What was found
DFW - FLT 3828 - INBOUND FLT TO DFW FROM TUL, AFT AUX COMPARTMENT SMOKE WARNING ILLUMINATED 'SQUIB' LGIHT FLASHED ON AND THEN EXTINGUISHED BEFORE QRH PROCEDURES COULD BE COMPLETED. FLT ATTENDANT REPORTED THE AFT SMOKE LIGHT ILLUMINATED ON THE FA PANEL ALSO. REMOVED AND REPLACED AFT CARGO SMOKE DETECTOR DUE TO FALSE WARNING INDICATIONS. WORK ACCOMPLISHED IAW JIC 26-15-21. SYSTEM TEST GOOD. A/C RETURNED TO SERVICE. (M)