PWC70496 Pratt & Whitney Borescope Guide Tube

Alternate Part Number:  PWC70496-1

Pratt & Whitney Borescope Guide for PT6-9 Turboshaft Engine

The Bell 412EPI is powered by a PT6T-9 turboshaft engine providing a 15 per cent increase in engine power, engine exceedance monitoring capability and engine maintenance reporting. Previous versions of the Bell 412 were all powered by earlier models from the PT6T family, including the PT6T-3D.

Certified in 2000 the -9 is similar to PT6T-3DF except for improved Hot Section to allow for increased ratings and new 30 second/2 minute OEI ratings structure. The PT6T-9 provides up to a 15% increase in engine power against previous PT6T versions. The engine is also equipped with an engine electronic control system (EEC). The software for the EEC has been developed and tested in accordance with the provisions of RTCA/DO178B, level A. Lightning protection limits, including power quality, electromagnetic compatibility and interference for the EEC system are specified in section 6 of the installation manual.

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