Before engine operation can be performed, all main rotor tie downs shall be removed.
Shoulder Harness Locks- Check W, W
Warning- If performing a mission with an Air Warrior ballistic upgrade plate (BUP) the seat belt buckle must be positioned below the BUP to prevent potential aft cyclic restriction
Warning- Prior to Putting on the safety belt , all loose straps must be secured properly to eliminate emergency egress snag hazards.
APU CONTR switch- ON N, N
Note- If the APU does not start and the APU Accum Low advisory does not appear with the APU Contr switch ON, the manual overde lever on the accumulator manifold should be pulled to attempt another start, and held until the APU has reached self- sustaining speed.
Note- If APU fails, note and analyze BITE indications before cycling BATT switch or before attempting another APU start.
APU Generator Switch - ON W
Warning- Stabilator will move to full trailing edge down position upon application of AC power. Assure stabilator area is clear prior to energizing stabilator system.
Doppler GPS- On and program N
Note- Only use map datum WGS-84 and NAD-27 Use map datum 47. Ref pg 3-73 (-10)
Caution/advisory/warning panels- Check as required N N
Note Pulsating of any cautions or advisories with the LOW ROTOR RPM warnings may occur in DIM mode
Note The switch legend on the VSI/HIS and the CIS mode select panel may change when the caution/advisory panel BRT/DIM – TEST switch is set to TEST. This can also occur in flight. The original indications may be restored by pressing the applicable switches