Senior Airman Melissa Gallardore places retaining rings on a wheel. Senior Airman Melissa Gallardore places retaining rings on a wheel from the main landing gear of F-16 Fighting Falcon aircraft at Balad Air Base, Iraq, on March 29, 2008. Gallardore is a crew chief with the 332nd Expeditionary Maintenance Squadron deployed from the Montana Air National Guard. SHARE IMAGE: Download Image: Full Size (0.03 MB) Photo By: VIRIN: 986380-U-XFY41-155.jpg Photo Gallery