PT6T Engine Overhaul and Repair
FAA/EASA Certified Support for Bell 212/412 and Civil Utility Operators
Mint Turbines provides expert overhaul and repair services for PT6T turboshaft engines, with decades of experience supporting operators of the Bell 212, Bell 412, and other PT6T-powered aircraft. As an FAA- and EASA-certified MRO, we serve civilian, restricted category, and government agency operators with high-quality workmanship, short turn times, and OEM-compliant processes.
Whether you’re flying aerial firefighting missions, law enforcement operations, powerline patrols, or utility lift work, our PT6T capabilities are tailored to maximize uptime and ensure safe, reliable power.
PT6T Engine Services
We provide full support for the PT6T-3, PT6T-6, and PT6T-9 engine series, including:
✔ Complete Engine Overhaul Full teardown, cleaning, inspection, and assembly to Pratt & Whitney specifications.
✔ Hot Section Inspections (HSI)
On-condition maintenance to extend time between overhauls.
✔ Module-Level Repair
Compressor, power turbine, and reduction gearbox services.
✔ Accessory Overhaul & Testing
Fuel controls, governors, torque controllers, oil pumps, and more.
✔ Test Cell Validation
Full-power test runs under operational conditions.
✔ Exchange Engines
Available PT6T units to minimize AOG downtime.
✔ Rapid AOG Response
Global shipping and field support options.
PT6T-Powered Aircraft We Support
-
Bell 212 / 212SP / 412 / 412EP / 412HP / 412EPI
-
Sikorsky S-58T
-
Restricted category conversions from military surplus
-
Civil utility helicopters operating in firefighting, SAR, or law enforcement roles
Who We Serve
Mint Turbines supports a wide range of PT6T operators including:
-
Aerial firefighting fleets (state and federal)
-
Utility & powerline patrol operators
-
Law enforcement and border patrol units
-
Public safety & search-and-rescue (SAR) agencies
-
Private & restricted category operators flying ex-military conversions
Pratt & Whitney PT6T Engine Overhaul & Repair FAQs
Q: How often does a PT6T Twin-Pac® engine require overhaul?
A: The PT6T TBO (Time Between Overhaul) is typically 4,000–5,000 hours, depending on the variant and operating environment.
Q: Do you provide hot section inspections (HSI) for PT6T engines?
A: Yes. Our team performs expert HSIs to detect and resolve potential issues early, ensuring maximum engine life and performance.
Q: Are rental or exchange PT6T Twin-Pac® modules available?
A: Yes, we offer exchange modules to reduce your downtime during overhaul or repair.
Q: Can you support PT6T engines for Bell 212 and 412 helicopters?
A: Absolutely. We service PT6T engines across all applications, including Bell 212/412 fleets for commercial and government operators.