As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 2855226) 121 FINDING - DURING THE O2 MASK DROP ALL LAVATORIES WERE DROPPED. IT WAS DISCOVERED THAT THE AFT RH LAVATORY HAD AN OXYGEN GENERATOR INSTALLED, WHILE THE OTHER TWO LAVS HAD OXYGEN BOTTLES INSTALLED. REMOVED AND REPLACED 02 GENERATOR IN AFT RH LAV PER JOB CARD 3520-01113-06 AND VA 79852.