CYCLE ONCE THE START SELECTOR RETURNED TO "AUTO". NO TROUBLE FOUND. OPS CHECKED NORMAL IAW B767 AMM 80-11-00/501.