This is a 2-year Cost Plus Fixed Fee R&D Engineering Services contract to support F-15, F-16, B-1B, and B-2 power take off shafts and power transmission shafts. The work involves program management and engineering services to resolve Service Revealed Deficiencies (SRDs) that cause safety issues or grounded aircraft. Foreign participation is restricted. The estimated award date is 30 September 2026. The location for performance of services is not specified.