AMC EC145 (BK117C) Emergency Procedures

Question 1

DISCLAIMER

Answer 1

This flash card study aide is provided to ease and assist in studying much more comprehensive material provided by Eurocopter / Airbus. The creator of this study aide and AMC accepts no responsibility for inaccuracies or abbreviation of procedures. This is intended to introduce the associated material and all persons using these cards should study and reference the officially distributed material from the manufacturer. It is recommended that after referencing each card, the student should independently verify the information on that card by looking it up and learning the comprehensive information from the direct source. If any inaccuracies, misleading or typo errors are found, please notify the administrator of the study deck.

Question 2

OEI flight condition – Establish

Define

Answer 2

1. In case that power of affected engine tends to zero:
   
   1. Maintain the normal engine within OEI limits
   2. Attempt to obtain a safe single engine flight condition. If a climb is necessary to reach a safe flight altitude, attempt to obtain Vy (best rate of climb) or 45 kts (best climb gradient speed).
   3. Continue with the remaining steps of the relevant procedure.
2. In case that affected engine still delivers power:I
   
   1. If deemed necessary, try to escape from immediate danger with both engines operating
   2. Establish steady level flight and determine if the situation will allow for OEI flight. As a rule of thumb, this can be done by checking that the sum of the individual engine torques is lower than the OEI torque limit. If this is fulfilled, re-check OEI power available by setting the affected engine to IDLE while maintaining the normal engine within appropriate OEI limit.
      
      1. If engine power is sufficient for OEI flight and if a safe OEI landing can be assumed, continue with the remaining steps of the relevant procedure.
      2. If engine power is not sufficient for OEI flight or if a safe OEI landing is not assured, LAND AS SOON AS POSSIBLE. If necessary, re-establish power of affected engine before landing. After landing perform single engine emergency shutdown of affected engine

Question 3

WARNINGS AND CAUTIONS

Answer 3

• A red warning light on the WARNING PANEL coming on together with a gong signal or dedicated audio signal indicates an emergency condition requiring immediate corrective action.
• A caution indication on the CAD and two yellow master caution lights on the instrument panel indicate malfunction or failure conditions which do not require immediate crew action but the possible need for future corrective action.

Question 4

BAT

TEMP

Answer 4

Conditions/Indications

Battery overtemperature (above 70°c)

• Warning gong will be activated

Procedures

• ON GROUND
  
  • 1. BAT MSTR sw – OFF
  • 2. Engines – Shut down

CAUTION BATTERY MUST BE INSPECTED OR REPLACED PRIOR TO NEXT FLIGHT.

• IN FLIGHT – Single pilot operation:
  
  • 1. BAT MSTR sw – OFF
  • 2. LAND AS SOON AS POSSIBLE
  • 3. Engine shutdown – Perform
  • 4. Visual inspection of battery – Perform If visual inspection reveals no indication of battery overheating:
  • 5. Start-up procedure – Perform
  • 6. BAT MSTR sw – OFF

NOTE Continue flight in VMC only. On CAD the BAT DISCON caution will appear.

LAND AS SOON AS PRACTICABLE

Question 5

ENG 1 FAIL

or

ENG 2 FAIL

Answer 5

Conditions/Indications

• Respective N1-RPM below threshold value.

Procedure

1. OEI flight condition – Establish
2. Affected engine – Identify
3. Single engine emergency shutdown – Perform

LAND AS SOON AS PRACTICABLE

Question 6

FIRE

(ENGINE 1)

or

FIRE

(ENGINE 2

Answer 6

Conditions/Indications

Overtemperature in engine compartment – Warning bell will be activated

Procedure

• ON GROUND
  
  • 1. FIRE sw (affected engine) – Raise guard, press

NOTE Affected engine will shut down automatically, ACTIVE indicatior light, BOT 1 legend (both EMER OFF SW pnl), and F VALVE CL caution indication (CAD) come on. FIRE legend remains on as long as overheat condition exists.

• 2. Both FUEL PRIME PUMPS – Check OFF
• 3. BOT 1/BOT 2 pb – Press; bottle 1 activated; – EXT indicator light comes on (EMER OFF SW pnl)

NOTE Extinguisher bottle will begin discharging when N1 < 50%. After discharge of bottle contents, BOT 1 legend and EXT indicatior light go off; BOT 2pb legend comes on.

• 4. Clock stop watch – Start (after BOT 1 legend and EXT indicator light go off (EMER OFF SW pnl)
• 5. Double engine emergency shutdown – Perform
• 6. Passengers – Alert/Evacuate

If situation permits and FIRE warning is still on after 1 minute:

• 7. BOT 1/BOT 2 pb – Press; bottle 2 activated; – EXT indicator light comes on (EMER OFF SW pnl)
• 8. BAT MSTR sw – OFF

IN FLIGHT

• 1. OEI flight condition – Establish
• 2. Airspeed – Reduce if IAS is exceeding 100 kts
• 3. FIRE sw (affected engine) – Raise guard, press

NOTE Affected engine will shut down automatically, ACTIVE indicatior light, BOT 1 legend (both EMER OFF SW pnl), and F VALVE CL caution indication (CAD) come on. FIRE legend remains on as long as overheat condition exists.

• 4. BOT 1/BOT 2 pb – Press; bottle 1 activated; – EXT indicator light comes on (EMER OFF SW pnl)

NOTE Extinguisher bottle will begin discharging when N1 < 50%. After discharge of bottle contents, BOT 1 legend and EXT indicatior light go off; BOT 2pb legend comes on.

• 5. Clock stop watch – Start (after BOT 1 legend and EXT indicator light go off (EMER OFF SW pnl)
• 6. Affected engine – Identify
• 7. Single engine emergency shutdown – Perform
• 8. Passengers – Alert
• 9. LAND AS SOON AS POSSIBLE If FIRE warning is still on after 1 minute:
• 10. BOT 1/BOT 2 pb – Press; bottle 2 activated; – EXT indicator light comes on (EMER OFF SW pnl) If FIRE warning remains on:

LAND IMMEDIATELY

Question 7

LOW

FUEL 1

and/or

LOW

FUEL 2

Answer 7

Conditions/Indications

Respective supply tank fuel quantity below 24 kg (8 Gal)

Warning gong will be activated

Procedure

• 1. Fuel quantity indication – Check If positive fuel indication in the main tank:
• 2. Both fuel pump XFER sw (Fwd + Aft) – Check ON
• 3. Both fuel pump XFER circuit breakers (Fwd + Aft) – Check in

If both FUEL LOW warning lights remain on:

• 4. LAND WITHIN 10 MINUTES If one FUEL LOW warning light remains on:
• 5. Expect single engine failure

Question 8

ROTOR

RPM

Answer 8

Conditions/Indications

Nro low

• NRO 95% or less - steady light
• Audio signal - low–pitch beeping tone

NRO high

• NRO 106% or above - flashing light and warning gong
• Audio signal at 110% or above - flashing light and steady high–pitch tone

Procedure NRO low/NRO high

• 1. Rotor RPM indicator – Check
• 2. Collective lever – Adjust as necessary to maintain Nro within normal range

Question 9

XMSN OIL

PRESS

Answer 9

Conditions/Indications

XMSN oil pressure is below minimum

• Transmission oil pressure indication 1 bar or less
• Warning gong will be activated

NOTE XMSN OIL PRESS warning light may come on momentarily during extreme side slip, sidewards flight, crosswind hover or slope operations.

Procedure

• If one XMSN oil pressure indication is below 1.0 bar:
  
  • 1. Power – Reduce
  • 2. LAND AS SOON AS PRACTICABLE
• If both indications are below 1.0 bar:
  
  • 3. LAND IMMEDIATELY

NOTE Descend with minimum power

Question 10

ENG CHIP

(SYSTEM 1)

or

ENG CHIP

(SYSTEM 2)

Answer 10

Conditions/Indications

Metal particles detected in engine oil.

Procedure

• ON GROUND
  
  • 1. Affected engine – Identify
  • 2. Single engine emergency shutdown – Perform
• IN FLIGHT
• 1. OEI flight condition – Establish
• 2. Affected engine – Identify
     * 1. Alternative:
• 3. Single engine emergency shutdown – Perform
     * 2. Alternative:
• 3. Twist grip (affected engine) – Rotate slowly to IDLE, check indications

CAUTION THE SECOND ALTERNATIVE ENABLES THE CREW TO USE THE AFFECTED ENGINE FOR LANDING IF NECESSARY. BE PREPARED FOR ENGINE FAILURE. MONITOR N1, TOT, TORQUE, OIL PRESSURE AND TEMPERATURE OF AFFECTED ENGINE CLOSELY. IF THE PARAMETERS FLUCTUATE OR THEIR LIMITS ARE EXCEEDED PERFORM SINGLE ENGINE EMERGENCY SHUTDOWN IMMEDIATELY.

LAND AS SOON AS PRACTICABLE

Question 11

ENG OIL P

(SYSTEM 1)

OR

ENG OIL P

(SYSTEM 2)

Answer 11

Conditions/Indications

Affected engine oil pressure below minimum.

Procedure

• 1. Engine oil pressure – Check
• 2. OEI flight condition – Establish
• 3. Affected engine – Identify
• 4. Single engine emergency shutdown – Perform

LAND AS SOON AS PRACTICABLE

Question 12

FUEL FILT

(SYSTEM 1)

and/or

FUEL FILT

(SYSTEM 2)

Answer 12

Conditions/Indications

Engine fuel filter(s) contaminated.

Procedure

One caution indication:

LAND AS SOON AS PRACTICABLE

CAUTION BE PREPARED FOR SINGLE ENGINE FAILURE.

Both caution indications:

LAND AS SOON AS POSSIBLE

CAUTION BE PREPARED FOR DOUBLE ENGINE FAILURE.

Question 13

GEN DISCON

(SYSTEM 1)

or

GEN DISCON

(SYSTEM 2)

Answer 13

Conditions/Indications

One generator has failed or is disconnected from the power distribution system.

Both non–essential buses are disconnected.

Procedure

NOTE Depending on the cause of the GEN DISCON, when switching off both BUSTIE switches the GEN DISCON indication could switch to the opposite side or both generators could come on with Voltage < 28.2 V or > 28.8 V, Current < 0 A or > 200 A. In this case still continue with procedure as stated.

• 1. DC VOLTS, GEN AMPS – Check
     * If one or both parameters: Voltage < 28.2 V or > 28.8 V, Current < 0 A or > 200 A
• 2. Both BUSTIE sw’s – OFF
     * (both BUSTIE OPN cautions present)
• If voltage > 30.5 V:
• 3. Both GEN sw’s – OFF (both GEN DISCON cautions present)
• 4. Generator failure isolation – Peform, refer to para 3.7.1
• If Voltage = 28.5 +_0.3 V (system supplied by at least one generator)
  
  • 3. GEN sw (affected generator) – OFF
  • 4. LAND AS SOON AS PRACTICABLE
• If Voltage = 28.5 +_0.3 V and Current = 0 A - 200 A (system supplied by at least one generator):
• 2. GEN sw (affected generator) – OFF
• 3. LAND AS SOON AS PRACTICABLE
• WHEN GEN 2 IS DISCONNECTED AND BOTH BUSTIE SW ARE OFF, THE RADALT FUNCTION IS LOST WHICH WILL REDUCE CAPABILITIES OF THE AUTOPILOT, AS THE AUTO LEVEL OFF FUNCTION WILL BE LOST.

NOTE

• Systems on SHED BUS of affected side will be lost once BUSTIE switches are OFF. Furthermore the other SHED BUS will be lost when both GEN switches are off resulting in various cautions, indicating these systems are failed.
• One generator alone will provide sufficient power for continued flight until safe landing can be made.
• If winch operation is required for safety of flight, the BUSTIE 1 switch can be momentarily switched to RESET, then NORM, winch operation attempted and when finished the BUSTIE 1 switch must be turned OFF again.

Question 14

GEN OVHT

(SYSTEM 1)

or

GEN OVHT

(SYSTEM 2)

Answer 14

Conditions/Indications

Temperature of generator high.

Procedure

• 1. Affected GEN sw – OFF

CAUTION IF GEN OVHT CAUTION INDICATION REMAINS ON AND IF THERE ARE INDICATIONS OF A FIRE SUCH AS BURNING ODOR OR SMOKE, SHUT DOWN THE AFFECTED ENGINE.

If GEN OVHT caution indication remains on for more than 1 minute:

• 2. OEI flight condition – Establish
• 3. Affected engine – Identify
• 4. Single engine emergency shutdown – Perform

LAND AS SOON AS PRACTICABLE

Question 15

XMSN OIL T

Answer 15

Conditions/Indications

Transmission oil temperature above maximum.

Procedure

• 1. XMSN oil temperature and oil pressure indication – Check
     * If indications are within limits:
• 2. LAND AS SOON AS PRACTICABLE
     * If indications are above limit:
• 2. Power – Reduce, as much as possible
     * If oil temperature indication remains above limit:
• 3. LAND AS SOON AS POSSIBLE

Question 16

SINGLE ENGINE FAILURE

HOVER

IGE

Answer 16

Conditions/Indications

• Slight jerk in the yaw axis, nose left
• Possible change in noise level

Affected engine:

• ENG FAIL warning light and warning gong on
• ENG SPLIT caution indication
• ENG OIL P caution indication
• FUEL PRESS caution indication
• GEN DISCON caution indication
• OVSP FAIL caution indication
• VAR NR caution indication
• NORM/MAN pb (main switch panel) MAN legend comes on (yellow) – Instruments indicate power loss

NOTE The VAR NR system will revert to the manual mode automatically.

Procedure

• 1. Collective lever – Adjust to OEI limits or below
• 2. Landing attitude – Establish
• 3. Collective lever – Raise as necessary to stop descent and cushion landing

After landing:

• 4. Affected engine – Identify
• 5. Single engine emergency shutdown – Perform

Question 17

SINGLE ENGINE FAILURE

HOVER

OGE

Answer 17

Conditions/Indications

• Slight jerk in the yaw axis, nose left
• Possible change in noise level

Affected engine:

• ENG FAIL warning light and warning gong on
• ENG SPLIT caution indication
• ENG OIL P caution indication
• FUEL PRESS caution indication
• GEN DISCON caution indication
• OVSP FAIL caution indication
• VAR NR caution indication
• NORM/MAN pb (main switch panel) MAN legend comes on (yellow) – Instruments indicate power loss

NOTE The VAR NR system will revert to the manual mode automatically.

Procedure

• 1. Collective lever – Adjust to maintain rotor RPM
• 2. Airspeed – Increase if possible
     * FORCED LANDING
• 3. Landing attitude – Establish
• 4. Collective lever – Raise as necessary to stop descent and cushion landing

After landing:

• 5. Affected engine – Identify
• 6. Single engine emergency shutdown – Perform
     * TRANSITION TO OEI - FLIGHT
• 3. Collective lever – Adjust to OEI-limits or below
• 4. Rotor speed – Trim to maximum
• 5. Airspeed – Gain, 65 KIAS (VY) After reaching safe altitude:
• 6. Collective lever – Reduce to OEI MCP or below
• 7. Affected engine – Identify
• 8. Single engine emergency shutdown – Perform
• 9. LAND AS SOON AS PRACTICABLE

Question 18

SINGLE ENGINE FAILURE

TAKEOFF

Answer 18

Conditions/Indications

• Slight jerk in the yaw axis, nose left
• Possible change in noise level

Affected engine:

• ENG FAIL warning light and warning gong on
• ENG SPLIT caution indication
• ENG OIL P caution indication
• FUEL PRESS caution indication
• GEN DISCON caution indication
• OVSP FAIL caution indication
• VAR NR caution indication
• NORM/MAN pb (main switch panel) MAN legend comes on (yellow) – Instruments indicate power loss

NOTE The VAR NR system will revert to the manual mode automatically.

Procedure

• 1. Collective lever – Adjust to maintain rotor RPM
     * REJECTED TAKEOFF
• 2. Landing attitude – Establish
• 3. Collective lever – Raise as necessary to stop descent and cushion landing
     * After landing:
• 4. Affected engine – Identify
• 5. Single engine emergency shutdown – Perform
     * TRANSITION TO OEI - FLIGHT
• ​2. Collective lever – Adjust to OEI-limits or below
• 3. Rotor speed – Trim to maximum
• 4. Airspeed – Gain, 65 KIAS (VY) After reaching safe altitude:
• 5. Collective lever – Reduce to OEI MCP or below
• 6. Affected engine – Identify
• 7. Single engine emergency shutdown – Perform

LAND AS SOON AS PRACTICABLE​

Question 19

SINGLE ENGINE FAILURE

FLIGHT

Answer 19

Conditions/Indications

• Slight jerk in the yaw axis, nose left
• Possible change in noise level

Affected engine:

• ENG FAIL warning light and warning gong on
• ENG SPLIT caution indication
• ENG OIL P caution indication
• FUEL PRESS caution indication
• GEN DISCON caution indication
• OVSP FAIL caution indication
• VAR NR caution indication
• NORM/MAN pb (main switch panel) MAN legend comes on (yellow) – Instruments indicate power loss

NOTE The VAR NR system will revert to the manual mode automatically.

Procedure

• 1. OEI flight condition – Establish
• 2. Rotor speed – Trim to maximum
• 3. Affected engine – Identify
• 4. Single engine emergency shutdown – Perform

LAND AS SOON AS PRACTICABLE

Question 20

SINGLE ENGINE FAILURE

APPROACH

Answer 20

Conditions/Indications

• Slight jerk in the yaw axis, nose left
• Possible change in noise level

Affected engine:

• ENG FAIL warning light and warning gong on
• ENG SPLIT caution indication
• ENG OIL P caution indication
• FUEL PRESS caution indication
• GEN DISCON caution indication
• OVSP FAIL caution indication
• VAR NR caution indication
• NORM/MAN pb (main switch panel) MAN legend comes on (yellow) – Instruments indicate power loss

NOTE The VAR NR system will revert to the manual mode automatically.

Procedure

• 1. Rotor speed – Trim to maximum
• 2. Single engine landing procedure – Perform After landing:
• 3. Affected engine – Identify
• 4. Single engine emergency shutdown – Perform

Question 21

SINGLE ENGINE FAILURE

LANDING

Answer 21

Conditions/Indications

One engine inoperative (OEI)

Procedure

LANDING APPROACH:

• 1. Rotor speed – Check maximum
• 2. Bleed air heating (if installed) – Check OFF
• 3. Airspeed – 65 KIAS (VY)
• 4. Shallow approach – Establish ON FINAL, AT 50 FT AGL:
• 5. Airspeed – 40 KIAS
• 6. Rate of descent – Max. 500 ft/min TOUCHDOWN:
• 7. Airspeed – Reduce to minimum depending on power available
• 8. Landing attitude – Establish
• 9. Collective lever – Raise as necessary to stop descent and cushion landing

CAUTION AN OSCILLATION, WHICH COULD BE UNINTENTIONALLY INDUCED/ASSISTED BY THE PILOT (PIO/PAO) MAY BE EXPERIENCED DURING RUNNING LANDING OR HARDER VERTICAL LANDINGS. IN CASE OF PIO/PAO, RAPIDLY INCREASE OR DECREASE COLLECTIVE LEVER, WHICHEVER THE SITUATION ALLOWS, UNTIL OSCILLATION HAS STOPPED. AFTER LANDING:

• 10. Collective lever – Lower slowly
• 11. Cyclic stick – Maintain neutral position

Question 22

SINGLE ENGINE

EMERGENCY SHUTDOWN

Answer 22

NOTE

• The VAR NR system will revert to the manual mode automatically.
• Before performing an inflight single engine emergency shutdown, determine if the situation will allow for OEI flight.
• Make certain that:
  
  • the controls of the affected engine are selected, and
  • the collective lever is adjusted to maintain the normal engine within the OEI limits

Procedure

• 1. Twist grip (affected engine) – Rotate slowly to IDLE, check indications, then to OFF
• 2. Rotor speed – Trim to maximum
     * Bleed air heating (if installed) will be shut down automatically, however, depending on power margin of the remaining engine, may be re–engaged as follows:
     * 3. BLD HTG EMER/NORM sw – EMER
     * 4. BLD HTG rheostat – ON

Question 23

ENGINE OVERSPEED

DRIVESHAFT FAILURE

Answer 23

Conditions/Indications

• VAR NR caution indication
• NRO decrease

Affected engine:

• ENG SPLIT caution indication
• Torque decreases to zero
• N1 decreases
• N2 increases above NRO and either:
  
  • drops back to 100% or below, or
  • increases to 123.1%, causing the overspeed protection system to shut down the engine automatically.

Normal engine:

• Torque, N1 and TOT increase
• N2 decreases

CAUTION WHEN AN ENGINE HAS BEEN SHUT DOWN BY ITS OVERSPEED PROTECTION SYSTEM, THE OTHER ENGINE’S SYSTEM IS INTERLOCKED TO AN INACTIVE STATUS. THUS, THE NORMAL ENGINE IS NO LONGER PROTECTED AGAINST POWER TURBINE OVERSPEED.

Procedure

• 1. OEI flight condition – Establish
• 2. Affected engine – Identify
• 3. Single engine emergency shutdown – Perform

LAND AS SOON AS PRACTICAL

Question 24

ENGINE OVERSPEED

GOVERNOR FAILURE

Answer 24

Conditions/Indications

• ROTOR RPM warning light may come on
• VAR NR caution indication may come on
• ENG SPLIT caution indications may come on
• NRO and both N2 increase

Affected engine:

• Torque, N1 and TOT increase

Normal engine:

• Torque and TOT may decrease

Procedure

• 1. Collective lever – Raise as necessary to maintain N2 and NRO within limits
• 2. VAR NR system NORM/MAN sw – Check MAN
• 3. N2 TRIM sw – Try to trim NRO to 101% with matched torque

If step 3. is not possible:

• 4. Affected engine – Identify
• 5. Twist grip (affected engine) – Rotate towards IDLE until N2 and NRO stabilize in normal range and FLI needles match
• 6. LAND AS SOON AS PRACTICABLE

Approach and landing recommendations

Make normal power changes to allow the normal engine to operate within limits. If more collective input is needed, adjust power of the affected engine using twist grip. .

After landing:

Rotate twist grip (affected engine) towards IDLE before lowering the collective lever to full-down position (maintain NRO and N2 within limits).

CAUTION

N2 RPM OVER 123.1% MAY RESULT IN AN ENGINE OVERSPEED TRIP (AUTOMATIC SHUTDOWN).

Question 25

ENGINE UNDERSPEED

GOVERNOR FAILURE

Answer 25

Conditions/Indications

• ROTOR RPM warning light may come on
• VAR NR caution indication may come on
• ENG SPLIT caution indications may come on

Affected engine:

• Torque, N1 and TOT decrease
• N2 may decrease

Normal engine:

• NRO and N2 may decrease

Procedure

• 1. OEI flight condition – Establish
• 2. Bleed air consumers – Off
• 3. VAR NR system NORM/MAN pb – Check MAN
• 4. Affected engine – Identify
• 5. N2 TRIM sw – Compensate N2/NRO drop and try to match torque

If torque match is not possible:

• 6. Twist grip (affected engine) – Release stop plate and rotate towards FLIGHT until N2 and NRO stabilize in normal range and FLI needles match
• 7. LAND AS SOON AS PRACTICABLE

If no residual torque (affected engine) is available:

• 8. Single engine emergency shutdown – Perform

Approach and landing recommendations

Make normal power changes to allow the normal engine to operate within limits. If more collective input is needed, adjust power of the affected engine using twist grip.

After landing: Rotate twist grip (affected engine) towards IDLE before lowering the collective lever to full-down position (maintain NRO and N2 within limits).

CAUTION

N2 RPM OVER 123.1% MAY RESULT IN AN ENGINE OVERSPEED TRIP (AUTOMATIC SHUTDOWN).

Question 26

COMPRESSOR

STALL

Answer 26

Conditions/Indications

• Popping sounds
• Torque and N1 indications may decrease
• TOT may increase
• Slight yaw jerk

Procedure

• 1. Collective lever – Lower
• 2. Engine instruments – Monitor
• 3. Collective lever – Raise slowly If compressor stall returns:
• 4. Affected engine – Identify (TOT)
• 5. Single engine emergency shutdown – Perform
• 6. LAND AS SOON AS PRACTICABLE

Question 27

DROOP COMPENSATOR FAILURE

Answer 27

Conditions/Indications

• NRO and both N2 decrease when collective lever is raised
• NRO and both N2 increase when collective lever is lowered

Procedure

NOTE

Avoid large collective lever changes.

• 1. Collective lever – Maintain NRO within limits
• 2. LAND AS SOON AS PRACTICABLE

Question 28

ENG OIL

TEMP HIGH

Answer 28

Conditions/Indications

Affected engine:

• Oil temperature indication above limits

Procedure

• 1. OEI flight condition – Establish
• 2. Affected engine – Identify
• 3. Twist grip (affected engine) – Adjust to 20–30% torque (TWIST GRIP caution indication comes on)
• 4. Oil temperature indicator (affected engine) – Monitor If engine oil temperature decreases below limit:
• 5. LAND AS SOON AS PRACTICABLE If engine oil temperature still remains above limit:
• 6. Single engine emergency shutdown – Perform
• 7. LAND AS SOON AS PRACTICABLE

Question 29

DOUBLE ENGINE FAILURE

HOVER IGE

Answer 29

Conditions/Indications

• Yawing motion nose left
• NRO and both N2 decrease
• ROTOR RPM warning light (NRO low) on
• Both ENG FAIL warning lights on
• Both ENG OIL P caution indications
• Both FUEL PRESS caution indications
• Both GEN DISCON caution indications
• Engine Instruments (both engines) indicate power loss

Procedure

• 1. Right pedal – Apply as necessary to stop yaw
• 2. Landing attitude – Establish
• 3. Collective lever – Raise as necessary to cushion landing

Question 30

DOUBLE ENGINE FAILURE

FLIGHT

Answer 30

Conditions/Indications

• Yawing motion nose left
• NRO and both N2 decrease
• ROTOR RPM warning light (NRO low) on
• Both ENG FAIL warning lights on
• Both ENG OIL P caution indications
• Both FUEL PRESS caution indications
• Both GEN DISCON caution indications
• Engine Instruments (both engines) indicate power loss

Procedure

• Autorotation – Perform

Question 31

DOUBLE ENGINE

EMERGENCY SHUTDOWN

Answer 31

Procedure

ON GROUND

• 1. Both Twist grips – OFF
• 2. Both FUEL PRIME PUMP sw – OFF
• 3. BAT MSTR sw – OFF

IN FLIGHT

• 1. Both Twist grips – OFF If there is an indication that the engines are still running:
• 2. Both EMER OFF sw – Press

Question 32

AUTOROTATION

Answer 32

Procedure

• 1. Collective lever – Reduce to maintain NRO within limits
• 2. Airspeed – 75 KIAS recommended

NOTE

Maximum range airspeed - 90 KIAS

Minimum rate-of-descent airspeed - 60 KIAS

• 3. Double engine emergency shutdown – Perform AT APPROXIMATELY 100 FT AGL:
• 4. Flare attitude – Establish (approx. 15° to 20°) to reduce forward speed and rate of descent; control NRO
• AT APPROXIMATELY 8 – 12 FT AGL:
• 5. Flare attitude – Reduce to approx 7°
• 6. Heading – Maintain
• 7. Collective lever – Raise to stop descent and cushion landing
• 8. BAT MSTR sw – OFF

NOTE

The appropriate values must be adjusted according to prevailing conditions of gross mass, wind and terrain.

Question 33

CABIN FIRE

Answer 33

Conditions/Indications

• Smoke, burning odor, flames

Procedure

ON GROUND

• 1. Double engine emergency shutdown – Perform
• 2. Passengers – Alert/Evacuate
• 3. Fire – Extinguish if possible

IN FLIGHT

• 1. Airspeed – 65 KIAS recommended
• 2. Passengers – Alert
• 3. Heating/air conditioning (if installed) – OFF
• 4. Fire – Extinguish if possible
• 5. Fumes, smoke, fire extinguishing fumes/gas – Eliminate, open doors, windows and vents (fresh air)

CAUTION

AVOID INHALATION OF FUMES, SMOKE, FIRE EXTINGUISHING FUMES/GAS.

• 6. LAND AS SOON AS POSSIBLE After landing:
• 7. Double engine emergency shutdown – Perform

Question 34

ELECTRICAL FIRE

SHORT CIRCUIT

Answer 34

Conditions/Indications

• Odor of burning insulation and/or acid smoke

Procedure

ON GROUND

• 1. Double engine emergency shutdown – Perform
• 2. Passengers – Alert/evacuate
• 3. EPU, if connected – Disconnect
• 4. Fire – Extinguish if possible

IN FLIGHT

WARNING BE PREPARED FOR LOSS OF ALL ELECTRICAL SYSTEMS, EXCEPT STANDBY INSTRUMENTS.

NOTE

• If conditions require open window(s) or sliding door(s) and vents for fresh air.
• If the source of the smoke or fire can be positively identified, remove electrical power to the equipment, either by switching it off, or by pulling the associated circuit breaker.
  
  • 1. Both BUS TIE sw’s – OFF (both BUSTIE OPN cautions present)
  • 2. GEN 1 and GEN 2 sw’s – OFF (both GEN DISCON cautions and BAT DISCH caution present)
  • 3. Electrical consumers – Reduce as much as possible
  • 4. Passengers – Alert

NOTE

• If landing without electrical systems is possible, turn off all electrical power sources.
• A generator reset should only be attempted when flight safety is at risk or the source of smoke or fire is positively identified and isolated from the electrical system.
• 5. Follow flow chart (see next page)

NOTE

• If winch operation is required for safety of flight, the GEN 1 can be momentarily be switched to RESET, then NORM, winch operation attempted and when finished the GEN 1 must be turned OFF again.
• Flight endurance depends on battery type and loading.

Question 35

COMPLETE LOSS OF TAIL ROTOR THRUST

HOVER IGE

Answer 35

Conditions/Indications

Complete loss of tail rotor thrust

• Tail rotor failure in power-on flight is indicated by a yawing motion nose right; the yaw rate depends on the aircraft power at the time of failure.

Procedure

• HOVER IN GROUND EFFECT
  
  • 1. Both Twist grips – Rotate to IDLE and simultaneously:
  • 2. Landing attitude – Establish
  • 3. Collective lever – Apply as necessary After landing:
  • 4. Double engine emergency shutdown – Perform
• HOVER OUT OF GROUND EFFECT
  
  • 1. Collective lever – Reduce as required to stop rotation If height permits:
  • 2. Airspeed – Gain, then proceed according to para 3.6.2 (Tail Rotor Drive Failure/Fixed-pitch Tail Rotor Control Failure - Forward Flight)

If height does not permits:

• 2. Both Twist grips – Rotate to IDLE
• 3. Collective lever – Raise to stop descent and cushion landing After landing:
• 4. Double engine emergency shutdown – Perform

Question 36

TAIL ROTOR DRIVE FAILURE

FIXED PITCH TR CONTROL FAILURE
FORWARD FLIGHT

Answer 36

Conditions/Indications

• No directional response after pedal inputs and/or
• Complete loss of tail rotor thrust and/or
• Locked pedals

NOTE

The procedure will vary depending on flight conditions, power setting and mass of the helicopter.

Procedure

• 1. Collective lever – Reduce to obtain minimum sideslip angle
• 2. Airspeed – Maintain 70 KIAS or higher
• 3. Suitable landing area – Select

NOTE

Landing surface should be hard (e.g. concrete, asphalt) and flat.

Left crosswind is advantageous

• 4. Shallow approach with nose left – Perform

If the airspeed can be reduced below 40 kts with the nose still pointing to the left:

• 5. Airspeed – Reduce close to the ground until nose is aligned with the flight direction
• 6. Landing – Perform

If the nose direction changes from left to right at airspeeds higher than 40 kts:

• 5. Airspeed – Increase
• 6. Approach – Abort, climb to sufficient height for autorotation

NOTE

Headwind is advantageous

• 7. Autorotation – Perform

NOTE

In final phase of flare the helicopter can yaw to the left due to friction effects.

Before touchdown, the groundspeed should be reduced to a minimum

Question 37

PEDAL

VIBRATIONS

Answer 37

Conditions/Indications

• Impending tail rotor system failure – Unusual pedal vibrations

Procedure

LAND AS SOON AS POSSIBLE