What was found
AFT FLIGHT ATTENDANT REPORTED ELECTRICAL ODOR AT 5,000 FT ON DOWNWIND APPROACH. EMERGENCY DECLARED. NO SMOKE NOTED, ODOR DISSIPATED PRIOR TO LANDING. MAINTENANCE ACCOMPLISHED MCM CARD 05-96-84 AND PERFORMED BOTH ENGINE RUNS ISLOATED BOTH PACKS AND BLEEDS, NO ODOR NOTED IAW AMM 71-00-00 AND 21-51-00. UNABLE TO DUPLICATE ANY ODORS. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK. AIRCRAFT WAS GROUNDED.