Standardizing wingmanship: 19th MXS PMEL
U.S. Air Force Airman 1st Class Matthew Petrulis, 19th Maintenance Squadron precision measurement equipment laboratory journeyman, calibrates a height transfer standard at Little Rock Air Force Base, Arkansas, May 16, 2019. PMEL Airmen are responsible for the accuracy of equipment used to take different types of measurements needed to perform the mission at Little Rock AFB and the surrounding areas. (U.S. Air Force photo by Airman 1st Class Kristine M. Gruwell)

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Photo by: Airman 1st Class Kristine M. Gruwell |  VIRIN: 190516-F-ID976-1035.JPG