Emergency Checklist R66 – Heli Academy V1.0 2025-09

ten seconds, then turn igniter switch OFF to stop starter. Note: 01/2023 HB-ZWH is not equipped with this system. ROTOR BRAKE HYD ANTI ICE Emergency Checklist R66 – Heli Academy V1.0 2025-09 | SW Emergency Checkli st Robinson R66 - 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 95 – 106 % • Min. ROD: 60 KIAS | RPM 90 % • Max. Glide: 90 KIAS | RPM 90 % 3. Select landing spot and 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 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. 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. Caution: Air restarts not recommended below 2000 ft AGL. ACTION An immediate restart may be attempted by pressing the start button if N1 is above 20% (within approximately 10 seconds of power loss). It is not necessary to close throttle or pull fuel cutoff for immediate restart. If N1 has decayed to 20% or below, use the following procedure: 1. Fuel cutoff - Pull OFF 2. Throttle - Closed. 3. Start button - Push and release. 4. N1 15% or above - push fuel cutoff ON. 5. After peak MGT- throttle full open. LOW RPM NOISE & VIBRATION OIL PRESSURE DECRASIN G RPM N1 or N2 DECREASING ROTOR RPM OIL P LIGHT GEN LIGHT YAW LOW RPM Emergency Checklist R66 – 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 R66 – 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/Smoke • Smell of smoke • Abnormal Indications • Excessive MGT • Engine Fire Warning Light ACTION 1. Fuel cutoff – Pull OFF. 2. Start button – Push and release. 3. Fuel valve knob – Pull OFF. 4. Battery switch – OFF when MGT decreases to 150 °C or if fire worsens. 5. If time permits, apply rotor brake to stop rotors. 6. Exit helicopter. PROBLEM ENGINE FIRE IN FLIGHT INDICATION • Visible Fire/Smoke • Smell of smoke • Abnormal Indications • Excessive MGT • Engine Fire Warning Light ACTION 1. Immediately enter autorotation. 2. Cabin heat – OFF (if time permits). 3. Landing ▪ If engine is running, land immediately, then pull fuel cutoff OFF and pull fuel valve knob OFF. ▪ If engine stops running, pull fuel cutoff OFF, pull fuel valve knob OFF, and complete autorotation landing. 4. If time permits, apply rotor brake to stop rotors. 5. Exit helicopter. PROBLEM ELECTRICAL FIRE IN FLIGHT INDICATION • Visible Fire • Smell of smoke • Visible Smoke • Abnormal Indications ACTION 1. Battery and generator switches – OFF. 2. Open cabin vents. 3. Land immediately. 4. Pull fuel cutoff OFF and pull fuel valve knob OFF. 5. If time permits, apply rotor brake to stop rotors. 6. Exit helicopter. Caution: Low RPM warning system is inoperative with battery and generator switches both off. Emergency Checklist R66 – 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 N2 tachometer malfunctions in flight, use remaining tach to monitor RPM. If it is not clear which tach is malfunctioning or if both tachs malfunction allow power turbine governor to control RPM and land as soon as practical. Note: The rotor tach, N2 tach, and low RPM warning horn are each on separate circuits. A special circuit allows the battery to supply power to the tachs with the battery and generator switches both OFF. PROBLEM POWER TURBINE GOVERNOR FAILURE INDICATION • Rise or Fall N2 RPM ACTION If N2 overspeeds, attempt to control RPM with throttle. If N2 underspeeds, verify throttle is full open and reduce collective to control RPM. If governor failure is suspected, land as soon as practical. If manual RPM control is not possible, lower collective, close throttle, and complete autorotation landing per power failure procedures. 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 YAW YAW Emergency Checklist R66 – 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. A run-on landing is recommended if a suitable landing surface is available. 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 R66 – 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 R66 – Heli Academy V1.0 2025-09 | SW