# Limitations Flashcards
Runway slope
Maximum operating altitude
Maximum takeoff and landing altitude 767-300
Maximum takeoff and landing tailwind component
± 2%
43,100 feet pressure altitude
8,400 feet pressure altitude
767-300 10 knots
Severe turbulent air penetration speed is:
290 KIAS/.78 Mach, whichever is lower
Do not operate HF radios
during refueling operations
Do not use FLCH below ?
below 1000 feet AFE on final approach
Maximum pitch up
25 degrees, regardless of flight director commands. This limitations does not apply to abnormal or emergency situations such as windshear escape maneuvers
Pegasus FMC does not support operations at what latitude ?
Greater than 87 north or south
Avoid weather radar operation when ? How about testing the radar ?
In a hangar, or within 50 feet of fueling operations or a fuel spill. Also avoid around ground personnel.
Note: The hangar recommendation dues not apply to weather radar test mode.
RVSM Altimeter Cross Check Limits in flight?
Between captain and F/O difference Sea level, up to 5000ft and up 10,000 ft ?
Between any altimeter and field elevation ?
Maximum allowable inflight difference for RVSM is 200 feet
40 feet ,45 feet , 50 feet
75 feet
Max taxi
Max takeoff
Max landing weight
Max zero fuel weight
Note: Minimum inflight weight does not include usable fuel.
After takeoff, the autopilot must not be engaged below
200 feet AGL
Minimum altitude for the use of autopilot enroute
1000 feet AGL (except for approaches)
The autopilot must be disconnected no later than on approaches
50 feet below DDA/DA(H) and at or above 50 feet AGL on all approaches.
Can we perform AUTOLANDs at any airport ?
Automatic landing systems must be authorized in an operations specification issued to AJT ops specs
Use of aileron trim with the autopilot engaged
prohibited
Company policy prohibits engaging the autopilot after takeoff prior to the selection of a
Vertical mode
Autoland wind limitations
Head 25 crosswind 25 tailwind 10
Maximum allowable crosswind when landing weather minima are predicated on CAT II or III autoland operations.
15 knots
SATCOM VOICE COMMUNICATION limitation
Voice communication with ATC via the SATCOM system is prohibited. Use of the SATCOM system during approach and landing is prohibited.
VHF limitation
Do not use the center VHF for ATC communication with ACARS operational.
When can we deviate a ATC clearance ?
Pilots are authorized to deviate from their current ATC clearance to the extent necessary to comply with a TCAS II resolution advisory.
APU starter duty limitation
The starter duty cycle is a maximum of 3 consecutive starts or attempts within 60 minute period with a 5 minute cooling period between attempts.
EICAS display limitation
Flight crew shall not blank engine vibration display during takeoff.
Normal starter duty cycle
Extended duty cycle
Five (5) minutes ON, followed by one and one half (1 1/2) minutes OFF.
1) Five (5) minutes ON, followed by one and one half (1 1/2) minutes OFF. 2) Two (2) consecutive five (5) minute cycles require a ten (10) minute cooling period before additional five (5) minute cycles.
Recommended Starter re engagement
Permissible starter re engagement
Permissible for purging or to clear a fire
0% N2
0-20% N2
21-30% N2 Re engagement above 30% may result in gearbox damage.
Maximum and minimum limits markings color
Precautionary range markings color
Red
Amber
Starting max egt limit transient
Starting max egt limit unlimited
During a Dual engine fire what are the restart limits ?
870 c
750 c
Use the standby engine indicator max EGT limit
Engine oil system
Min pressure
Max oil temp
Min oil QTY
10 PSI
160 C ( continuous operation )
17 quarts
Intentional dry running of a center tank fuel pump (CTR L FUEL PUMP or CTR R FUEL PUMP message displayed on EICAS)
Prohibited
The minimum inflight fuel tank temperature and maximum
The minimum inflight fuel tank temperature is 3°C (5°F) above the freeze point of the fuel being used.
The maximum fuel temperature is 49°C
Use of JP-4 and Jet B fuels
revenue operations is prohibited.
Center tank limitation
The center tank may contain up to 22,050 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 center of gravity limits are observed.
Reverse thrust
Reverse thrust is for ground use only.
# Backing the aircraft with the use of reverse thrust is prohibited.
Maximum fuel imbalance
( No center tank fuel )Normal fuel tank and crossfeed operations
Main tank fuel pumps on and crossfeed valves closed.
Open crossfeed valve(s) for minimum fuel operations or to correct/prevent fuel imbalance.
When may we reset a tripped fuel pump or fuel pump control circuit breaker ?
We may not reset any of the listed above .
Center tank fuel pumps INOP limitation
No fuel may in the center tanks except fuel in the manifold drained after each fueling operation
The maximum altitude with flaps extended is
20,000 feet
Flight control inputs limitation
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.
Main deck cargo door may be operated and may be held at CANOPY or FULLY OPEN position in steady winds up to what speed ?
What is the wind gust limit and what position is allowed?
40 knots
If winds exceed 60 knots or if door starts to oscillate, lower the door to the CANOPY position. Wind gusts up to 60 knots allowed in CANOPY position only .
When can we exceed the operating limit speed? How do we know our VMO ?
The maximum operating limit speed shall not be deliberately exceeded in any regime of flight.
VMO is indicated by speed limit on the airspeed indicator .
LEGACY FMC limitation if approach is predicated with the use of DME data associated with a ILS or LOCALIZER
correct tuning of the DME(s) must be verified by aural station identification or DME data cross comparison between left and right DMEs prior to executing the approach..
Do not operate under IFR or at night into airports when ?
north of 73° North or south of 60° South Latitude whose navigation aids are referenced to magnetic north.
If the ice detection system activates do we use ANTI ICE ?
The ice detection system on the 767 is advisory only and should not be used to determine the need for activation of engine or wing anti-ice systems
When should wing or engine anti ice be turned on ?
Engine and wing anti-ice must be turned on and off by crew awareness of temperature, visible moisture, and visible ice formation.
Temperature and visual moisture criteria will determine activation of anti ice.
Descent engine anti ice use is required when ?
visible moisture and TAT less than 10°C, including SAT less than -40°C, nacelle anti-ice switch must be in the ON position.
What are the ice and rain requirements for anti ice ?
GROUND/TAKEOFF
FLIGHT ( climb and cruise )
FLIGHT ( descent )
Engine anti ice LIMITATION with ice crystal icing conditions
Engine anti-ice must be ON when ice crystal icing conditions exist, even when the temperature is below -40 degrees C SAT.
What type of icing does the ICE DETECTION not detect ?
Ice crystals
When do you know you are encountering ice crystals condition ?
• Amber or red weather radar returns below the airplane
• Appearance of liquid water on the windshield at temperatures too cold
for rain (the sound is different than rain)
• The autothrottle is unable to maintain the selected airspeed
• TAT indication on EICAS stays near 0 degrees C
Note : TAT normally should increase approximately 2 degrees Celsius per 1000 ft of descent.
Maximum cabin pressure differential ?
Maximum allowable cabin pressure differential for takeoff and landing is :
9.10 psi
236 feet below airport pressure altitude .125 psi
In the event of excessively hot flight deck or main cargo deck temperature, the flight crew must comply with the
Cabin Temperature Hot Procedures contained in Supplementary Procedures
ETOPS : On airplanes with a single fuel crossfeed valve , perform the following operational check:
Prior to each extended operations (ETOPS) flight, an operational check of the fuel cross feed valve must be performed . The task may be performed by the crew or maintenance no earlier than one hour prior.
767 SF : Do not use autopilot below what radio altitude ?
Do not use the autopilot below 100 ft. Radio Altitude at airport field elevations above 8,500 feet.
Do not use the autopilot below 100 ft. Radio Altitude at airport pressure altitudes above 8,400 feet.
767 SF :Auto land wind limitations
Headwind 25 crosswind 25 tailwind 10
767 SF :Maximum takeoff and landing tailwind component
10 knots
767 SF : Maximum takeoff and landing altitude
9,000 feet pressure altitude
