As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FUMES EVENT AT CRUISE. MAINTENANCE FOUND THE PACKINGS ON THE APU OIL HEATER (AALA202110252331) AND THE APU STARTER MOTOR MOUNT(AALA202110255943) LEAKING AND REPLACED THEM PER AMM 49-96-51 AND AMM 49-42-51. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ODORS BEING NOTED.