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Boeing 747 > Limitations > Flashcards

Limitations Flashcards

1
Q

Maximum Differential Pressure

A

9.4 psi

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2
Q

Maximum Allowable Cabin Pressure Differential For Takeoff And Landing

A

0.11 psi

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3
Q

When is the use of aileron trim prohibited?

A

When the autopilot is engaged.

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4
Q

Minimum Altitude to Engage Autopilot: After Takeoff and Initial Climb

A

500 Feet

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5
Q

Minimum Altitude to Disengage Autopilot: Non-precision Approaches

A

50 Feet below MDA

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6
Q

Minimum Altitude to Disengage Autopilot: Single Channel ILS Approaches

A

100 feet AGL

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7
Q

Minimum Altitude to Disengage Autopilot: Autoland (Two or Three Autopilots)

A

Touchdown/Rollout

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8
Q

Maximum Autoland Glide Slope Angle

A

3.25 degrees

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9
Q

Minimum Autoland Glide Slope Angle

A

2.5 degrees

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10
Q

At what flap setting may you make an Autoland?

A

Flaps 25 or 30

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11
Q

Autoland - Maximum Wind Component: Headwind

A

25 Knots

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12
Q

Autoland - Maximum Wind Component: Tailwind

A

10 Knots

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13
Q

Autoland - Maximum Wind Component: Crosswind

A

25 Knots

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14
Q

Autoland - Maximum Wind Component: CAT II/III

A

15 Knots

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15
Q

Do not use HF Radios when?

A

During refueling operations

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16
Q

When is the center VHF radio not approved for ATC voice communications?

A

With an operational ACARS system.

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17
Q

What is the Desired Oxygen Pressure for the Crew System? (Land and Ocean)

A
  • 950 psi (Land)
  • 1,200 psi (Ocean)
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18
Q

What is the Desired Oxygen Pressure for the Passenger System?

(Land and Ocean)

A

1,200 psi (Land)

1,200 psi (Ocean)

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19
Q

What type of engine is on the 747-400?

A

GE CF6-80C2B5F

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20
Q

What is the 747-400 Engine Thrust?

A

62,100 Lbs

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21
Q

Maximum Thrust Is Limited To How Many Minutes?

A

5 Minutes

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22
Q

Minimum Oil Pressure

A

10 psi

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23
Q

Maximum Engine Oil Temperature Continuous

A

160° C

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24
Q

Maximum Engine Oil Temperature for 15 Minutes

A

160° C to 175° C

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25
Q

Maximum Engine RPM Limits (%)

N1

A

117.5

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26
Q

Maximum Engine RPM Limits (%)

N2

A

112.5

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27
Q

Maximum Engine EGT Limits

Start

A

750°C

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28
Q

Maximum Engine EGT Limits

Takeoff

A

960°C

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29
Q

Maximum Engine EGT Limits

Continuous

A

925°C

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30
Q

When must engine ignition be on continuous?

A
  • Heavy Rain
  • Severe Turbulence
  • Volcanic Ash
  • Icing Conditions (only if nacelle anti-ice or its Auto feature is inoperative)
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31
Q

What fuels are approved for the

747-400?

A
  • Jet A, A1, A50
  • Jet B
  • JP4, JP5, JP8
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32
Q

Reverse Thrust Limitations?

A
  • Reverse thrust in flight is prohibited.
  • Backing up of aircraft is prohibited.
33
Q

Fuel Jettison Flap Limitations?

A

Do not extend or retract the flaps between position 1 and 5 during fuel jettison.

34
Q

What are the available fuel densities?

A

2.72 -3.21 Kgs/gal

35
Q

If fuel density is below ____ what is the restriction?

A

2.92 Kgs/gal

Gross weight is limited

36
Q

If CWT fuel is required, what is the minimum amount?

A

1,800 Kgs prior to engine start

37
Q

Does the CWT Fuel Quantity Indication System have to be operative to dispatch with CWT fuel?

A

Yes

38
Q

When is LNAV or VNAV not to be used?

A

Below transition altitude or level when QFE is used.

39
Q

QFE altitude reference for the PFDs must be selected on the CDU Approach Reference page when?

A

Whenever QFE is used instead of QNH

40
Q

What are the approved Operations for the 747-400?

A
  • Visual (VFR)
  • Instruments (IFR)
  • Icing Conditions
  • Extended Overwater
41
Q

Do not extend flaps above what altitude?

A

20,000 Feet

42
Q

When should the speedbrakes not be used?

A

With flaps extended past 20

43
Q

Flight Maneuvering Load Acceleration Limits:

Flaps Up

A

+2.5 to -1.0

44
Q

Flight Maneuvering Load Acceleration Limits:

Flaps Down

A

+2.0 – 0.0

45
Q

Ground Wind Limits for all Doors:

Opening or closing

A

40 Kts

46
Q

Ground Wind Limits for all Doors:

Open

A

65 Kts

47
Q

Maximum Pressure Altitude

Takeoff and Landing

A

10,000’

48
Q

Maximum Operating Altitude

A

45,100’

49
Q

Maximum % Runway Slope

A

+/- 2%

50
Q

Slush or Standing Water Limits

Takeoff

A

1/2”

51
Q

Slush or Standing Water Limits

Landing

A

1”

52
Q

When must nacelle anti-ice be ON?

A

During all engines-running ground operations when icing conditions exist.

53
Q

When should you NOT use the anti-ice system?

A

OAT or TAT exceeds 10°C

54
Q

What position should the nacelle anti-ice switches be in during flight?

A

AUTO

55
Q

Icing conditions exist when?

A
  • Ground - OAT 10°C or below + Visible Moisture
  • Flight – TAT 10°C or below + Visible Moisture
  • On ramps, taxiways, runways with surface ice/snow/standing water.
  • When OAT < 10°C and dew point / OAT < 3°C
56
Q

Tires are approved for at least what true ground speed?

A

235 MPH

(204 Kts)

57
Q

Maximum RVSM Airspeed

(Mach)

A

.90 Mach

58
Q

Turbulent Air Penetration Speed

A

290 – 310 KIAS

.82 - .85 Mach

59
Q

Can terrain display be used for navigation?

A

No

60
Q

When is the use of terrain alerting and terrain display functions prohibited?

A

Within 15 nm of takeoff, approach, or landing at an airport not contained in the GPWS terrain database.

61
Q

Maximum Taxi Weight

A

397,800

62
Q

Maximum Takeoff Weight

A

396,893

63
Q

Maximum Landing Weight

A

302,092

64
Q

Maximum Zero Fuel Weight *

A

288,031

* ZFW greater than 276,691 comply with decrease maximum weight limits

65
Q

Maximum Tailwind Component

Takeoff

A

10 Kts

66
Q

Maximum Tailwind Component

Landing

A

10 Kts

67
Q

Maximum Tailwind Component

Runway clean and dry

< 7500’

A

0 Kts

68
Q

Maximum Tailwind Component

Runway clean and dry

7500’ – 7999’

A

5 Kts provided total surface wind is

10 Kts or less

69
Q

Maximum Tailwind Component

Runway NOT clean and dry

< 8000’

A

0 Kts

70
Q

Maximum Tailwind Component

Runway NOT clean and dry

8000’ – 8499’

A

5 Kts provided total surface wind is

10 Kts or less

71
Q

Maximum Demonstrated Crosswind Component (Peak Gust)

Takeoff

A

30 Kts

72
Q

Maximum Demonstrated Crosswind Component (Peak Gust)

Takeoff – Wet

A

25 Kts

73
Q

Maximum Demonstrated Crosswind Component (Peak Gust)

Takeoff – Standing Water, Slush, Snow or Ice

A

15 Kts (AAI)

74
Q

Maximum Demonstrated Crosswind Component (Peak Gust)

Landing

A

30 Kts

75
Q

Maximum Demonstrated Crosswind Component (Peak Gust)

Landing – Wet

A

25 (AAI)

76
Q

Maximum Demonstrated Crosswind Component (Peak Gust)

Landing – Standing Water, Slush, Snow or Ice

A

10 Kts (AAI)

77
Q

Landing Gear Operating Speed

Retracting or Extending

A

VLO = 270 KIAS

MMO = 0.82 Mach

78
Q

Landing Gear Extended Speed

A

VLE = 320 KIAS

MLE = 0.82 Mach

Boeing 747 (1 decks)

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