-1582 POWER PLANT - GENERAL - INTERMIX ONE OR SUBSTITUTE ANY COMBINATION OF CFM56-7B SINGLE ANNULAR SUPERSEDED COMBUSTOR (SAC) ENGINES OR CFM56-78 HIGH PRESSURE COMPRESSOR AND/OR HIGH PRESSURE TURBINE TECHNOLOGY INSERTION KIT ENGINES FOR THE TWO CFM56-7B SAC/3 TECHNOLOGY INSERTION PROGRAM BASE ENGINES (SUPERSEDED BY S