As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN. EMERGENCY DECLARED. ON DEPARTURE EN COUNTERED STRONG SMELL LIKE SMOKE, SHORTLY THEREAFTER THE SMOKE TOTLET MASTER CAUTION APPEARED. THE MESSAGE DISSAPPEARED ON FINAL WHEN THE THRUST WAS BROUGHT BELOW APPROXIMATELY 60%. COMPLIED WITH MINIMUM WORK-SCOPE FOR SMOKE & FUMES. FOUND COALESCER SOCKS DIRTY, PERFORMED GROUND RUNS NO DEFECT'S NOTED IAW 71-00-00.