8.30.2
A330/A340 Non-normal.Operations
REV.1.(6.JUN.05)
FCTM Electrical
Only PFD 1 is available. The AP will disengage when the failure occurs but AP 1 can be reengaged on the A333 if the EMER GEN is powered by an EDP. As there is no AP available in this configuration in the A340, the Captain must take control and fly the aircraft manually. The A340 aircraft is out of trim in roll due to right outboard aileron upfloat, caused by no power being available to Prim 3 or Sec 2, and neither pitch trim or rudder trim is available. The aircraft is in ALTN law (A333 due loss of slat/flap position; A340 due loss of 2 ADRs). Consequently, pay close attention to bank angle and heading. A333/A346: is in N1 degraded mode. Once a safe flight path is established and the aircraft is under.control,.carry.out.the.ECAM.actions.
It is important to correctly identify the failure, as it is possible to confuse Emergency Electrical Configuration with an All Engine Flameout. Therefore, it is very important that the ECAM title is read accurately before starting the ECAM actions. The procedure is lengthy and complicated and, as only one ECAM display is available, disciplined use of the ECP is essential. FCTM Ch 2 refers. Consider.starting.the.APU.
Although the ECAM displays LAND ASAP in red, it is unwise to attempt an approach at a poorly equipped airfield in marginal weather. Consider the power source for the Emergency Generator as the emergency generator outputs approximately twice as much electrical power when powered by the EDP. The aircraft is better configured when the EDP rather than the RAT, powers the Emergency Generator. In either case, prolonged flight in this configuration is not recommended.
TRK/FPA should be selected and FDs turned off. This allows the display of the blue track index on the Captain's PFD to assist in maintaining track. Navigation should be achieved using all available means. VOR/DME1 or ADF1 only are available on the DDRMI. The navigation facilities available depend on the aircraft type.and.the.cause.of.the.failure..QRH.refers.
A MAYDAY should be declared. Radar headings to the nearest suitable airfield may.be.available.and.separation.from.other.traffic.can.be.increased.
To ensure proper fuel feed to the engines in ELEC EMER CONFIG, (A333/A343: one) (A346: two) fuel pump(s) is/are powered and the cross-feed(s) automatically.open..The.Engine.Anti-Ice.is.on.
Press the LAND RECOVERY pb prior to commencing the approach. This allows the recovery of a number of systems required for landing, e.g. ILS 1, SFCC 1, LGCIU 1 (and A333: BSCU 1, LH WHC 1, LH Landing Light). It also sheds a number of systems that are no longer required, e.g. the operative fuel pump(s) (and.A333:.WX.RDR.1,.HF.1,.ADR.3.hence.AP.1).
During the approach, the characteristic speeds may not be displayed on the PFD and can be extracted from the QRH prior to descent. Only raw data is available for the approach. The landing gear is extended using the gravity system to prevent fluctuations in the green hydraulic system whilst the Emergency Generator is operating, thereby preventing it from possibly disconnecting. Consequently, as the doors remain open, the NWS is not available. When the gear is extended, the aircraft reverts to Flare Law (Direct) and "USE MAN PITCH TRIM" is displayed on PFD 1. Thrust reversers autobrake and antiskid are not available.
If the RAT powers the Emergency Generator, the available systems are further reduced and the requirement to land is more urgent. Of particular note is that there is no pitch trim, no rudder trim, no FMGC 1 and no AP 1. Upon selecting LAND RECOVERY, only the slat channel of SFCC 1 is recovered, so the flaps are not available for the landing. At slat extension, the Emergency Generator is inhibited,.and.the.aircraft.is.supplied.by.batteries.only.
Restoring.Normal.Electrical.Power.After.EMER.ELEC.CONFIG
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