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ERJ 145 > Limitations > Flashcards

Limitations Flashcards

1
Q

What is the minimum flight crew?

A

2 pilots

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2
Q

What is the aircraft certified under?

A

FAR Part 25: Airworthiness Standards: Transport Category

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3
Q

What kinds of operations is the aircraft certified for?

A

Day and Night VFR
Day and Night IFR
FIKI

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4
Q

What is the maximum runway slope?

A

+/- 2%

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5
Q

What surfaces is the aircraft approved to takeoff and land on?

A

Paved surfaces only

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6
Q

What is the maximum tailwind component?

A

10 knots

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7
Q

What are the minimum and maximum take off and landing pressure altitudes? (EP & LR models)

A

-1,000ft to 8,000ft

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8
Q

What are the minimum and maximum takeoff and landing pressure altitudes? (XR models)

A

-1,000ft to 10,000ft

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9
Q

What is the service ceiling?

A

FL370

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10
Q

What is the maximum operational SAT?

A

ISA +35C

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11
Q

What are the minimum and maximum SATs for takeoff and landing?

A 
Minimum = -40C
Maximum = 52C
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12
Q

When is a maintenance inspection required after landing?

A

If the aircraft lands in temperatures below -40C SAT

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13
Q

What is the minimum and maximum SAT at FL 370?

A 
Minimum = -65C
Maximum = -21.5C
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14
Q

What is the minimum SAT below FL250?

A

-54C

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15
Q

What is the minimum TAT above FL250?

A

-45C, but momentary deviations down to -50C do not require maintenance action

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16
Q

What is Vmo/Mmo up to 8,000ft? (EP and LR models)

A

250 KIAS

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17
Q

What is Vmo/Mmo from 10,000ft to FL260? (EP and LR models)

A

320 KIAS

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18
Q

What is Vmo/Mmo above 10,000ft? (EP and LR models)

A

Mach 0.78

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19
Q

What is Vmo/Mmo up to 8,000ft? (XR models)

A

300 KIAS

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20
Q

What is Vmo/Mmo from 10,000ft to FL270? (XR models)

A

320 KIAS

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21
Q

What is Vmo/Mmo above 10,000ft? (XR models)

A

Mach 0.80

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22
Q

What is Va?

A

200 KIAS

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23
Q

What is turbulent air penetration speed at and below 10,000ft?

A

200 KIAS

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24
Q

What is turbulent air penetration speed above 10,000ft?

A

250 KIAS or Mach 0.63, whichever is lower

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25
Q

What is the minimum battery temperature for an APU start?

A

-20C

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26
Q

What is the minimum battery voltage for an APU start?

A

19 volts

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27
Q

What is the maximum altitude for an APU start?

A

FL300

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28
Q

What is the maximum operational altitude of the APU?

A

FL370

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29
Q

What is the maximum APU generator load above FL300?

A

300 amps

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30
Q

What do you do if the battery voltage is less than 24 volts but at least 19 volts?

A

Start the APU to recharge the batteries

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31
Q

What do you do if the battery voltage is below 19 volts?

A

Contact maintenance

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32
Q

How long can the ISIS last (EP and LR models)

A

Up to 40 minutes when operating in essential mode, which can be extended to 45 minutes if not in icing conditions and the pitot static system 3 heat is off

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33
Q

How long does the ISIS last? (XR models)

A

Because it is powered by the backup hot bus, it will last for 240 minutes.

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34
Q

What is the minimum oil temperature to start the AE3007?

A

-40C

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35
Q

List the engine starter limits

A

1st through 4th attempts maximum starter engagement and required cooling period is 60 seconds

5th attempt maximum starter engagement is 60 seconds and the required cooling period is 5 minutes

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36
Q

What is the maximum amount of time the engine can be dry motored?

A

5 minutes

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37
Q

What is the required starter cooling period after the engine has been dry motored for greater than 60 seconds?

A

5 minutes

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38
Q

What is the maximum ITT during an engine start?

A

800C

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39
Q

What is considered a cold engine?

A

An engine that has been shut down for more than 90 minutes

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40
Q

How long must a cold engine run before increasing thrust above taxi thrust?

A

2 minutes

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41
Q

What is the minimum oil pressure?

A

34 psi

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42
Q

What is the maximum oil pressure?

A

110 psi

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43
Q

When may maximum oil pressure be exceed?

A

During engine start if the oil temperature is below 21C and the engine must remain at idle until the oil pressure drops below 110 psi.

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44
Q

How long are oil pressures between 111 to 115 psi permitted for?

A

Up to 5 minutes

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45
Q

How long are oil pressures between 116 to 155 psi permitted for?

A

2 minutes

46
Q

What is the maximum amount of time oil pressure can be above 110 psi?

A

5 minutes

47
Q

To increase power above 83% N2 what condition needs to be met?

A
  • the oil temperature must be at least 40C or
  • the engine must have been running for at least 8 minutes or
  • Complete a static run up to 88% N2 until oil pressure is at or below 83 psi
48
Q

What is the minimum oil pressure to go above 88% N2? (A1/3 and A1P engines)

A

50 psi, but is reduced to 34 psi for takeoffs and go arounds

49
Q

What is the minimum oil pressure to go above 88% N2? (A1E engines)

A

48 psi, but it is reduced to 34 psi for takeoffs and go arounds

50
Q

What is the time limit for takeoff thrust ratings and ITT limits?

A

Maximum of 5 minutes

51
Q

What are the takeoff thrust ratings? (A1E engines)

A
  • ITT up to 970C is limited to 5 minutes

- ITT between 971C and 992C is limited to 90 seconds

52
Q

What is the maximum ips for the low pressure and high pressure spools?

A
  • Up to nut not including 2.5 ips for up to 5 minutes only during takeoffs and go arounds
  • at all other times they can vibrate up to but not including 2.5 ips for only 10 seconds
53
Q

What is the maximum N1?

A

100%

54
Q

How long must an engine sit at idle or taxi thrust before it can be shut down?

A

2 minutes

55
Q

What should you do if an engine limit is reached or exceeded?

A

Monitor it and log it

56
Q

List the APU starter limits

A
  • Attempts 1-2 = 60 second cool down period

- 3rd attempt = 30 minutes

57
Q

When will the APU automatically shut down?

A

At 104% rotor speed

58
Q

How long can the APU exceed 680C to 717C?

A

Maximum of 5 minutes

59
Q

What is the maximum permitted fuel imbalance between wing tanks?

A

800lbs

60
Q

What is the minimum fuel tank temperature?

A

-40C

61
Q

What is the maximum fuel tank temperature?

A

52C

62
Q

What is the maximum airspeed with the stabilizer set for takeoff?

A

160 KIAS

63
Q

What is the maximum altitude for flap extension?

A

20,000ft

64
Q

What is Vfe for flaps 9 (all models)

A

250 KIAS

65
Q

What is Vfe for flaps 18? (All models)

A

200

66
Q

What is Vfe for flaps 22 (all models)

A

200 KIAS (for XR models above 10,000ft MSL it’s the yaw damper disengaged it is 180KIAS)

67
Q

What is Vfe for flaps 45 (EP and LR models)

A

145 KIAS (when flaps are at or in transition to or from 45 degrees, momentary deviations between 145 KIAS and 160 KIAS do not require a maintenance inspection)

68
Q

What is Vfe for flaps 45 (XR models)

A

160 KIAS (above 10,000ft MSL with the yaw damper engaged it is 145 KIAS)

69
Q

What is Vlo (Up)

A

200 KIAS

70
Q

What is Vlo (Down)

A

250 KIAS

71
Q

What is Vle

A

250 KIAS

72
Q

What is the maximum pressure differential?

A

7.8 psi

73
Q

What is the maximum over pressure differential?

A

8.1 psi

74
Q

What is the maximum negative pressure differential?

A

-0.3 psi

75
Q

What is the minimum temperature to manually activate the thermal anti icing system on the ground?

A

-40C SAT

76
Q

What is the minimum temperature to manually activate the thermal anti icing system in flight?

A

-40C TAT

77
Q

What is the maximum temperature to manually activate the thermal anti icing system on the ground?

A

10C SAT (may be exceeded if performing ice protection test A)

78
Q

What is the maximum temperature to manually activate the thermal anti icing system in flight?

A

10C TAT

79
Q

What is the holding configuration in icing conditions?

A
  • Gear up
  • Flaps up
  • minimum airspeed of 200 KIAS
80
Q

When should the windshield wipers not be used?

A

On a dry windshield

81
Q

What is the maximum airspeed the wind shield wipers can be operated?

A

170 KIAS

82
Q

The aircraft must not be moved during what?

A

AHRS initialization

83
Q

When should the standby AI or ISIS not be caged?

A

During turning flight

84
Q

What is max ramp weight?

A

48,722lbs

85
Q

What is max takeoff weight?

A

48,501 lbs

86
Q

What is max landing weight?

A

42,549 lbs

87
Q

What is max zero fuel weight?

A

39,462 lbs

88
Q

What is the max cargo hold?

A

2,646 lbs

89
Q

What is the max overhead bin?

A

65 lbs or as placarded

90
Q

What is the max crosswind component?

A

30 knots

91
Q

What is the maximum continuous ITT?

A

901C

92
Q

How long does the passenger oxygen last?

A

12 minutes

93
Q

What is the minimum pressure of the portable O2?

A

1,200 psi

94
Q

What is the duration of the portable oxygen cylinder?

A

30 minutes

95
Q

What is the duration of Protective Breathing Equipment? (PBE)

A

15 minutes

96
Q

What are the crew O2 requirements?

A
  • Captain and first officer = 1,052 psi

- with an observer = 1,495 psi

97
Q

What is the max capacity of a single fuel tank?

A

852 gallons

98
Q

What is the max total usable fuel weight?

A

11,434 lbs at 6,767 lb/gal (unusable fuel increases to 365 lbs in each tank with a pump fail)

99
Q

What is the maximum fuel temperature for takeoff?

A

45C

100
Q

What is the minimum temperature at FCOC without an anti ice additive?

A

4C

101
Q

What is the max rated thrust for the engines? (A1 engines)

A

7426 lbs for 5 minutes at ISA +30C

102
Q

What is the minimum oil capacity for the engines?

A

6 quarts

103
Q

What is the maximum altitude to use the bleed air from the APU?

A

18,000ft

104
Q

How long must the APU idle to use bleed air?

A

3 minutes

105
Q

What is the minimum and maximum battery voltage for the APU?

A
  • Minimum = 23.5 volts

- Maximum = 32.5 volts

106
Q

What is the maximum start temperature for the APU?

A

884C, 925C above 25,000ft for 10 seconds

107
Q

What is the maximum continuous temperature for the APU?

A

717C

108
Q

What is the minimum outside air temperature for APU operation?

A

-54C

109
Q

What is maximum continuous RPM for the APU?

A

108%

110
Q

What is the maximum oil temperature for the APU?

A

166C

111
Q

What is minimum oil pressure for the APU?

A

6 psi

112
Q

What is the minimum fuel pressure for the APU?

A

6.5 psi

ERJ 145 (5 decks)

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