What was found
FO O2 MASK DOES NOT PASS PREFLIGHT TEST WHEN WE PRESS THE "PRESS TO TEST AND REST" BUTTON, THE CATSEYE DOES NOT APPEAR. REMOVED AND REPLACED FO MASK STOWAGE BOX IAW 35-11-12. OPS CHECK GOOD. A/C OK FOR SVC.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FO O2 MASK DOES NOT PASS PREFLIGHT TEST WHEN WE PRESS THE "PRESS TO TEST AND REST" BUTTON, THE CATSEYE DOES NOT APPEAR. REMOVED AND REPLACED FO MASK STOWAGE BOX IAW 35-11-12. OPS CHECK GOOD. A/C OK FOR SVC.