As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) PASSENGER OXYGEN MASKS FAILED TO DEPLOY AT 14,000 FEET. SUSPECT CAUSED BY DRY AND STIFF HINGES ON THE OXYGEN MASK DOORS DUE TOINFREQUENT USE AND SOLVENTS USED IN REPAINTING HAVING WASHED ANYLUBRICANT FROM THE HINGES. THE TOILET OXYGEN MASK DOOR ELECTRIC LATCH WAS ALSO DEFECTIVE.