What was found
AIRCRAFT RETURNED TO PLATFORM, (AUX PITOT HEAT) LIGHT TURNED ON. LIGHT WAS DEFERRED IAW MEL 30-5, CATEGORY (B) AND RVSM WAS MODIFIED WITH A NEW FLIGHT PLAN AT 270 FEET. DURING TRANSIT CHECK, THE AUXILIARY PITOT HEAT WAS REPLACED IAW FIM 30-31, TASK 801, TESTED CORRECT.