Cruise
In the cruise an encounter with CAT, windshear, or standing waves may cause the speed to increase rapidly. The recommended technique for recovery is to initially select a lower speed on the FCU, but not below green dot. This will have the effect of commanding the autothrust system to reduce the thrust, which may be.sufficient.to.stop.a.VMO/MMO.exceedance.
If the aircraft accelerates above VMO/MMO and triggers the high-speed protection the autopilot will disengage and the high-speed protection will provide a nose-up order. If VMO/MMO is exceeded significantly the associated overspeed aural warning may have overwhelmed the autopilot disconnect aural warning.
The pilot should not pitch up to reduce speed, but should attempt to maintain the cruise altitude by making smooth inputs on the sidestick. The autothrust system will be reducing the thrust, and it should not be necessary to disconnect the autothrust. It is preferable to leave the autothrust engaged to reduce workload once the cause of the overspeed is passed. In extreme cases the speedbrakes may.be.used,.but.they.should.be.used.with.caution.at.high.altitudes.
When below the high-speed protection range, check autopilot engagement status.and.re-engage.it.if.necessary.
Electrical
FCTM REV.1.(6.JUN.05)
EMERGENCY.ELECTRICAL.CONFIGURATION
The Emergency Electrical Configuration is triggered by the loss of all AC busbars. This results in the automatic engagement of the Emergency Generator, driven by the Green hydraulic system and powered by either the Engine Driven Pump (EDP) or the RAT, depending upon the cause of the failure. It is most unlikely that this configuration will ever be encountered, but be aware that workload is immediately increased in Emergency Electrical Configuration, The handling of this failure is referred to as a "complex procedure". A summary for handling the procedure is included in the QRH, which should be referred to upon completion.of.the.ECAM.procedure.
The electrical distribution network has been designed to enable the crew to fly the aircraft, navigate and communicate. The list of equipment available in Emergency Electrical Configuration is detailed in the QRH. The available systems.of.particular.interest.prior.to.selection.of.LAND.RCVY.are:
A333
EMER.GEN.Powered.by.EDP EMER.GEN.Powered.by.RAT
FLY AP1,.PFD.1,.Pitch.trim, Rudder.trim,.ALTN.LAW, Upper.ECAM,.ECP, ISIS/STBY.INST PFD.1,.ALTN.LAW,.Upper ECAM,.ECP,.ISIS/STBY.INST
NAV ND.1,.FMGC.1,.MCDU.1, DDRMI.(VOR/DME.1.or.ADF 1),.FCU,.WXRDR.1 FCU,.STBY.NAV.(via.RMP.1), DDRMI.(VOR.1.or.ADF.1)
COMM VHF.1,.HF.1,.RMP.1,.ACP.1.& 2,.Loundspeakers.1.&.2 VHF.1,.RMP.1,.ACP.1.&.2, Loudspeakers.1.&.2
A343/A346
EMER.GEN.Powered.by.EDP EMER.GEN.Powered.by.RAT
FLY PFD.1,.Pitch.trim,.Rudder.trim (without.centre.pedestal position.indication),.ALTN LAW,.Upper.ECAM,.ECP, ISIS/STBY.INST PFD.1,.ALTN.LAW,.Upper ECAM,.ECP,.ISIS/STBY.INST
NAV MCDU.1.(B/U.NAV),.STBY NAV.(via.RMP.1),.DDRMI (VOR/DME.1.or.ADF.1),.FCU FCU,.STBY.NAV.(via.RMP.1), DDRMI.(VOR.1.or.ADF.1)
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