Engine Failure in Flight
1. Autorotate
2. Shoulder harness - Lock
If time and altitude permit:
3. Mayday - transmit
4. Transponder - Emergency
5. Engine Restart in Flight Procedure - as required
Engine Failure at High Airspeed and Low Altitude
1. Cyclic - immediately apply aft
2. Autorotate
Overtorque
If overtorque exceeding 120%:
1. land as soon as possible
If overtorque less than 120%:
2. Land as soon as practicable.
Overtemp
1. Land as soon as possible
Overspeed
1. Land as soon as possible
Compressor Stall
1. Collective-lower
2. ENG Anti-ice switch - on
3. Cabin Heat Valve - ON
4. Check power available
If power is insufficient to maintain level flight:
5. Autorotate
6. Twist grip - flight idle
If power is sufficient to maintain level flight:
7. Land as soon
Underspeeding Nf/Nr
1. Collective - lower as required to maintain a minimum of 90% Nr
2. Twist grip - Full open
3. GOV RPM - Full increase
If underspeed persists:
4. Check power available
If power is not sufficient:
5. Autorotate
If sufficient power is available:
6. Land as
Engine Overspeed (Nf) Rotor RPM (Nr)
1. Twist Grip - Reduce (to maintain Nf/Nr in operating range).
2. Collective/twist grip - coordinate
3. land as soon as possible
Fuel Control Failure
1. Collective - adjust as required to maintain Nr in operating range
2. twist grip - adjust as required to maintain Nf in operating range
3. land as soon as possible
Engine Restart in Flight
1. Ng - note
If Ng is below 12 percent:
2. twist grip - Close
3. Starter - ON
4. at 12 percent Ng, Twist grip - Full Open
If Ng is 12 percent or above:
5. Starer - ON
6. at 58 percent Ng, starter - OFF
If light-off occurs:
7. Land as soon as possible
Main Drive Shaft Failure
1. autorotate
2. twist grip - adjust, if necessary, to maintain Nf in operating range
When on deck:
3. Emergency Shutdown - complete
Engine Chip
1. Check for secondary indications
If secondary indications exist:
2. Land as soon as possible
If no secondary indications exist, proceed as follows:
First Chip Light:
3. Press CLEAR CHIP
If ENG CHIP remains:
4. Land as soon as possible
If ENG CHIP exting
Abort Start
1. Twist grip - Close
2. Starter - OFF after TOT stabilizes at 400C or below
Mast Bumping
If mast bumping is suspected:
1. Establish positive G Load and/or balanced flight (as required)
2. Land immediately
Transmission Malfunction
If failure is imminent:
1. land immediately
2. shoulder harness - Lock
If failure is not imminent:
3. Land as soon as possible
Transmission Chip
First TRANS CHIP caution light:
1. check for secondary indications
If secondary indications exist:
2. Transmission Malfunction Procedure - Perform
If no secondary indications exists:
3. Press CLEAR CHIP
If TRANS CHIP caution light remains illuminated:
4.
Sprag Clutch Slippage
1. Autorotate
2. twist grip - FLT IDLE
If time and altitude permit:
3. Twist grip - smoothly rotate to full open
If Nf/Nr are married:
4. Collective - increase
If sprag clutch continues to slip:
5. Autorotate
6. Twist grip - closed
If the sprag clutch ree
Sprag Clutch Seizure
1. Ensure twist grip is full open
2. land as soon as possible
Complete Loss of Tail Rotor Thrust
In a hover:
1. Twist grip - Flight Idle
2. Cyclic - eliminate drift
3. Collective - increase to cushion landing
Transition to forward flight or hover/air taxi:
1. Twist grip - flight idle
2. cyclic - eliminate sideward drift
3. Collective - increase to cu
Tail Rotor Chip Caution
1. Land as soon as possible
Fixed Pitch in a Hover
Right yaw:
If rate of rotation is not excessive and landing surface is smooth and firm:
1. collective - decrease to effect a power-on landing
If rate of rotation is excessive or landing surface is unsuitable for a power-on landing:
2. Twist grip - reduce
Loss of Tail Rotor Effectiveness
1. Pedals - full left
2. collective - lower (as alt permits)
3. airspeed - increase
If spin cannot be stopped:
4. Autorotate
High Frequency Vibration
1. ECS - OFF
If vibrations cont:
2. Land as soon as possible
If vibrations cease:
3. Land as soon as practicable
Hydraulic Power Cylinder Malfunction
1. HYDRAULIC BOOST switch - OFF
2. Helicopter - regain control
3. Airspeed - adjust (to obtain most comfortable control movement level)
4. Land as soon as possible
Battery Hot
1. BAT switch - OFF
2. Land as soon as possible
Battery Temp Caution
1. BAT switch - off
2. Flight may be continued
Spare Caution
1. Check for other indications
2. land as soon as possible
Fuel Boost Pump Failure
1. Descent - initiate if above 6,000 feet PA and flight permits
2. Fuel Pressure and quantity - note
If both fuel boost pumps have failed (fuel pressure at 0):
3. Land as soon as possible
If only on boost pump has failed (fuel pressure 4 to 30 psi):
4. La
Airframe Fuel Filter Caution
1. Land as soon as possible
Suspected Fuel Leakage
1. Land as soon as possible
If time and altitude permit:
2. Transmit position and intentions
3. unnecessary electrical equipment - secure
When on deck:
4. Emergency Shutdown - completed
Engine Fire in Flight
1. Confirm existence of fire
If fire exists:
2. Land Immediately
3. Emergency shutdown - Complete
If fire not confirmed:
4. Land as soon as possible
5. Emergency Shutdown - complete after landing
Fuselage Fire
1. Land immediately
2. Emergency Shutdown - Complete
Electrical Fire - Unknown Origin
1. BAT switch - OFF
2. (C) STBY GEN switch - OFF
3. (C) If in VMC, STBY ATT IND switch - OFF
4. MAIN GEN swtich - OFF
If Fire Persists:
5. Land Immediately
6. Emergency shutdown - complete
If fire extinguishes:
7. Land as soon as possible
(then pull out P
Electrical Fire - Known Origin
1. Affected equipment - secure
2. affected circuit breakers - pull
If Fire persists:
3. Electrical fire - Unknown Origin Procedure - Execute
If Fire extinguishes:
4. Land as soon as practicable
Smoke and Fume Elimination
1. ECS and DEFOG blower - OFF
2. Vents/windows - Open
If fire persists:
3. Slip or skid aircraft to eliminate smoke and fumes
If source of the smoke and/or fumes cannot be identified:
4. Land as soon as possible
Post Shutdown Fire (internal)
1. Starter - Engage
2. Fuel valve - OFF
3. Ingniter circuit breaker - Pull
4. Starter - secure after fire is extinguished
Immediate Landing/Ditching
1. Crew and Passengers - Alert
2. Harness - Lock
3. Mayday - Transmit
4. Transponder - Emergency
5. Doors - Open/Jettison - as required
After landing:
6. Emergency Engine Shutdown - Execute
If water landing:
7. Underwater egress - execute
Underwater Egress
1. SEBD - Don, as required
2. Communication cords - disconnect
3. Doors - open/jettison
4. Place hand on known reference point
Once all violent motion has stopped:
5. Shoulder harness/lapbelt - release
6. Exit helicopter
After egress:
7. swim clear and in
Emergency Shutdown
1. Twist grip - close
2. Fuel valve - OFF
3. BAT switch - OFF
4. (C) STBY ATT IND switch - OFF
5. (C) Rotor Brake - Engage immediately
6. Helicopter - Egress, as required, Use fire bottle or get clear of the aircraft as applicable
Icing
1. ENG ANTI-ICING - ON
2. PITOT HEAT switches - HEAT
3. (C) Alternate static source knob - As required.
4. Descend or climb to a warmer temperature or vacate clouds/moisture.
If unable to get clear of icing conditions:
5. Land as soon as possible
Torquemeter Wet Line Rupture
1. Monitor engine oil instruments
2. Land as soon as possible
Engine or Transmission Oil Pressures
1. Land as soon as possible
Engine or Transmission Oil Temperature Malfunction
If either oil termperature gauge indicator exceeds red lin limitations:
1. Land as soon as possible
If either oil termperature gauge fluctuates or falls to zero:
2. Land as soon as practicable
Pitot-Static Instruments
1. PITOT HEAT switch(es) - HEAT
If pitot heat does not remedy the situation, accomplish the following:
2. (C) Alternate static source knob - Pull
If icing conditions are present:
3. Icing procedures - Execute
If icing conditions are not present:
4. Land a
Rotor Blade Stall
1. Severity of manuever - Decrease
2. Collective - Lower
3. Airspeed - Decrease
4. Altitude - descend, if flight permits
5. Rotor RPM - increase
Vortex Ring State
1. Controls - as required to clear vortex ring state
If impact is imminent:
2. Level skids to conform to terrain
Power Required Exceeds Power Available
1. Collective - Lower as required to maintain a minimum of 90% Nr
2. Twist grip - full open
3. Angle of bank - level wings
4. Airspeed - 50 KIAS (minimum power required airspeed)
5. Jettison - As required
If impact is imminent:
6. Level skids to conform t
Dynamic Rollover
1. Collective - lower to stop the roll
2. Cyclic - neutral
Uncommanded Right Roll During Flight Below 1g
1. Cyclic - Immediately apply aft to establish positive g load on rotor, then center laterally
When main rotor returns to positive thrust condition:
2. Controls - as required to regain balance flight
If mast bumping has occurred:
3. Land immediately
Emergency Descent
1. Collective - Lower (to minimum pitch)
2. AIrspeed - 130 KIAS (122 KIAS maximum with FCS on)
Land immediately
Execute a landing without delay
Land as soon as possible
Land at the first site at which a safe landing can be made
Land as soon as practicable
Extended flight is not recommended. The landing site and duration of flight is at the discretion of the pilot in command.
Mast Bumping: Start/shutdown
1. cyclic - move to stop bumping
2. emergency shutdown procedures - complete
Mast Bumping: during high-speed sideward or rearward flight
1. cyclic - immediately apply smoothly toward center
2. pedals - immediately apply as required to align the nose with the direction of travel
Mast Bumping: during engine failure at high forward airspeed
1. Cyclic � Move aft to maintain positive g (thrust).
2. Collective � As required to maintain Nr.
3. Autorotation � Continue.
Mast Bumping: During low g maneuvers (below + 0.5g, other than
nose high)
1. Cyclic � Aft, then center laterally to regain positive g
(thrust) on the rotor and maintain Nr.
2. Land immediately.
Mast Bumping: during nose high, low airspeed
1. Collective � Judiciously increase, if possible.
2. Pedals � As required.
3. Cyclic � Move to neutral position.
4. Land immediately.
Mast Bumping: during slope landing
1. Cyclic - Move to center to stop bumping.
2. Reestablish hover.
3. Land immediately.
Vortex Ring State Recovery with Forward Displacement
Note: use only when at high altitude
1. Collective - decrease
Warning: increasing collective while helicopter is settling into its downwash aggravates the condition
2. Cyclic - forward to gain airspeed
Warning: If the aircraft is in a tailwind, the applic
Vortex Ring State Recovery with Right Lateral Displacement
Note: use at low altitude or if obstacles are a factor
Steps 1 - 3 are simultaneous:
1. Collective - increase to climb power
Note: While increasing collective momentarily aggravates the condition, the
benefit of additional tail rotor thrust expedites late
Engine Failure in Flight
1. Autorotate
2. Shoulder harness - Lock
If time and altitude permit:
3. Mayday - transmit
4. Transponder - Emergency
5. Engine Restart in Flight Procedure - as required
Engine Failure at High Airspeed and Low Altitude
1. Cyclic - immediately apply aft
2. Autorotate
Overtorque
If overtorque exceeding 120%:
1. land as soon as possible
If overtorque less than 120%:
2. Land as soon as practicable.
Overtemp
1. Land as soon as possible
Overspeed
1. Land as soon as possible
Compressor Stall
1. Collective-lower
2. ENG Anti-ice switch - on
3. Cabin Heat Valve - ON
4. Check power available
If power is insufficient to maintain level flight:
5. Autorotate
6. Twist grip - flight idle
If power is sufficient to maintain level flight:
7. Land as soon
Underspeeding Nf/Nr
1. Collective - lower as required to maintain a minimum of 90% Nr
2. Twist grip - Full open
3. GOV RPM - Full increase
If underspeed persists:
4. Check power available
If power is not sufficient:
5. Autorotate
If sufficient power is available:
6. Land as
Engine Overspeed (Nf) Rotor RPM (Nr)
1. Twist Grip - Reduce (to maintain Nf/Nr in operating range).
2. Collective/twist grip - coordinate
3. land as soon as possible
Fuel Control Failure
1. Collective - adjust as required to maintain Nr in operating range
2. twist grip - adjust as required to maintain Nf in operating range
3. land as soon as possible
Engine Restart in Flight
1. Ng - note
If Ng is below 12 percent:
2. twist grip - Close
3. Starter - ON
4. at 12 percent Ng, Twist grip - Full Open
If Ng is 12 percent or above:
5. Starer - ON
6. at 58 percent Ng, starter - OFF
If light-off occurs:
7. Land as soon as possible
Main Drive Shaft Failure
1. autorotate
2. twist grip - adjust, if necessary, to maintain Nf in operating range
When on deck:
3. Emergency Shutdown - complete
Engine Chip
1. Check for secondary indications
If secondary indications exist:
2. Land as soon as possible
If no secondary indications exist, proceed as follows:
First Chip Light:
3. Press CLEAR CHIP
If ENG CHIP remains:
4. Land as soon as possible
If ENG CHIP exting
Abort Start
1. Twist grip - Close
2. Starter - OFF after TOT stabilizes at 400C or below
Mast Bumping
If mast bumping is suspected:
1. Establish positive G Load and/or balanced flight (as required)
2. Land immediately
Transmission Malfunction
If failure is imminent:
1. land immediately
2. shoulder harness - Lock
If failure is not imminent:
3. Land as soon as possible
Transmission Chip
First TRANS CHIP caution light:
1. check for secondary indications
If secondary indications exist:
2. Transmission Malfunction Procedure - Perform
If no secondary indications exists:
3. Press CLEAR CHIP
If TRANS CHIP caution light remains illuminated:
4.
Sprag Clutch Slippage
1. Autorotate
2. twist grip - FLT IDLE
If time and altitude permit:
3. Twist grip - smoothly rotate to full open
If Nf/Nr are married:
4. Collective - increase
If sprag clutch continues to slip:
5. Autorotate
6. Twist grip - closed
If the sprag clutch ree
Sprag Clutch Seizure
1. Ensure twist grip is full open
2. land as soon as possible
Complete Loss of Tail Rotor Thrust
In a hover:
1. Twist grip - Flight Idle
2. Cyclic - eliminate drift
3. Collective - increase to cushion landing
Transition to forward flight or hover/air taxi:
1. Twist grip - flight idle
2. cyclic - eliminate sideward drift
3. Collective - increase to cu
Tail Rotor Chip Caution
1. Land as soon as possible
Fixed Pitch in a Hover
Right yaw:
If rate of rotation is not excessive and landing surface is smooth and firm:
1. collective - decrease to effect a power-on landing
If rate of rotation is excessive or landing surface is unsuitable for a power-on landing:
2. Twist grip - reduce
Loss of Tail Rotor Effectiveness
1. Pedals - full left
2. collective - lower (as alt permits)
3. airspeed - increase
If spin cannot be stopped:
4. Autorotate
High Frequency Vibration
1. ECS - OFF
If vibrations cont:
2. Land as soon as possible
If vibrations cease:
3. Land as soon as practicable
Hydraulic Power Cylinder Malfunction
1. HYDRAULIC BOOST switch - OFF
2. Helicopter - regain control
3. Airspeed - adjust (to obtain most comfortable control movement level)
4. Land as soon as possible
Battery Hot
1. BAT switch - OFF
2. Land as soon as possible
Battery Temp Caution
1. BAT switch - off
2. Flight may be continued
Spare Caution
1. Check for other indications
2. land as soon as possible
Fuel Boost Pump Failure
1. Descent - initiate if above 6,000 feet PA and flight permits
2. Fuel Pressure and quantity - note
If both fuel boost pumps have failed (fuel pressure at 0):
3. Land as soon as possible
If only on boost pump has failed (fuel pressure 4 to 30 psi):
4. La
Airframe Fuel Filter Caution
1. Land as soon as possible
Suspected Fuel Leakage
1. Land as soon as possible
If time and altitude permit:
2. Transmit position and intentions
3. unnecessary electrical equipment - secure
When on deck:
4. Emergency Shutdown - completed
Engine Fire in Flight
1. Confirm existence of fire
If fire exists:
2. Land Immediately
3. Emergency shutdown - Complete
If fire not confirmed:
4. Land as soon as possible
5. Emergency Shutdown - complete after landing
Fuselage Fire
1. Land immediately
2. Emergency Shutdown - Complete
Electrical Fire - Unknown Origin
1. BAT switch - OFF
2. (C) STBY GEN switch - OFF
3. (C) If in VMC, STBY ATT IND switch - OFF
4. MAIN GEN swtich - OFF
If Fire Persists:
5. Land Immediately
6. Emergency shutdown - complete
If fire extinguishes:
7. Land as soon as possible
(then pull out P
Electrical Fire - Known Origin
1. Affected equipment - secure
2. affected circuit breakers - pull
If Fire persists:
3. Electrical fire - Unknown Origin Procedure - Execute
If Fire extinguishes:
4. Land as soon as practicable
Smoke and Fume Elimination
1. ECS and DEFOG blower - OFF
2. Vents/windows - Open
If fire persists:
3. Slip or skid aircraft to eliminate smoke and fumes
If source of the smoke and/or fumes cannot be identified:
4. Land as soon as possible
Post Shutdown Fire (internal)
1. Starter - Engage
2. Fuel valve - OFF
3. Ingniter circuit breaker - Pull
4. Starter - secure after fire is extinguished
Immediate Landing/Ditching
1. Crew and Passengers - Alert
2. Harness - Lock
3. Mayday - Transmit
4. Transponder - Emergency
5. Doors - Open/Jettison - as required
After landing:
6. Emergency Engine Shutdown - Execute
If water landing:
7. Underwater egress - execute
Underwater Egress
1. SEBD - Don, as required
2. Communication cords - disconnect
3. Doors - open/jettison
4. Place hand on known reference point
Once all violent motion has stopped:
5. Shoulder harness/lapbelt - release
6. Exit helicopter
After egress:
7. swim clear and in
Emergency Shutdown
1. Twist grip - close
2. Fuel valve - OFF
3. BAT switch - OFF
4. (C) STBY ATT IND switch - OFF
5. (C) Rotor Brake - Engage immediately
6. Helicopter - Egress, as required, Use fire bottle or get clear of the aircraft as applicable
Icing
1. ENG ANTI-ICING - ON
2. PITOT HEAT switches - HEAT
3. (C) Alternate static source knob - As required.
4. Descend or climb to a warmer temperature or vacate clouds/moisture.
If unable to get clear of icing conditions:
5. Land as soon as possible
Torquemeter Wet Line Rupture
1. Monitor engine oil instruments
2. Land as soon as possible
Engine or Transmission Oil Pressures
1. Land as soon as possible
Engine or Transmission Oil Temperature Malfunction
If either oil termperature gauge indicator exceeds red lin limitations:
1. Land as soon as possible
If either oil termperature gauge fluctuates or falls to zero:
2. Land as soon as practicable
Pitot-Static Instruments
1. PITOT HEAT switch(es) - HEAT
If pitot heat does not remedy the situation, accomplish the following:
2. (C) Alternate static source knob - Pull
If icing conditions are present:
3. Icing procedures - Execute
If icing conditions are not present:
4. Land a
Rotor Blade Stall
1. Severity of manuever - Decrease
2. Collective - Lower
3. Airspeed - Decrease
4. Altitude - descend, if flight permits
5. Rotor RPM - increase
Vortex Ring State
1. Controls - as required to clear vortex ring state
If impact is imminent:
2. Level skids to conform to terrain
Power Required Exceeds Power Available
1. Collective - Lower as required to maintain a minimum of 90% Nr
2. Twist grip - full open
3. Angle of bank - level wings
4. Airspeed - 50 KIAS (minimum power required airspeed)
5. Jettison - As required
If impact is imminent:
6. Level skids to conform t
Dynamic Rollover
1. Collective - lower to stop the roll
2. Cyclic - neutral
Uncommanded Right Roll During Flight Below 1g
1. Cyclic - Immediately apply aft to establish positive g load on rotor, then center laterally
When main rotor returns to positive thrust condition:
2. Controls - as required to regain balance flight
If mast bumping has occurred:
3. Land immediately
Emergency Descent
1. Collective - Lower (to minimum pitch)
2. AIrspeed - 130 KIAS (122 KIAS maximum with FCS on)
Land immediately
Execute a landing without delay
Land as soon as possible
Land at the first site at which a safe landing can be made
Land as soon as practicable
Extended flight is not recommended. The landing site and duration of flight is at the discretion of the pilot in command.
Mast Bumping: Start/shutdown
1. cyclic - move to stop bumping
2. emergency shutdown procedures - complete
Mast Bumping: during high-speed sideward or rearward flight
1. cyclic - immediately apply smoothly toward center
2. pedals - immediately apply as required to align the nose with the direction of travel
Mast Bumping: during engine failure at high forward airspeed
1. Cyclic � Move aft to maintain positive g (thrust).
2. Collective � As required to maintain Nr.
3. Autorotation � Continue.
Mast Bumping: During low g maneuvers (below + 0.5g, other than
nose high)
1. Cyclic � Aft, then center laterally to regain positive g
(thrust) on the rotor and maintain Nr.
2. Land immediately.
Mast Bumping: during nose high, low airspeed
1. Collective � Judiciously increase, if possible.
2. Pedals � As required.
3. Cyclic � Move to neutral position.
4. Land immediately.
Mast Bumping: during slope landing
1. Cyclic - Move to center to stop bumping.
2. Reestablish hover.
3. Land immediately.
Vortex Ring State Recovery with Forward Displacement
Note: use only when at high altitude
1. Collective - decrease
Warning: increasing collective while helicopter is settling into its downwash aggravates the condition
2. Cyclic - forward to gain airspeed
Warning: If the aircraft is in a tailwind, the applic
Vortex Ring State Recovery with Right Lateral Displacement
Note: use at low altitude or if obstacles are a factor
Steps 1 - 3 are simultaneous:
1. Collective - increase to climb power
Note: While increasing collective momentarily aggravates the condition, the
benefit of additional tail rotor thrust expedites late