As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/O OS MASK MICROPHONE NOT WORKING. C/A: SWAPPED THIRD OBSERVER SEAT OT MASK WITH F/O AND FWD THIRD OBSERVER SAET TO MEL 25-11-07. R/R THIRD OBESERVER O2 MASK PER A320 AMM 35-12. LEAK AND OPS TESTS OK. RFID INDUCTION C/W. F/O MASK RFID REPLACEMENT C/W TO REFLECT PART INSTALLED. REF TOPP 20-20-31. MEL PROC. REVERSED. MEL/PLAC. REMOVED. (LP: 9494826, AIRCRAFT WAS GROUNDED)