7) Warrant Officer Second Class (WO2) After holding the rank of Flight Sergeant for six months, successfully completing Level 4 training, and participating in the Cadet Fitness Assessment, and having been identified as a successful candidate through the merit review board process, a cadet is eligible for promotion to WO2 on the recommendation of the appropriate Flight Commander. Cadets must attain a minimum of "completed without difficulty" in PO3 503 (Leadership) to be promoted to the rank of Warrant Officer Second Class.