B747 Limitations Flashcards
0
Q
Max T/O + Landing Altitude?
A
10,000’
1
Q
Max Operating Altitude?
A
45,100’
2
Q
Max Field Elevation?
A
9,500’
3
Q
Maximum Runway Slope?
A
+/- 2%
4
Q
Turbulent Air Penetration Speed?
A
290-310KIAS or M.82-M.85 (whichever is lower)
5
Q
Max Tire Speed?
A
235MPH (204KTS Groundspeed)
6
Q
When Pax Occupy Upper Deck what applies?
A
Cabin Crew member must be on duty for taxi, T/O, and landing.
7
Q
Max Tailwind Component?
A
15 knots
8
Q
Max wind speed opening or closing all doors?
A
40 knots
9
Q
Max wind speed while doors are open?
A
65 knots
10
Q
Max T/o + Landing Xwind for OPS?
A
Good/Dry ------ 40/36 Good/Wet ------ 25/32 Medium -------- 15/25 Med to Poor ---- 15/20 Poor ------------- 15/15
11
Q
Max Xwind for Nil braking action?
A
Ops Prohibited
12
Q
Touchdown above what bank angle will result in nacelle contact?
A
5 degrees
13
Q
Max Taxi Weight?
A
397,800 KGS
14
Q
Max Takeoff Weight?
A
396,893 KGS
15
Q
Max Landing Weight?
A
302,092 KGS
16
Q
Max Zero Fuel Weight?
A
288,031 KGS
17
Q
Max Differential Pressure?
A
9.4PSI
18
Q
Max Cabin Pressure Differential for T/O + Landing?
A
0.11PSI
19
Q
Can APU GEN be used in flight?
A
NO
20
Q
Max APU operation altitude?
A
20,000’
21
Q
Max altitude for APU bleed air?
A
15,000’
22
Q
Can aileron trim be used with A/P engaged?
A
NO
23
Q
Min A/P engagement height?
A
250’ AGL
24
Min altitude to disengage A/P?
50' below MDA unless coupled to ILS
25
Without LAND2 or LAND3, minimum A/P disengage height?
100' AGL
26
Autoland touchdown point?
2,500' from runway threshold
27
Autoland added to advisory landing distance?
1000'
28
Autoland flap settings?
Flaps 25 or 30 only
29
Min/Max glideslope angle for autoland?
2.5/3.25
30
Which hydraulics systems must be operable for autoland?
All 4 hydraulic systems
31
Autoland Max Wind Components?
```
25 KTS (HW)
15 KTS (TW)
25 KTS (XW)
15 KTS (XW CAT 2/3)
```
32
Autoland Min Threshold Crossing Height?
44'
33
When is use of HF radios prohibited?
During refueling
34
Do not use center VHF for what frequencies?
120.000 or 120.005 (A/C specific)
35
Do not use center radio for COMM when?
Have operational ACARS
36
Approved ACARS messages (5)?
PDC, D-ATIS, Oceanic CLNC, W&B, Perf Data
37
Items needed for CPDLC?
```
HF Radio (1)
Left and Right CDU
FMC (1)
SATCOM (High or Low Gain)
ACARS (1)
```
38
When must flight crew use oxygen?
Cabin altitude above 10,000'
39
Max number of supernumeraries allowed access to main deck cargo compartment in flight for cargo/live animal ops?
3
40
How many portable 02 bottles required for supernumerary use?
At least 1 portable 02 unit with a full face mask for each supernumerary allowed to enter main deck cargo compartment during flight.
41
During flight, when must supernumerary carry portable 02 unit?
Whenever he/she is in the main deck cargo compartment.
42
Requirement regarding supernumerary and 02?
Must be trained in the use of oxygen units and making the determination whether 02 is being delivered to dispensing units.
43
What are target minimum 02 pressures (LAND/OCEAN)?
Crew System Land - 950 PSI
| Crew System Ocean - 1,200 PSI
44
Target 02 must allow?
An adequate quantity of oxygen for sustenance must be provided for each occupant for flight at 25,000 feet cabin altitude to the nearest suitable airport.
45
When must the smoke barrier door be closed?
Taxi, takeoff, flight and landing. Must be closed in flight except w/ entering or leaving main deck cargo compartment.
46
What is the Boeing Equivalent Thrust (CF6-80C2-B1F/B5F)?
56,500 LBS and 62,100 LBS
47
Max Starting EGT (Continuous)?
750C
48
Max Starting EGT (Transient for 40 Sec)?
870C
49
Max Takeoff EGT? How long?
960C for 5 minutes
50
Max Continuous EGT?
925C
51
Max Continuous engine oil temp?
160C
52
Max Transient engine oil temp? How Long?
175C for 15 minutes
53
When in EEC alternate mode, when must thrust be set for takeoff?
After brake released.
54
Minimum Oil Pressure?
10 PSI
55
Max N1 RPM?
117.5%
56
Max N2 RPM?
112.5%
57
When must continuous IGN be on (6) ?
```
Mod to Heavy Rain
Mod to Severe Turb
Icing
Hail or Sleet
Volcanic Ash
Standing water or slush on runway
```
58
When is turning pack off prohibited with regard to fire?
If fire suppression system is armed.
59
Max flap altitude?
FL200
60
When is use of Speedbrakes not recommended?
In flight with flaps extended past 20.
61
When must altimeter setting be verified?
If datalink or voice does not clearly state IN, hPa, or mb.
| Question the station to eliminate misunderstanding.
62
What 2 rules apply to EFB?
Do not use Airport Map display as primary ref.
| Keyboard & Cable stowed during T/O + Land.
63
Max airspeed in RVSM?
0.90M
64
RVSM max speed not?
Not indicated on airspeed display or audible warning
65
Max altitude difference for RVSM in flight?
200' between CA/FO
66
Max on ground altitude difference for RVSM (SL-5,000')?
35' CA/FO or 75' CA/FO to FE
67
Max on ground altitude difference for RVSM (9,500')?
40' CA/FO or 75' CA/FO to FE
68
Inside FAF, PM must monitor req'd primary navaids by display of?
LOC - Loc and GS
DME - DME data
VOR - ND map may be used (switches in VOR)
NDB - ND map may be used (switches in ADF)
69
RNAV APP must go-around if?
EICAS alert message "UNABLE RNP" displays while on approach unless adequate visual ref can be maintained.
70
Not authorized to fly RNAV or RNP unless?
Procedure is retrievable by the procedure name from the current a/c navigation database and conforms to the charted procedure.
71
What must be done when using QFE?
QFE altitude reference for the PFD's must be selected on the CDU Approach Reference page
72
LNAV or VNAV with QFE?
Prohibited
73
Min/Max descent angle for VNAV during approach?
2.75/3.5
74
If leveling off within 2,000' after a QNE to QNH (or VV)?
Do not use VNAV to execute level-off if QNH is less than 29.70. After level-off, VNAV may be re-engaged.
75
If CWT has fuel?
CWT fuel quantity indication must be operable.
76
Can we reset tripped fuel pump CB?
No
77
Do not cycle CWT and HST pump switches?
From ON to OFF to ON with any continuous low pressure indication present.
78
If CWT has fuel and FUEL LOW CTR L or R displayed?
Both CWT override/jettison pumps must be selected OFF.
* so we always turn off BOTH CWT even if we only get an indication for one side.
79
If CWT has fuel and FUEL PRESS CTR L or R displayed?
The corresponding CWT override/jettison pump must be selected OFF.
80
In low fuel situation, both CWT override/jett pumps?
May be selected ON and all CWT fuel may be used.
81
CWT in emergency?
May be emptied normally.
82
Dispatch with HST mission fuel?
HST fuel quantity indication system must be operative.
83
If FUEL PMP STB L or R message displayed on ground?
Both HST pumps must be selected OFF.
84
If FUEL LO STAB L or R message displayed in flight?
Corresponding HST pump must be selected OFF.
85
If FUEL PRES STAB L or R message displayed?
Corresponding HST pump must be selected OFF.
86
HST FUEL messages mean remaining HST fuel?
Must be considered unusable and effects on balance (CG) must be considered.
87
In low fuel situation, HST transfer pumps?
May be selected ON and all HST fuel may be used.
88
Prior to defueling any fuel tanks?
Perform Lamp test of respective Fuel Pump Low Pressure indication lights.
89
Fuel jettison and flaps?
Do not extend or retract flaps between 1 and 5 during jettison.
90
Available range of fuel density?
2.72 to 3.22 KGS per gallon.
91
List of approved fuels found?
Limitations
92
Min fuel tank temperature?
3 degrees above freezing point of fuel being used.
*JET A at -40C is most restrictive
93
Max fuel tank temperature?
+54C
94
Can we use Jet B or JP4?
NO
95
Icing condition exist when?
OAT or TAT is 10C or below with:
- vis moisture
- ice, snow, slush, water present on taxi, ramp, or rwy
96
Do not use anti-ice if?
SAT or TAT exceeds 10C
97
NAI/EAI on when?
All ground and flight ops when icing conditions exist or are anticipated except when temp drops below -40C SAT
98
NAI and PACK HI FLOW ON?
When less than 10C in icing with engine thrust reduced for a descent or speed reduction. This includes SAT below -40C.
99
WING A/I ON?
When ice detected or when below FL220 and in icing conditions.
100
Window heat used?
Used for ALL normal flight ops.
101
When may window heat be INOP on one window?
- Not in known icing
- Window anti-fogging must be operative
- Remaining window heat works
- Check DDG
102
Max gear extend and retract?
270 KIAS/M.82
103
Max gear extended?
320 KIAS/M.82
104
Max occupancy for upper deck?
8 total (6 in addition to crew)
105
Can terrain display be used for nav?
NO
106
Airport not in database?
EGPWS must be turned of within 15 miles for approach and landing or a takeoff.
107
Airport not in database are identified by?
INTAM
108
Radar use prohibited?
- In hangar (Test Mode OK)
- Within 50' of personnel
- Within 50' of fuel spill
109
Max Speed SL-FL290
365 KTS (Vmo)
110
Max Speed above FL290
.92M
111
Target Pax System 02 (LAND/OCEAN)
1,200 PSI
112
Can you enter MNPS airspace if LNAV has failed?
NO
113
Flap Extension Speeds?
280/260/240/230/205/180
114
NAI and PACK HI FLOW must be ON when?
When engine thrust is reduced for a descent or speed reduction while in viz moisture with the TAT less than 10C, including SAT less than -40C.
115
APU Start Cycle limits for battery?
```
1 min
5 min
1 min
20 min
1 min
```
116
APU Start Cycle limits for TR?
```
1 min (Between 1 & 2)
10 min (2 & 3)
10 min (3 & 4)
20 min etc...
20 min
20 min
```
117
Noise Level Certification?
Stage 4 and ICAO Annex 16
