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UAL B757/B767 Ops Limits
UAL Boeing 757/767 Operational Limitations
Terms in this set (92)
Turbulence Penetration Airspeeds
10,000 Feet and Above 290KIAS/.78 Mach
Below 10,000 Feet 250 KIAS
Max Takeoff/Landing Tailwind 752U/763
Braking Action Good, Dry=T/O 40 Land 40
Wet T/O 25 Land 40, -5 if landing on wet or contaminated rwy when asymmetric reverse thrust used
757 Max Operating Altitude
42,000 feet pressure altitude
767 Max Operating Altitude
43,100 feet pressure altitude
AutoLand Wind Limitations
Headwind=25 knots max
Tailwind=10 knots max
Crosswind=25 knots max(15 for CatII/III)
Autopilot Minimum Engage Height
Min Alt for Autopilot on approach
ILS coupled 50ft AGL
Nonprecision approaches 50 ft below MDA/DA
Autolandings Touchdown and Rollout
Autopilot Limitations Engine out
Go Around on a single autopilot is prohibited until reaching 800 AGL or engine-out acceleration altitude, whichever is applicable.
Approach Cat of Airplane Operations
757 Strait in Cat C, 767 Cat D, Both Circle Cat D
752u, 763=10 knots
Flight Maneuvering Load Acceleration Limits
Flaps Up = +2.5g to -1g
Flaps Down = +2g to 0g
752U Maximum Takeoff and Landing Altitude
8,400 feet pressure altitude
767 Maximum Takeoff and Landing Altitude
8,400 feet pressure altitude
Indicated by the Max Airspeed Pointer on the Airspeed Indicator.
270 knots / 0.82M Whichever is lower.
Flap Placard Speeds (757)
Flaps 1: 240 / Flaps 5: 220 / Flaps 15: 210 / Flaps 20: 195 / Flaps 25: 190 / Flaps 30:162
Flap Placard Speeds (B767-300ER)
Flaps 1: 250 / Flaps 5: 230 / Flaps 15: 210 / Flaps 20: 210 / Flaps 25: 180 / Flaps 30:170
752U Max Taxi Weight
752U Max Takeoff Weight
752U Max Landing Weight
752U Max Zero Fuel Weight
763 Max Ramp Weight
7673 Max Takeoff Weight
763 Max Landing Weight
763 Max Zero Fuel Weight
Max altitude for flap extension
Configuration Deviation List
The airplane must be operated in accordance with airplane limitation, and as amended by CDL.
Flight Deck Door and Flight Deck Access System
Mandatory pre-flight check. If Left Main DC Bus is unpowered, place the Flight Deck Access System Switch in OFF, and use deadbolt to lock door. The deadbolt position allowing key access is for ground use only.
Max Cabin Pressure Differential
Max Differential Pressure for Takeoff and Landing
757 Isolation Valve
Isolation Valve must be CLOSED except when required for start ground operation of the air conditioning system or non normal operations.
757 Equipment Cooling Ground Operation
Electrically powered for more than 20 minutes on the ground. 34C-40C=One forward and one aft entry door on opposite sides open, or at least one pack or ground equivalent. 41C-49C= At least one pack or ground equivalent. More than 49C= two A/C packs or equivalent ground cooling.
Engine anti-ice must be ON...
During all ground and flight operations when icing conditions exist or are anticipated, except climb or cruise below -40C SAT. Engine anti-ice must be ON prior to and during descent in icing conditions at or below 10C in flight -even below -40C SAT. Do not rely on airframe visual cues to turn engine anti-ice on.
Wing Anti Ice for takeoff
Do not use until after the first power reduction.
Ground Ops in Icing
If 3C or below advance engines to 50%N1 as soon as practical but no more than 15 min after start. No runup in 30 min must shut down and inspect, avoid greater than 40%N1 while taxiing to shutdown.
Minimum Altitude for Use of Autopilot
After takeoff or missed do NOT engage A/P below 800 AGL. Do NOT use the A/P below 100 RA at airports with pressure altitude above 8400 feet.
Starter Re-engagement Speed
First Attempt 0%N2, Second Attempt 0%N2
Approved for all phases of fight
VHF Radio Voice Communication
Do not use the center VHF for ATC comm with ACARS operational.
Engine Limit Display Markings
Max and min = Red
Caution = Amber
Flight crew shall NOT blank the engine vibration display during takeoff.
752U/763 Minimum Oil Quantity to start engines
15 Quarts, as directed by MX but must be shutdown and verified before flight.
752U 763 Minimum Oil Temperature prior to takeoff power
757 Maximum Oil Temperature for up to 20 minutes
757 Maximum Oil Temperature for Continuous operation
Must be on for takeoff and landing. Engine Start selectors in CONT for severe turbulence
752u Maximum RPM Limits
N2 100.0% (100.7% transient for 5 sec)
763 Maximum RPM Limits
B752U EGT Limits (Starting)
545(red) variable (2 degrees per seconds over 30 sec period only if actual exceeds 485)
B752U EGT Limits (Takeoff/Go-around)
645 (5 minutes), 660 (5 seconds)
B752U EGT Limits (Max Continuous)
615 Amber, 630 (5 seconds)
B752U EGT Limits (Inflight Start)
645 Red Radial momentary
B763 EGT Limits (Ground Starting)
535 Red Radial
B763 EGT Limits (Inflight Start)
650 red radial
B763 EGT Limits (Takeoff/Go-Around)
650 (red) (5minutes)
B763 EGT Limits (Max Continuous)
625 (amber) continuous
Avoid rapid large alternating control inputs, especially with large changes in pitch, roll, or yaw as they may result in structural failure even below Va.
Single FMC VOR approach requirements
One pilot must have raw data from the VOR on the RDMI, RMI, or HSI in the VOR mode no later than FAF.
757/767 Fuel Pump Warnings
Do NOT reset a tripped fuel pump or fuel pump control circuit breaker. Intentional dry running of a center tank fuel pump is prohibited. Center tank fuel pumps must NOT be "ON" unless personnel are available on the flight deck to monitor LOW PRESS lights.
767 Lateral Fuel Imbalance
Max imbalance between left and right main tanks is 2500 pounds when total main tank fuel is 48,000 pounds or less. Linear reduction to 1500 pounds when total main tank fuel is 79,800 pounds. 1500 pounds when total main tank fuel exceeds 79,800 pounds.
Use fuel distribution guides to assure compliance.
Alternate Fuel Loading 757
2000 pounds loaded in center with less than full wings, provided the weight of fuel in center plus actual ZFW does not exceed Max ZFW, and balance limits observed.
Alternate Fuel Loading 767
22,050 pounds loaded in the center tank with less than full wing tanks (fuel jettison operational no less than 10,300 pounds of fuel must be in wing tanks), provided the weigh of fuel in center tank plus ZFW does not exceed max ZFW, and balance limits observed.
All center tank fuel (except ballast) must be consumed before using main tank fuel.
Max tank fuel temperature using all fuel types
Minimum fuel temperature
At least 3C above the freezing point of the fuel, or -45C(763: -43), whichever is warmer.
Use of JP-4 / JET B
Do not conduct with less then 1000 pound imbalance between main tanks
Minimum Oil Pressure
752U: 70 psi idle 80 psi other than idle
763: 70 psi
Icing exists on ground when
10C or below OAT AND visible moisture. (i.e. clouds, fog/mist w/vis of 1 mile or less, rain, snow, etc or when snow, water, or slush may be ingested
Icing exists in air when
10C or below TAT AND visible moisture. (i.e. clouds, fog/mist w/vis of 1 mile or less, rain, snow, etc
752U/763 Minimum Oil Quantity to start engines inflight
Inflight with 0 indication ok as long as all other indications normal.
Max Flap extension Altitude
20,000 feet MSL
757 main fuel tanks capacity
757 center tank capacity
757 total fuel capacity
757 fuel config light
center pump not selected with >1200 in center
lateral fuel imbalance >1800
either main <2200
757 ground service bus
powers battery chargers, left forward fuel pump, cabin lts, & service outlets. normally powered by right main.
767 fuel config light
lateral fuel imbalance >2000+\-500
767 fuel jettison rate
767 indicator lights test
failure to hold for 3 seconds disrupts test and may require mx action.
757 APU for pneumatic air
wait one minute before establishing air
757 crossbleed start
advance engine ~70%N2 to ensure pressure
757 APU can provide air to what altitude
normal speeds, control shuts off air at 23,000 ft in climb; restores at 20,000 feet during descent
757 Cat III
1500 RA FCCs self test
1420 RA L/R A/Ps engage F/D command bars disappear, LAND 3 appears on ASA
763 Flt deck door automatic unlock
Flt deck door selector...rotate to DENY and hold for one second
CABIN ALTITUDE or rapid depressurization or emergency descent
Oxygen masks and regulators...on,100%
Smoke, fire, or fumes
Oxygen masks and regulators...on,100%
Dual engine failure
Eng start selectors (both)....FLT
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