Helicopter Mine Countermeasures Squadron 14 Sailors prepare a MH-53E Sea Dragon Aug. 31, 2017, at Joint Base San Antonio-Lackland, Texas, for Hurricane Harvey relief missions. The unit flew in from Key West, Fla., and has already supported several logistics missions for Federal Emergency Management Agency transporting food, water and supplies. (U.S. Air Force photo by Ismael Ortega)

A MH-53E Sea Dragon with Helicopter Mine Countermeasures Squadron 14 departs Aug. 31, 2017, at Joint Base San Antonio-Lackland, Texas, for Hurricane Harvey relief missions. The unit flew in from Key West, Fla., and has already supported several logistics missions for Federal Emergency Management Agency transporting food, water and supplies. (U.S. Air Force photo by Ismael Ortega)

A MH-53E Sea Dragon with Helicopter Mine Countermeasures Squadron 14 departs Aug. 31, 2017, at Joint Base San Antonio-Lackland, Texas, for Hurricane Harvey relief missions. The unit flew in from Key West, Fla., and has already supported several logistics missions for Federal Emergency Management Agency transporting food, water and supplies. (U.S. Air Force photo by Ismael Ortega)

A MH-53E Sea Dragon with Helicopter Mine Countermeasures Squadron 14 departs Aug. 31, 2017, at Joint Base San Antonio-Lackland, Texas, for Hurricane Harvey relief missions. The unit flew in from Key West, Fla., and has already supported several logistics missions for Federal Emergency Management Agency transporting food, water and supplies. (U.S. Air Force photo by Ismael Ortega)

MH-53E Sea Dragon pilots with Helicopter Mine Countermeasures Squadron 14 perform pre-flight checks prior Aug. 31, 2017, at Joint Base San Antonio-Lackland, Texas, for Hurricane Harvey relief missions. The unit flew in from Key West, Fla., and has already supported several logistics missions for Federal Emergency Management Agency transporting food, water and supplies. (U.S. Air Force photo by Ismael Ortega)

A MH-53E Sea Dragon with Helicopter Mine Countermeasures Squadron 14 departs Aug. 31, 2017, at Joint Base San Antonio-Lackland, Texas, for Hurricane Harvey relief missions. The unit flew in from Key West, Fla., and has already supported several logistics missions for Federal Emergency Management Agency transporting food, water and supplies. (U.S. Air Force photo by Ismael Ortega)

Helicopter Mine Countermeasures Squadron 14 Sailors prepare a MH-53E Sea Dragon Aug. 31, 2017, at Joint Base San Antonio-Lackland, Texas, for Hurricane Harvey relief missions. The unit flew in from Key West, Fla., and has already supported several logistics missions for Federal Emergency Management Agency transporting food, water and supplies. (U.S. Air Force photo by Ismael Ortega)