As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROX 3 HRS INTO FLT F/A REPORTED STRONG ODOR IN AFT GALLEY. ODOR WAS STRONGEST IN VICINITY OF CAPT SIDE LAVATORY/ AISLE AIR VENTS. ODOR WAS ELECTRICAL IN NATURE AND DISSIPATED AFTER 10 MIN. FOUND CEILING LIGHT BALLAST AT 41A, B OVERHEAD INOP AND WITH STRONG ODOR. REPLACED BALLAST AT 41 A, B. CHECKS GOOD NO MORE ODOR,