Limitations Flashcards
Approved Operations
IFR, VFR
For wingspan-limited taxi operations, the Aircraft Design Group identifiers are:
– Group V (FAA)
– Code E (ICAO)
Straight-in instrument approaches: Category C, (322) Category D
– Circling approaches: Category D
Night flight
• Icing conditions
• Extended operations (up to 240-minute ETOPS)
OPERATING PRESSURE ALTITUDE
43,100 feet
TAKEOFF/LANDING PRESSURE ALTITUDE
8400 feet
RUNWAY SLOPE
± 2%
TAKEOFF/LANDING TAILWIND COMPONENT
15 knots
Flaps 1
A BC 322
240 255 265
Flaps 5
A BC 322
220 235 245
Flaps 15
A BC 322
200 215 230
Flaps 20
A BC 322
190 195 225
Flaps 25
A BC 322
180 185 200
Flaps 30
A BC 322
170 170 180
MAXIMUM LANDING GEAR SPEED Operating speed (VLO/MLO
270 knots/.82 Mach
MAXIMUM LANDING GEAR SPEED Extended speed (VLE/MLE)
270 knots/.82 Mach
MAXIMUM OPERATING SPEED – VMO/MMO
ABC 330/.87 322. 350/.89
DESIGN MANEUVERING – VA
281 298 330 at SL
Severe turbulence at and above 25,000
feet (Recommended)1
280 KIAS/.82 Mach
(whichever is lower)2
Severe turbulence below 25,000 feet
(Recommended)1
270 KIAS2
In severe turbulence:
Maintain a minimum speed of 15 knots above the minimum maneuvering
speed (amber band) at all altitudes when the airspeed is below .82 Mach
Passenger Oxygen Masks Deployed
Supplemental Oxygen Available
14,000 feet (terrain permitting)
Passenger Oxygen Masks Deployed
Supplemental Oxygen Not Available
10,000 feet (terrain permitting)
Landing Crosswind Guidelines
Runway Condition Code Control / Braking Action Crosswind Component2
(knots)
6 — 45
5 Good 40
4 Good to Medium 35
3 Medium 25
2 Medium to Poor 17
1 Poor 15
01 Nil
LAHSO
Required Runway Length (feet)
Elevation < 2000 feet
8100
LAHSO
Required Runway Length (feet)
Elevation ≥ 2000 feet
8700
(Takeoff and Landing) Pressure Altitude
8400
GROSS WEIGHT LIMITATIONS
Taxi 547.0 650.0 657.0 777.0
Takeoff 545.0 648.0 656.0 775.0
Landing 445.0 460.0 470.0 554.0
Zero Fuel 420.0 430.0 440.0 529.0
(322) The forward-facing flight attendant jump seats at door 2L/R
may not be
occupied during taxi, takeoff, and landing
LOWER CREW REST COMPARTMENT (AS INSTALLED) (200B)
The lower crew rest compartment may not be occupied and the main entry
hatch must be closed during taxi, takeoff, and landing.
OVERHEAD ATTENDANT CREW REST (OACR) (322)
The OACR is to be occupied by crewmembers only if they have been
trained in use of the crew rest evacuation routes, firefighting procedures, and
depressurization procedures.
DOOR-MOUNTED POWER ASSISTS AND ESCAPE SLIDES
Main door emergency power assists and evacuation slide systems must be
armed with the mode select handle in the ARMED position prior to taxi, takeoff,
and landing whenever passengers are carried.
Girt bar indication flags are visible through windows in the doorway liner when
the door is in ARMED mode.
PRESSURIZATION
Maximum differential pressure (relief valves)
9.1 PSI
Maximum differential pressure for takeoff and landing
0.11 PSI
UNPRESSURIZED FLIGHT
Maximum altitude when aircraft is dispatched for unpressurized flight is 10,000
feet MSL.
WING ANTI-ICE
Do not select WAI to ON during takeoff until after the first thrust reduction.
Ground Operations
ENGINE ANTI-ICE must be ON (not AUTO)
when OAT is 10°C or less and icing
conditions exist.
During ground operations when engine anti-ice is required and OAT is 3°C or
below
the engines must be run up for 1-2 seconds to a minimum of 50% N1
at intervals not to exceed 15 minutes
Flight Operations
ENGINE ANTI-ICE must be AUTO or ON
when TAT is 10°C or less and icing
conditions exist or are anticipated, except during climb, cruise, and descent
when SAT is below -40°C.
� Icing conditions exist
when OAT (ground) or TAT (flight) is 10°C or below
Visible moisture (fog with visibility of 1 SM or less, rain, sleet, snow, ice pellets,
or other forms of moisture) is present, or
• Standing water, ice, slush, or snow is present on the ramps, taxiways, or
runway surfaces.
On takeoff or missed approach, do not engage autopilot below:
Two-engine or single-engine operations:
�200 feet AGL
Non-ILS
�Autopilot must be disengaged before the aircraft
descends more than 50
feet below the MDA/DA, unless in the go-around mode.
�Do not use flight level change pitch mode (FLCH) on final approach below
1000 feet AFE.
Autoland approaches are not approved
with flaps 25.
�Without LAND 2 or LAND 3 annunciated
the autopilot must be disengaged
below 200 feet AGL.
AUTOLAND LIMITATIONS
Headwind 25 knots
Tailwind. 15 knots. (10 knots for CAT II/III)
Crosswind. 25 knots. (15 knots for CAT II/III)
ILS Glideslope Angle
Maximum 3.25°
Minimum 2.50°
Automatic landings can be made
using flaps 20 or 30 with one or two engines
operating. The autopilot flight director system (AFDS) autoland status
annunciator must display either LAND 2 or LAND 3.
A flaps-20 automatic (or manual) landing
may be accomplished only when
directed by procedure
Autoland must be used when weather conditions are
below CAT I minimums
Do not attempt an automatic landing on any runway that
has a glideslope
unusable below a given altitude or offset localizer note on the approach plate
page.
Autoland landing cannot be made if
the SLATS DRIVE EICAS message
is displayed.
Minimum threshold crossing height
40 feet
Do not attempt an automatic
landing on any runway that has a glideslope height above threshold (shown on
approach plate page)
less than 40 feet.
The 777 is not certified for autolandings at weights
in excess of max landing
weight.
The 777 is not certified for autolandings with loss of
two or more elevator hydraulic actuators.
(Loss of hydraulic systems R or C results in loss of only
one hydraulic actuator;
Loss of hydraulic system L or any combination of L, C,
and R results in loss of two or more hydraulic actuators.)
APU ALTITUDES – MAXIMUM
For APU start 43,100 feet
Pack operation 22,000 feet
APU STARTER DUTY CYCLE
3 Start attempts in a 60-minute period (electric starter only)
Time after three consecutive start attempts (air turbine only) 5 minutes
Do not start APU during
fueling operations following an APU automatic shutdown
or failed start.
HF RADIO
�Do not transmit on the HF radio during fueling operations.
SATCOM PHONE
(322) Do not use SwiftBroadband (SATCOM R) service
for ATC communications.
WIRELESS DEVICES ON FLIGHT DECK
KEEP ALL WIRELESS DEVICES AFT OF THROTTLE QUADRANT OR
SECURELY MOUNTED TO APPROVED MOUNT LOCATIONS WHEN
ENGINES OPERATING FOR THE PURPOSE OF FLIGHT
When this placard is installed, wireless devices may be used as stated on
the placard. If the placard is not installed, the electronic display units (DUs)
have been modified to mitigate EMI effects, and the use of wireless devices is
permitted, without restriction..
REVERSE THRUST
Backing the aircraft with use of reverse thrust is prohibited.
• Intentional selection of reverse thrust in flight is prohibited.
• Do not attempt a go-around after thrust reverser deployment
ENGINE OIL PRESSURE – MINIMUM (200A/B)
70 PSI
Negative-g operation below 10 PSI is limited to the following: (200A/B) 30 seconds
ENGINE OIL PRESSURE – MINIMUM (200C/322)
10 PSI
Negative-g operation below 10 PSI is limited to the following: (200C/322) 15 seconds.
Maximum Assumed Temperature
The amount of thrust reduction must not exceed 25%, (322) 40% of the full-rated
takeoff thrust
Sabre and the FMC comply with this limitation programmatically. Pilot
action is not required.
ENGINE OIL QUANTITY
Minimum prior to engine start �18 quarts
After engine start, oil quantity indication may be lower.
Min Oil Irregular OPS
During irregular operations not caused by oil-related issues, the flight may depart on a
non-ETOPS flight of less than 3 hours with 16 quarts, or less than 2 hours with 12 quarts.
CROSSWIND AND TAILWIND THRUST LIMITS
322) During ground operations (exclusive of takeoff)
in tailwinds and crosswinds
between 30 and 45 knots,
limit thrust to a maximum of 70% N1.
Avoid thrust levels above that required for normal taxi operation in all tailwinds and crosswinds
greater than 45 knots.
FLIGHT CONTROLS
Takeoff is permitted only in the normal flight control mode.
• Avoid rapid and large alternating control inputs, especially in combination with
large changes in pitch, roll, or yaw (e.g., large side-slip angles) as they may
result in structural failure at any speed, including below VA.
SPEED BRAKES
Do not use speed brakes in flight below 1000 feet AGL.
GROUND MANEUVER CAMERA SYSTEM (322)
Do not use the ground maneuver cameras during takeoff, approach, and landing.
RVSM OPERATIONS
• On ground, maximum allowable difference between Captain’s or First Officer’s
altitude display and the field elevation: 75 feet.
• In flight, maximum allowable difference between Captain’s and First Officer’s
altitude displays: 200 feet.
• EICAS advisory message SGL SOURCE AIR DATA is not displayed.
• EICAS advisory message NAV AIR DATA SYS or AIR DATA SYS is not
displayed.
When required to cruise at altitudes below optimum due to air traffic, atmospheric
conditions, or non-normal procedures and no further step climbs are planned,
set the FMC STEP
size to zero. This ensures best available FMC FUEL and
ETA predictions.
FMC-CALCULATED TAKEOFF SPEEDS – ALTERNATE FORWARD
CENTER OF GRAVITY (322)
When operating at an alternate forward center of gravity limit for takeoff,
disregard the FMC-calculated takeoff speeds, if displayed. Determine takeoff
speeds from the Sabre Takeoff Data message.
Note: Alternate forward C.G. and V-speed calculations are automated in Sabre.
Pilot action not required to comply with this limitation.
AIR DATA INERTIAL REFERENCE UNIT (ADIRU)
Do not align ADIRU at North/South latitudes greater than 78°, 14.75 minutes.
DEMONSTRATED 777 REQUIRED NAVIGATION PERFORMANCE (RNP)
FLIGHT OPERATIONS VALUES (NM) FOR MODE OF FLIGHT
Mode of Flight FMS Updated by GPS
Autopilot ON and LNAV 0.11 RNP
FMS Not Updated
by GPS 0.28 RNP
The use of VNAV and LNAV with QFE
selected is prohibited.
Main tanks must be scheduled to be full if center tank fuel is loaded.
The center tank may contain up to 3000 pounds of fuel with less than full
main tanks, provided center tank fuel weight plus actual zero fuel weight
does not exceed the maximum zero fuel weight, and the center of gravity
remains within limits.
Max imbalance unless light a/c
3000 lbs.
HYDRAULICS QUANTITY
Above RF
TIRE – MAXIMUM SPEED
204 knots groundspeed
Engine Start EGT
A & B
C & 3
535 C
750 C
