As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PASSENGER OXYGEN SYSTEM FUNCTIONAL CHECK IAW ALLEGIANT TASK 352000-02-1-001 OF AUTOMATIC MASK RELEASE FOUND ALTITUDE SWITCH OUT OF LIMITS. DUE THIS CONDITION THE ALTITUDE SWITCH WAS REPALCED IAW A320 AMMTASK 35-23-15-000-001-A AND 35-23-15-400-001-A REV 40 DATED 05-01-2023. AFTER THE SYSTEM TEST WAS FOUND OK. THIS WORK IS COVERED BY COOPESA JOB A1N150 ITEM 1-23 P/N OFF 4441085-000 S/N OFF 02102 P/N ON 4441085-000 S/N ON 42085-000-05465,