As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOW PRESSURE LIGHT ILLUMINATED POS 1 (01=1,02=2). EICAS MESSAGE DISPLAYED C HYD PRIM (1,2). FRM CODE 29-11-07 --. TROUBLE SHOT PER MM AND FOUND TIME DELAY MODULE M303 AT FAULT. REPLACED M303 IAW WD 29-11-31. TESTED PER MM 201 AND 501 AND TESTED NORMALLY.