MSFS 2024 · Rotary

Airbus H125 Emergency Procedures

Airbus H125 Emergency Procedures - Full Reference

All 12 procedures with immediate action steps, in full.

Autorotation Landing Following Engine Failure (Section 3.1 para 2.1)

Immediate actions · 12 steps

  1. 1
    Collective pitchSET LOW
  2. 2
    NRMAINTAIN in the upper part of the green band
  3. 3
    AirspeedESTABLISH approximately 65 kt (120 km/h)
  4. 4
    OFF/IDLE/FLIGHT selectorOFF
  5. 5
    Re-light the engine if the cause permits; otherwise close the fuel shut-off valve and switch off the generator and alternator
  6. 6
    Electrical power master ALL-OFF switchOFF if there is a smell of burning
  7. 7
    Manoeuvre to head the helicopter into wind on final approach
  8. 8
    At approximately 65 ft (20 m)FLARE to a nose-up attitude
  9. 9
    At 20 to 25 ft (6 to 8 m) at constant attitudegradually apply collective pitch to reduce the sink rate
  10. 10
    Resume level attitude before touch-down and cancel any side-slip tendency
  11. 11
    Gently reduce collective pitch after touch-down
  12. 12
    Notethe tail skid may touch the ground first; the rate of descent at 65 kt is 1,800 ft/min

Engine Failure in Hover IGE (Section 3.1 para 2.2)

Immediate actions · 4 steps

  1. 1
    Collective pitchDO NOT REDUCE
  2. 2
    YawCONTROL
  3. 3
    Cushion touch-down by increasing collective pitch
  4. 4
    Reduce collective pitch as soon as the aircraft is on the ground

Engine Failure in Hover OGE (Section 3.1 para 2.3)

Immediate actions · 3 steps

  1. 1
    Collective pitchREDUCE
  2. 2
    CyclicAPPLY FORWARD to gain airspeed according to available height
  3. 3
    Terminate in accordance with the autorotation landing procedure (Section 3.1 para 2.1)

Engine Flame-Out in Flight (Section 3.1 para 3.1)

Immediate actions · 6 steps

  1. 1
    Carry out the autorotation transition procedure (Section 3.1 para 2)
  2. 2
    Symptomsjerk in the yaw axis (only in high-power flight)
  3. 3
    Symptomsdrop in rotor speed, aural warning sounds below 360 rpm
  4. 4
    Symptomstorque at zero and Ng falling off to zero
  5. 5
    Symptomsgenerator warning light illuminates
  6. 6
    Symptomsengine oil pressure drop warning light illuminates

Relighting the Engine in Flight (Section 3.1 para 3.2)

Immediate actions · 10 steps

  1. 1
    Booster pumpsON
  2. 2
    Wait until Ng falls below 5 percent, then carry out the starting procedure
  3. 3
    GOV warning lights (red and amber)OUT
  4. 4
    Starting selectorON
  5. 5
    Check Ng increases, t4 remains below its limit, and engine oil pressure increases
  6. 6
    P.MOT (ENG.P) lightshould be out at 70 percent Ng
  7. 7
    Starter switch guardLOWER; check the GEN light is off
  8. 8
    Booster pumpOFF; PUMP and FUEL P captions extinguished
  9. 9
    Notethe normal relighting ceiling is 20,000 ft, but relighting may be attempted throughout the altitude envelope
  10. 10
    Noteif the starting cycle has to be aborted, return the start switch to the closed position and switch off the fuel pump

Engine Fire in Flight (Section 3.1 para 4.2)

Immediate actions · 4 steps

  1. 1
    Enter autorotation (Section 3.1 para 2.1)
  2. 2
    Fuel shut-off cockCLOSE to shut down the engine
  3. 3
    Generator and alternator (if installed)SWITCH OFF
  4. 4
    Electrical master ALL OFF switchOFF if there is a smell of burning

Fire During Engine Start (Section 3.1 para 4.1)

Immediate actions · 4 steps

  1. 1
    Fuel shut-off cockCLOSE, and apply the rotor brake if necessary
  2. 2
    Booster pumpSWITCH OFF
  3. 3
    Crank the engine for 10 seconds, then switch off the battery
  4. 4
    Use the nearby extinguishers to fight the fire

Tail Rotor Drive Failure in Hover or at Low Speed (Section 3.1 para 6.1.1)

Immediate actions · 3 steps

  1. 1
    IGEset the twist grip to the idling detent and cushion touch-down by pulling the collective pitch lever
  2. 2
    OGEreduce collective pitch moderately to reduce yaw torque, and simultaneously start to pick up speed
  3. 3
    Noteloss of the tail rotor in power-on flight results in a yaw movement to the left; the extent depends on the power and speed configuration at the time of failure

Tail Rotor Drive Failure in Forward Flight (Section 3.1 para 6.1.2)

Immediate actions · 4 steps

  1. 1
    PowerREDUCE as much as possible and maintain forward speed for weathercock effect
  2. 2
    Select a suitable landing area for a steep approach at a power enabling reasonably coordinated flight
  3. 3
    On final approachSHUT DOWN THE ENGINE
  4. 4
    Make an autorotative landing at the lowest possible speed

Hydraulic / Servo-Control System Failure - HYDR Light (Section 3.3)

Immediate actions · 8 steps

  1. 1
    In flightcalmly reduce collective pitch and adjust airspeed to between 40 and 60 kt (74 to 111 km/h) in level flight
  2. 2
    Hydraulic pressureCUT OFF using the collective lever switch
  3. 3
    Expect control loads on collective pitch increase and on forward and left-hand cyclic
  4. 4
    If necessary increase IAS, but control load feedback will also increase, especially on the collective pitch
  5. 5
    Be careful not to inadvertently move the twist grip out of the Flight detent as collective load increases
  6. 6
    Make a flat approach over a clear landing area and land with slight forward speed
  7. 7
    Shut down the engine holding the collective pitch lever on the low pitch stop
  8. 8
    Do NOT press the HYD TEST push-buttonthis would immediately depressurize the accumulator and the resulting control loads could be heavy

Main Servo-Control Slide-Valve Seizure (Section 3.2 para 5.2)

Immediate actions · 4 steps

  1. 1
    Hydraulic pressureCUT OFF using the switch on the collective pitch control lever
  2. 2
    Expect immediate load feedback, heavy at high speed: about 20 kgf collective pitch increase load, 7 to 12 kgf left-hand cyclic, 2 to 4 kgf forward cyclic, practically no load on yaw pedals in cruising flight
  3. 3
    SpeedREDUCE to 60 kt (111 km/h)
  4. 4
    Proceed as in the case of illumination of the HYD light

Smoke in the Cabin (Section 3.1 para 5)

Immediate actions · 8 steps

  1. 1
    If the source is identifiedshut off the corresponding system
  2. 2
    If necessary use the fire extinguisher
  3. 3
    Air the cabin by opening the front ventilator, the ventilation ports and the bad weather windows
  4. 4
    If the source is not identifiedshut off the heating/demisting system
  5. 5
    If the smoke does not clearswitch off the electrical master switch (ALL OFF)
  6. 6
    When the smell of smoke has cleared, set all switches OFF including generator and alternator, and close the cabin ventilators
  7. 7
    Reset the ALL OFF electrical master switch to the normal position, switch on the generator and check voltage and current
  8. 8
    If everything is normal, switch on the circuits one by one until the malfunction is identified