What was found
MODERATE AMOUNT OF SMOKE, SMOKE DISAPATED WITH 5 MINUTES BUT STRONG SMOKE ODOR REMAINED. MAINTENCE ACCOMPLISHED WORK CARDS 001, 002, AND 004. SMOKE ODOR FUMES TROUBLESHOT, APU SMOKE ODOR FUMES TROUBLE SHOT AND DECONTAMINATED OF ECS. THE AIRCRAFT WAS GROUNDED. MAINTENANCE ALSO PERFORMED SATISFACTORY OPERATIONAL CHECK.