MSFS 2024 · Airliner

PMDG 737-800 Emergency Procedures

PMDG 737-800 Emergency Procedures - Full Reference

All 12 procedures with immediate action steps, in full.

Cabin Altitude Warning or Rapid Depressurization

Immediate actions · 7 steps

  1. 1
    Oxygen MasksDON AND SET REGULATORS TO 100%
  2. 2
    Crew CommunicationsESTABLISH
  3. 3
    Pressurization Mode SelectorMAN
  4. 4
    Outflow VALVE SwitchHOLD IN CLOSE UNTIL THE OUTFLOW VALVE INDICATION SHOWS FULLY CLOSED
  5. 5
    If cabin altitude is uncontrollable: Passenger SignsON, PASS OXYGEN Switch - ON, then go to the Emergency Descent checklist
  6. 6
    If cabin altitude is controllable: continue manual operation; oxygen masks may be removed at or below 10,000 ft cabin altitude
  7. 7
    Then go to QRH Ch. 2

Emergency Descent

Immediate actions · 9 steps

  1. 1
    Flight Attendants and ATCADVISE OF THE EMERGENCY DESCENT
  2. 2
    Passenger SignsON
  3. 3
    Without delay, descend to the lowest safe altitude or 10,000 ft, whichever is higher
  4. 4
    ENGINE START Switches (both)CONT
  5. 5
    Thrust Levers (both)REDUCE THRUST TO MINIMUM OR AS NEEDED FOR ANTI-ICE
  6. 6
    SpeedbrakeFLIGHT DETENT
  7. 7
    Target SpeedMMO/VMO (limit speed if structural integrity is in doubt)
  8. 8
    When approaching level off: lower the SPEED BRAKE lever to DOWN, add thrust and stabilize
  9. 9
    Crew Oxygen RegulatorsNORMAL (crew must use oxygen above 10,000 ft cabin altitude)

Runaway Stabilizer

Immediate actions · 8 steps

  1. 1
    Control ColumnHOLD FIRMLY
  2. 2
    Autopilot (if engaged)DISENGAGE (do not re-engage)
  3. 3
    Autothrottle (if engaged)DISENGAGE (do not re-engage)
  4. 4
    Control aircraft pitch attitude manually with control column and main electric trim as needed
  5. 5
    If the runaway continues after the autopilot is disengaged: STAB TRIM CUTOUT switches (both)CUTOUT
  6. 6
    If the runaway continues: Stabilizer Trim WheelGRASP AND HOLD
  7. 7
    StabilizerTRIM MANUALLY, anticipate trim requirements
  8. 8
    Then go to QRH Ch. 9

Airspeed Unreliable

Immediate actions · 6 steps

  1. 1
    Autopilot (if engaged)DISENGAGE
  2. 2
    Autothrottle (if engaged)DISENGAGE
  3. 3
    F/D Switches (both)OFF
  4. 4
    Flaps Extended10 DEG AND 80% N1 (gear up)
  5. 5
    Flaps Up4 DEG AND 75% N1 (gear up)
  6. 6
    Then go to QRH Ch. 10

Engine Fire or Engine Severe Damage or Separation

Immediate actions · 7 steps

  1. 1
    Autothrottle (if engaged)DISENGAGE
  2. 2
    Thrust Lever (affected engine)CONFIRM, CLOSE
  3. 3
    Engine Start Lever (affected engine)CONFIRM, CUTOFF
  4. 4
    Engine Fire Switch (affected engine)CONFIRM, PULL (press the override and pull to unlock manually)
  5. 5
    If the engine fire switch or ENG OVERHEAT light is illuminated: Engine Fire SwitchROTATE TO THE STOP AND HOLD FOR 1 SECOND
  6. 6
    If after 30 sec the switch or ENG OVERHEAT light stays illuminated: Engine Fire SwitchROTATE TO THE OTHER STOP AND HOLD FOR 1 SECOND
  7. 7
    Then go to QRH Ch. 8

Engine Overheat

Immediate actions · 5 steps

  1. 1
    Autothrottle (if engaged)DISENGAGE
  2. 2
    Thrust Lever (affected engine)CONFIRM, CLOSE
  3. 3
    If the ENG OVERHEAT light stays illuminatedGO TO THE ENGINE FIRE OR ENGINE SEVERE DAMAGE OR SEPARATION CHECKLIST
  4. 4
    If the ENG OVERHEAT light extinguishesRUN THE ENGINE AT REDUCED THRUST TO KEEP THE LIGHT EXTINGUISHED
  5. 5
    Then go to QRH Ch. 8

Loss of Thrust on Both Engines

Immediate actions · 6 steps

  1. 1
    ENGINE START Switches (both)FLT
  2. 2
    Engine Start Levers (both)CUTOFF
  3. 3
    When EGT decreases: Engine Start Levers (both)IDLE DETENT
  4. 4
    If EGT reaches a redline or there is no increase in EGT within 30 sec: Start Lever (affected engine)CONFIRM, CUTOFF, THEN IDLE DETENT
  5. 5
    Note: if the aircraft reverts to standby power there are no MMO/VMO protections
  6. 6
    Then go to QRH Ch. 7

Engine Limit or Surge or Stall

Immediate actions · 3 steps

  1. 1
    Autothrottle (if engaged)DISENGAGE
  2. 2
    Thrust Lever (affected engine)CONFIRM, RETARD UNTIL ENGINE INDICATIONS STAY WITHIN LIMITS OR THE THRUST LEVER IS CLOSED
  3. 3
    Then go to QRH Ch. 7

APU Fire

Immediate actions · 3 steps

  1. 1
    APU Fire SwitchCONFIRM, PULL, ROTATE TO THE STOP AND HOLD FOR 1 SECOND
  2. 2
    APU SwitchOFF
  3. 3
    Then go to QRH Ch. 8

Aborted Engine Start

Immediate actions · 2 steps

  1. 1
    Engine Start Lever (affected engine)CUTOFF
  2. 2
    Then go to QRH Ch. 7

Smoke, Fire or Fumes

Immediate actions · 4 steps

  1. 1
    A diversion may be needed
  2. 2
    Oxygen MasksDON AND SET REGULATORS TO 100%
  3. 3
    Smoke GogglesDON AS NEEDED
  4. 4
    Then go to QRH Ch. 8

Warning Horn or Warning Light - Cabin Altitude or Takeoff Configuration

Immediate actions · 4 steps

  1. 1
    In flight above 10,000 ft with the intermittent horn or a CABIN ALTITUDE light: Oxygen MasksDON, REGULATORS 100%
  2. 2
    Crew CommunicationsESTABLISH
  3. 3
    Go to the CABIN ALTITUDE WARNING or Rapid Depressurization checklist
  4. 4
    On the ground with the intermittent horn or a TAKEOFF CONFIG light when advancing the thrust levers to takeoff thrust: ENSURE CORRECT AIRCRAFT TAKEOFF CONFIGURATION