Limitations Flashcards
Under what conditions is an A320 in a Forward CG envelope?
CG less than 25%
Maximum Pressure Altitude -
Takeoff/Landing
9,200 feet
What is the allowable range of Flex Temps for Takeoff?
Lowest Temp: actual OAT or flat rated temp.
Highest Temp
- (319) Standard OAT + 65 deg. C
- (320) Standard OAT + 55 deg. C
Maximum Runway Slope
+/- 2%
Minimum Normal Runway Width
148 feet
Minimum Narrow Runway Width
100 feet
What aircraft restrictions exist for takeoffs from narrow runways?
- Nose wheel steering must be operative.
- All Brakes must be operative.
What aircraft and procedural restrictions exist when taking off from a normal runway that is plowed to a width between 148 and 100 feet?
- Nose wheel must be operative.
- All brakes must be operative.
- TOGA thrust mandatory.
What procedural and operational guidelines exist when landing on narrow runways?
- Autoland Not Authorized
- Diversion to a normal width runway is recommended in case of:
- Rudder Jam
- Rudder Pedal Jam
- Yaw Damper Fault
- No Nose Wheel Steering
- Any Wheel Brake Inoperative
A319 Maximum Takeoff Weight?
166,400
A319 Maximum Taxi Weight
167,300 pounds
(900 pounds more than maximum takeoff weight)
A320 Maximum Takeoff Weight
169,700 pounds
A320 Maximum Taxi Weight
170,600 pounds
(900 pounds greater than Maximum Takeoff Weight)
A320 Maximum Landing Weight
142,200 pounds
A319 Maximum Zero Fuel Weight
128,900 pounds
A320 Maximum Zero Fuel Weight
134,400 pounds
Operating Speeds - Both FMGCs Inop
.78 Mach / 290 KIAS
Best Climb Rate
280 KIAS
Best Climb Angle
Green Dot
Pressure Altitude Maximum with Passenger Oxygen Masks Deployed?
10,000 feet (terrain permitting)
Maximum wind for passenger door operation?
65 knots
Maximum speed flight deck window open?
200 KIAS
Maximum speed for Windshield Wipers
230 KIAS
Maximum Cabin PSI (Safety Relief)
8.6 PSI Differential
Maximum Negative Cabin Pressure Differential?
-1.0 PSI differential
What is the cabin pressure differential requirement to open the Ram Air Inlet?
Open only if cabin differential pressure is less than 1 PSI.
What restrictions exist when using HP ground air (HP Ground Unit)?
Do not use HP ground air with APU bleed air to avoid bleed system damage.
What restriction exists with powering the electrical system on the ground in extremely hot weather?
The electrical system should not be powered for more than 2 hours without a cooling system when OAT is above 49 degrees C.
Maximum cabin altitude?
10,000 feet - exceptions to maintain MEA or in an emergency
What restriction exists which using external conditioned ground air on the ground?
Using external conditioned air simultaneously with the packs is prohibited. (… to Prevent chattering of the non-return valve.)
When can you use Wing Anti-Ice on the ground?
Never! Wing Anti-Ice is not permitted on the ground.
What bleed source is required for use of Wing Anti-Ice
Engine Bleed Air- use of APU bleed air for wing anti-ice is not permitted
Some United Airbus aircraft have Autoland restrictions at what airports?
Seattle, Vancouver, Anchorage, Fairbanks and St John’s (4 Pacific - 1 Atlantic)
Autoland capability has been demonstrated at what airport facilities?
- CAT II and III ILS beams
- Glideslope angles between -2.5 & 3.15 (inclusive)
- Airport elevation up to 6,500
ROLL OUT mode (Autoland) has been demonstrated under what runway conditions?
Dry & Wet Runways
Autoland - Maximum Winds - A319
Headwind: 20 Knots (15 Knots- Single Engine)
Crosswind: 20 Knots (15 Knots - UAL) (10 Knots - Single Engine)
Tailwind: 10 Knots (5 knots if Flaps 3) (5 knots if Field Elevation > 5,750 feet)
Autoland - Maximum Winds - A320
Headwind: 30 Knots
Crosswind: 20 Knots (15 Knots-UAL)
Tailwind: 10 Knots
What are the Reverse Thrust restrictions when auto landing?
When autolanding with an inoperative engine or reverser, use of the remaining reverser is limited to idle reverse.
Maximum pitch attitude for Autopilot engagement?
18 Degrees
How many seconds after liftoff may the autopilot be engaged?
5 seconds
Autopilot Minimum Engagement Height - Go-Arouns
100 Feet
Autopilot Minimum Engagement Height - Circle to Land
500 Feet
Autoland Minimums: CAT 2 (Fail Passive)
100 Feet DH
Autoland Minimums: CAT 3 (Fail Passive)
50 Feet DH
Autoland Minimums: CAT 3 (Fail Operational)
100 Feet AH
When conducting a Single Engine Autoland, what is the required Flap Configuration.
Flaps Full
Autoland requires which FMA indication?
CAT 3 Single or CAT 3 Dual.
(Autoland not authorized with CAT 1 or CAT 2 FMAs)
What restriction exists when Autolanding with Asymmetric Reverse Thrust?
Operable reverser is limited to reverse idle only.
Maximum continuous load per generator?
100% (90 KVA)
Maximum load per Transformer Rectifier (TR)?
200 amps
Maximum duration for a Takeoff/Go-Around Thrust setting? (Flex or TOGA)
5 minutes
Note: Increased to 10 minutes with an engine out.
Maximum EGT for TOGA or FLEX thrust setting?
635 Deg. C
Maximum N1/N2 speed for Flex or TOGA thrust setting?
100%
Minimum Engine Oil Pressure?
60 PSI
Maximum Engine Oil Temperature?
165 Deg C - (15 minute duration)
155 Deg C - (No time duration- Continuous)
What are the engine warm up requirements?
1) To ensure center tank pump test completion- both engines must operate for a minimum of two minutes before takeoff
2) To avoid thermal shock - an engine shut down for more than 2 hours must operate for a minimum of 5 minutes prior to takeoff
Engine Cool Down Requirements?
1) Allow the engines to operate for 3 minutes prior to shutdown
2) If reverse limited to Idle on landing, reduce time to 2 minutes after clearing the runway.
When is reverse thrust on the ground prohibited?
Power-Back Operations
