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ERJ 145 > Limitations > Flashcards

Limitations Flashcards

1
Q

Auto mode normal maximum differential pressure

A

7.8 psi

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2
Q

Maximum negative differential pressure

A

-0.3 psi

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3
Q

Maximum altitude after an in flight decompression

A

10,000ft. MSL unless MEA or other constraints require a higher altitude

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4
Q

Maximum operating speed Vmo/Mmo

A

320/.78

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5
Q

Maximum operating from 8,000 - 10,000 ft. MSL

A

Red Line

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6
Q

Maximum Operating - up to 8,000 ft. MSL

A

250

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7
Q

Maximum Turbulence Penetration

A

250/.63 whichever is lower, 200 at or below 10,000ft.

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8
Q

Maximum Maneuvering (Va)

A

200

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9
Q

Landing Gear Extension

A

250 kts

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10
Q

Landing Gear Extended

A

250 kts

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11
Q

Landing Gear Retraction

A

200 kts

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12
Q

Flaps 9

A

250 kts

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13
Q

Flaps 18

A

200 kts

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14
Q

Flaps 22

A

200 kts

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15
Q

Flaps 45

A

145 kts

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16
Q

Maximum Wiper Operating

A

160 kts

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17
Q

Momentary airspeed excursions at flaps 45 that are due to wind gusts or turbulence are allowed up to how many knots without crew or maintenance action?

A

155 kts

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18
Q

Steady state operating above how many knots at flaps 45 is not allowed?

A

145 kts

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19
Q

Maximum Operating Altitude

A

37,000ft.

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20
Q

Minimum Takeoff and Landing Pressure Altitude

A

-1,000 ft.

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21
Q

Maximum Takeoff and Landing Pressure Altitude

A

8,000 ft.

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22
Q

Takeoff and Landing Temperature Limits (Minimum)

A

-40 degrees C

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23
Q

Takeoff and Landing Temperature Limits (Maximum -1,000 and 8,000 ft)

A

52 C SAT, 34 C SAT

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24
Q

Minimum TAT in cruise flight above 25,000ft

A

-45 C

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25
Q

When do icing conditions exist?

A

When the OAT is 10C or below and visible moisture in any form is present (such as clouds, fog with visibility of one mile or less, rain, snow, sleet and ice crystals)

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26
Q

When do icing conditions exist in flight?

A

When the TAT is 10C or below and visible moisture in any form is present (such as clouds, fog with visibility of one mile or less, rain, snow, sleet and ice crystals)

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27
Q

When do icing conditions exist when operating on the ground?

A

When the OAT is 10C or below and operating on ramps, taxiways, or runways where surface snow, ice, standing water or slush may be ingested by the engines, or freeze on engines, nacelles or engine sensor probes.

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28
Q

Minimum and maximum temperatures for manual anti-ice operation

A

-40C, 10C

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29
Q

What temperature scale is used for ground or for takeoff?

A

Static Air Temperature (SAT)

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30
Q

What temperature scale is used for operations in flight?

A

Total Air Temperature (TAT)

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31
Q

What is the temperature limitation for automatic Anti-icing system operation

A

There is none

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32
Q

Takeoff is prohibited when:

A

Frost, snow, ice or slush is adhering to the wings, control surfaces, stabilizers, pitot static ports or AOA vanes

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33
Q

An _____ inch frost layer is permitted on the underwing surfaces. Frost not permitted on the:

A

1/8, not permitted on the lower or upper surface of the horizontal stabilizer or the upper surface of the wing

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34
Q

When is a runway considered contaminated?

A

When more than 25% of the required field length, within the width being used, is covered by:

  1. More than 1/8 inch of: standing water, slush or wet snow
  2. More than 3/4 inches of dry snow
  3. Compacted snow
  4. Ice
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35
Q

When should the pre-takeoff tactile check be performed?

A

Whenever outside temperature is 5C or below and

  1. There is visible moisture or:
  2. Water is present on the wing or
  3. The difference between the dew point and the outside temperature is 3C or less or
  4. The atmospheric conditions have been conducive to frost formation
36
Q

Minimum autopilot engagement height

A

500 ft.

37
Q

Minimum autopilot disengagement altitude

A 
Instrument approach (APR or NAV mode): MDA/DA
Visual Approach (HDG mode): TPA (1,500ft. AFL)
38
Q

When is autopilot use prohibited?

A

Single engine go arounds

39
Q

Approach mode selection during localizer capture is allowed only when

A

Aircraft is inbound

40
Q

When is yaw damper operation not authorized?

A

Takeoff to 500ft. AFL

Landing

41
Q

Maximum crosswind for CAT II operations

A

15 knots

42
Q

Maximum altitude for APU Operation

A

37,000ft.

43
Q

Maximum altitude for APU start

A

30,000ft.

44
Q

Maximum APU start EGT

A

884C

45
Q

Maximum continuous APU EGT

A

680C

46
Q

Maximum APU rotor speed

A

104%

47
Q

Minimum APU start temperature

A

-54C

48
Q

Minimum battery temperature for APU Start

A

-20C

49
Q

The APU (Continuous) EGT may be exceeded up to _____C for _____ minutes maximum

A

717C, 5

50
Q

APU Starter Limits (Cooling period)

A

Between 3 consecutive attempts: 1 min off

Between 2 series of 3 consecutive attempts: 30 min off

51
Q

What is the limitation when the AHRS is in the initialization mode?

A

Aircraft must not be moved

52
Q

Maximum load on main generator and APU generator

A

400A on main generator at all altitudes and APU generator up to 30,000ft
300A for APU generator above 30,000ft

53
Q

Maximum battery temperature

A

70C

54
Q

What is the engine cool down period after landing or high power runs?

A

1 min at idle or taxi thrust

55
Q

Minimum dispatch oil quantity?

A

8 quarts before engine start or 7 quarts after engine start

56
Q

What is the engine warm up timeframe prior to increasing thrust to the takeoff setting?

A

Run the engine at idle or taxi thrust a minimum of 4 minutes for cold engines and 2 minutes for warm engines. An engine is considered cold if it has been shutdown for more than 90 minutes.

57
Q

What is the minimum temperature of the engine oil prior to increasing thrust above 83%? Is there any way around this temperature limit?

A

Minimum oil temperature must be 40C. In lieu of this temperature limit, it is acceptable to run the engine for at least 8 minutes and ensure the oil temperature is in the green range prior to advancing the thrust levers for takeoff.

58
Q

Maximum ITT for engine starts

A

800C

59
Q

Maximum ITT for max continuous thrust

A

901C

60
Q

Maximum ITT for ALT T/O-1

A

917C

61
Q

Maximum ITT for T/O-1 [A1/3], T/O [A1/3]

A

929C

62
Q

Maximum ITT for T/O-1 [A1], T/O RSV [A1/3]

A

948C

63
Q

Maximum N1%

A

100%

64
Q

N2% min-max

A

57.0-102.4%

65
Q

Oil pressure may operate in the Amber range up 115psi in all thrust modes for how long?

A

5 min

66
Q

Operations in the Amber range above 115psi to 155psi is permitted for how long?

A

2 min

67
Q

What is the total time in the Amber range allowed for oil pressure?

A

5 min

68
Q

What must happen if the oil pressure exceeds into the red range?

A

It is not authorized and must be monitored and logged in the AML

69
Q

Minimum oil temperature for starting

A

-40C

70
Q

Minimum oil temperature for takeoff

A

40C (if temperature is not at 40, perform the engine warm up prior to takeoff procedure)

71
Q

Engine starter limits (on ground)

A

Starting or dry motoring: up to 5 min ON, 5 min off
OR
1st - 4th cycles: 1 min. ON, 1 min. OFF
Following cycles: 1 min. ON, 5 min. OFF

72
Q

Engine starter limits (in flight)

A

Maximum continuous operation time: 5 min. ON

No cool down time is required

73
Q

Maximum altitude for flap extension

A

20,000ft.

74
Q

Maximum airspeed after takeoff/during climb without re-trimming

A

160 kts

75
Q

Maximum fuel imbalance

A

800 lbs

76
Q

Total usable fuel

A

11,100 lbs

77
Q

Minimum and maximum fuel tank temperature

A

-40C, 52C

78
Q

Holding configuration

A

Landing gear up
Flaps up
Minimum airspeed 200 kts (icing conditions only)

79
Q

What are the intended uses of the thrust reversers?

A

Rejected takeoff and landing only

80
Q

After initiating reverse thrust, what just happen?

A

A full stop

81
Q

Maximum thrust reverse MUST be used:

A
  1. To prevent a runway excursion
  2. When landing on runways with “medium” or “poor” braking action reported, unless the appropriate landing distance penalty is applied
82
Q

Idle reverse MAY be used on:

A
  1. Dry runways 9,000ft. or shorter (usable length)

2. Non-dry runways where the braking action is good

83
Q

Thrust reverser use is prohibited for:

A
  1. Power back operations
  2. Taxi operations
  3. Thrust lever stabilized in any intermediate position between idle reverse and maximum reverse
84
Q

Maximum demonstrated crosswind

A

30 kts

85
Q

Flight maneuvering load acceleration limits

A

Flaps up: 2.5g - -1.0g

Flaps down: 2.0g - 0g

86
Q

Maximum takeoff and landing tailwind

A

10 kts

87
Q

Maximum differential pressure

A

8.1 psi

ERJ 145 (20 decks)

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