As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE WARNING LIGHT ILLUMINATED IN FLT ON APPROACH TO LANCASTER (LNS) GOING ON AND OFF INTERMITTENTLY, WITH ASSC MASTER WARNING LIGHT. INSP BAG BAY NO FIRE OR SMOKE DETECTED. REMOVED AND REPLACED FWD AND AFT SMOKE DET'S AS REQ. MECH FOUND ACM LEAKING OIL. BAG BAY SMOKE DET'S REMOVED AND REPLACED. FERRIED TO MDT. REMOVED AND REPLACED ACM, OPS CHECK GOOD.