What was found
FO O2 MASK IS NOT WORKING PROPERLY ON THE TEST. DEFERRED OBSERVER'S OXYGEN SYS IAW MEL 35-10-1. R&R OBS O2 MASK IAW AMM 35-11-12. OPS CHECK PASSED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FO O2 MASK IS NOT WORKING PROPERLY ON THE TEST. DEFERRED OBSERVER'S OXYGEN SYS IAW MEL 35-10-1. R&R OBS O2 MASK IAW AMM 35-11-12. OPS CHECK PASSED.