A350: Difference between revisions

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==Operational Notes==
==Operational Notes==
*Cost Index for Maximum Rate of Climb: 0<ref>Getting to Grips with Aircraft Performance, 2.2.3. Climb at Maximum Rate</ref>
*Cost Index for Maximum Rate of Climb: 0<ref>Getting to Grips with Aircraft Performance, 2.2.3. Climb at Maximum Rate</ref>
*Severe Turbulence Speed: GD <-> 300kts/M.85<ref>FCOM PRO-ABN-MISC [ABN] Misc Severe Turbulence in Cruise</ref>
*Severe Turbulence Speed: GD<->300kts/M.85<ref>FCOM PRO-ABN-MISC [ABN] Misc Severe Turbulence in Cruise</ref>
*Maximum Endurance Speed (Clean Config): FMS Hold Speed = Green Dot + 20kt<ref>FCOM PER-IFT-20-40 All Engines Operative Operations - Holding</ref>
*Maximum Endurance Speed (Clean Config): FMS Hold Speed = Green Dot + 20kt<ref>FCOM PER-IFT-20-40 All Engines Operative Operations - Holding</ref>
*Loadsheet Limit: ±750kg<ref>SIA OM Vol A > Operating Procedures > Pre-Flight > Loadsheet Changes > Limits</ref>
*Loadsheet Limit: ±750kg<ref>SIA OM Vol A > Operating Procedures > Pre-Flight > Loadsheet Changes > Limits</ref>

Revision as of 11:28, 13 January 2020

Operational Notes

  • Cost Index for Maximum Rate of Climb: 0[1]
  • Severe Turbulence Speed: GD<->300kts/M.85[2]
  • Maximum Endurance Speed (Clean Config): FMS Hold Speed = Green Dot + 20kt[3]
  • Loadsheet Limit: ±750kg[4]
  • Engine fail speed strategies (with MCT selected):[5]
    • Standard Strategy: M0.85->300kts
    • Obstacle Strategy: Green Dot (Keep Managed Speed)
    • Fixed Speed Strategy: M0.85->330kts[6]
  • Maximum Fuel Uplift Discrepancy[7]:
FOB after refueling Abnormal difference above
<15t 600kg
≥15t and <35t 700kg
≥35t and <55t 800kg
≥55t and <75t 900kg
≥75t and <90t 1000kg
≥90t and <110t 1100kg
≥110t 1200kg

ATA 21 Air Conditioning / Pressurization / Ventilation

Cockpit / Cabin Zone temperature

  • Overhead Panel Selector: 24°C +/- 6°C[8]

Cargo Hold temperature

  • Overhead Panel Selector: 15°C +/- 10°C[9]

Cabin Press

  • SD Page Indications pulse green when[10]:
    • CAB V/S > ±1,800ft
    • 8,300ft < CAB ALT <9,550ft
  • Automatic Operation Limits[11]:
    • Climb +400ft/min
    • Cruise 6,000ft, ~9.4 ΔPSI
    • Descend -300ft/min (<FL250), -250ft/min (≥FL250)
  • Manual Operation Default V/S Targets[12]:
    • Climb +500ft/min
    • Descent -300ft/min

ECAM AIR ENG 1(2) BLEED TEMP LO

  • WAI ON & Engine Bleed Temp <150°C
  • Can restore engine bleed after setting WAI OFF

ATA 22-27 Flight Envelope

Green Dot Speed[13]

  • Approximates Best Lift-to-Drag ratio speed -> Best Climb Gradient
  • Drift down speed, in the case of an engine failure
  • Increases as IAS until ~285kts at about FL350~FL370 then converts to ~M.83

ATA 22 - Auto Flight System

Autoland[14]

  • CAT IIIB not authorised on contaminated runways (ROLL OUT performance not assured on contaminated runways)
  • Approved for CONF 3 and CONF FULL
  • Glide slope angle between -2.5° and -3.25°
  • Airfield elevation up to 9,200ft
  • Minimum Weight 140t
  • Maximum Weight MTOW
  • Maximum Wind Conditions (based on tower reported surface wind):
    • Headwind: 40kt
    • Tailwind: 15kt
    • Crosswind: 30kt

Engine Inoperative AP/FD Bank Angle limits during takeoff and approach[15]

  • 20° at V2, then linear increase to
  • 30° at 1.23Vs(Flap 1-3)
  • 25° at 1.23Vs(Flap 0) == Vls

ECAM AUTO FLT FMS 1 + 2 FAULT

  • RNP AR is lost
  • Manual Landing Elevation (via the knob) for the CPCs to control pressurisation
  • Use the following:
    • AP with Lateral and Vertical guidance in basic mode
    • Standby ND[16]
    • Backup Trajectory[17] which stores:
      • 80nm radius around the aircraft
      • All data related to a previously programmed terminal area procedure
    • Standby Radio Navigation[18]

ECAM AUTO FLT AFS CTL PNL FAULT

  • RNP AR Limited to RNP 0.30
  • Flight crew should permanently display AFS CP page of the MFD FCU BKUP, except during cruise

ATA 23 Communication

ECAM COM CAPT(F/O)(THIRD OCCUPANT)(FOURTH OCCUPANT) PTT STUCK

  • Triggers when PTT sw is stuck in the transmit position for ≥40s & no transmission key is selected on the associated RMP

ATA 24 Electrical

EDTO Diversion Decision Making

  • In EDTO segment, diversion is required in the case of only one generator remaining[19]

ATA 27 Flight Controls

ECAM F/CTL SPLRS PARTLY EXTENDED

  • One or more spoilers are failed and have drifted up, thus fuel consumption is increased

ECAM F/CTL FLAP SYS 2 FAULT

  • The Differential Flap Setting (DFS) function is lost as it's controlled by Flap Sys 2
  • Fuel consumption increased by 1.8%[20]

ECAM F/CTL DIFF FLAP SETTING FAULT

  • This ECAM appears if the automatic recovery procedure is unable to realign Flaps to the 0° position
  • Fuel consumption increased by up to 12% (not variable)[21]

ECAM F/CTL FLAPS LOCKED

  • Use Selected Speed -> Configure like Slats / Flaps locked (i.e. decelerate to VFE NEXT-5 kts, set Flap lever one step down)
  • Flaps 3 landing
  • Keep Slat / Flap configuration for go-around

ECAM F/CTL SLATS LOCKED

  • Use Selected Speed -> Configure like Slats / Flaps locked (i.e. decelerate to VFE NEXT-5 kts, set Flap lever one step down)
  • Flaps Full landing
  • Can clean up during go-around

ATA 28 Fuel

Gravity Feed to Engines[22]

  • >FL300 for >30mins: MAX FL200/MEA-MORA
  • Otherwise: MAX FL80/MEA-MORA
  • Avoid Negative G Load

ECAM FUEL LEAK SUSPECTED / [ABN] FUEL LEAK

  • ECAM Detection:
    • Difference between FU + FOB vs BLOCK more than 2,500kg to 4,000kg, depending on initial FOB
  • Crew Detection:
    • FOB + FU abnormally less than BLOCK (FOB at departure)
    • Excessive engine fuel flow
    • Fuel spray from engine / pylon / wing (observed from cabin)
    • Unsubstantiated fuel imbalance
  • Do not use Reversers & BTV

ATA 29 Hydraulic Power

ECAM HYD G SYS PRESS LO

  • Landing Gear gravity extension
  • Flaps Slow

ECAM HYD Y SYS PRESS LO

  • Landing Gear gravity extension
  • Slats/Flaps Slow
  • Nosewheel steering inop; Backup Steering Available (for taxi-in), use towing to vacate contaminated runway

ECAM HYD G+Y SYS PRESS LO

  • Landing Gear gravity extension
  • Slats/Flaps Slow
  • Use Selected Speed -> Configure like Slats / Flaps locked (i.e. decelerate to VFE NEXT-5 kts, set Flap lever one step down)
  • Nosewheel steering + Backup steering inop -> Stop on the runway to be towed off
  • Fuel consumption increased 30%[23] due loss of both outer ailerons

ATA 31 Control and Display System

ECAM CDS CENTER UPPER (LOWER) DU FAULT

  • (FOB+FU)-BLOCK indication may display XX until end of flight
  • Upper DU controls Capt HUD, Lower DU controls F/O HUD[24]

ATA 32 Landing Gear

L/G Recycling[25]

  • To recycle: Set the L/G lever to the UP / DOWN position, wait for the landing gear uplock / downlock, then set the L/G lever DOWN / UP again
  • The active L/G CTL changes when the landing gear is recycled
  • Recycle one time only

ECAM L/G GEAR NOT DOWN

  • Activates when Flaps are in CONF 3 or FULL & when >5,500ft AGL; due to RA parameter being not available

ECAM BRAKES HOT

  • Wait 15mins before using Brake Cooling Time Table
  • Cooling Time required at OAT 30°C is:
    • ~146mins without Brake Fans from 500°C to 150°C
    • ~30mins with Brakes Fans from 500°C to 150°C

[ABN] L/G LDG WITH ABNORM MAIN L/G

  • Single L/G affected, landing demonstrated with Xwind up to 20kt on the ECAM to avoid side
  • Both L/G affected, landing demonstrated with Xwind up to 10kts from either side
  • Demonstrated Xwind was not found limiting
  • Do not use Reversers

[ABN] L/G LDG WITH ABNORM NOSE L/G

  • Consider requesting foam to be sprayed on the runway
  • Do not use Reversers

ATA 34 Navigation

ECAM NAV IR 2 FAULT

  • Onboard WiFi may be unserviceable (?it takes information from GNSS2)

ATA 35 Oxygen

Cockpit Oxygen on ECAM DOOR/OXYGEN PAGE[26]

  • ≥350PSI Green
  • <350PSI Amber
  • REGUL PR LO appears on ground when oxygen distribution manifold pressure <47PSI
  • Minimum required for dispatch[27]:1,050PSI
  • Minimum required inflight[28]:
Per Side MH LH / ULR
1 user 750 500
2 users 1050 650

ATA 49 Auxiliary Power Unit

  • Inflight, APU generator can replace up to 2 engine generators[29]
  • APU Bleed can supply 1 Pack / Engine start up to FL250; supply 2 Packs up to FL225[30]

ATA 70 Engines

Rolls Royce Trent XWB-84[31]

  • 84,000lbf Takeoff Thrust
  • Bypass ratio: 9.6:1
  • Noise: QC 0.5 departures / QC 0.5 arrivals

High Vibration[32]

  • N1(2)(3) greater than 5 units for 8s or greater than 8 units for 2s

ECAM ENG 1(2) N1 DEGRADED MODE

  • N1 Red Limit on Degraded Thrust Indicator corresponds to the engine type[33]
    • N1 Limit = 98.1% (Mark I) / 99.1% (Mark II)

ECAM ENG ALL ENGINES FAILURE

  • 3 Stages: Auto relight, Windmill relight (250kts, both together), Starter assisted relight (Green Dot speed, one at a time)
  • If quick enough from FL350 to ~FL250 should be able to try at least 2 windmill relight attempts

[ABN] ENG RELIGHT IN FLT

  • Max guaranteed altitude is 25,000ft
  • If relight is unsuccessful, the procedure does not remind you to set ENG START SEL...NORM; XBLEED...AUTO

References

  1. Getting to Grips with Aircraft Performance, 2.2.3. Climb at Maximum Rate
  2. FCOM PRO-ABN-MISC [ABN] Misc Severe Turbulence in Cruise
  3. FCOM PER-IFT-20-40 All Engines Operative Operations - Holding
  4. SIA OM Vol A > Operating Procedures > Pre-Flight > Loadsheet Changes > Limits
  5. FCTM > Procedures > Abnormal and Emergency Procedures > ENG > Engine Failure in Cruise
  6. SIA OM Vol A > Operating Procedures > General > EDTO > Diversion Strategy Following Engine Failure
  7. SQNP >..> SOP > Before Pushback or Start > Before Start Clearance - Loadsheet
  8. FCOM DSC-21-COND-20 Air Panel
  9. FCOM DSC-21-COND-20 Cargo Air Cond Panel
  10. FCOM DSC-21-PRESS-20 Cab Press SD Page
  11. FCOM DSC-21-PRESS-30 Automatic Operation
  12. FCOM DSC-21-PRESS-40 Manual Operation
  13. FCOM DSC-22-27-10-20 Green Dot
  14. FCOM LIM-AFS-20
  15. FCTM PR-AEP-ENG
  16. FCOM DSC-34-NAV-30-10 SND Overview
  17. FCOM DSC-31-CDS-40-40-90 Backup Traj
  18. FCOM DSC-34-NAV-70-30 How to Tune the Navaids in STBY RAD NAV
  19. FCOM PRO-SPO-ETOPS
  20. MEL 27-51-02A (o) procedure
  21. FCOM PER-IFT-FP Fuel Penalty Table, DIFF FLAP SETTING
  22. FCOM PRO-ABN-FUEL FUEL L(R) FEEDLINE BURST
  23. FCOM PER-IFT-FP Fuel Penalty Table, 2 outer ailerons partly extended
  24. MEL 31-60-02A (o) procedure
  25. FCOM PRO-ABN-LG L/G GEAR NOT LOCKED DOWN / UP
  26. FCOM DSC-35-20-20
  27. SQSP 90-20 Minimum Oxygen Pressure for Dispatch
  28. FCOM LIM-OXY
  29. FCOM DSC-24-10-20 APU Generator
  30. FCOM LIM-APU
  31. Trent XWB Infographic
  32. FCOM PRO-ABN-ENG
  33. FCOM LIM-ENG