As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6167 - RDU-IAD - DURING DESCENT, AIRCRAFT MADE AN SCHEDULED LANDING AT IAD WITH ONE DISCREPANCY WHICH WAS ROW 1BC OXYGEN MASKS DEPLOYED. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REINSTALLED OXYGEN MASKS, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)