Emergency Checklist R44 RII – Heli Academy V1.0 2025-09
Robinson R44 Raven II · Checklist
Overview
This document is an emergency checklist specifically designed for the Robinson R44 Raven II helicopter. It provides pilots with critical information and procedures to follow in various emergency situations, such as engine failure, fire, and loss of tail rotor thrust. The checklist emphasizes the importance of immediate corrective actions and situational awareness to ensure safety during flight operations. It serves as a quick reference guide for pilots to manage emergencies effectively, ensuring they can respond promptly to maintain control of the aircraft and execute safe landings.
- Land immediately if oil pressure is lost to prevent engine damage.
- Maintain a glide speed of 70 KIAS during power failure in flight.
- In case of tail rotor thrust loss, enter autorotation and maintain at least 70 KIAS if possible.
- For engine fires, enter autorotation and manage fuel valves accordingly.
- Monitor electrical systems and be prepared to land if alternator failure occurs.
Document
Source
Originally published by www.heli-academy.ch. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Checklist
- Year
- 2025
- Pages
- 10
- File size
- 318 KB
- Publisher
- www.heli-academy.ch
Common. One of the most common aircraft types we track.
Most owners only have the POH. Here's the essential set for the Robinson R44 Raven II.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Emergency Procedures
The checklist outlines various emergency scenarios, including loss of engine power, oil pressure, and indications of fire in the engine compartment. For each fault condition, it specifies corrective actions, such as landing immediately or as soon as practical, depending on the severity of the issue. The document emphasizes the need for pilots to be prepared for autorotation during emergency landings.
Power Failure in Flight
In the event of a power failure during flight, the checklist instructs pilots to maintain attitude, establish a steady glide at a recommended speed of 70 KIAS, and select a landing spot. It provides specific glide speed and rotor RPM recommendations to ensure a controlled descent.
Loss of Tail Rotor Thrust
The checklist details procedures for handling loss of tail rotor thrust both in flight and hover. It instructs pilots to enter autorotation immediately and maintain a minimum speed of 70 KIAS if practical, selecting a suitable landing site.
Engine Fire Procedures
In case of an engine fire during start or in flight, the checklist outlines critical actions such as entering autorotation, shutting off cabin heat, and managing fuel valves. It emphasizes the importance of quick decision-making to ensure safety.
Electrical Fire and System Failures
The checklist provides procedures for dealing with electrical fires, tachometer failures, and governor malfunctions. It includes actions like turning off electrical switches and monitoring RPM to maintain control of the helicopter.
Safety notes
- Continued operation without oil pressure can lead to serious engine damage.
- Do not attempt air restart below 2000 ft AGL if engine malfunction is suspected.
- Low RPM warning system is inoperative with battery and alternator switches off.
Full document text
Emergency Checkli st Robinson R44 RII – Warning & C aution Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! FAULT CONDITION Indicates loss of engine power or oil pressure. CORRECTIVE ACTION Check engine tach for power loss. Check oil pressure gage and, if pressure loss is confirmed: LAND IMMEDIATELY Continued operation without oil pressure will cause serious engine damage and engine failure may occur. FAULT CONDITION Indicates possible fire in engine compartment. CORRECTIVE ACTION Verify if there is a fire (fly a turn and look for signs like smoke) and, if fire is confirmed: LAND IMMEDIATELY See procedure fire on ground/flight. FAULT CONDITION Indicates excessive temperature of main rotor gearbox. CORRECTIVE ACTION If light is accompanied by any indication of a problem such as noise, vibration, or temperature rise: LAND IMMEDIATELY If there is no other indication of a problem: LAND AS SOON AS PRACTICAL OIL DEFINITIONS LAND IMMEDIATELY - Land on the nearest clear area where a safe normal landing can be performed. Be prepared to enter autorotation during approach, if required. LAND AS SOON AS PRACTICAL - Landing site is at pilot’s discretion based on nature of problem and available landing areas. Flight beyond nearest airport is not recommended. MR TEMP ENG FIRE Information only! Always refer to POH, AFM, RFM! FAULT CONDITION Indicates metallic particles in main rotor gearbox. CORRECTIVE ACTION If light is accompanied by any indication of a problem such as noise, vibration, or temperature rise: LAND IMMEDIATELY If there is no other indication of a problem: LAND AS SOON AS PRACTICAL FAULT CONDITION Indicates metallic particles in tail rotor gearbox. CORRECTIVE ACTION If light is accompanied by any indication of a problem such as noise, vibration, or temperature rise: LAND IMMEDIATELY If there is no other indication of a problem: LAND AS SOON AS PRACTICAL FAULT CONDITION Indicates approximately three gallons of usable fuel remaining. The engine will run out of fuel after ten minutes at cruise power. CORRECTIVE ACTION LAND IMMEDIATELY Caution: Do not use low fuel caution light as a working indication of fuel quantity. FAULT CONDITION Indicates low auxiliary fuel pump pressure. Note: The aux fuel pump is controlled via clutch actuator switch and/or the primer function (igniter key). CORRECTIVE ACTION If no other indication of a problem: LAND AS SOON AS PRACTICAL If light is accompanied by erratic engine operation: LAND IMMEDIATELY LOW FUEL TR CHIP MR CHIP AUX FUEL PUMP Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! FAULT CONDITION Indicates fuel strainer contamination. CORRECTIVE ACTION If no other indication of a problem: LAND AS SOON AS PRACTICAL If light is accompanied by aux fuel pump warning light or erratic engine operation: LAND IMMEDIATELY FAULT CONDITION Indicates clutch actuator circuit is on, either engaging or disengaging clutch. When switch is in the ENGAGE position, light stays on until belts are properly tensioned. Never take off before light goes out. CORRECTIVE ACTION Clutch light may come on momentarily during run-up or during flight to retension belts as they warm-up and stretch slightly. This is normal. If, however, the light flickers or comes on in flight and does not go out within 10 seconds, pull CLUTCH circuit breaker and: LAND AS SOON AS PRACTICAL Reduce power and… LAND IMMEDIATELY ...if there are other indications of drive system failure (be prepared to enter autorotation). Have drive system inspected for a possible malfunction. FAULT CONDITION Indicates low voltage and possible alternator failure. CORRECTIVE ACTION Turn off nonessential electrical equipment and switch ALT off and back on after one second to reset alternator control unit. If light stays on: LAND AS SOON AS PRACTICAL Continued flight without functioning alternator can result in loss of power to tachometers, producing a hazardous flight condition. ALT CLUTCH FUEL FILTER Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! FAULT CONDITION Indicates starter motor is engaged. CORRECTIVE ACTION If light does not go out when ignition switch is released from start position IMMEDIATELY PULL MIXTURE OFF and turn battery switch off. Have starter motor serviced. FAULT CONDITION Indicates rotor speed below 97% RPM. CORRECTIVE ACTION To restore RPM IMMEDIATELY LOWER COLLECTIVE roll throttle on and, in forward flight, apply aft cyclic. NOTE: Light is disabled when collective is full down. FAULT CONDITION Indicates engine RPM governor is switched off. Note: GOV OFF light does not indicate a governor malfunction. CORRECTIVE ACTION If wanted, switch GOV back on. FAULT CONDITION Indicates rotor brake is engaged. CORRECTIVE ACTION Release IMMEDIATELY in flight or before starting engine. FAULT CONDITION Indicates elevated levels of carbon monoxide (CO) in cabin. CORRECTIVE ACTION Shut off heater and open nose and door vents. If hovering, land or transition to forward flight. If symptoms of CO poisoning (headache, drowsiness, dizziness) accompany light: LAND IMMEDIATELY CARBON MONOXIDE GOV OFF BREAK STARTER ON LOW RPM Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Emergency Checkli st Robinson R44 RII - Proc edures Information only! Always refer to POH, AFM, RFM! PROBLEM POWER FAILURE IN FLIGHT A power failure may be caused by either an engine or drive system failure. INDICATION ACTION 1. Collective down, maintain attitude (aft cyclic, right pedal) 2. Establish steady glide • Rec. Glide Speed: 70 KIAS | RPM 97 – 110 % • Min. ROD: 55 KIAS | RPM 97 – 110 % • Max. Glide: 90 KIAS | RPM 90 % 3. Select landing spot 4. If unable to restart, turn unnecessary switches and fuel valve off. 5. At about 40 feet AGL, begin cyclic flare to reduce rate of descent and forward speed. 6. At about 8 feet AGL, apply forward cyclic to level ship
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and raise collective just before touchdown to cushion landing. Touch down in level attitude with nose straight ahead. 8 – 500 ft AGL Straight in landing 500 – 1000 ft AGL Select landing spot, if possible into wind > 2000 ft AGL After established Autorotation, air restart maybe attempted PROBLEM POWER FAILURE IN HOVER A power failure may be caused by either an engine or drive system failure. INDICATION Same as Power Failure in Flight. ACTION 1. Apply right pedal as required to prevent yawing. 2. Allow aircraft to settle. 3. Raise collective just before touchdown to cushion landing. TASK AIR RESTART PROCEDURE CAUTION: Do not attempt restart if engine malfunction is suspected or before safe autorotation is established. ACTION 1. Mixture - Off. 2. Throttle - Closed. 3. Starter - Engage. 4. Mixture - Move slowly rich while cranking. Caution: Air restarts not recommended below 2000 ft AGL. LOW RPM LOW RPM NOISE & VIBRATION OIL PRESSURE ENG RPM OIL P LIGHT ALT LIGHT YAW Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! PROBLEM LOSS OF TAIL ROTOR THRUST IN FORWARD FLIGHT Mechanical error, bird or object strike, material fatigue. INDICATION Failure is usually indicated by nose right yaw which cannot be corrected by applying left pedal. ACTION 1. Immediately enter autorotation. 2. Maintain at least 70 KIAS if practical. 3. Select landing site, roll throttle off into overtravel spring, and perform autorotation landing. Note: When a suitable landing site is not available, the vertical stabilizers may permit limited controlled flight at low power settings and airspeeds above 70 KIAS; however, prior to reducing airspeed, enter full autorotation. PROBLEM LOSS OF TAIL ROTOR THRUST IN HOVER Mechanical error, bird or object strike, material fatigue. INDICATION Failure is usually indicated by nose right yaw which cannot be corrected by applying left pedal. ACTION 1. Immediately roll throttle off into overtravel spring and allow aircraft to settle. 2. Raise collective just before touchdown to cushion landing. PROBLEM HEADSET AUDIO FAILURE ACTION If headset audio fails, land as soon as practical. Note: For aircraft which provide low RPM horn through the audio system, pilot will not hear horn with a failed headset. RIGHT YAW LEFT PEDAL HAS NO EFFECT RIGHT YAW LEFT PEDAL HAS NO EFFECT x x x Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! PROBLEM ENGINE FIRE DURING START ON GROUND INDICATION • Visible Fire • Smell of smoke • Visible Smoke • Abnormal Indications ACTION 1. Cranking – Continue and attempt to start which would suck flames and excess fuel into engine. 2. If engine starts, run at 60-70% RPM for a short time. 3. Fuel mixture – OFF. 4. Fuel valve – OFF. 5. Battery switch – OFF. 6. If time permits, apply rotor brake to stop rotors. 7. Exit helicopter. PROBLEM ENGINE FIRE IN FLIGHT INDICATION • Visible Fire • Smell of smoke • Visible Smoke • Abnormal Indications ACTION 1. Enter autorotation. 2. Cabin heat – OFF (if installed and time permits). 3. Cabin vent – ON (if time permits). 4. Landing ▪ If engine is running, perform normal landing, then fuel mixture OFF and fuel valve OFF. ▪ If engine stops running, fuel valve OFF and complete autorotation landing. 5. Battery switch – OFF. 6. If time permits, apply rotor brake to stop rotors. 7. Exit helicopter. PROBLEM ELECTRICAL FIRE IN FLIGHT INDICATION • Visible Fire • Smell of smoke • Visible Smoke • Abnormal Indications ACTION 1. Battery and alternator switches – OFF. 2. Open cabin vents. 3. Land immediately. 4. Fuel mixture OFF and fuel valve OFF. 5. If time permits, apply rotor brake to stop rotors. 6. Exit helicopter. Caution: Low RPM warning system and governor are inoperative with battery and alternator switches both off. Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! PROBLEM TACHOMETER FAILURE INDICATION • No Tacho readout • Unusual indication ACTION If rotor or engine tach malfunctions in flight, use remaining tach to monitor RPM. If it is not clear which tach is malfunctioning or if both tachs malfunction, allow governor to control RPM and land as soon as practical. Note: Each tach, the governor, and the low RPM horn are on separate power circuits. A special circuit allows the battery to supply power to the tachs with the battery and alternator switches both off. PROBLEM GOVERNOR FAILURE INDICATION • High/Low RPM • Erratic throttle movement ACTION If engine RPM governor malfunctions, grip throttle firmly to override the governor, then switch governor off. Complete flight using manual throttle control. Note: Monitor governor operation during flight by keeping hand lightly on throttle twist grip. If twist grip rotation becomes erratic or stops altogether, governor may be malfunctioning. If twist grip rotates steadily open or closed, override promptly to prevent RPM excursion. The “GOV OFF” light does not indicate governor failure. It only indicates that the governor is switched off. PROBLEM TAIL ROTOR CONTOL PROB- LEM IN FLIGHT (STUCK PEDAL) Pedal blockage, mechanical failure INDICATION Left or right yaw which can’t be corrected by applying opposite pedal input. ACTION 1. Stabilize flight with appropriate power setting and speed (around 70 kts) 2. If possible, get safe distance to ground (ca. 1000 ft AGL) 3. Verify problem with different power settings 4. Verify minimum safe speed to control yaw with tail fin 5. Select suitable landing spot, if possible hard surface 6. Perform running landing ROTOR TACH FAIL ENGINE TACH FAIL DUAL TACH FAIL LOW, HIGH ERRATIC RPM TWIST GRIP ROTATION ERRATIC OR STOPPED YAW YAW Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! PROBLEM HYDRAULIC SYSTEM FAILURE INDICATION Hydraulic system failure is indicated by heavy or stiff cyclic and collective controls. Loss of hydraulic fluid may cause intermittent and/or vibrating feedback in the controls. Control will be normal except for the increase in stick forces. ACTION 1. HYD Switch – verify ON. 2. If hydraulics not restored, HYD Switch – OFF. 3. Adjust airspeed and flight condition as desired for comfortable control. 4. Land as soon as practical. PROBLEM RIGHT ROLL IN LOW “G” CONDITION ACTION Gradually apply aft cyclic to restore positive “G” forces and main rotor thrust. Do not apply lateral cyclic until positive “G” forces have been established. PROBLEM UNCOMMANDED PITCH, ROLL OR YAW RESULTING FROM FLIGHT IN TURBULENCE. ACTION Gradually apply controls to maintain rotor RPM, positive “G” forces, and to eliminate sideslip. Minimize cyclic control inputs in turbulence; do not overcontrol. PROBLEM INADVERTENT ENCOUNTER WITH MODERATE, SEVERE, OR EXTREME TURBULENCE. ACTION If the area of turbulence is isolated, depart the area; otherwise, land the helicopter as soon as practical. INFORMATION PER FAA AD 95-26-04 Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW Information only! Always refer to POH, AFM, RFM! PROBLEM TAIL ROTOR CONTOL PROB- LEM IN HOVER (STUCK PEDAL) Pedal blockage, mechanical failure INDICATION Left or right yaw which can’t be corrected by applying opposite pedal input. ACTION RIGHT YAW 1. Immediately roll throttle off into overtravel spring and allow aircraft to settle. 2. Raise collective just before touchdown to cushion landing. LEFT YAW 1. Counteract yaw by increasing torque (raise collective) 2. Settle the aircraft using inertia PROBLEM EMERGENCY WATER LANDING INDICATION Same as Power Failure in Flight. ACTION POWER OFF 1. Follow same procedures as for power failure over land until contacting water. If time permits, unlatch doors prior to water contact. 2. Apply lateral cyclic when aircraft contacts water to stop rotors. 3. Release seat belt and quickly clear aircraft when rotors stop. POWER ON 1. Descend to hover above water. 2. Unlatch doors. 3. Passenger exit aircraft. 4. Fly to safe distance from passenger to avoid possible injury by rotors. 5. Switch battery and alternator OFF. 6. Roll throttle off into overtravel spring. 7. Keep aircraft level and apply full collective as aircraft contacts water. 8. Apply lateral cyclic to stop rotors. 9. Release seat belt and quickly clear aircraft when rotors stop. YAW YAW Emergency Checklist R44 RII – Heli Academy V1.0 2025-09 | SW
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