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DESCRIPTION:


  1. Crew actions.

        1. The MP will determine which checks to perform and perform the checks in the MTF sequence. He will brief the RCM/NCM, if available, concerning any Warnings, Cautions, or Notes that may impact upon the checks to be performed. He may direct assistance from the RCM or NCM to clear the aircraft and maintain obstacle avoidance.

        2. The RCM or NCM should assist the MP as directed.

  2. Procedures. If a RCM or NCM is available, brief him on the maneuvers to be performed, and direct his assistance in clearing the aircraft and maintaining obstacle avoidance. Confirm the aircraft maneuver area is clear. Do not exceed a 50-foot hover height during these flight maneuvers. Establish a stabilized 3-foot hover into the wind. Perform the following procedures for the appropriate aircraft type:

        1. OH-58D(I). Make a positive increase in the collective pitch. Confirm that the engine responds smoothly and rapidly, and that NG increases in less than 1 second and then stabilizes.

      1. Land the aircraft, reduce the throttle to the idle position, and select the Fuel Control Panel switch to ANLG BACK UP. Note the fuel control caution and advisory messages, and acknowledge the audio.

      2. Increase the throttle to the full-open position. NR/NP should stabilize at 102-103%.

      3. Alternately activate the RPM increase/decrease switch to the plus (+) and minus (-) positions. NR/NP should remain constant.

      4. Verify the maneuver area is clear and reestablish a stabilized 3-foot hover. Make a positive increase in collective pitch and note NR/NP. Confirm that NG increases in less than 1 second then stabilizes.

      5. Land the aircraft, and reduce the throttle to the idle position. Select the Fuel Control Panel switch to NORM and increase the throttle to the full-open position. Adjust the RPM increase/decrease switch to achieve 100% NR.

      6. Upon completion of the check, record required data on the MTF check sheet.

        1. OH-58D(R). Select the FADEC monitor page and note ENG SURGE events.

      7. Make a positive increase in the collective pitch. Confirm that the engine responds smoothly and rapidly, and that NG increases in less than 1 second then stabilizes.

      8. Reselect the FADEC monitor page to verify that ENG SURGE numbers have not incremented.

      9. Upon completion of the check, record required data on the MTF check sheet.
  • TRAINING AND EVALUATION REQUIREMENTS:


    1. Training. Training may be conducted academically or in the aircraft.

    2. Evaluation. Evaluation will be conducted in the aircraft.
  • REFERENCES: Appropriate common references.


    1. 4178

      1. PERFORM MANUAL THROTTLE OPERATIONS CHECK (FADEC)
    1. CONDITIONS: In an OH-58D(R) helicopter, over a level surface, heading into the wind, with the MMS off, during the day only.

    2. STANDARDS: Appropriate common standards plus the following:


      1. Maintain aircraft heading into the wind, ± 10 degrees.

      2. Smoothly coordinate throttle and collective controls.

      3. Maintain a 3-foot hover ±1 foot.

      4. Maintain RPM NR 100 ± 2% at a hover.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will perform P* duties during this check. He will brief the RCM/NCM, if available, concerning any Warnings, Cautions, or Notes that may impact upon the checks to be performed. He may direct assistance from the RCM or NCM to clear the aircraft and maintain obstacle avoidance.

            2. The RCM or NCM should assist the MP as directed.

      2. Procedures. Land the aircraft and reduce the throttle to the engine idle position.

            1. Select the MANUAL position on the FADEC AUTO/MANUAL push-button switch. Confirm that the MANUAL legend illuminates, the FADEC MANUAL warning message displays on the MFD, and the FADEC audio is heard in both headsets. Acknowledge the FADEC audio.

            2. Smoothly adjust the throttle to 100% NP. Continue to carefully adjust the throttle while increasing collective to establish a stabilized 3-foot hover into the wind.

            3. While at a hover, maintain NP at 100 2%. Note engine response and NP fluctuations.

            4. Land the aircraft while continuously monitoring and maintaining RPM.

            5. With the aircraft skids firmly on the ground, reduce throttle to idle while decreasing the collective to the full down position.

            6. Select the FADEC AUTO/MANUAL push-button switch to the AUTO position. Confirm the AUTO legend on the switch is illuminated and FADEC MANUAL message deletes from MFD. FADEC MAINT will momentarily display on the MFD. Confirm no degrade messages display on the FADEC MONITOR page.

            7. Increase the throttle to full open, and ensure that the FADEC system operates properly and maintains NP at 100%.

            8. Upon completion of the check, record required data on the MTF check sheet.

    1. In case of an actual in-flight emergency that requires FADEC MANUAL mode operation, the crew will use the procedures in TM 55-1520-248-10 or TM 55-1520-248-CL.
    1. TRAINING AND EVALUATION REQUIREMENTS:


      1. Training. Training may be conducted academically or in the aircraft.

      2. Evaluation. Evaluation will be conducted in the aircraft.
    2. REFERENCES: Appropriate common references.


    1. 4186

      1. PERFORM HOVER/HOVER BOB-UP CHECK
    1. CONDITIONS: In an OH-58D helicopter.

    2. STANDARDS: Appropriate common standards plus the following:


      1. Maintain a 3-foot hover altitude, ±1 foot.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will perform P* duties during this check. He will brief the RCM/NCM, if available, concerning any Warnings, Cautions, or Notes that may impact upon the checks to be performed. He may direct assistance from the RCM or NCM to clear the aircraft and maintain obstacle avoidance.

            2. The RCM or NCM should assist the MP as directed.

      2. Procedures. If the RCM/NCM is available, brief him on the maneuvers to be performed, and direct his assistance in clearing the aircraft and maintaining obstacle avoidance.

            1. Confirm the aircraft maneuver area is clear.

            2. Establish a stabilized 3-foot hover into the wind, over an identifiable position.

            3. Select the hover page on the MFD. Press the hover bob-up switch, note the hover position box, and stabilize the aircraft for 15 seconds. The hover position box should not drift.

            4. Reposition the aircraft approximately 25 to 30 feet forward of the original position, then hover laterally, either left or right, 25 to 30 feet.

            5. Confirm the maneuver area still remains clear. Reposition the aircraft back to the original start point and note that the hover position box on the MFD is approximately at the original position.

            6. Upon completion of the check, record required data on the MTF check sheet.

    1. When flight is conducted away from the position box, the velocity vector should move in the appropriate direction and the position box should move opposite the velocity vector.

    2. Results of this check may not be valid if FOM is not 1, or if the navigation system is not in the blended mode.
    1. TRAINING AND EVALUATION REQUIREMENTS:


      1. Training. Training may be conducted academically or in the aircraft.

      2. Evaluation. Evaluation will be conducted in the aircraft.
    2. REFERENCES: Appropriate common references.





    1. 4210

      1. PERFORM TAKEOFF AND CLIMB CHECKS
    1. CONDITIONS: In an OH-58D helicopter.

    2. STANDARDS: Appropriate common standards plus the following.

    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will perform P* duties during this check. He will brief the RCM/NCM, if available, concerning any Warnings, Cautions, or Notes that may impact upon the checks to be performed. He may direct assistance from the RCM or NCM to clear the aircraft and maintain obstacle avoidance and airspace surveillance. The MP may direct the RCM/NCM to assist in monitoring aircraft instruments and recording fuel consumption data.

            2. The RCM or NCM should assist the MP as directed.

      2. Procedures. If the RCM/NCM is available, brief him on the maneuvers to be performed, and direct his assistance in clearing the aircraft and maintaining obstacle avoidance and airspace surveillance.

            1. Confirm the aircraft maneuver area is clear. Perform before takeoff checks and execute a normal takeoff.

            2. During the takeoff and climb, verify that flight control positions and instruments are normal for conditions and there are no unusual vibrations.

            3. Note that the radar altimeter HI indicator flashes at the pre-selected altitude, ±10 feet.

            4. Check for unusual vibrations.

            5. Initiate a fuel consumption check when in straight and level flight.

            6. Announce check completion. Record on the MTF check sheet any required information.
    4. TRAINING AND EVALUATION REQUIREMENTS:


      1. Training. Training may be conducted academically or in the aircraft.

      2. Evaluation. Evaluation will be conducted in the aircraft.
    5. REFERENCES: Appropriate common references.


    1. 4232

      1. PERFORM CONTROL RIGGING CHECK
    1. CONDITIONS: In an OH-58D helicopter.

    2. STANDARDS: Appropriate common standards plus the following:


      1. Maintain airspeed of 100 ±5 KIAS, into the wind.

      2. Maintain mast torque at 70 ±2 percent.

      3. Maintain the aircraft in trim.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will perform P* duties during this check. He will brief the RCM/NCM, if available, concerning any Warnings, Cautions, or Notes that may impact upon the checks to be performed. He may direct assistance from the RCM or NCM to clear the aircraft and maintain airspace surveillance.

            2. The RCM or NCM should assist the MP as directed.

      2. Procedures. If the RCM/NCM is available, brief him on the maneuvers to be performed, and direct his assistance in clearing the aircraft and maintaining airspace surveillance.

            1. Select an altitude that will allow for safe recovery.

            2. Establish trimmed level flight into the wind at 70 % mast torque and 100 KIAS. It may be required to either climb or dive slightly to establish the check conditions.

            3. Select SCAS REL switch and acknowledge the SCAS DISENG audio. Select FORCE TRIM to ON. Relax cyclic pressure and note that the cyclic remains in place.

            4. When the cyclic check is complete, select the FORCE TRIM to OFF.

            5. While maintaining the aircraft in trim, confirm the pilot’s station anti-torque pedal position is neutral to 1.5 inches right pedal forward. Relax the pressure on the anti-torque pedals and check for pedal creep.

            6. Reengage the SCAS PITCH/ROLL and YAW switches, and confirm that the SCAS DISENG message is deleted from the MFD.

            7. Upon completion of the check, record required data on the MTF check sheet.
    4. TRAINING AND EVALUATION REQUIREMENTS:


      1. Training. Training may be conducted academically or in the aircraft.

      2. Evaluation. Evaluation will be conducted in the aircraft.
    5. REFERENCES: Appropriate common references.


    1. 4236

      1. PERFORM AUTOROTATION RPM CHECK
    1. CONDITIONS: In an OH-58D helicopter.

    2. STANDARDS: Appropriate common standards plus the following:


      1. Select a suitable autorotation area that will permit a safe descent and emergency touchdown landing.

      2. Maintain airspeed of 55 ±5 KIAS, in trim, into the wind, during autorotation.

      3. Complete the power recovery above 500 feet AGL.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will perform P* duties during this check. He will brief the RCM/NCM, if available, concerning any Warnings, Cautions, or Notes that may impact upon the checks to be performed. He may direct assistance from the RCM or NCM to clear the aircraft and maintain airspace surveillance.

            2. The RCM or NCM should assist the MP as directed.

      2. Procedures. If the RCM/NCM is available, brief him on the maneuvers to be performed, and direct his assistance in clearing the aircraft and maintaining airspace surveillance.

            1. Select an autorotation area that will permit a safe descent and emergency touchdown landing if necessary.

            2. Confirm that the HTR and ENG ANTI-ICE switches are OFF.

            3. Maneuver the aircraft to establish an upwind track to the selected area. Establish 55 KIAS, level flight, in trim, at an altitude that will allow safe recovery. Confirm the aircraft maneuver area is clear.

            4. Contact ATC as appropriate and announce initiation of the maneuver.

            5. Smoothly lower the collective to the full-down position and confirm that NR remains within limits.

            6. Retard the throttle to the engine-idle position and confirm that NG stabilizes at 63 to 65%.

            7. Confirm the aircraft is in trim and that NR is stabilized within the normal operating range.

            8. Verify the cyclic position is normal for conditions, and sufficient right pedal remains. Note any increase or decrease in main rotor vibrations, and that MQ/EQ indications are at or near 0%.

            9. Smoothly advance the throttle to full open, adjusting the collective as necessary to maintain NR/NP within limits.

            10. Clear the maneuver area in the direction of the climb. Increase the collective and establish a climb prior to descending below 500 feet AGL.

            11. Contact ATC as appropriate.

            12. Upon completion of the check, record required data on the MTF check sheet.
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