As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT GOT C SYS LOW THEN CAME BACK TO NORMAL THEN GOT ANO THER CSYS LOW EICAS MSG REQUEST TO APPLY MEL 2933F. VERIFIED CTR HYD RVSR LEVEL IS NORMAL & ASSOCIATE LOW SYS PRESS LT OPS NML MEL 2933F APPROVED, C HYD SYSTEM INDICATION INOP DDP C/W