A220 AOM Limitations

What is the A220’s maximum approach path angle?

3.8 degrees

Which document/section shall be referred to if executing an approach that has an approach angle above 3.5 degrees?

Approaches with approach angle greater than 3.5 degrees up to 3.8 degrees in AOM 1.05.00

What are the maximum recommend airspeeds for turbulence penetration in moderate to severe turbulence?

• 265 KIAS when at 10000 ft and below

• 280 KIAS or Mach 0.75, whichever is lower, when above 10000ft

What is the maximum airspeed at which windshield wipers can be operated?

• 250 KIAS

What is the A220’s tire limit speed?

• 195 knots ground speed

What is the maximum airport pressure altitude for take-off and landing?

• 10000ft

What are the Maximum and Minimum ambient temperatures approved for take-off and landing?

• Maximum: 52.5 C

• Minimum: -54 C

What are the two procedures that can be followed in order to take-off when temperatures are below 0 but not below -54?

Procedure A:

→ If turn-around time is limited to 120 minutes, take-off is permitted if the OAT stays at or above -54

→ If turn-around time exceeds 120 minutes, take-off is permitted if the aircraft is electrically powered during the turn-around time and the cabin temperature is maintained to minimize the risk of freezing conditions in the water system

Procedure B:

→ When OAT is between 0 and -30, take-off is permitted

→ Below -30 to -54, operation is prohibited if the airplane, with the engines shut down, has been exposed to a ground ambient temperature below -30 fir a period exceeding two hours in the preceding 12 hours

At which temperature would engine operation be prohibited in the presence of ground fog?

• Below -18 C

When does Cowl anti-ice have to be ON during ground operations?

• When OAT is 10 or below, visible moisture in any form is present and/or when operating on runways, ramps, or taxiways where surface snow, ice, standing water, or slush is present

When are icing conditions deemed to exist in flight?

• TAT of 10 or below and visible moisture in any form is present, except when the SAT is -40 or below

When does the Wing anti-ice system have to be ON during ground operations?

• When OAT is 5 or below, visible moisture in any form is present and/or when operating on runways, ramps, or taxiways where surface snow, ice, standing water, or slush is present

At which altitude shall the WAI be OFF?

• When above 35000ft

At what temperature is it prohibited to select WAI ON?

• TAT above 15

Is operation in Super-cooled Large Droplet icing permitted? How can it be determined that SLD icing is being encountered and what shall be done if encountering SLD icing?

• No, it’s prohibited

• Indicated by ice accretion on the flight compartment side windows

• CAI and WAI ON and leave icing conditions when side windows icing occurs

In what conditions does engine ice shedding have to be performed? When would they have to be performed and how?

• When OAT is 3 or below and visible moisture in any form is present

• First run-up would be performed as soon as practicable during taxi-out and then at intervals not more than 30 minutes

• Run-ups are done by increasing the power to a minimum of 60% N1 momentarily

What would be a symptom of engine operation in icing conditions for extended periods of time? What would have to be done in this situation?

• Engine vibrations, even with anti-ice ON

• Engine ice shedding in flight, by increasing thrust to CLB momentarily

What changes have to be made to approach speeds when there is evidence of ice accretion?

• Vref, Vac and Vga have to be increased by 5 KIAS if flaps 5 is used

What’s the maximum tailwind component approved for take-off, and what should be referred to when taking off with more than 10 Kts of tailwind?

• 15 knots

• Standard Operating Procedures, Take-off, High Wind Procedure and AOM 1.05.00 Take-Off and Landing with Tailwind Components Greater than 10 Knots

Which emergency procedure has to be completing via the QRH and not the ECL?

• Smoke/fire/fumes procedure

What is the maximum amount of time that doors can be closed with passengers onboard and with packs off/no ground ventilation?

• 15 minutes

What is the maximum time of operation when OAT is above 40 and without ECS or external cooling?

• 30 minutes

Can packs and air from an external air conditioning source be operated at the same time?

• No

What is the minimum height for engagement and use of autopilot?

• Engagement: 400ft AGL

• Use: 80ft AGL

Which selection can NOT be used on the DLK WHEN CAN WE page?

• ALTITUDE selection

Which DLK selections are prohibited?

• ALTITUDE from the WHEN CAN WE page

• WX DEV TO POS from the ROUTE REQUEST page

• DIVERT TO from the EMERGENCY MESSAGE page in the SETTINGS menu

What is the minimum height and minimum speed with flight spoilers manually extended?

• Minimum height: 500ft AGL

• Minimum speed: Vref + 10 KIAS

What is the maximum permissible fuel imbalance between the contents of the left and right fuel tanks?

• 454Kg

What is the minimum fuel quantity at what climb attitude for a go-around?

• 442 Kg per wing and a maximum airplane climb attitude of 10 degrees nose up

What is the maximum bulk fuel temperature for starting and operating?

• 52.5 C

What is the minimum bulk fuel temperature for take-off?

• -37 C

Can the Manual Transfer or Gravity Crossflow be ON for take-off?

• No

What is the AOM limitation in regards to operation of the APU when either wing tank quantity is greater than 2830 Kg

• It is prohibited to operate it in an unattended mode

Which engine must be started first when either wing tank fuel quantity is greater than 2830 Kg?

• Left engine

In which circumstance would a manual fuel transfer have to be done on the ground?

• When either wing tank fuel quantity is greater than 2830 Kg and center tank fuel quantity is less than 10670 Kg

• Fuel transfer is done from affected wing tank to center tank

What is the Maximum allowable brake temperature for take-off? For gear retraction?

• 6 Units

• 13 Units

What is the minimum APU oil temperature for a start?

• -40 C

What is the maximum amount of APU starts/attempts in an hour? What is the minimum delay between start attempts?

• 3 starts/attempts

• 2min

When is starting and operation of the APU permitted?

• When within the Altitude and Temperature/Altitude and Speed operating envelopes shown in AOM 1.01.20

What is the altitude limit for APU Bleed air extraction?

• 23000 ft

If taking off using APU at an OAT of 15 or below, what setting should be selected for the APU BLEED?

• APU BLEED OFF

What is the maximum wind speed for passenger and cargo door operation? For door held in open position?

• 40kts

• 65kts

At what oil temperature range is the engine operation limited to:

1. Idle N1?

2. 30% N1?

3. 50% N1?

1. Below -6 to -40

2. Between -6 and 21

3. From 21 to 49

What is the AOM limitation regarding operation of thrust reversers in cold weather?

• At -40 and up to -20: If turn-around time exceeds 120 minutes, thrust reversers must be cycled two times before take-off on contaminated runways.

→ Take-off must be initiated within 5min of last thrust reverser cycle, if not the two cycles must be repeated

• At less than -40: Same, but must be cycled until last deployment cycle time is equal to or less than 2.5 seconds

→ Take-off must be initiated within 2min after last cycle, if not cycles must be repeated

What are the A220s engine start limitations?

• Three start attempts or 4 minutes continuous cranking → 30min cooldown period required

• Max N2 RPM of 20% to engage starter

How long do the engines have to be at near idle before shutdown? What is near idle?

• 3min (5min recommended)

• Up to 40% N1

What is the AOM limitation in regards to a high power shutdown?

• The affected engine must not be restarted unless the guidance in AOM 1.03.71 Engine Shutdown Procedure is used

What are the maximum crosswind and tailwind components for starting on the ground and for ice shedding?

• 43kts and 18kts