XR drag reduction system, including recontoured wing leading edge, ailerons, flaps, outboard wing, tip fin cuff, inboard wing, engine pylon, engine nacelle and convergent- diverget nozzles. (LEARJET 25C all S/N) (LEARJET 24F s/n 25-206 thru 25-229)

Replacement Thrust Reverser Accumulator for the TR3000 Thrust Reverser System.

Installation of access doors in engine nacelle according to Drawing 375201, Revision A, dated 1/13/78, or later FAA approved revision.

Installation of a fuel filter.

Installation of Woodward Electronic Engine synchronizer system.

Installation of electronic engine synchronizer system.

Installation of engine thrust reversers.

Installation of the Quiet Lear Hush Kit

Installation of engine thrust reversers

Installation of Bizjet International Inlet Anti-ice Heat Blanket.