As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/ABE - FLT 7158 - DURING DESCENT AT 2300 HOURS, MAKE SCHEDULED LANDING WITH ONE DISCREPANY WHICH WAS BAGGAGE BAY SMOKE DETECTOR WARNING LIGHT ILLUMINATED. AIRCRAFT LANDED, WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND CLEANED SMOKE DETECTOR, OPS CHECK OK. AIRCRAFT RELEASED AND RETURNED TO SERVICE. (X)