Team Travis holds Senior NCO Leadership Conference Published Oct. 28, 2011 By Master Sgt. Robert Wade 349th Public Affairs TRAVIS AIR FORCE BASE, Calif. -- Chief Master Sgt. John Evalle, 60th Air Mobility Wing command chief, addresses attendees at the Senior NCO Leadership Conference held here during September's B flight unit training assembly. Attendees included both Travis active duty and Reserve Airmen from throughout 4th Air Force.