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LUH-72 Lakota Helicopter > Chapter 3 - Emergency Procedures > Flashcards

Chapter 3 - Emergency Procedures Flashcards

1
Q

LAND IMMEDIATELY

A

The urgency of landing is paramount. Primary consideration is to assure survival of the occupants. Landing in water, trees or other unsafe areas should be considered only as a last resort.

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2
Q

LAND AS SOON AS POSSIBLE (LAND ASAP)

A

Land without delay at the nearest adequate site (i.e. open field) at which a safe approach and landing can be made.

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3
Q

LAND AS SOON AS PRACTICABLE

A

The landing site and duration of flight are at the discretion of the pilot. Extended flight beyond the nearest approved landing area where appropriate assistance can be expected is not recommended.

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4
Q

BAT TEMP

Warning Light

A

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:

  1. Start-up procedure – Perform
  2. BAT MSTR sw – OFF

NOTE

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

  1. LAND AS SOON AS PRACTICABLE

In Flight: Dual pilot operation

  1. BAT MSTR sw – OFF
  2. LAND AS SOON AS POSSIBLE​
  3. Pilot remaining on seat – “Hands on”
  4. Engines – Leave running in IDLE
  5. Visual inspection of battery – Perform

NOTE

Continue flight (VMC) only if visual inspection reveals no indication of battery overheating. Leave battery OFF or disconnect battery. On CAD the BAT DISCON caution will appear.

  1. LAND AS SOON AS PRACTICABLE
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5
Q

ENG 1 FAIL or ENG 2 FAIL

Warning Lights

A
  1. OEI flight condition** – **Establish
  2. Affected engine** – **Identify
  3. Single engine emergency shutdown – Perform
  4. LAND AS SOON AS PRACTICABLE
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6
Q

FIRE (engine 1) or FIRE (engine 2)

Warning Lights

A

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.

  1. Both FUEL PRIME PUMPS – Check OFF
  2. 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 N1t 50%. After discharge of bottle contents, BOT 1 legend and EXT indicatior light go off; BOT 2pb legend comes on.

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

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

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

  1. 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 N1t 50%. After discharge of bottle contents, BOT 1 legend and EXT indicatior light go off; BOT 2pb legend comes on.

  1. Clock** **stop watch** – **Start (after BOT 1 legend and EXT indicator light go off (EMER OFF SW** **pnl)
  2. Affected engine** – **Identify
  3. Single engine emergency shutdown** – **Perform
  4. Passengers – Alert
  5. LAND AS SOON AS POSSIBLE

If FIRE warning is still on after 1 minute:

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

If FIRE warning remains on:

  1. LAND IMMEDIATELY
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7
Q

LOW FUEL 1 and/or LOW FUEL 2

Warning Lights

A
  1. Fuel quantity indication – Check

If positive fuel indication in the main tank:

  1. Both fuel pump XFER sw (Fwd + Aft) – Check ON
  2. Both fuel pump XFER circuit breakers (Fwd + Aft) – Check in

If both FUEL LOW warning lights remain on:

  1. LAND WITHIN 10 MINUTES

If one FUEL LOW warning light remains on:

  1. Expect single engine failure
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8
Q

ROTOR RPM

Warning Light

A
  1. Rotor RPM indicator** – **Check
  2. Collective lever** – **Adjust as necessary to maintain NRO within normal range
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9
Q

XMSN OIL

Warning Light

A

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:

  1. LAND IMMEDIATELY

NOTE

Descend with minimum power

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10
Q

ENG CHIP (system 1) or ENG CHIP (system 2)

Caution Indications

A

On Ground:

  1. Affected engine – Identify
  2. Single engine emergency shutdown – Perform

In Flight :

  1. OEI flight condition – Establish
  2. Affected engine** – **Identify

First Alternative:

  1. Single engine emergency shutdown** – **Perform

Second Alternative:

  1. 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.

  1. LAND AS SOON AS PRACTICABLE
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11
Q

ENG OIL P (system 1) or ENG OIL P (system 2)

Caution Indications

A
  1. Engine oil pressure** – **Check
  2. OEI flight condition** – **Establish
  3. Affected engine** – **Identify
  4. Single engine emergency shutdown** – **Perform
  5. LAND AS SOON AS PRACTICABLE
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12
Q

FUEL FILT (system 1) and/or FUEL FILT (system 2)

Caution Indications

A

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.

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13
Q

GEN DISCON (system 1) or GEN DISCON (system 2)

Caution Indications

A

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

  1. Both BUSTIE** **sw’s** – **OFF (both BUSTIE OPN cautions present)

If voltage > 30.5 V:

  1. Both GEN** **sw’s** – **OFF (both GEN DISCON cautions present)
  2. Generator failure isolation – Peform, refer to para 3.7.1

If Voltage = 28.5 “ 0.3 V (system supplied by at least one generator)

  1. GEN sw (affected generator) – OFF
  2. 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):

  1. GEN sw (affected generator) – OFF
  2. LAND AS SOON AS PRACTICABLE

Caution

Since one fuel transfer pump is powered by the shed bus, the amount of unusable fuel increases above that stated in section 2 when problem is identified on SYS1 side, BUSTIE 1 is opened and GEN 1 remains off.

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.

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14
Q

GEN DISCON (system 1) and GEN DISCON (system 2)

Caution Indications

A
  1. GEN AMPS** – **Check

If GEN AMPS < 0 A:

  1. Both BUSTIE** **sw’s** – **OFF (both BUSTIE OPN cautions present)

If both generators remain offline after turning BUS TIE sw’s OFF:

  1. Generator failure isolation – Peform, refer to para 3.7.1

If one generator comes online again after turning BUS TIE sw’s OFF:

  1. GEN sw (failed generator) – OFF
  2. LAND AS SOON AS PRACTICABLE

If GEN AMPS > 0 A:

Note

If GEN AMPS > 0 A this could mean the generator is actually functioning. Still continue procedure as stated.

  1. Generator failure isolation – Peform, refer to para 3.7.1

Caution

Since one fuel transfer pump is powered by the shed bus, the amount of unusable fuel increases above that stated in section 2 when problem is identified on SYS1 side, BUSTIE 1 is opened and GEN 1 remains off.

When GEN 2 remains disconnected and both BUSTIE sw are off, the RADALT is lost which will reduce capabilities of the autopilot, as the auto level off function will be lost.

Note

The battery will supply the ESS BUS 1 and 2.

Systems on SHED BUS of affected side will be lost once BUSTIE switches are OFF. Furthermore the other SHED BUS will be momentarily lost when both GEN switches are off resulting in various cautions, indicating these systems are failed.

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.

Flight endurance depends on battery type and loading

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15
Q

GEN OVHT (system 1) or GEN OVHT (system 2)

Caution Indications

A
  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:

  1. OEI flight condition** – **Establish
  2. Affected engine** – **Identify
  3. Single engine emergency shutdown** – **Perform
  4. LAND AS SOON AS PRACTICABLE
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16
Q

XMSN OIL T (misc)

Caution Indication

A
  1. XMSN oil temperature and oil pressure indication** – **Check

If indications are within limits:

  1. LAND AS SOON AS PRACTICABLE

If indications are above limit:

  1. Power** – **Reduce, as much as possible

If oil temperature indication remains above limit:

  1. LAND AS SOON AS POSSIBLE
17
Q

Single Engine Failure - Hover IGE

A
  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:

  1. Affected engine** – **Identify
  2. Single engine emergency shutdown** – **Perform
18
Q

Single Engine Failure - Hover OGE

A
  1. Collective lever** – **Adjust to maintain rotor RPM
  2. Airspeed** – **Increase if possible

FORCED LANDING

  1. Landing attitude** – **Establish
  2. Collective lever** – **Raise as necessary to stop descent and cushion landing

After landing:

  1. Affected engine** – **Identify
  2. Single engine emergency shutdown** – **Perform

TRANSITION TO OEI - FLIGHT

  1. Collective lever** – **Adjust to OEI-limits or below
  2. Rotor speed** – **Trim to maximum
  3. Airspeed** – **Gain, 65 KIAS (VY)

After reaching safe altitude:

  1. Collective lever** – **Reduce to OEI MCP or below
  2. Affected engine** – **Identify
  3. Single engine emergency shutdown** – **Perform
  4. LAND AS SOON AS PRACTICABLE
19
Q

Single Engine Failure - Takeoff

A
  1. Collective lever** – **Adjust to maintain rotor RPM

REJECTED TAKEOFF

  1. Landing attitude** – **Establish
  2. Collective lever** – **Raise as necessary to stop descent and cushion landing

After landing:

  1. Affected engine** – **Identify
  2. Single engine emergency shutdown** – **Perform

TRANSITION TO OEI - FLIGHT

  1. Collective lever** – **Adjust to OEI-limits or below
  2. Rotor speed** – **Trim to maximum
  3. Airspeed** – **Gain, 65 KIAS (VY)

After reaching safe altitude:

  1. Collective lever** – **Reduce to OEI MCP or below
  2. Affected engine** – **Identify
  3. Single engine emergency shutdown** – **Perform
  4. LAND AS SOON AS PRACTICABLE
20
Q

Single Engine Failure - Flight

A
  1. OEI flight condition** – **Establish
  2. Rotor speed** – **Trim to maximum
  3. Affected engine** – **Identify
  4. Single engine emergency shutdown** – **Perform
  5. LAND AS SOON AS PRACTICABLE
21
Q

Single Engine Failure - Approach

A
  1. Rotor speed** – **Trim to maximum
  2. Single engine landing procedure** – **Perform

After landing:

  1. Affected engine** – **Identify
  2. Single engine emergency shutdown** – **Perform
22
Q

Single Engine Emergency Shutdown

A
  1. Twist grip (affected engine**) – **Rotate slowly to IDLE, check indications, then to OFF

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:

  1. BLD HTG EMER/NORM sw – EMER
  2. BLD HTG rheostat – ON
23
Q

Engine Overspeed – Driveshaft Failure

A
  1. OEI flight condition** – **Establish
  2. Affected engine** – **Identify
  3. Single engine emergency shutdown** – **Perform
  4. LAND AS SOON AS PRACTICABLE
24
Q

Engine Overspeed – Governor Failure

A
  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:

  1. Affected engine** – **Identify
  2. Twist grip (affected engine)** – **Rotate towards IDLE until N2 and NRO stabilize in normal range and FLI needles match
  3. 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).

25
Q

EngineUnderspeed – Governor Failure

A
  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:

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

If no residual torque (affected engine) is available:

  1. 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).

26
Q

Compressor Stall

A
  1. Collective lever** – **Lower
  2. Engine instruments** – **Monitor
  3. Collective lever** – **Raise slowly

If compressor stall returns:

  1. Affected engine** – **Identify (TOT)
  2. Single engine emergency shutdown** – **Perform
  3. LAND AS SOON AS PRACTICABLE
27
Q

Droop Compensation Failure

A

Note

Avoid large collective lever changes.

  1. Collective lever** – **Maintain NRO within limits
  2. LAND AS SOON AS PRACTICABLE
28
Q

Engine Oil Temperature High

A
  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:

  1. LAND AS SOON AS PRACTICABLE

If engine oil temperature still remains above limit:

  1. Single engine emergency shutdown** – **Perform
  2. LAND AS SOON AS PRACTICABLE
29
Q

Double Engine Failure - Hover IGE

A
  1. Right pedal** – **Apply as necessary to stop yaw
  2. Landing attitude** – **Establish
  3. Collective lever** – **Raise as necessary to cushion landing
30
Q

Double Engine Failure - Flight

A

Autorotation - Perform

31
Q

Double Engine Emergency Shutdown

A

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:

  1. Both EMER OFF** **sw** – **Press
32
Q

Autorotation

A
  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

  1. Double engine emergency shutdown** – **Perform

AT APPROXIMATELY 100 FT AGL:

  1. Flare attitude – Establish (approx. 15o to 20o) to reduce forward speed and rate of descent; control NRO

AT APPROXIMATELY 8 – 12 FT AGL:

  1. Flare attitude – Reduce to approx 7o
  2. Heading – Maintain
  3. Collective lever – Raise to stop descent and cushion landing
  4. BAT MSTR** **sw** – **OFF

Note

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

33
Q

Cabin Fire

A

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** – **Eliminate, open sliding doors, windows and vents (fresh air)
  6. LAND AS SOON AS POSSIBLE

After landing:

  1. Double engine emergency shutdown** – **Perform
34
Q

Electrical Fire/Short Circuit

A

On Ground :

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

In Flight:

  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
35
Q

Tail Rotor Drive Failure - Hover

A

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:

  1. Double engine emergency shutdown** – **Perform

Hover Out of Ground Effect:

  1. Collective lever** – **Reduce as required to stop rotation

If height permits:

  1. 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:

  1. Both Twist grips** – **Rotate to IDLE
  2. Collective lever** – **Raise to stop descent and cushion landing

After landing:

  1. Double engine emergency shutdown** – **Perform
36
Q

Tail Rotor Drive Failure/Fixed-pitch Tail Rotor Control Failure - Forward Flight

A
  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

  1. Shallow approach with nose left** – **Perform

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

  1. Airspeed** – **Reduce close to the ground until nose is aligned with the flight direction
  2. Landing** – **Perform

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

  1. Airspeed** – **Increase
  2. Approach** – **Abort, climb to sufficient height for autorotation

Note

Headwind is advantageous

  1. 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

37
Q

Pedal Vibrations

A

LAND AS SOON AS POSSIBLE

LUH-72 Lakota Helicopter (2 decks)

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