Installation of AiResearch TPE331-1-151 engine.

Installed 3/8 O.D. line from RH propeller governor pad on RH engine to LH propeller pad on LH engine.

Installation of Pratt & Whitney Engine Services, Inc. Data Transmission Unit (DTU)

Installation of electrothermal propeller deicing system.

Installation of various SMR Technologies electrical propeller deicer models.

Install electrothermal propeller deicing system.

Separation of hydraulic pump seal drain from engine drain manifold.

Electrothermal propeller deicing system.

Electrothermal propeller deicing system.

Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW)