What was found
IAH - FLIGHT 2176, THE CREW REPORTED A HUNG START FOLLOWED BY STRONG SMELL OF SMOKE IN THE COCKPIT. THE AIRCRAFT RETURNED TO THE GATE WHERE MAINTENANCE REMOVED AND REPLACED THE "A" IGNITOR ON THE NUMBER TWO ENGINE, OPERATIONALLY TESTED WITH NO DEFECTS, AND NO SMELL OF SMOKE, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.