LONGUEUIL, Canada - Pratt & Whitney Canada has extended the basic Time Between Overhaul (TBO) and Hot Section Inspection (HSI) intervals for in-service and future PT6A-140, -140A and -140AG engines.
The TBO is increasing to 4,000 from 3,600 hours, while the HSI interval is extended from 1,800 to 2,000 hours. These improvements will benefit general aviation operators by increasing flying time and decreasing maintenance costs.
The increased TBO and HSI intervals are made possible by the exceptional performance and reliability of the PT6A engine family, proven over more than 50 years, with 71 models and 128 aircraft applications. These achievements have established it as a global leader in the general aviation segment and a benchmark for single-engine instrumental flight rules (IFR) revenue flights.
The PT6A-140 series is the latest addition to the PT6A family. The PT6A-140 entered into service in 2012 on the Cessna Grand Caravan EX, followed by the PT6A-140AG variant created for the agricultural segment in March 2015.
There are already over 450 engines in service around the world, which have accumulated an excess of 500,000 hours.
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