Installation of full turning contoured engine exhaust stacks on Pratt & Whitney Canada PT6A-38, PT6A-41, or PT6A-42 engines.
FAA holder: Metrea Special Aerospace ISR Inc.
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 8 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation A100-1 (U-21J). Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 8 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Metrea Special Aerospace ISR Inc.
FAA holder: Elliott Aviation Technical Products Development Inc.
FAA holder: Aero-Mach Wilco LLC
FAA holder: Blackhawk Aerospace Technologies Inc.
FAA holder: S-TEC Corporation