As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/O FOUND OXY MASK TEST FAILING, YELLOW INDI NOT GOING OUT DURING TEST. SWAPPED F/O AND PRIMARY OBS O2 MASKS - PLACED OBS SEAT ON MEL PER 25-11-06B. M PROCEDURES C/W OBS SEAT INOP. INSTALLED PLACARD. OK FOR CONT SVC. R/R FO OBS O2 MASK STOWAGE BOX PER A320 AMM 35-12. OPS TEST GOOD . MEL AND PLAC REMOVED. M PRO REVERSED.