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Aviation > CH-47: Emergency Procedures KTK > Flashcards

CH-47: Emergency Procedures KTK Flashcards

1
Q

Autorotate

A
  • Adjusting the flight controls as necessary to establish an autorotational descent and landing.
  1. Thrust CONT lever - Adjust as required to maintain NR
  2. Pedals - Adjust as required
  3. Cyclic - Adjust as required
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2
Q

EMER ENG Shutdown

A
  • Engine shutdown without delay.
  • Engine shutdown in flight is usually not an immediate action item unless a fire exists.
  • Before executing an engine shutdown, identify the affected engine by checking indications of TQ, NR, NG, PTIT, engine oil pressure, and the ENG 1 (2) FAIL warning.
  1. ENG COND Lever - STOP
  2. FIRE PULL handle - Pull as required
  3. FIRE PULL handle - Twist clockwise or counterclockwise as required (engine fire only)
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3
Q

Abort Start

A
  • Engine shutdown to prevent PTIT from exceeding limits or whenever abnormal operation is indicated.
  • If high PTIT was indicated, the engine must be motored to decrease PTIT below 260°C.
  1. ENG COND Lever - STOP
  2. ENG START Switch - Motor (if high PTIT is indicated)
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4
Q

Emergency Warning Signals and Exits

A
  1. Prepare for ditching, or crash landing - 3 short rings
  2. Water or ground contact - Sustained ring
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5
Q

Engine Hot Start

A
  1. ABORT START

NOTE

Immediately alternate motoring engines, until rotors are stopped, to reduce the possibility of engine residual fire.

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6
Q

Residual Fire During Shutdown

A
  • Caused by residual fuel igniting in the combustion chamber
  1. ABORT START
  2. FIRE PULL handle (affected engine) - Pull
  3. FIRE PULL handle - Twist clockwise or counterclockwise as required (engine fire only)
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7
Q

Engine Compartment/APU/Fuselage/Electrical Fire - Ground

A
  1. EMER ENG SHUTDOWN
  2. APU switch** - **OFF
  3. BATT switch** - **OFF
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8
Q

In-Flight Fire Procedures

A
  1. LAND AS SOON AS POSSIBLE
  2. CABIN HEATER BLOWER circuit breaker (No. 2 PDP/C31) - Pull
  3. Cockpit windows - Closed
  4. SMOKE AND FUME ELIMINATION (as required)

After landing:

  1. EMER ENG SHUTDOWN
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9
Q

APU Fire - Flight

A
  1. APU switch - OFF
  2. IN-FLIGHT FIRE PROCEDURES - Perform
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10
Q

Engine Fire - Flight

A
  1. IN-FLIGHT FIRE PROCEDURES - Perform
  2. Engine fire - Confirm
  3. EMER ENG SHUTDOWN (affected engine)
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11
Q

Electrical Fire - Flight

A

WARNING

A dual engine flameout may occur if both generator switches are turned off above 6,000 feet PA. All fuel boost pumps will be inoperative.

  1. IN-FLIGHT FIRE PROCEDURES - PERFORM
  2. A/S - Below 100 KCAS or Vne, whichever is slower
  3. GEN 1 and GEN 2 switches - OFF

After landing:

  1. BATT switch - OFF
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12
Q

Smoke and Fume Elimination

A
  1. A/S - Above 60 KCAS
  2. Pilot’s sliding window - Open
  3. Helicopter attitude - Yaw left 1/2 - 1 ball width on inclinometer
  4. Upper half of main cabin door - Open
  5. RAMP EMER switch - As required
  6. Cargo loading ramp - As required
  7. Copilot’s sliding window - Closed
  8. NVG curtain - Open (if applicable)
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13
Q

High Speed Straight Ahead Descent

A
  • This procedure produces the highest R/D, but also produces high airspeeds which must be dissipated prior to landing.
  1. NR: 104%
  2. A/S: 130-150 KCAS
  3. Recovery: at/above 600 ft AGL (decel to 75-85 KCAS)
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14
Q

Out-of-Trim Descent

A

This procedure places the helicopter in a high R/D and allows simultaneous execution of smoke and fume elimination procedure. In addition, it allows good landing area predictability.

  1. NR: 104%
  2. A/S: 100 KCAS
  3. Trim: 1 ball to the right (left pedal), bank angle 8-10° right with 0 turn rate
  4. Recovery: at/above 600 ft AGL (decel to 75 KCAS)
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15
Q

Low Speed Maneuvering Descent

A

Maneuvering the helicopter in steep turns as described below should allow the pilot to fly the helicopter over his intended area during the descent, observe the area of intended touchdown, and make adjustments as required.

  1. NR: 102%
  2. A/S: 75-90 KCAS
  3. Bank angle: up to 60° = desired rate of descent
  4. Recovery: at/above 600 ft AGL
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16
Q

Autorotative Landing

A
  • Maintain speed at or above the minimum R/D airspeed in autorotation with cyclic.
  • 50-75 ft AGL, apply aft cyclic as necessary, not to exceed 20° nose-high, to initiate a smooth deceleration.
  • Maintain NR below 108% by adjusting thrust as necessary.
  • Do not allow NR to decay below 91% prior to touchdown.
  • At approximately 15 ft AGL, apply thrust to slow R/D.
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17
Q

Ditching - Power Off

A
  1. AUTOROTATE
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18
Q

Ditching - Power On

A
  1. Land in the water away from personnel
  2. EMER ENG SHUTDOWN
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19
Q

Landing in Trees - Power On

A
  1. Approach to a hover - 5 to 10 feet above tree level
  2. EMER ENG SHUTDOWN
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20
Q

Landing in Trees - Power Off

A
  1. AUTOROTATE
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21
Q

Minimum Rate of Descent - Power Off

A
  • The power off minimum R/D is attained at an airspeed of approximately 80 KCAS and 100% NR.
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22
Q

Maximum Glide Distance - Power Off

A
  • The maximum glide distance is attained at an indicated airspeed of 105 KCAS or Vne, whichever is slower, and 100% NR.
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23
Q

Dual Engine Failure - Low Altitude / Low Airspeed

A
  • When both engines fail at low altitude and low airspeed, sufficient altitude is not available to increase NR.
  • Establish the best autorotaional airpseed, jettison external cargo (if applicable), and decelerate effectively prior to touchdown.
  • Initial thrust control lever adjustment will vary from no reduction at 0 knots airpseed below 20 feet to full reduction at higher airpseeds and altitudes.
  • Attempt to maintain at least 96% NR.
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24
Q

Dual Engine Failure - Cruise

A
  1. AUTOROTATE
  2. External cargo - Jettison
  3. FLT DIR CPLR - Uncouple
  4. DAFCS modes - OFF
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25
Q

Single Engine Failure - Low Altitude / Low Airspeed / Cruise

A
  1. Thrust CONT lever - Adjust as required to maintain NR
  2. External cargo - Jettison as required
  3. FLT DIR CPLR - Uncouple
  4. DAFCS modes - Off

If continued flight is possible:

  1. LAND AS SOON AS PRACTICABLE
  2. EMER ENG SHUTDOWN (when conditions permit)
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26
Q

ENG1 FADEC or ENG2 FADEC Caution

A
  1. FADEC INC/DEC switch (affected engine) - Match TQs as required
  2. Reduce rate of Thrust CONT lever changes
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27
Q

ENG1 FADEC and ENG2 FADEC Cautions

A
  1. FADEC INC/DEC switch - Adjust to 100% NR, match TQs
  2. Recue rate of Thrust CONT lever changes
  3. LAND AS SOON AS PRACTICABLE
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28
Q

Engine Fluctuations or Excessive Torque Splits Without ENG1 or ENG2 FADEC Caution

A
  1. LOAD SHARE switch - PTIT

If engine power fluctuations are not corrected:

  1. LAND AS SOON AS POSSIBLE

After landing:

  1. LOAD SHARE switch - TRQ
  2. No. 1 Engine FADEC switch - REV

If engine power fluctuations are not corrected:

  1. No. 1 Engine FADEC switch - PRI
  2. No. 2 Engine FADEC switch - REV

If engine power fluctuations are not corrected:

  1. No. 2 Engine FADEC switch - PRI
29
Q

REV1 FAIL and/or REV2 FAIL Caution (without) Associated ENG1/ENG2 FADEC Caution

A

CAUTION

Do not manually select reversionary mode on affected engine as uncommanded power changes may occur.

30
Q

REV1 FAIL or REV2 FAIL Caution (with) Associated ENG1/ENG2 FADEC Caution

A
  • The FADEC of the non-malfunctioning engine will attempt to maintain 100% NR. If engine shutdown is required, positively identify the affected engine by observing the ENGINE INSTRUMENTS page.

If engine power is required for flight:

  1. LAND AS SOON AS POSSIBLE
  2. EMER ENG SHUTDOWN as required

If engine power is not required for flight:

  1. EMER ENG SHUTDOWN as required
  2. LAND AS SOON AS PRACTICABLE
31
Q

REV1 and REV2 FAIL Caution(s) (with) Associated ENG1/ENG2 FADEC Caution

A
  1. LAND AS SOON AS POSSIBLE
  2. EMER ENG SHUTDOWN as required
32
Q

Engine Transmission Clutch Failure to Engage

A
  1. ENG COND lever (affected engine) - STOP

When NG reaches zero (0):

  1. ENG COND lever (engaged engine) - STOP
33
Q

Engine Shutdown - Complete Electrical Failure

A
  1. FUEL VALVE No. 1 and No. 2 Engines - Close
  2. Normal Shutdown - Perform
34
Q

Engine Shutdown - Condition Lever Failure

A
  1. FIRE PULL handle (affected engine) - Pull
  2. Normal shutdown - Perform
35
Q

Engine Oil Low Quantity / High Temperature or Low Pressure

A
  • ENG 1(2) OIL HOT caution - oil temp > 149°C
  • ENG 1(2) OIL PRESS LO - pressure below required for NG
  • ENG 1(2) OIL PRESS HI - pressue > 90 psi

If engine power is required for flight:

  1. LAND AS SOON AS POSSIBLE

If engine power is not required for flight:

  1. EMER ENG SHUTDOWN (affected engine)
  2. LAND AS SOON AS PRACTICABLE
36
Q

ENG1 CHIPS or ENG2 CHIPS Caution

A

If engine power is required for flight:

  1. LAND AS SOON AS POSSIBLE

If engine power is not required for flight:

  1. EMER ENG SHUTDOWN (affected engine)
  2. LAND AS SOON AS PRACTICABLE
37
Q

ENG1 XMSN or ENG2 XMSN Warning

A
  1. EMER ENG SHUTDOWN (affected engine)
  2. Affected ENG XMSN** - **Check
  3. LAND AS SOON AS POSSIBLE
38
Q

Transmission Chip Caution / Indicators

A

XMSN CHIPS Caution (FWD, COMB, AFT, or AFT SHAFT)

  1. LAND AS SOON AS POSSIBLE
39
Q

FWD, COMB (LH or RH), or AFT DEBRIS SCREEN Indicator

A
  1. RESET/GND/TEST switch** - **RESET

If indicator does not reset or trips again:

  1. LAND AS SOON AS POSSIBLE
40
Q

ENG1 or ENG2 XMSN DEBRIS SCREEN Indicator

A
  1. RESET/GND/TEST switch** - **RESET

​If indicator does not reset and engine power is required:

  1. LAND AS SOON AS POSSIBLE

If indicator does not reset and engine power is not required:

  1. EMER ENG SHUTDOWN (affected engine)
  2. LAND AS SOON AS PRACTICABLE
41
Q

AFT XMSN PRESS LO or AFT SHAFT PRESS LO

A
  1. LAND AS SOON AS POSSIBLE
42
Q

ENG1 XMSN PRESS LO or ENG2 XMSN PRESS LO

A

Engine power is required:

  1. LAND AS SOON AS POSSIBLE

​Engine power is not required:

  1. EMER ENG SHUTDOWN (affected engine)
  2. LAND AS SOON AS PRACTICABLE
43
Q

FWD XMSN PRESS LO or COMB XMSN PRESS LO

A
  1. Altitude - Descend to minimum safe altitude
  2. A/S - 100 KCAS or Vne, whichever is slower
  3. LAND AS SOON AS PRACTICABLE
44
Q

XMSN PRESS LO and XMSN AUX PRESS LO Cautions (Same Transmission)

A
  1. LAND AS SOON AS POSSIBLE
45
Q

XMSN AUX PRESS LO Caution

A

MAIN XMSN (FWD, COMB, or AFT):

Main transmission oil pressure and temperature are abnormal:

  1. LAND AS SOON AS POSSIBLE

Main transmission oil pressure and temperature are normal:

  1. LAND AS SOON AS PRACTICABLE
46
Q

XMSN OIL HOT Caution - FWD or COMB

A
  1. LAND AS SOON AS POSSIBLE
47
Q

XMSN OIL HOT Caution - AFT

A
  1. LAND AS SOON AS POSSIBLE
  2. Electrical load** - **Reduce as much as possible
48
Q

ENG1 XMSN OIL HOT or ENG2 XMSN OIL HOT

A

Engine power is required:

  1. LAND AS SOON AS POSSIBLE

​Engine power is not required:

  1. EMER ENG SHUTDOWN (affected engine)
  2. LAND AS SOON AS PRACTICABLE
49
Q

Fuel Venting

A
  1. AUX FUEL PUMP switch(es) (affected side) or ERFS II/RSERFS pump switch(es) (if installed)** - **OFF

When 1,000 pounds of fuel remains:

  1. AUX FUEL PUMP switch(es) (affected side) or ERFS II/RSERFS (if installed) - ON

When tank quantity reaches 1,600 pounds:

  1. AUX FUEL PUMP switch(es) (affected side) or ERFS II/RSERFS (if installed) - OFF
  2. Repeat Steps 2 and 3 until auxiliary tanks are empty
50
Q

ENG1 FUEL PRESS LO or ENG2 FUEL PRESS LO Caution

A

If both main tank fuel pumps fail, fuel will be drawn from the main tanks as long as the helicopter is operated below 6,000 feet PA.

  1. XFEED Switch** - **OPEN (above 6,000 ft PA)
  2. FUEL PUMP(S) Circuit Breakers - Check in

Pump(s) are operational:

  1. XFEED Switch - CLOSE

Pump(s) are not operational:

  1. FUEL PUMP Switch(es) (inoperative pump(s)) - OFF
51
Q

L FUEL LVL or R FUEL LVL Caution

A

WARNING

Failure of main tank fuel boost pumps with the crossfeed open and a fuel low condition may result in a dual engine flameout. Nose low attitudes should be avoided. Nose low attitudes in excess of 5° may cause fuel starvation prior to the fuel low caution activating.

  1. Fuel quantity - Check
  2. XFEED switch - As required
52
Q

L FUEL LVL or R FUEL LVL and ENG1 or ENG2 FUEL PRESS LO (Opposite Sides) Cautions

A
  1. XFEED Switch - CLOSE
  2. LAND AS SOON AS POSSIBLE
53
Q

#1 HYD FLT CONTR and/or #2 HYD FLT CONTR Caution(s)

A
  1. PWR XFER 1 and 2 switches** - **ON
  2. LAND AS SOON AS POSSIBLE
  3. MAINTENANCE PANEL - Monitor
54
Q

UTIL HYD SYS Caution

A

Fluid loss is evident:

  1. Isolation switch** (affected subsystem) - **OFF
  2. LAND AS SOON AS POSSIBLE

High fluid temperature is evident:

  1. LAND AS SOON AS POSSIBLE

Fluid loss is not evident:

  1. APU - Start
  2. LAND AS SOON AS PRACTICABLE
  3. MAINTENANCE PANEL - Monitor
55
Q

HYD PUMP FAULT Indicating Light

A
  1. LAND AS SOON AS PRACTICABLE
  2. MAINTENANCE PANEL - Monitor

If temperature or pressure are abnormal or an abnormal vibration occurs:

  1. LAND AS SOON AS POSSIBLE
56
Q

FWD LCTA FAIL and/or AFT LCTA FAIL Caution(s)

A

If in AUTO mode:

  1. A/S** - **Adjust
  2. CYCLIC TRIM circuit breakers - IN
  3. CYCLIC TRIM switch - MANUAL
  4. FWD and AFT CYCLIC TRIM switches - Adjust for A/S

If LCT operation is not indicated:

  1. FWD and AFT CYCLIC TRIM switches - RET for 30 seconds before landing

If in MANUAL mode:

  1. A/S** - **Adjust
  2. CYCLIC TRIM circuit breakers - In
  3. CYCLIC TRIM switch - AUTO

If LCT operation is not indicated:

  1. CYCLIC TRIM switch - MANUAL
  2. FWD and AFT CYCLIC TRIM switches - RET for 30 seconds before landing
57
Q

Single AFCS Failure - Both Selected

A
  1. A/S** - **Below 100 KCAS or Vne, whichever is slower
  2. Altitude** - **Adjust as required
  3. AFCS SEL switch - Isolate defective system

If system is not isolated:

  1. AFCS SEL switch - OFF
58
Q

Dual AFCS Failure

A
  1. AFCS SEL switch** - **OFF

If IMC:

  1. Exit IMC as soon as practicable
59
Q

Differential Airspeed Hold (DASH) Failure

A
  • Avoid nose high attitudes. Maximum airspeed with one system failed is 100 KCAS.
60
Q

Altitude Hold Failure

A
  • An altitude hold failure will be recognized by a RALT FAIL caution, loss of altitude hold, a creeping thrust control lever, a rapid change in altitude, or TQ.
  1. Thrust** CONT lever - **Adjust as required
  2. FLT DIR CPLR - Uncouple (or deselect vertical modes)
  3. DAFCS Altitude Modes - OFF
61
Q

Thrust CCDA Failure

A

If IMC:

  1. Thrust** CONT Lever - **Adjust (slip if required)
  2. MFD-FD Select Page - Deselect Vertical Mode

If VMC:

  1. Thrust** CONT Lever - **Adjust (slip if required)
  2. A/S - Below 100 KCAS or Vne, whichever is slower
  3. AFCS SEL Switch - OFF then BOTH

If the Thrust CCDA is restored:

  1. FLT DIR CPLR - As required

If the Thrust CCDA is not restored:

  1. MFD-FD Select Page - Deselect Vertical Mode
  2. FLT DIR CPLR - As required
62
Q

#1 GEN FAIL or #2 GEN FAIL Caution

A

If bus tie does not exist:

  1. GEN switch** - **OFF/RESET, then ON

If the power is not restored:

  1. LAND AS SOON AS POSSIBLE

If bus tie does exist:

  1. GEN switch - OFF/RESET, then ON

If power is not restored:

  1. Electrical Load - Reduce as required
  2. LAND AS SOON AS PRACTICABLE
63
Q

Dual Generator Failure

A

If both generators fail:

  1. LAND AS SOON AS POSSIBLE
  2. APU** - **Start
  3. APU GEN switch** - **ON

If unable to land and power is not restored:

  1. A/S - Below 100 KCAS or Vne, whichever is slower
  2. Altitude - Below 6,000 ft PA
  3. AFCS - OFF
  4. PDPs - Check circuit breakers and place gang bars down
  5. Each GEN switch - OFF/RESET, then ON
64
Q

#1 RECT OFF or #2 RECT OFF Caution

A

DC bus tie has not occurred:

  1. LAND AS SOON AS POSSIBLE
  2. PDPs - Check

DC bus tie has occurred:

  1. PDPs - Check
  2. Electrical Load - Reduce as required
  3. LAND AS SOON AS PRACTICABLE
65
Q

#1 RECT OFF and #2 RECT OFF Cautions

A

If both transformer rectifiers fail:

  1. LAND AS SOON AS POSSIBLE

If unable to land:

  1. A/S - Below 100 KCAS or Vne, whichever is slower
  2. Altitude - Below 6,000 ft PA
  3. AFCS - OFF
  4. PDPs - No.1 and No.2 DC CROSS-TIE circuit breakers - OUT
  5. PDPs - No.1 and No.2 XFMR RECT circuit breakers - IN
  6. DC equipment - OFF or pull C/Bs on essential, switched BATT, and BATT busses
66
Q

CDU1 and CDU2 FAIL Advisories

A
  1. Pull appropriate CDU1 and CDU2 circuit breakers
  2. Wait 15 seconds, then reset the CDU1 and CDU2 circuit breakers

If CDU1 and CDU2 still indicate a failure:

  1. LAND AS SOON AS POSSIBLE
67
Q

Weapon Misfire

A
  1. Weapon** - **Point at safe area
  2. Bolt** - **Retract, ensure cartridge ejectes
  3. If cartridge does not eject - Perform remedial action IAW appropriate TM
68
Q

Runaway Gun

A
  1. Break the ammunition feed belt

Aviation (6 decks)

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