As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1197, PVD-FLL. 'AT CRUISE RECEIVED AN ADVISORY FOR CREW OXY LOW, PSI FLASHING AT 540 PSI. PSI CONTINUED TO DROP, WE SHUT IT OFF AT 500 PSI, PSI STAEDY WITH CREW SUPPLY SELECTED OFF * ALL CREW O2 MASKS CLOSED AND OFF; REMOVED AND REPLACED CREW O2 BOTTLE IAW AMM 35-11-00. LEAK CHECK OK REF L/P 3772788-1 (REPLACED 2ND OBS O2 STOWAGE BOX ASSY PER MM 35-12-41 OP AND LK CHECK GOOD) AND 3772787-2 (REPLACED CAPT'S O2 STOWAGE BOX ASSY PER M/M 35-12-41. OPS & LEAK CHECK GOOD.).'