A DC9-41 ON SHORT FINAL APCH AT 2100 FT DECLARED AM EMER DUE TO A FLICKERING CABIN CARGO SMOKE DETECTOR LIGHT CAUSED BY A LOOSE WIRING CONNECTION ON THE #5 CABIN SMOKE DETECTOR.

Narrative

ON SHORT FINAL CARGO SMOKE LIGHT FLICKERED ON AND OFF; CAME ON MOMENTARILY; THEN OFF. CONTINUED APCH AND LANDED. AFTER EXITING THE RWY AND COMING TO A STOP; I GOT UP AND OPENED THE COCKPIT DOOR AND SAW SMOKE; CALLED FOR EMER EQUIP FOR ASSISTANCE. FIRE DEPT ARRIVED AND OPENED ACFT DOORS AND SAW THE SMOKE/MIST. AS IT QUICKLY DISSIPATED; FIRE DEPT CHKED ACFT FOR FURTHER SMOKE AND FOUND NO FIRE; SMOKE OR HAZMAT SPILLED. CARGO WAS UNLOADED AND FURTHER CHKED FOR HAZMAT SPILLS; AND NONE FOUND. MAINT INSPECTION OF THE ACFT FOUND THE #5 SMOKE DETECTOR HAD A LOOSE CONNECTION; AND WAS REPLACED. ALSO THE AIR CONDITIONING COALESCER FILTER BAG WAS CHANGED; AS THIS WAS THOUGHT TO HAVE CAUSED THE AIR CONDITIONING SYS TO MAKE A FOG/MIST DUE TO THE HIGH HUMIDITY AND OUTSIDE AIR TEMP. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A DC9-41 AND THE SMOKE DETECTOR WAS LOCATED IN THE #5 POS IN THE CABIN. THE RPTR SAID THE DETECTOR HAD A LOOSE WIRING CONNECTION AND WAS REPAIRED BY MAINT.