TM 1-1520-240-MTF2-62B BEFORE HOVER (CONT.) (4) Pilot’s No. 1 INC/DEC switch check forproper operation with momentarydecrease then increase checking N1,PTIT, torque, and RRPM response.(5) Copilot’s No. 1 INC/DEC switch — DECand hold. Check that RRPM stabilizesat 97% (+1%, -2%). If RRPM continuesto decrease below 97%, return RRPMto 100% by holding the switch in the INCposition and releasing it at 100%RRPM. Corrective maintenance actionis required.(6) Copilot’s FADEC No. 1 INC/DEC switch— INC Incrementally until RRPM nolonger increases. Check that RRPMstabilizes at 103% (+2%, -1%). If RRPMcontinues to increase, return RRPM to100% with the Copilots FADEC No. 1INC/DEC switch. Correctivemaintenance action is required.(7) Copilot’s beep No. 1 INC/DEC switchDEC as necessary to obtain 100%RRPM.(8) Thrust Cont lever — Increase tomaximum possible without lifting off theground. Check that RRPM stabilizes at100% 2%.(9) Thrust Control Lever — Reduce toGround Detent.(10) FADEC No. 1 switch — PRI.(11) ENG No. 2 ECL — FLT.(12) Repeat steps (1) through (10) with otherengine.
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