What was found
AIRCRAFT RETURNED TO PLATFORM, DUE TO DURING TAXING, IT WAS DETECTED AN ELEC CABLE BURNED ODOR WITH EVIDENCE OF WHITE SMOKE. PERFORMED FIM 21-00 TASK 806 PROCEDURE & SMOKE OR FUMES IN CABIN CONDITIONAL INSPECTION IAW MM 05-51-56. BOTH AIR CONDITIONED PACKS & BOTH ENGS & APU, DETECTING A CAP LOST ONLY. THE CAP WAS INSTALLED IAW AMM 21-00-00, TESTED CORRECT. THE PAX & GALLEY WIRING WAS CHECKED IAW AMM 33-20-00, NO DETECTING FAILURE, ALL CORRECT.