Senior Airman Craig Nicholson, a metals technician with the 433rd Metals Technology shop, compares a used C-5 Galaxy throttle-locking plate with a newly-made replacement that he made with the shop's "water jet." The jet-machining center, which just arrived in the M-TECH shop in April, manufactures certain C-5 components for an aging fleet whose parts have stopped being commercially made or available. The M-TECH shop belongs to one of three maintenance squadrons at the 433rd Airlift Wing, a C-5 equipped Air Force Reserve unit located at Joint Base San Antonio-Lackland.