Installation of Teledyne Cont motors TSIO-520-NB engines as modified per STC SE4327SW and McCauley model no. 3AF32C515/NLA-4.0 to 5.5 props. Increase maximum takeoff weight to 6290 lbs. and maximum ramp weight to 6330 lbs.

Installation of McCauley 3AF32C515/82NLA-4.0 propellers on Cessna 340 and 340A

Fuel source modification for Ranger APU approved under STC SA2-962.

Installation of throttle, mixture, and propeller control cables.

Andover type D-2, Model V-32 APU and associated equipment for ground operation only.

Installation of TCM TSIO-520N or NB engines (modified by STC SE3714SW). Increase takeoff weight to 6140 pounds; landing weight remains at 5975 pounds. Installation of McCauley 3AF32C93/82NC-6.0, or McCauley 3AF32C505/82NEA-6.0 propellers.

Installation of TCM TSIO-520N or NB engines. Installation of Hartzell PHC-C3YF-2UF/FC7663DB-2Q propellers, McCauley 3AF32C93/82NC-6.0, or McCauley 3AF32C505/82NEA-6.0 propellers.

Oil tank and supporting structure rework (relocation of oil tank installation plumbing, oil tanks support rework, engine oil tank modification).

Installation of Hartzell PHC-C3YF-2UF/FC7663D-2Q or PHC-C3YF-2UF/FC7663DB-2Q propeller.

Alternate fuel source in aircraft with Pratt & Whitney R-2800 Series C engines and fuel flowmeters.