The following specs from Rolls Royce C47B maintenance manual are as follows: - Replace 1st ,2nd, 3rd and 4th stage wheels with new. - Replace all other required turbine parts with new and restoration of all other turbine parts required by the overhaul manual. - Compressor Assy 2000-hour inspection. - Engine gearbox external inspection and replace FWU double lip seals with new seals. -Engine and combustion section build kits and test cell runs, additional parts restoration as required. - Comply with 2000-hour inspection IAW RR 250-C47B maintenance manual Chapter 72-00-00 pg 618. See attached checklist. a. Remove and replace fuel filter element. b. Inspect combustion liner. c. Examine outer combustion case for cracks using Leak-tec and/or FPI. d. Inspect compressor discharge air tubes. e. Inspect the spur adapter gear shaft; compressor rotor splined adapter and associated impeller bore. f. Inspect the turbine to compressor coupling, turbine splined adapter, power turbine inner shaft, and turbine shaft to pinion gear coupling. g. Examine the power drivetrain gears.