A brake down
Jerry Cazeault uses a dipstick to check the oil after a brake change on Seymour Johnson Air Force Base, N.C., Dec. 27, 2011. The reading from the dipstick allows a mechanic to know if the oil in a car is too low, which could cause damage to an engine. Cazeault is a 4th Force Support Squadron auto skills development mechanic from Woonsocket, R.I. (U.S. Air Force photo by Senior Airman Whitney Stanfield)

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Photo by: Senior Airman Whitney Stanfield |  VIRIN: 111227-F-JA180-043.JPG