A350 OKV - LIMITATIONS Flashcards
Consolidate the operational knowledge of the main limitations of the A350.
What is the maximum operating altitude?
A350-1000
41,450 ft.
What are the aircraft maximum structural weights?
A350-1000
TAXI=316.9T; MTOW=316T; MLW=236T; MZFW=223T.
What is the limitation when taking off below 175T in CONF 3?
A350-1000
FLEX takeoff is not permitted.
What is the limitation when landing weight is below 150T?
A350-1000
CONF 3 landing is mandatory, landing with tailwind above 10 kt is not permitted.
What are the maximum speeds for each flap/slat configuration?
A350-1000
0=340k/0.89; 1=260k; 1+F=230k; 2=220k; 3=205; FULL=192K.
What is the maximum speed with the landing gear extended?
Vle, Vlo-extension, Vlo-retraction
250K/0.55.
What is the maximum altitude at which the slats/flaps may be extended?
20,000 ft.
What is the recommended turbulence speed VRA?
As per MFD/PERF CRZ “MAX TURB”; VRA= green dot to 300kts/ M 0.85.
What is the maximum tire speed? (GS)
213k.
What is the maximum speed to operate the windshield wipers?
230k.
What is the maximum crosswind for takeoff/manual landing on a dry runway (Gusts Included)?
TO & LDG=35k.
Additional limitations may appy for F/O and S/O. Refer to Company RCAM
What is the maximum recommended crosswind limit for MAN landing on a wet runway reporting braking action GOOD?
35/29 Kts.
Additional limitations may appy for F/O and S/O. Refer to Company RCAM
What is the maximum tailwind component for landing?
10 Kts. For some specific MSN, 15Kts.
What is the maximum taxi speed?
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.
What is the VMCL?
VMCL= 123.
What is the air conditioning limitation when using an LP Ground Unit?
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.
What is the air conditioning limitation when using an HP Ground Unit?
Do not use bleed air from the APU BLEED and from the HP Air Start Unit at the same time.
What is the minimum weight for use of Autoland?
160T.
What is the minimum height/time for use of the autopilot on takeoff?
5 s after lift-off.
What is the minimum height for use of the autopilot during Non-Precision Approaches?
200 ft. AGL.
What is the minimum height for use of the autopilot during a Circling Approach?
Latest before starting descent toward the runway.
What is the minimum height for use of the autopilot during an ILS Approach with CAT1/ APPR 1 displayed on the FMA?
160ft AGL.
What is the minimum height for engagement of the autopilot during a Go Around?
100ft AGL.
What is the minimum height for use of the autopilot during all phases other than take-off, instrument approach or go-around?
500ft AGL.
What are the maximum wind conditions for a CAT 2 or CAT 3 ILS Automatic Approach, Landing, & Rollout?
H=30k; X=20k;T=10k; all tower winds.
What is the general limitation regarding the use of the autopilot and/or the FD during an approach in OPEN DES or DES mode?
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.
What is the general limitation/precaution regarding obstacle clearance and constraints programmed into the FMGS?
Obstacle clearance and adherence to airspace constraints remains the flight crew’s responsibility.
The FLS function may be used for which approaches?
VOR, VOR/DME, LOC (BC), ILS (G/S OUT), ILS-BC (G/S OUT), RNAV (GNSS).
Approach with FLS function: what are the allowed FMA modes?
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.
Is it authorized to fly a RNAV approach without NAV PRIMARY?
No
What are the pre-requisites for using NAV mode in the terminal area?
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.
What is the limitation regarding the use of the autopilot to perform a Non-Precision Approach if one engine is inoperative?
No limitations.
What is the applicable Alert Height during a CAT 3 Fail Operational (Dual) ILS Automatic Approach?
200ft.
What are the permissible flap/slat configurations for a CAT 2/CAT 3 ILS with One Engine Inoperative?
3 or FULL.
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)?
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.
What is the aircraft approach Category?
A350-1000
D.
A350-1000
As per Company policy, what is the lowest approved minima for Low Visibility take-off?
125m.
What is the maximum allowable fuel imbalance in either inner or outer tanks at takeoff, landing, and in flight?
3000kg.
What is the maximum fuel temperature?
+55°C.
What is the minimum fuel temperature?
JET A1: -47°C; JET A: -40°C.
What are the fuel types certified?
JET A, JET A1, jp5, jp8, and other specified in LIM.
What is the maximum allowed brake temperature for takeoff?
300 C° (150 C° if Brake Fans were used).
What are the maximum speeds for landing gear extension and retraction?
250k/0.55.
What are the limitations regarding taxi with deflated or damaged tires?
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.
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?
NORMAL.
What is the operating limitation of the APU if the OIL LEVEL LO advisory is displayed on the APU SD page?
Maintenance action is required within 20 h of APU operation; normal APU ops are allowed.
What is the limitation regarding consecutive start attempts of the APU?
3 consecutive APU start attempts; then, wait 60 min before a new start attempt.
What is the maximum altitude pressure and speed for an APU start?
No restrictions.
What is the maximum altitude to attempt an APU start with batteries only (ELEC EMER CONFIG)?
FL410.
What is the maximum altitude for using the APU Bleed with One/ single Pack?
25000ft.
What is the maximum altitude for using the APU Bleed with Two Packs?
22500ft.
What is the maximum altitude to use the APU bleed for an Engine Start?
25000ft.
Can you use wing anti-ice with the APU bleed air?
NO.
On ground, what is the approximate APU fuel consumption, with BOTH PACK ON and GEN ON?
230kg/hr.
On ground, what is the approximate APU fuel consumption, with ONLY- GEN ON?
180kg/hr.
At FL 100, what is the approximate APU fuel consumption?
170 kg/hr.
What is the minimum engine oil quantity for each flight?
<5hr = 13Q;
5<= FT < 7hr = 15Q;
>7hr = 22Q+ATL entry.
What is the minimum oil temperature for takeoff?
+50°C.
What is the maximum time limit for using TOGA thrust?
5 Minutes under normal conditions; 10 Minutes in case of engine failure.
What are the engine starter limitations for the A350?
- 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.
What are the limitations regarding the use of Reverse Thrust?
Maximum reverse should not be used below 70 kts; Idle reverse is allowed down to aircraft stop.
Is reduced thrust take-off allowed on contaminated runways?
NO.
Is reduced thrust take-off allowed with inoperative aircraft systems or components that affect performance?
YES, according MEL.
