Staff Sgt. Timothy Gould, 60th Maintenance Squadron precision measurement equipment laboratory technician from Buffalo, New York, conducts a check of equipment inside the PMEL at Travis Air Force Base, Calif., Sept. 27, 2016. The Travis PMEL team conducts about 12,000 calibrations a year and supports units at 15 bases. (U.S. Air Force photo/Tech. Sgt. James Hodgman)
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