As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDIS 770 35-10 3916 30MAY19 MEM OPEN U LOGPAGES:3009614 RIGHT JUMP SEATER O2 MASK INOP, INOP 1ST OFFICERS MASK MOVED TO #3 JUMP SEATERS POSITION IN SWAPP. REMOVED AND REPLACED INOP OXYGEN MASK REF MM 35-11-51-4-98. OPS CHECK NORMAL. AC OK FOR SERVICE.