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A350 OKV QUESTION BANK > A350 OKV - LIMITATIONS > Flashcards

A350 OKV - LIMITATIONS Flashcards

Consolidate the operational knowledge of the main limitations of the A350.

1
Q

What is the maximum operating altitude?

A350-1000

A

41,450 ft.

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2
Q

What are the aircraft maximum structural weights?

A350-1000

A

TAXI=316.9T; MTOW=316T; MLW=236T; MZFW=223T.

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3
Q

What is the limitation when taking off below 175T in CONF 3?

A350-1000

A

FLEX takeoff is not permitted.

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4
Q

What is the limitation when landing weight is below 150T?

A350-1000

A

CONF 3 landing is mandatory, landing with tailwind above 10 kt is not permitted.

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5
Q

What are the maximum speeds for each flap/slat configuration?

A350-1000

A

0=340k/0.89; 1=260k; 1+F=230k; 2=220k; 3=205; FULL=192K.

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6
Q

What is the maximum speed with the landing gear extended?

Vle, Vlo-extension, Vlo-retraction

A

250K/0.55.

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7
Q

What is the maximum altitude at which the slats/flaps may be extended?

A

20,000 ft.

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8
Q

What is the recommended turbulence speed VRA?

A

As per MFD/PERF CRZ “MAX TURB”; VRA= green dot to 300kts/ M 0.85.

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9
Q

What is the maximum tire speed? (GS)

A

213k.

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10
Q

What is the maximum speed to operate the windshield wipers?

A

230k.

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11
Q

What is the maximum crosswind for takeoff/manual landing on a dry runway (Gusts Included)?

A

TO & LDG=35k.

Additional limitations may appy for F/O and S/O. Refer to Company RCAM

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12
Q

What is the maximum recommended crosswind limit for MAN landing on a wet runway reporting braking action GOOD?

A

35/29 Kts.

Additional limitations may appy for F/O and S/O. Refer to Company RCAM

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13
Q

What is the maximum tailwind component for landing?

A

10 Kts. For some specific MSN, 15Kts.

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14
Q

What is the maximum taxi speed?

A

30 knots;

maximum speed of 10kts during 90° turns;

when RVR falls below 550 m the maximum recommended taxi speed is: 20kts or 10 knots if the aircraft is in or about to enter obscuring phenomena.

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15
Q

What is the VMCL?

A

VMCL= 123.

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16
Q

What is the air conditioning limitation when using an LP Ground Unit?

A

Do not use conditioned air from the packs and from the LP air conditioning unit at the same time; Do not set the AIR FLOW selector to HI if an LP air conditioning unit is used and the aircraft is electrically powered.

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17
Q

What is the air conditioning limitation when using an HP Ground Unit?

A

Do not use bleed air from the APU BLEED and from the HP Air Start Unit at the same time.

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18
Q

What is the minimum weight for use of Autoland?

A

160T.

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19
Q

What is the minimum height/time for use of the autopilot on takeoff?

A

5 s after lift-off.

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20
Q

What is the minimum height for use of the autopilot during Non-Precision Approaches?

A

200 ft. AGL.

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21
Q

What is the minimum height for use of the autopilot during a Circling Approach?

A

Latest before starting descent toward the runway.

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22
Q

What is the minimum height for use of the autopilot during an ILS Approach with CAT1/ APPR 1 displayed on the FMA?

A

160ft AGL.

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23
Q

What is the minimum height for engagement of the autopilot during a Go Around?

A

100ft AGL.

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24
Q

What is the minimum height for use of the autopilot during all phases other than take-off, instrument approach or go-around?

A

500ft AGL.

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25
Q

What are the maximum wind conditions for a CAT 2 or CAT 3 ILS Automatic Approach, Landing, & Rollout?

A

H=30k; X=20k;T=10k; all tower winds.

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26
Q

What is the general limitation regarding the use of the autopilot and/or the FD during an approach in OPEN DES or DES mode?

A

Use of the AP or FD in OPEN DES or DES mode is not permitted below 500 ft AGL or MDA(H)/DA(H), whichever is higher.

27
Q

What is the general limitation/precaution regarding obstacle clearance and constraints programmed into the FMGS?

A

Obstacle clearance and adherence to airspace constraints remains the flight crew’s responsibility.

28
Q

The FLS function may be used for which approaches?

A

VOR, VOR/DME, LOC (BC), ILS (G/S OUT), ILS-BC (G/S OUT), RNAV (GNSS).

29
Q

Approach with FLS function: what are the allowed FMA modes?

A

For VOR, VOR/DME, LOC (BC), ILS (G/S OUT), ILS-BC (G/S OUT): F-APP and F-APP+RAW; For RNAV (GNSS): only F-APP.

30
Q

Is it authorized to fly a RNAV approach without NAV PRIMARY?

A

No

31
Q

What are the pre-requisites for using NAV mode in the terminal area?

A

NAV PRIMARY is available, or HIGH accuracy is displayed and the appropriate RNP is checked or entered on the MFD, or Aircraft navigation is crosschecked with navaid raw data.

32
Q

What is the limitation regarding the use of the autopilot to perform a Non-Precision Approach if one engine is inoperative?

A

No limitations.

33
Q

What is the applicable Alert Height during a CAT 3 Fail Operational (Dual) ILS Automatic Approach?

A

200ft.

34
Q

What are the permissible flap/slat configurations for a CAT 2/CAT 3 ILS with One Engine Inoperative?

A

3 or FULL.

35
Q

What are the mandatory precautions that must be taken if performing an automatic landing in CAT 1 or better weather conditions (Practice LVP Approach/Autoland)?

A

Only permitted on runways certified for LVP; prior ATC coordination; At least CAT 2 (LAND 2) capability is displayed on the FMA, and CAT 2/CAT 3 procedures are used; Visual references are obtained at CAT1 minima.

36
Q

What is the aircraft approach Category?

A350-1000

A

D.

A350-1000

37
Q

As per Company policy, what is the lowest approved minima for Low Visibility take-off?

A

125m.

38
Q

What is the maximum allowable fuel imbalance in either inner or outer tanks at takeoff, landing, and in flight?

A

3000kg.

39
Q

What is the maximum fuel temperature?

A

+55°C.

40
Q

What is the minimum fuel temperature?

A

JET A1: -47°C; JET A: -40°C.

41
Q

What are the fuel types certified?

A

JET A, JET A1, jp5, jp8, and other specified in LIM.

42
Q

What is the maximum allowed brake temperature for takeoff?

A

300 C° (150 C° if Brake Fans were used).

43
Q

What are the maximum speeds for landing gear extension and retraction?

A

250k/0.55.

44
Q

What are the limitations regarding taxi with deflated or damaged tires?

A

If tire damage is suspected, the flight crew must ask for an aircraft inspection prior to vacate the runway or taxi. Maxi taxi speed: 3 kt; Maxi NSW angle: 30°; No more than one affected tire on the nose landing gear; No more than two affected tires on each main landing gear provided that the affected tires are not on the same axle.

45
Q

Following a loss of cabin pressure, the minimum oxygen required for a particular flight and flight crew, assumes the mask regulator is in what position?

A

NORMAL.

46
Q

What is the operating limitation of the APU if the OIL LEVEL LO advisory is displayed on the APU SD page?

A

Maintenance action is required within 20 h of APU operation; normal APU ops are allowed.

47
Q

What is the limitation regarding consecutive start attempts of the APU?

A

3 consecutive APU start attempts; then, wait 60 min before a new start attempt.

48
Q

What is the maximum altitude pressure and speed for an APU start?

A

No restrictions.

49
Q

What is the maximum altitude to attempt an APU start with batteries only (ELEC EMER CONFIG)?

A

FL410.

50
Q

What is the maximum altitude for using the APU Bleed with One/ single Pack?

A

25000ft.

51
Q

What is the maximum altitude for using the APU Bleed with Two Packs?

A

22500ft.

52
Q

What is the maximum altitude to use the APU bleed for an Engine Start?

A

25000ft.

53
Q

Can you use wing anti-ice with the APU bleed air?

A

NO.

54
Q

On ground, what is the approximate APU fuel consumption, with BOTH PACK ON and GEN ON?

A

230kg/hr.

55
Q

On ground, what is the approximate APU fuel consumption, with ONLY- GEN ON?

A

180kg/hr.

56
Q

At FL 100, what is the approximate APU fuel consumption?

A

170 kg/hr.

57
Q

What is the minimum engine oil quantity for each flight?

A

<5hr = 13Q;
5<= FT < 7hr = 15Q;
>7hr = 22Q+ATL entry.

58
Q

What is the minimum oil temperature for takeoff?

A

+50°C.

59
Q

What is the maximum time limit for using TOGA thrust?

A

5 Minutes under normal conditions; 10 Minutes in case of engine failure.

60
Q

What are the engine starter limitations for the A350?

A
  • No running engagement of the starter when the N3 is above 10 % on ground, or 30 % in flight; Maximum continuous starter operation is 5 min; 2 consecutive cycles of 3 min maximum, plus one additional cycle of 1 min, with a run down to zero N3 and wait 30 s between each cycle; or One 5 min cycle; Wait 30 min after the last cycle to allow the starter to cool.
61
Q

What are the limitations regarding the use of Reverse Thrust?

A

Maximum reverse should not be used below 70 kts; Idle reverse is allowed down to aircraft stop.

62
Q

Is reduced thrust take-off allowed on contaminated runways?

A

NO.

63
Q

Is reduced thrust take-off allowed with inoperative aircraft systems or components that affect performance?

A

YES, according MEL.

A350 OKV QUESTION BANK (2 decks)

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