As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RDU - FLT 4549 - ON CLIMB-OUT, CREW HAD CARGO COMPARTMENT SMOKE WARNING AND DISCHARGED FIRE BOTTLES. DECLARED EMERGENCY AND RETURNED TO RDU. NO FIRE NOTICED. REPLACED CARGO FIRE BOTTLES. PERFORMED SYSTEMS OPS. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)