Global Turbine Component Technologies offers large exit duct overhauls for PT6A-11, 11AG, 15AG, 21, 25, 25A, 25C, 27, 28, 34, 34AG, 34B, 36, 110, 112, 114, 114A, 135 and 135A engines. For more information call (860) 528-4722 or email [email protected].