Pratt & Whitney Canada PT6A Turboprop, Instruction Manual

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moDulArity
The design of the PT6A engine allows it to be split into two major parts
called the power section assembly and the gas generator assembly. Only
certain engine models are defined as being modular, which allows the
interchange and tracking of each module. Three criteria must be met for the
engine to be modular.
1. Each major assembly is equipped with a data plate and a third data
plate is located on the inlet case for the complete engine assembly.
2. There is a logbook for each module.
3. In the appropriate SB on service lives, there will be an overhaul interval
quoted for each module and the engine assembly.
On non-modular PT6A engines, the power section assembly can be removed
and sent for service, but must be returned and installed on the same gas
generator assembly.
Small PT6A Engine
moDulArity
The design of the PT6A engine allows it to be split into two major parts
called the power section assembly and the gas generator assembly. Only
certain engine models are defined as being modular, which allows the
interchange and tracking of each module. Three criteria must be met for the
engine to be modular.
1. Each major assembly is equipped with a data plate and a third data
plate is located on the inlet case for the complete engine assembly.
2. There is a logbook for each module.
3. In the appropriate SB on service lives, there will be an overhaul interval
quoted for each module and the engine assembly.
On non-modular PT6A engines, the power section assembly can be removed
and sent for service, but must be returned and installed on the same gas
generator assembly.
Small PT6A Engine