As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6473 - JFK-IAD - DURING CLIMB, MADE A UNSCHEDULED LANDING AT JFK, DUE TO BAGGAGE SMOKE DETECTOR LIGHT ILLUMINATED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED SMOKE DETECTOR, OPS CHECK OK. AIRCRAFT WAS RLEASED AND APPROVED FOR RETURN TO SERVICE. (M)