As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ROW 16ABC LT BALLAST NOISY. DISCONNECTED THE BALLAST ASSEMBLY AT ROW 16ABC OVERHEAD. PLACED THE ABOVE ITEM ON PLACARD 332 1A. NEED MORE TIME TO TROUBLE SHOOT. OK TO CONTINUE FOR SERVICE IAW THE MEL. REPLACED BALLAST ASSEMBLY, OPERATIONS CHECKED OKAY.