As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAINS O2 MASK COMPARTMENT DOOR IS LOOSE OR FALLING OFF. REMOVED AND REPLACED CAPTAINS 02 STOWAGE BOX IAW CRJ 900 AMM 35-11-15. PERFORMED OPERATIONAL TEST OF CAPTAINS 02 MASK IAW AMM TASK 23-51-00-710-801. OPS CHECK TEST GOOD. A/C OKAY FOR SERVICE.