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B777 > Decompression > Flashcards

Decompression Flashcards

1
Q

What are the subjective signs of decompression?

A
  1. Difficulty in breathing
  2. Sinuses and ears may feel blocked
  3. A cold sensation
  4. Abdominal discomfort
  5. Difficulty speaking
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2
Q

What are the objective signs of decompression?

A
  1. A loud bang
  2. A rush of air
  3. Rapid drop in temperature
  4. Fog in the cabin
  5. Cabin filled with dust, debris and loose objects
  6. Increase in noise level
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3
Q

What is the oxygen use procedure ABOVE 10,000ft, for passengers and cabin crew?

A

Cabin crew: use the portable oxygen bottle for themselves.
Passengers: Use the cabin drop-down oxygen masks.

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4
Q

What is the oxygen use procedure BELOW 10,000ft for passengers and cabin crew?

A

Cabin crew: Use the portable oxygen bottle for therapeutic use.
Passengers: If oxygen is available, passengers may choose to continue using drop-down oxygen masks.

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5
Q

What are cabin crew actions during rapid decompression?

A
  1. Put on the nearest drop down oxygen mask
  2. Sit down and secure yourself
  3. Tilt, wedge and apply brakes to the cart when during service.
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6
Q

What is decompression?

A

Loss of cabin pressure, resulting in the cabin equality with the actual outside altitude.

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7
Q

During decompression, when will the oxygen masks drop down?

A

14,000 ft automatically.

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8
Q

What is hypoxia?

A

Lack of oxygen in the bodies cells and tissues, leading to delusion.

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9
Q

Where are oxygen masks located?

A

PSU - passenger service unit
LSU - passenger service unit
SU - service units
1. passenger seats (PSU)
2. lavatories (LSU)
3. CRC (SU)
4. flight deck

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10
Q

Decompression alert?

A

If the cabin altitude exceeds 10,000 ft,
1. Cabin lights come on full bright and five HI chimes sound.
2. The seat belt sign also illuminates.

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11
Q

What to do if there is an issue with oxygen mask deployment?

A
  1. Do not attempt to stow the dropped oxygen masks.
  2. Check if the masks have been pulled down and if activation pin is removed.
  3. It must then be logged into the DEFECT LOG BOOK.
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12
Q

Ionisation smoke detector colour when operating?

A

Green.

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13
Q

Ionisation smoke detector colour when smoke has been detected?

A

RED.

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14
Q

Colour of the photoelectronic smoke detector when it is operating?

A

GREEN STEADY LIGHT.

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15
Q

Colour of the photoelectronic smoke detector when maintenance is required?

A

GREEN FLASHING LIGHT.

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16
Q

Colour of the photoelectronic smoke detector when the detector has failed?

A

RED FLASHING LIGHT.

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17
Q

Colour of the photoelectronic smoke detector when smoke is detected?

A

RED STEADY LIGHT.

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18
Q

What is the pre-flight check for both photoelectronic and ionisation smoke detectors?

A
  1. GREEN steady power indicator light is ON.
  2. The smoke detector has not been tampered with or obstructed.
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19
Q

How do the photoelectronic and ionisation smoke detectors operate when smoke is detected?

A
  1. RED alarm indicator light on the smoke detector illuminates.
  2. Alarm horn ON inside the lavatory.
  3. Flashing amber call light on the MCL closest to the affected lavatory.
  4. Flashing amber lavatory call light above the affected lavatory door.
  5. Continuous HI-LO chime sounds in the cabin near the affected lavatory.
  6. A SMOKE detected window is displayed on the CSCP and CACP indicating the affected lavatory.
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20
Q

How to reset the smoke detection system?

A

The flashing amber call light on the MCL is switched off.
- Horn alarm is silenced
- Flashing amber lavatory call light is switched off
- CSCP and CACP’s SMOKE DETECTED window is no longer displayed.

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21
Q

False alarm activation of the photoelectric smoke detector:

A

Can be silenced by pressing the flashing amber lavatory call light above the affected lavatory door.
- It will reset itself after 30 seconds.

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22
Q

Where is the lavatory automatic fire extinguisher?

A

It is installed above the waste bin in the compartment under the sink area.

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23
Q

What colour are the dots on the temperature indicator strip located inside the waste bin?

A

Grey.

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24
Q

What is the pre-flight check of the fire extinguisher in the lavatories?

A
  • The dots on the temperature indicator strip are grey in colour.
  • The waste burn flap access door are in the closed position.
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25
Q

When the fire extinguisher is discharged, what indications can be observed?

A
  • The heat activated nozzle tips change to an aluminium colour. Both nozzles discharge towards the waste bin container.
  • The grey dots on the temperature indicator strip will turn black when exposed to heat in excess of 79 degrees.
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26
Q

What must happen when the extinguisher has been discharge?

A
  • The lavatory must be locked, monitored and should not be used for the remainder of the flight.
  • The extinguisher is not linked to the aircraft communication system. There are no alerts that the extinguisher has activated.
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27
Q

Where is the lavatory water cooler?

A
  • Behind the mirror.
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28
Q

What will happen if there is a malfunction of the cool water supply?

A

A RED caution light will illuminate.

29
Q

Rigid lavatory door latch failure.

A

Open the lavatory rigid door in the event of a door latch failure:
1: Slide a flat object to the side of the door latch receiver flap:
2. pry the door latch receiver flap forward and outward:
3. Pull on the door handle at the same time as lifting on the door latch receiver flap.

30
Q

Bi-folding door removal

A
  1. Unlock the door
  2. Release the upper and lower pivot shafts on the door
  3. Pull the top pivot shaft down and over
  4. Lift the bottom pivot shaft up and over.
  5. Pull the door out at the bottom.
  6. Drop the door down and away from the lavatory.
31
Q

How many ashtrays are there in each lavatory?

A

Two ashtrays, located on either side of the lavatory door.

32
Q

What is the pre-flight check of the lavatory ashtray?

A

Correct quantity and securely fitted on the lavatory door.

33
Q

Where are the water shut off valves located?

A

In the galleys and lavatories.

34
Q

Where are water shut off valves located in the galleys?

A

Adjacent to the ovens.

35
Q

Where are the water shut off valves located in the lavatories?

A

They are located behind the mirror or the paper cup dispenser.

36
Q

At what temperature will the lavatory water shut-off valve automatically switch off?

A

48 degrees.

37
Q

Where is the master shut-off switch located on the B777-200?

A

Above L2 door and on L4 CSP.

38
Q

Where does the L4 CSP shut off the water supply?

A

For the entire aircraft.

39
Q

Where does the L2 door shut off the water supply?

A

In the area forward of LR2 doors.

40
Q

Where is the master shut off. switch located on the B777-300?

A

Above L2 + L5 door or above L2 door and on the L5 CSP or only on the L5 CSP.

41
Q

Where is the evacuation signalling system located?

A

The flight deck centre console and all crew switch panels above the jump seat at every crew station.

42
Q

How to activate the evacuation signalling system?

A

lift the plastic guard and press the EVAC command switch once.

43
Q

When the evacuation signalling system is activated what signs will occur?

A

There will be a flashing RED EVAC light, an audio alert.
When the horn shut off button is pressed, it will silence the audio alert at that station only.
- The EVAC command switch illuminates only any the station where the switch is pressed.

44
Q

How to reset the evacuation signalling system?

A

The system can be reset only from the station that initiated the evacuation signal by pressing the EVAC COMMAND switch.

45
Q

When will the emergency lighting system illuminate?

A

In the event of normal electrical power failure, interior and exterior.

46
Q

Where will the emergency lighting system illuminate?

A
  1. The ceiling aisle and ceiling cross aisle lights area
  2. Emergency escape path lighting inboard asile seats
  3. luminous exits signs
  4. exits lights
47
Q

Where are the emergency lights on the exterior of the aircraft?

A
  • The fuselage emergency lights are located aft of each door.
  • Slide integral lights illuminate on each side of the raft (they illuminate after slide deployment)
48
Q

Under what conditions will the emergency lighting system illuminate automatically?

A

Only when the flight deck switch is in the ARMED position.

49
Q

Where can the emergency lighting system be manually activated?

A

In the flight deck and the L1 crew panel switch CSP.

50
Q

How long with the emergency lights illuminate for?

A

Approx 15 minutes.

51
Q

What to do if the EPAS fails?

A

Push the door open and ask ABP’s for assistance, check the related slide is fully deployed and inflated before evacuating passengers.

52
Q

Should the slide raft fail to inflate automatically at LR1,2,4 + 5, what would you actions be?

A

Pull and discard the red manual handle located on the RHS of the girt bar.

53
Q

Should the escape slide fail to inflate automatically (if the barber pole is not visible), what would your actions be?

A

Use the red manual inflation handle located in the upper aft section of the door frame. To manually inflate the escape slide: pull down the cover to access the red manual inflation handle. Pull down the red manual inflation handle.

54
Q

How do you disconnect the rafts on the B777 200/300?

A

Lift the flap, pull the white release handle and cut the mooring line.

55
Q

How can the full inflation of the escape slides be confirmed?

A

The escape slide readiness is indicated by the full inflation the barber pole at the end of the ramp.

56
Q

Can the LR3 doors be used during an emergency ditching?

A

Yes, in the disarmed position as secondary exits.

57
Q

In ditching emergencies, LR3 doors can be used as secondary exits in which a life line can be used. The following are the correct steps on how to operate the life line:

A

Ensure the door is DISARMED. Remove life line from upper section of the door frame. Attach the lifeline to the hook - the lifeline attachment point - on the leading edge of the wing, with the assistance of ABP. Direct passengers to hold onto the life line, walk onto the wing and board the nearest raft.

58
Q

How do you install the canopy on the B777 slide raft fitted with support tubes?

A

Deploy the canopy, place over each support tube and secure it to the velcro patch, using the lanyard provided, tie the canopy to each support tube tie down loop. Assemble the two metallic parts of each centre mast together. Fix on one support shoe, attach the support shoe end of the mast to the Velcro patch labelled mast location on the slide raft and secure it with the lanyard. The the canopy sides to each upper chamber tie down loop.

59
Q

How to open the flight deck sliding windows?

A
  • press the window lock release button
  • move the window lock lever AFT to open position
  • rotate the window crank handle to move the window to full open position.
60
Q

How to close the flight deck sliding windows?

A
  • Rotate the window crank handle to move the window to the closed position.
  • Press the window lock lever release button and rotate it forward to the fully locked position.
  • Ensure the orange indicator is nit visible below the release button.
61
Q

What are the classifications of exits for evacuation on the b777-300 and 200 for land evacuation?

A

Primary exits - all cabin doors
Secondary exits - N/A
Auxiliary exits - Flight deck sliding windows.

62
Q

What are the classifications of exits on the b777-300 for ditching?

A

Primary exits - LR1, LR2, LR4 and LR5
Secondary exits - LR3 doors
Auxiliary exits - N/A

63
Q

What are the classifications of exits on the b777- 200 for ditching?

A

Primary exits - All cabin doors
Secondary exits N/A

64
Q

When will the slide raft automatically deploy?

A

When the door is opened in the armed position.

65
Q

What to do if the slide raft does not inflate automatically?

A

Pull and discard the red manual inflation handle located on the RIGHT HAND SIDE of the girt bar.

66
Q

How to disconnect the slide raft?

A
  • Lift the flap
  • Pull the white release handle
  • Cut the mooring line
67
Q

What does the re-entry strap do?

A

Help re-entry onto the aircraft after evacuation.
- Avoid the free fall of the slide raft when disconnect from the aircraft.

68
Q

Slide raft capacity?

A

Between 60-80

69
Q
A

B777 (5 decks)

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