Limitations Flashcards
Approved Operations
Visual (VFR)
Instrument (IFR)
Icing
Extended Overwater (ETOPS, except -200SF)
Runway slope
+/-2 percent
Max operating altitude
43,100’ PA
Max T/O and LDG alt
8,400’ PA
Max t/o and ldg tailwind
10 kts
Ground wind limits for entry and lower cargo doors
40 kts while opening or closing
While open:
- 65 kts (-300)
- 60 kts (-200)
Main deck cargo compartment door operation
May be operated and held at CANOPY or FULLY OPEN in steady wind up to 40 kts
If FULLY OPEN, block wind with fuselage
If winds oscillate door or exceed 40 kts, move to CANOPY
Wind gusts up to 60 kts in CANOPY only
MTW (641GT)
409,000 lbs
MTOW (641GT)
408,000
MLW (641GT)
320,000 lbs
MZFW (641GT)
295,000
Min inflight weight (641GT)
179,000
Turbulent air penetration speed
290/.78 Mach (whichever lower)
Preflight Oxygen Quantity
1350 ETOPS
1250 nonETOPS
Supplemental Oxygen Bottles (-300 Freighter)
O2 bottles with masks by supernumerary seats, rigid barrier, and crew lab must be full before flights with supernumeraries.
Portable bottle with mask must be stored in supernumeraries area
When must the smoke barrier door be closed?
Taxi, takeoff, flight and landing
Max cabin diff pressure
- 10 psi
0. 125 psi (for T/O and LDG)
APU Start cycle limits
3 attempts in 60 minutes
Time between attempts (APU selector OFF) 1 min
APU Bleed Air limit
17,000’
Autopilot engaged- Aileron trim
use of aileron trim with autopilot engaged prohibited
Autopilot engaged minimum altitudes
Takeoff/Go-Around: 250’ AGL
Non-ILS approach: 50’ below MDA/DA
Single Channel ILS: 100’ AGL
Autoland (two or three autopilots): touchdown/rollout
Autoland with erroneous RA
Do not use autoland with either L or R RA providing erroneous altitude
Flap setting with autoland
25 or 30
Glideslope angle w/autoland
max 3.25 degrees
min 2.5 degrees
Autoland wind limitations
HW/XW: 25 kts
XW CAT II/III: 15 kts
Tailwind: 10 kts
HF Radios
DO NOT USE during REFUELING
Circuit breaker reset policy
Reset of FUEL PUMP or FUEL PUMP CONTROL prohibited in flight.
Reset not recommended, if required reset once after 2 min cooling period
Engine Starter Duty Cycle
Continuous for 5 minutes
Cool for 30 seconds per minute of operation
Engine starter re-engagement N2
0% recommended
0-20% Permissible
21-30% only in case of fire
>30% may result in starter damage
Continuous ignition must be on encountering:
Eng start selector in the CONT position when:
Mod to heavy rain Mod to severe turb Volcanic Ash Icing conditions Standing water or slush on runway
Continuous ignition is automatically provided when engine anti-ice is on or with LE flap extension
Vibration Display
Flight crew shall not blank engine vibration display during takeoff
Reverse Thrust
Don’t use in flight
Don’t back up with reverse thrust
Flaps
Max altitude with flaps extended is 20,000’
Maneuvering Load Limits
Flaps Up +2.5/-1.0
Flaps Down +2.0/0.0
Speedbrakes
Do not extend in flight with flaps 25 or 30
Do not extend in flight below 800’ AGL.
UNABLE RNP
Pilots MUST go around unless visual references can be established and maintained
Approaches NOT AUTHORIZED
FAA: RNAV (RNP)
ICAO: RNP (AR)
RNAV (RNP1) Departures- with Radius-to-fix (RF) required
Fuel Loading (-300)
Center tank: 85,200 lbs
L/R Main tanks: 43,097 lbs
Fuel Loading (-200)
Center tank: 30,551 lbs
L/R Main tanks: 43,097 lbs
Fuel Usage 1 (no center take fuel)
Use tank-to-engine fuel feed for t/o and ldg with all operable main tank boost pumps on and the crossfeed valves closed
Fuel Usage 2 (fuel in center tank)
Use center tank fuel for all ops with all operable boost pumps on and the crossfeed valves closed until center tank fuel is depleted, then use *Fuel Usage 1
Center tank fuel pumps
must be OFF when CTR L/R FUEL PUMP message
Both center tank fuel switches must be OFF when above message
Max fuel imbalance
2,500 lbs when total main tank is 48,000 lbs or less
1,500 lbs when total main tank fuel exceeds 79,800 lbs
Fuel Tank Temperatures
Must be at least 3C above fuel freezing point
Max fuel temp 49C
Jet B and JP4 fuels prohibited
Engine and wing anti-ice
ON when icing exists except when OAT below -40C SAT
Auto ice detection switches in AUTO during flight
Must be on when thrust reduced for descent or speed reduction in visible moisture with the TAT less than 10C including SAT less than -40C
Ops in Ice Crystals (GE)
engine anti-ice ON when ice crystal conditions exist, even below -40C
Auto ice detection ON
Window Heat
ON for all normal flight conditions
RVSM
Max diff between alts is 200’ in flight
Flap Speed (-300)
1--250 5--230 15--210 20--210 25--180 30--170
Flap Speed (-200)
1--240 5--220 15--210 20--195 25--190 30--162
Landing Gear operating and extended
270/0.82 Mach (lower)
GPWS
Look-ahead function prohibited within 15 mn of takeoff, approach or landing at airports not in GPWS database
Prohibited during QFE operations
Ground Proximity Terrain Override to OVRD if:
FMS in IRS NAV only
prior to takeoff, FMS position updating not accomplished or runway position not verified
Weather Radar
Avoid operation in hangar or within 50’ of fueling ops or fuel spill
Avoid operating when people in area normally enclosed by aircraft nose radome