What was found
CAPT OXYGEN MASK - PRESS TO TEST AND RESET- BUTTON NOT TESTING OK. LEAKING REGULATOR AT BOX. REPLACED O2 BOX AT CAPT POSITION. TESTED NORMALLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPT OXYGEN MASK - PRESS TO TEST AND RESET- BUTTON NOT TESTING OK. LEAKING REGULATOR AT BOX. REPLACED O2 BOX AT CAPT POSITION. TESTED NORMALLY.