Bell 206L4 Emergency Procedures Flashcards
B206
What failure is indicated by the following:
1 - Left Yaw
2 - ENG OUT light illuminated
3 - Engine instruments indicate power loss
4 - Engine out audio
5 - NR decreasing
6 - ROTOR LOW RPM light and audio activated
Engine Failure
B206
What are the 6 possible indications of an engine failure?
1 - Left Yaw
2 - ENG OUT light illuminated
3 - Engine instruments indicate power loss
4 - Engine out audio
5 - NR decreasing
6 - ROTOR LOW RPM light and audio activated
B206
What is the max autorotational airspeed?
100 KIAS
B206
What is the minimum rate of descent autorotational airspeed?
52 KIAS
B206
What is the maximum glide distance airspeed?
69 KIAS
B206
What is the nominal autorotative airspeed?
61 KIAS
B206
During an autorotational landing, touchdown should be made prior to passing through what rotor RPM?
During the touchdown what should be avoided?
70%
On ground contact, smoothly reduce collective pitch with neutral cyclic.
Avoid holding collective up during ground run or floating for long distances.
B206
What failure is indicated by the following: 1 - Decrease in N1 2 - Subsequent decrease in N2 3 - Possible decrease in Nr 4 - Decrease in TORQUE
Engine Underspeed
B206
What are the 4 indications of an Engine Underspeed?
1 - Decrease in N1
2 - Subsequent decrease in N2
3 - Possible decrease in Nr
4 - Decrease in TORQUE
B206
Engine Underspeed Procedure?
1 - Collective - Adjust for 90-107% Nr
2 - Throttle - confirm full open
3 - If unable to maintain Nr, establish autorotative glide
4 - Prepare for power off landing
NOTE: If engine underspeeds but continues to operate, do not shutdown engine. This will help maintain tail rotor effectiveness and assist to cushion the landing.
What failure is indicated by the following: 1 - Increase in Nr 2 - Increase in N2 3 - Increase in N1 4 - Increase in TORQUE
Engine Overspeed
B206
What are the 4 indications of an Engine Overspeed?
1 - Increase in Nr
2 - Increase in N2
3 - Increase in N1
4 - Increase in TORQUE
B206
Procedure for Engine Overspeed?
1 - Throttle - Retard
2 - N1 or N2/Nr - Attempt to stabilize with throttle and collective
3 - TOT - monitor for normal operation
4 - Nr - Maintain 90 - 107% with throttle/collective
If pilots elects to shutdown engine:
5 - Enter autorotation
6 - Throttle - closed
7 - FUEL VALVE switch - OFF
8 - Accomplish auto descent & landing
B206
What failure is indicated by the following: 1 - Engine pops 2 - High or erratic TOT 3 - Decreasing or erratic N1 or N2 4 - TORQUE oscillations
Engine Compressor Stall / Surge
B206
What are the 4 indications of an Engine Compressor Stall / Surge?
1 - Engine pops
2 - High or erratic TOT
3 - Decreasing or erratic N1 or N2
4 - TORQUE oscillations
B206
Engine Compressor Stall / Surge Procedure?
1 - Collective - Reduce power, maintain slow cruise flight
2 - TOT & N1 - Check for normal indications
3 - ENGINE ANTI-ICING switch - ON
4 - PARTICLE SEP PRG switch - ON (if installed)
5 - HEATER switch - ON (if installed)
If pilot elects to continue flight:
6 - Collective - increase slowly to desired power
7 - TOT & N1 - monitor for normal response
8 - Land as soon as practical
If pilot elects to shut down engine:
9 - Enter autorotation
10 - Throttle - Closed
11 - Fuel Valve switch - OFF
12 - Accomplish Auto
Engine Hot Start / Shutdown Procedures?
1 - Throttle - Closed
2 - FUEL VALVE switch - OFF
3 - STARTER button - Press to motor engine until TOT stabilizes at normal temperature
4 - Complete helicopter shutdown
Engine oil pressure below minimum procedure?
1 - Monitor engine oil pressure and temperature
2 - Land as soon as possible
B206
Engine oil pressure above max or fluctuating abnormally procedure?
1 - Monitor engine oil pressure and temperature
2 - Land as soon as practical
B206
Engine oil temp increasing above normal OR temp above maximum procedure?
Land as soon as practical
What failure is indicated by the following: 1 - Left yaw 2 - Rapid decrease in Nr 3 - Rapid increase in N2 4 - ROTOR LOW RPM audio horn 5 - Illumination of ROTOR LOW RPM light 6 - Possible increase in noise level
Driveshaft Failure
B206
What are the 6 possible indications of a driveshaft failure?
1 - Left yaw 2 - Rapid decrease in Nr 3 - Rapid increase in N2 4 - ROTOR LOW RPM audio horn 5 - Illumination of ROTOR LOW RPM light 6 - Possible increase in noise level due to overspeeding engine and driveshaft breakage
B206
Driveshaft Failure Procedures?
1 - Accomplish autorotative descent & landing
2 - Complete helicopter shutdown
NOTE - To maintain tail rotor effectiveness, do not shutdown engine.
B206
Engine Fire on the Ground Procedure?
1 - Throttle - Closed 2 - FUEL VALVE switch - OFF 3 - BAT switch - OFF 4 - Rotor Brake - Engage 5 - Exit helicopter
B206
Engine Fire in Flight Procedures?
1 - Immediately enter autorotation
2 - Throttle - Closed
3 - FUEL VALVE switch - OFF
4 - If time permits, LEFT/RIGHT BOOST circtuit breakers - Pull out
5 - Accomplish auto descent and landing
6 - BAT switch - OFF
B206 Cabin Smoke Procedures?
1 - In flight - Start descent
2 - HEATER switch - OFF
3 - All vents - Open
4 - Side windows - Open
If time and altitude permits:
5 - Source - Attempt to identify and secure
6 - If source is ID’ed and smoke persists - Land as soon as possible
7 - If source is ID’ed and smoke is cleared - Land as soon as practical
What failure is indicated by the following:
1 - Uncontrollable yawing to the right (left sideslip)
2 - Nose down tucking
3 - Possible roll of fuselage
Complete Loss of Tail Rotor Thrust
What are the 3 indications of a Complete Loss of Tail Rotor Thrust
1 - Uncontrollable yawing to the right (left sideslip)
2 - Nose down tucking
3 - Possible roll of fuselage
NOTE - Severity of initial reaction of helicopter will be affected by AIRSPEED, CG, power being used, and Density Altitude
B206
Complete Loss of Tail Rotor Thrust Procedure?
Reduce throttle to idle
Immediately enter autorotation
Maintain minimum Airspeed of 52 KIAS during descent
In the event of a Complete Loss of Tail Rotor Thrust, if a landing area is not immediately available, what do you do (NOTE from EP)?
NOTE
When a suitable landing site is not available, vertical fin may permit controlled flight at low power levels and sufficient airspeed. During final stages of approach, a mild flare should be executed, making sure all power to rotor is off. Maintain helicopter in a slight flare and smoothly use collective to execute a soft, slightly nose-high landing. Landing on aft portion of skids will tend to correct side drift. This technique will, in most cases, result in a run-on type landing.
What failure is indicated by the following:
1 - Lack of directional response
2 - Locked pedals
Fixed Pitch Failure
What are the 2 indications of a Fixed Pitch Failure?
1 - Lack of directional response
2 - Locked pedals
Fixed Pitch Failure at a Hover procedure and considerations?
Do not close throttle unless a severe right yaw occurs. If pedals lock in any position at a hover, landing from a hover can be accomplished with greater safety under power-controlled flight rather than by closing throttle and entering autorotation.
B206
Fixed Pitch Failure in flight - Left Pedal Applied procedures and considerations?
Helicopter will yaw left when power is reduced.
Adjust airspeed for comfortable yaw.
At higher airspeeds, vertical fin may increase left yaw
Establish power-on approach with sufficiently low airspeed.
Attain rate of descent with comfortable sideslip.
A decrease in N2 will decrease tail rotor thrust.
As collective is increased just before touchdown, left yaw will be reduced.
B206
Fixed Pitch Failure in flight - Right Pedal Applied procedures and considerations?
Helicopter will yaw right when power is increased.
Low power run-on type landing will be necessary.
For touchdown, gradually reduce throttle for heading while adding collective for cushion. If right yaw becomes excessive, close throttle.
B206
What failure is indicated by the following:
1 - Grinding or howling noise from pump
2 - Increase in force required to move flight controls
3 - Feedback forces may be evident during flight control movement
4 - Cyclic and collective movements are rate limited
Loss of Hydraulic Pressure
B206
What are the 4 indications of a Loss of Hydraulic Pressure?
1 - Grinding or howling noise from pump
2 - Increase in force required to move flight controls
3 - Feedback forces may be evident during flight control movement
4 - Cyclic and collective movements are rate limited
B206
Loss of Hydraulic Pressure Procedure?
1 - Airspeed - Reduce to 60-80 KIAS
2 - HYDR SYSTEM CB - Out. If hydraulics not restored - In
3 - HYDRAULIC SYSTEM switch - ON; OFF is hydraulic power is not restored
4 - Land as soon as practical
5 - A run-on landing at appx 9 KIAS is recommended
What failure is indicated by the following:
1 - Uncommanded flight control inputs
2 - High flight control forces to oppose movement in one axis
3 - Feedback forces only in affected flight control axis
4 - Flight control forces normal in unaffected axis.
Flight Control Actuator Malfunction
What are the 4 indications of a Flight Control Actuator Malfunction?
1 - Uncommanded flight control inputs
2 - High flight control forces to oppose movement in one axis
3 - Feedback forces only in affected flight control axis
4 - Flight control forces normal in unaffected axis.
B206
Flight Control Actuator Malfunction Procedure?
1 - Attitude - Maintain
2 - HYDRAULIC SYSTEM switch - OFF
3 - AIRSPEED - 60 to 80 KIAS
4 - Land as soon as Possible using Loss of Hydraulic Pressure Procedure.
B206
What failure is indicated by the following:
1 - GEN FAIL light illuminated
2 - DC loadmeter indicates 0% LOAD
GENERATOR FAILURE
What are the 2 indications of a Generator Failure?
1 - GEN FAIL light illuminated
2 - DC loadmeter indicates 0% LOAD
Generator Failure Procedure?
1 - GEN FIELD and GEN REST CBs - Check In
2 - GEN switch - RESET; then GEN
3 - If power is not restored, place GEN switch to OFF
4 - Land as soon as practical
B206
With all electrical equipment off, how long will an 80% charged battery operate the left fuel boost pump?
3 hours.
For night operations, appx 1 hour of battery power will be available.
What failure is indicated by the following:
1 - DC loadmeter indicates excessive load
2 - Smoke or fumes
Excessive Electrical Load
What are the 2 indications of an Excessive Electrical Load?
1 - DC loadmeter indicates excessive load
2 - Smoke or fumes
Excessive Electrical Load Procedure?
1 - GEN switch - OFF
2 - BAT switch - OFF
3 - LEFT FUEL BOOST CB - Check in
4 - Land as soon as practical
B206
In the event of an electrical failure, what are your considerations if the battery depletes and is no longer operating the LEFT BOOST PUMP?
Prior to battery depletion, altitude SHALL be reduced to below 6000 ft. PA. Once battery is depleted, unusable fuel may be as high as 86.3 pounds.
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