As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPT FMC OFST LIGHT WOULD NOT DIM WITH LIGHT SWITCH IN DIM POSTION. EVENTUALLY ALTERNATED BETWEEN BRIGHT AND DIM FO OFST LIGHT WORKED NORMALLY. TESTED CAPT FMC CDU FIXED OUTPUT DISCRET PAGE WITH THE LIGHTS SWITCH IN THE BRIGHT AND DIM MODES UNABLE TO DUPLICATE. ALL FMC LIGHTS WORKED NORMALLY IN BOTH BRIGHT AND DIM ON THE GROUND SYSTEM OK FOR CONT SERVICE.