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Boeing 757/767 > Limitations > Flashcards

Limitations Flashcards

1
Q

Min/Max Runway Slope

A

+/- 2%

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2
Q

Max Takeoff and Landing Tailwind Compontent

A

15 knts

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3
Q

Max Operating Pressure Altitude

A

B757 - 42,000’

B767 - 43,100’

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4
Q

Max demonstrated crosswind Takeoff and Landing

A

B757 - 30 knts

B767 - 33 knts

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5
Q

Max Takeoff and Landing Pressure Altitude

A

8400’

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6
Q

Maneuvering Load Limits

A

Flaps Up: +2.5g to -1.0g

Flaps Down: +2.0g to 0.0g

*With Flaps 25 and 30, positive limits vary linearly from +2.0g at max landing weight to +1.5g at max takeoff weight

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7
Q

FLCH Limits

A

Do house FLCH on final approach below 1000’ AFE

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8
Q

Ground Maneuvering Limit

A

180º turns are prohibited on runways with widths of 150’ or less

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9
Q

Max allowable in-flight difference between Captain and FO altitude displays

A

200’

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10
Q

Max allowable altitude display differences between Captain and FO on the ground

A

SL: 40’
5000’: 45’
10,000’: 50’

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11
Q

Weather Radar Limits

A
  • Avoid weather Radar operation in a hangar

- Avoid wishing 50’ of fueling operation or fuel spill

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12
Q

Turbulence Airspeed

A

290 knts/0.78M

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13
Q

Flap Placard Speed - B757

A 
1 - 240
5 - 220
15 - 210
20 - 195
25 - 190
30 - 162
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14
Q

Flap Placard Speed - B767

A 
1 - 250
5 - 230
15 - 210
20 - 210
25 -180
30 - 170
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15
Q

VLO

A

Retract - 270

Extend - 270

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16
Q

MLO

A

0.82

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17
Q

VLE/MLE

A

270 knts/0.82M

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18
Q

Landing Gear Extended with Alternate Sys

A

VLO - 250

MLO - 0.75M

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19
Q

Max Operating Speed

A

B757 - 350/0.86M
B767W - 345/0.86M
B767 - 360/0.86M

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20
Q

Max Taxi Weight

A

B757 - 251,000 lbs

B767 - 409,000 lbs

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21
Q

Max Takeoff Weight

A

B757 - 250,000 lbs

B767 - 408,000 lbs

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22
Q

Max Landing Weight

A

B757 - 210,000 lbs

B767 - 326,000 lbs

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23
Q

Max Zero Fuel Weight

A

B757 - 200,000 lbs
B767W - 312,300 lbs
B767 - 309,000 lbs

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24
Q

Min Inflight Weight

A

B757 - 108,600 lbs

B767 - 176,000 lbs

25
Q

Max wind gust with door open

26
Q

Max wind during door operation

27
Q

Max Cabin Pressure Differential

28
Q

Auto Flight Limits

A
  • Autolands limited to flaps 25 or 30
  • On takeoff, do not engage below 200’
  • Use of aileron trim with autopilot engaged is prohibited
  • Do not use AP below 100’ RA at airport pressure altitudes above 8400’
29
Q

Max allowable wind speeds - Autoland

A

Headwind - 25 knts
Crosswind - 25 knts
Tailwind - 10 knts

30
Q

Continuous Ignition

A

Ignition shall be on for takeoff and landing

31
Q

EICAS Display

A

Do not blank engine vibration during takeoff

32
Q

Reverse Thurst

A
  • ground use only

- Backing aircraft with use of reverse thrust is not permitted

33
Q

Starter Operation - B757

A

Normal Duty:

1 - 3: 2 mins on followed by spool down to zero N2 (PW), N3 (RR)
*15 min cooling period after 3 attempts

Extended Duty:
Up to 4 mins continuous operation followed by 15 mins cooling

34
Q

Starter Operation - B767

A

Normal Duty:
Up to 5 mins on, followed by 1/2 minute off per minute on

Extended Duty:
Two consecutive 5 mins cycles require 10 min cooling period before additional 5 mins cycle

35
Q

Max Engine RPM (PW)

A

N1 - 100.5%

N2 - 100.0 %

36
Q

Engine EGT limits (PW)

A

Starting (Ground): 485ºC (30s limit); 545ºC (Momentary)
Starting (Flight): 645ºC (Momentary)

Takeoff: 645ºC (5 min limit; 10 mins engine out)

Max Continuous: 615ºC

37
Q

Min Eng Oil Pressure (PW)

A

At idle RPM: 70 psi

All other conditions: 80 psi

38
Q

Min Oil Temp for takeoff (PW)

39
Q

Max Oil Temp (PW)

40
Q

Max Transient Oil Temp (PW)

A

177ºC (limited to 20 mins)

41
Q

Max Engine RPM (RR)

A

Takeoff: (limited to 5 mins; 10 mins during engine failure)
N1 - 108.8
N2 - 100.3
N3 - 99.0

Continuous:
N1 - 108.4
N2 - 98.0
N3 - 95.8

Overspeed: (20 sec limit)
N1 - 110.0
N2 - 101.3
N3 - 100.2

42
Q

Max Engine EGT (RR)

A

Starting Ground or Flight: 570ºC (gnd - momentary; flight - 2 sec)

Takeoff: 850ºC (5 mins; engine out 10 mins)

Max Continuous: 795ºC

Max Overtemp: 870ºC (20 sec)

43
Q

Min Oil pressure at takeoff (RR)

A

50% N3 - 25 psi
70% N3 - 35 psi
93% N3 - 40 psi

44
Q

Min oil pressure for flight completion (RR)

A

At or below 50% N3 - 18 psi
70% N3 - 25 psi
93% N3 - 35 psi

45
Q

Max Oil Temp (RR)

46
Q

Min oil temp for start (RR)

47
Q

Min Oil Temp for advancing thrust levers (RR)

48
Q

Max Engine RPM (GE)

A

N1 - 117.5%

N2 - 112.5%

49
Q

Max Engine EGT (GE)

A

Starting - 750ºC; 870ºC (40 sec)

Takeoff - 960ºC (5 mins, 10 mins engine out)

Max Continuous - 925ºC

50
Q

Min Oil Pressure (GE)

51
Q

Max continuous Oil Temp (GE)

52
Q

Max transient Oil Temp (GE)

A

175ºC (limited to 15 mins)

53
Q

APU Starter Duty

A

3 consecutive start attempts within 60 mins (5 mins cooling between starts)

54
Q

Max Flaps Extended Altitude

55
Q

Max Fuel Temp (Jet A)

56
Q

Min Fuel Tank Temp

A

B757: -45ºC or 3ºC above fuel freezing temp
B767: 3ºC above fuel freezing temp

57
Q

Conditions for ABNORMAL START (PW)

A
  • The EGT does not increase by 20 seconds after the fuel control switch is moved to RUN
  • There is no N1 rotation by 40% N2
  • The EGT quickly nears or exceeds the start limit
  • The N2 is not at idle by 2 minutes after the fuel control switch is moved to RUN
  • The oil pressure indication is not normal by the time that the engine is stabilized at idle
58
Q

Conditions for ABNORMAL START checklist (RR)

A

• The EGT does not increase by 20 seconds after the fuel control switch is moved to RICH or
RUN
• The EGT quickly nears or exceeds the start limit
• The oil pressure indication is not normal by the time that the engine is stabilized at idle

59
Q

Condition for ABNORMAL START checklist (GE)

A
  • The EGT does not increase by 25 seconds after the fuel control switch is moved to RUN
  • There is no N1 rotation by 30 seconds after N2 is stabilized at idle
  • The EGT quickly nears or exceeds the start limit
  • The oil pressure indication is not normal by the time that the engine is stabilized at idle

Boeing 757/767 (19 decks)

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