Performing a coin tap test
Airmen from the 552nd Maintenance Squadron perform coin tap test with quarters on outboard ailerons of an E-3 Sentry to assess damage from the hail storm that hit Tinker Air Force Base May 1. Staff Sgt. Terry Shadduck, left, and Senior Airman Brian Volkmar, both airctaft structural maintenance technicians from the fabrication and sheet meal shop, perform inspections on the starboard (right side) ailerons. (Air Force photo by Brion Ockenfels)