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SINGLE PILOT CONSIDERATIONS: When a NCM is on board the MP will brief and assign him duties appropriate to his proficiency level. Except for rated aviator duties, the RCM crew actions described above may be accomplished by the NCM at the direction of the MP. If the MP is the only RCM on board he will land the aircraft prior to comparing the aircraft data to the power assurance chart.

  • 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. 4142

      1. PERFORM HOVER POWER CHECK
    1. CONDITIONS: In an OH-58D helicopter, and power assurance check completed.

    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 the checks in sequence. He may direct assistance from the RCM or NCM as necessary to clear the aircraft and maintain obstacle avoidance. The RCM may be directed to maintain the aircraft hover while the MP records the instrument readings. The P* will remain focused outside during the maneuver. The MP will ensure all Warnings, Cautions, and advisories are reviewed and acknowledged and instrument readings are recorded as appropriate.

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

      2. Procedures. Coordinate with and brief the RCM/NCM as appropriate. Confirm the aircraft maneuver area is clear.

            1. Establish a stabilized 3-foot hover into the wind.

            2. Note and record the MAST TQ, TGT, and NG. Confirm that readings are normal for the conditions. Compare the recorded data with the PPC in accordance with Task 1028, Perform hover power check.

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

            4. Before proceeding to the test flight hover area check the parking area for indications of fluid leakage from the aircraft.
    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. 4156

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

    2. STANDARDS: Appropriate common standards plus the following:


      1. Hovering turns.

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

            2. Turns not to exceed the rate of 90 degrees in 4 seconds.

      2. Sideward flight checks.

            1. Maintain heading into the wind.

            2. Maintain a 3-foot hover altitude, ±1 foot.

            3. Limit ground speed to a maximum of 5 knots.

      3. Forward hovering flight checks; maintain a 5-foot hover altitude, ±1 foot.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will determine the systems to be checked and normally perform the hover checks in the MTF sequence. He may direct assistance from the RCM or NCM, if available, 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. Upon completion of the checks, record required data on the MTF check sheet.

    1. Confirm the aircraft maneuver area is sufficient and is clear prior to initiation of each of the following procedures:

            1. Hovering turns. Establish a stabilized 3-foot hover into the wind. Note the aircraft heading. Make a smooth and controlled pedal turn 90 degrees to the left of the initial heading at a constant rate of turn. Smoothly return the aircraft to the initial heading. During the maneuver note that excessive pedal input, relative to current wind conditions, is not required during the maneuver. Repeat the check for a right pedal turn. Announce when check is complete.

            2. Sideward hovering flight checks. Re-establish as necessary, a stabilized 3-foot hover into the wind. Smoothly initiate sideward flight to either side. During the maneuver note that no excessive control inputs are required, relative to current wind conditions, and that desired aircraft response is achieved. Center the cyclic, and the aircraft should drift to a stop. Repeat the check to the opposite side. Announce when check is complete.

            3. Forward hovering flight checks. Establish a stabilized 5-foot hover into the wind. While maintaining a 5-foot hover height, apply sufficient forward cyclic to accelerate to ETL. Note that excessive control inputs are not required during the maneuver, no abnormal vibrations are present, and that aircraft response is normal. Announce when check is complete.
    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. 4166

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

    2. STANDARDS: Appropriate common standards plus the following:


      1. Maintain a 10-foot hover altitude, ±2 feet.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will determine the SCAS systems to be checked, and normally perform the checks in the MTF sequence.

            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. Confirm the aircraft maneuver area is clear.

            1. Establish a stabilized 10-foot hover into the wind.

            2. In one continuous movement, displace the cyclic approximately 1-inch aft of center, 1-inch forward of center, (or forward then aft) and then return the cyclic to center. Note an almost immediate damping of the fuselage moment. Stabilize the aircraft.

            3. In one continuous movement, displace the cyclic approximately 1-inch right of center, 1-inch left of center, (or left then right) and then return the cyclic to center. Note an almost immediate damping of the fuselage moment. Stabilize the aircraft.

            4. In one continuous movement, displace the left (or right) pedal approximately 1-inch forward of the hover pedal position, and then return the pedal to the original position. Note an almost immediate damping of fuselage moment. Return the aircraft to a stabilized hover into the wind and repeat the check using the other pedal.

            5. Select SCAS REL switch and acknowledge the SCAS DISENG audio. Repeat the pitch, roll, and yaw checks with SCAS disengaged. Note that the resultant moment of the fuselage will be more pronounced and usually tend to continue after the displaced control is centered.

            6. Reengage SCAS PITCH/ROLL and YAW switches. Verify the SCAS DISENG message deletes. 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. 4168

      1. PERFORM HEADING HOLD CHECK
    1. CONDITIONS: In an OH-58D helicopter.

    2. STANDARDS: Appropriate common standards plus the following:


      1. Maintain the appropriate hover altitude, (either 3 or 10 feet as appropriate) ±1 foot.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will normally perform the checks in the MTF sequence. He may direct assistance from the RCM or NCM, if available, to clear the aircraft and maintain obstacle avoidance. The MP may direct the RCM/NCM to assist with monitoring and acknowledging MFD indications and messages.

            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. Confirm the aircraft maneuver area is clear.

            1. Establish a stabilized 3-foot hover into the wind.

            2. Select HSD, and enter MAP OFFSET mode. Engage heading hold, note the aircraft heading, and confirm that the HDG HOLD is displayed on the MFD.

            3. While guarding, but without applying pressure to the anti-torque pedals, verify that the heading is maintained within ±2 degrees of the initial reference heading using the MAP OFFSET display.

            4. Continue guarding the anti-torque pedals and moderately increase the collective to bring the aircraft to a stabilized 10-foot hover. Verify HDG HOLD remains engaged following the ascent. When the aircraft is stabilized, note the MAP OFFSET display, and verify the aircraft heading is re-established to within ±2 degrees of the initial 3-foot hover height reference.

            5. While guarding the anti-torque pedals, lower the collective to re-establish a 3-foot stabilized hover.

            6. Displace the HDG HOLD ENGA/DISENG trim switch to either R (right) or L (left) to change the aircraft heading at least 10 degrees from the initial reference heading. Note the aircraft maintains the new heading by referencing the MAP OFFSET display. Return the aircraft to the original reference heading by displacing the HDG HOLD ENGA/DISENG trim switch in the appropriate direction. Repeat the check in the opposite direction.

            7. Apply slight pressure (either left or right) to the anti-torque pedals and note that heading hold disengages, the HDG HOLD message deletes from the MFD, and an advisory audio is heard in both headsets.

            8. 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. 4170

      1. PERFORM POWER CYLINDER CHECK
    1. CONDITIONS: In an OH-58D helicopter.

    2. STANDARDS: Appropriate common standards plus the following:


      1. Maintain a 10-foot hover altitude, +5 feet, -2 feet.
    3. DESCRIPTION:


      1. Crew actions.

            1. The MP will perform P* duties during this check and remain focused outside the aircraft during the maneuver. The MP will brief the RCM/NCM on the use of the terms “Cycle”, “Off”, and “Check Complete”, and the emergency procedures to be performed in the event of a hydraulics system failure. The MP will direct the RCM/NCM to assist in clearing the aircraft and with monitoring and acknowledging MFD indications and messages.

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

      2. Procedures. If necessary, land the helicopter to conduct the briefing. Brief the RCM/NCM to identify and hold the HYD SYS switch throughout the check. Brief the RCM/NCM on the commands he should expect to hear and the resultant actions he will perform. Direct the RCM/NCM to confirm during the check that the LOW HYD PRESS message does not display on the MFD. On aircraft without VOX capability, select HOT MIC on both ICS systems. Verify the aircraft maneuver area is clear and that sufficient space is available in the event of hydraulics malfunction.

            1. Establish a stabilized 10-foot hover into the wind.

            2. Check the right servo by smoothly and repeatedly displacing the cyclic at a moderate rate, approximately 3 inches to either side of center, diagonally from the left-rear to right-forward quadrant. During the maneuver, confirm that movement is unrestricted. Repeat the check for the left servo by displacing the cyclic from the right-rear to the left-forward quadrant.

            3. Return the aircraft to a stabilized 3-foot hover. Adjust ICS switches as necessary.

            4. Upon completion of the check, record required data on the MTF check sheet.
    4. SINGLE PILOT CONSIDERATIONS: This check will not be performed without an additional crewmember onboard. Either an additional RCM or a NCM is required to be on board to assist with HYD SYS switch functions. Except for rated aviator duties, the RCM crew actions described above may be accomplished by the NCM at the direction of the MP.

    5. TRAINING AND EVALUATION REQUIREMENTS:


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

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


    1. 4172

      1. PERFORM ENGINE RESPONSE CHECK
    1. CONDITIONS: In an OH-58D helicopter.

    2. STANDARDS: Appropriate common standards plus the following:


      1. Do not exceed 50 feet AGL.
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