Other Limitations Flashcards
What FAR Categories are the 757 and 767 certified under?
FAR 25 and 36
Max TOL Pressure Altitude
757-
767-
757-9500’
767-8400’
MMO (Both aircraft)
.86 Mach
Are airspeed markings for limitation purposes IAS or TAS?
IAS and not corrected for instrument error (1.20.2)
Max gear operating/ extended speed
270/.82
Max Alternate gear extension speed
250/.72
Normal runway width
148’
Minimum runway width
757-
767-
757-100’
767-115’
Are Flaps 1 Takeoffs allowed?
No
With crosswinds greater than 25 knots use__to ensure ground clearance
combination of crab and wing-down
Maneuvering speed at Sea Level
752-
763-
752-280
763-302
Max T/O Weight
752-
753-
763-
764-
752- 255,000#
753- 273,000#
763- 407,000#
764- 450,000#
Max Landing Weight
752-
753-
763-
764-
Max Landing Weight
752- 198,000#
753- 224,000#
763- 320,000#
764- 350,000#
757-300- Flight planning system limits all takeoffs to 272,500# because-
Max T/O weight is 273,000# for Sea Level to 1500’ MSL, between 1500’ and 5000’ MSL max T/O weight decreases linearly to 272,500#
Max Cabin Press Diff-
Max Diff for TOL
9.1
0.125
When then Aircraft is electrically powered on the ground for more than 20 minutes___ must be provided
Equipment Cooling (see chart)
Engine Anti-Ice
When can you turn it off below -40° C?
SAT or TAT?
Climb and Cruise
SAT
When to to turn on Engine Anti-Ice
Below 10° TAT and visible moisture
If in Climb or Cruise do not need it below -40° SAT
Additional 767-400 limitations
-During descent Wing Anti-Ice must be on prior to and during descent in icing conditions below FL220
-A/P can not be used below 100’ RA when coupled to an ILS unless you have LAND2 or LAND3
When can we use Wing Anti-Ice during Takeoff?
Not until after first power reduction
Max/Min Glideslope angles
2.50° to 3.25°
When not doing an Autoland when must the auto throttles be disconnected? (Min altitude)
50’ AGL
Are we allowed to comply with clearances received solely though HF datalink?
No (1.30.6)
We are prohibited from resting what Circuit Breakers?
Fuel boost pump or fuel control circuit breakers
For severe turbulence what must Engine Start position must be selected?
CONT
When is Wing Anti-Ice required?
First indication of icing as indicated by ice accumulation on flight deck window frame, windshield center post, windshield wiper post or side windows.
**764-Below FL220 turn it on prior to entering icing conditions, do not wait for ice accumulation
On a Go-Around Autopilot can not be engaged until when?
Until a pitch mode other than GA is selected (which will be after Acceleration Altitude)
Do not operated Broadband/KA (WiFi) system__
During De-Icing or when Maintenance is being performed near the radome
757- Max time in Takeoff thrust
Five Minutes or Ten with Engine failure on Takeoff
APU Starter duty limit
Three start attempts can be made followed by a one hour cooling period
Max Altitude to use APU for Pneumatics
17,000’ MSL
(Extended) Engine Starter Duty Cycle for 757
Up to 4 minutes continuous operation, followed by 15 minute wait
763 Max Continuous Engagement
15 minutes.
Cooling periods vary for 0 to 5 to 10 to 15 minutes
APU Cooling between Start Attempts
757, 764-
763-
Five minutes between attempts
Allow one minute between attempts
Polar Operations are North of___ or South of ___ and are prohibited
78° north and 60° South
Do not operate IFR or night in to airports north of _____if their Nav aids are based on___
73° north
If NavAids are reference to True North
Does the Standby altimeter meet the RVSM accuracy requirements?
No
When using QNH do not use VNAV to level off if after changing altimeter setting if it’s below__
29.70
JET A Fuel Temp limits
Freezing Point-
Min Inflight Temp-
Maximum Temp-
Freezing -40°
Min Inflight -37° C
Max +49° C
Fuel weight is based fuel density__ pound per gallon (753)
7.1
If you load fuel in the center tanks with less than full wing tanks what must be taken int o consideration?
The center fuel must be accounted for towards the zero fuel weight
Do not balance fuel with less than a ___lb imbalance unless directed to by a procedure
1,000#
Can the Center Tank fuel press switches be on with the flight deck empty?
No- someone must be there to monitor low PRESS lights
Max Tire Groundspeed
757
767
757-195 knots groundspeed
767-205 knots groundspeed
Flight deck O2 requirements. If O2 Pressure is above___ it will meet all requirements
1400
757 Engines
How much thrust at T/O?
Rolls Royce RB211
42,700lbs Takeoff Thrust
767-300 Engines
Pratt and Whitney PW4060
60,000lbs thrust at Sea Level
Flat Rated to 92° F
Max Tire Groundspeed
757, 763 -
764
195
205
GROUNDSPEED
For wingspan limited taxi operations, the Aircraft Design Group identifiers are:
Group__ for FAA
Code__ for ICAO
Group IV for FAA
Code D for ICAO
The 757 and 767 are classified as Cat__ for straight in approaches and Cat__ for circling
Cat D for both
Vmo
Mmo
Airspeed pointer on A/I
.86 Mach
Max Gear extended and operating speed
270/.82
Normal Runway width
148’
Minimum runway width
757-
767-
757- 100’
767- 115’
Max cabin pressure differential
9.1 PSI
During ground operations with Engine Anti-Ice on and the OAT at or below 3 degrees, accumulated engine ice must be removed by___
advancing thrust on each engine, either together or separately momentarily to 50% N1
When must the first engine run up be completed (after de-icing)
As soon as practice but not more than 15 minutes after engine start
During ground operations with Engine Anti-Ice on and the OAT at or below 3 degrees, engines may not be operated for more than___ without a ____ or___
30 minutes without a sunup or visual inspection
When can we use wing anti-ice after takeoff?
Not until after first power reduction
What are the extreme North adn South Latitudes that define Polar Operations?
78 degrees North and 60 degrees South
About 73 degrees North Latitude (but less than 78 degrees) do not___
Operate IFR or at night into airports whose nav aids are referenced to magnetic north
VNAV- If leveling of after changing between QNE and QNH do not use VNAV for the level off if ___
QNH is less than 29.70hg / 1006hPa
