Installation of Teledyne Continental Motors (TCM) Model IO-550-N engine and Hartzell Propeller Model PHC-13YF-2AL/FLC7663DF-2R in the aft engine position

Installation of air intake louvers on the rear engine lower cowl in accordance with Aviation Enterprises Installation Instructions, dated June 15, 2003, or later FAA approved revision.

Installation of a landing gear in-transit warning light in 337 models that are equipped with an electric motor to retract landing gear instead of engine driven hydraulic pump.

Installation of a rear firewall engine accessory access door.

Installation of Electronics Int'l digital automatic engine analyzer.

Installation of leading edge cuffs, stall fences, droop wing tips, and vortex generators on rear engine lower cowling.

Installation of on-board engine analyzer system.

Replace propellers with MT-Propeller Company model MTV-12 propellers per Coastal Planes installation manual. No intermixing of propellers is allowed.

Installation of Woodward electronic propeller synchraphaser system.

Installation of a remote spin-on oil filter adapter. (GC-1B w/Lycoming or Cont 360 engine installed)