As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/O FMC BRT ADJUST KNOB NOW WORKING PROPERLY WHEN YOU TOUCH IT CDU SCREEN GOES TO FULL BRIGHT OR FULL DIM. COULD NOT DUPLICATE WRITE UP. ADJUSTED UP AND DOWN F/O'S BRIGHT KNOB ON FMC CDU. SYS IS WORKING NML. NO HISTORY. PERFORMED LAMP TEST REF 34-61-01. SYS CHECKED NORMAL.