PFR:
Fault Confrmation:
Reference to TSM, do fault confirmation, than fault isolation. FCU reset procedure can be carry out as per TSM-24-81-00-810-802-A. (Please refer to full TSM procedures, this is just to show what is going on. Different TSM will have different procedures.)
If reset unsuccessful, we can apply MEL.
MEL Entries:
Note: No dispatch is FCU 1+2 Fault
MEL Items:
Different aircraft config might have different requirements, always refer to the approved and latest maintenance data.
Flight Control Unit Description:
This description only deals with the central part of the Flight Control Unit (FCU). In general, the FCU provides the short term interface between the crew and the Flight Management and Guidance System (FMGS). The FCU is the main interface to engage functions and guidance modes and to select parameters.
NOTE: In fact, there is one FCU panel which controls two identical processing channels: FCU 1 and FCU 2. Only one channel is active at a time, the other is in standby. If both channels fail, all FCU controls are inoperative: A/THR, AP/Flight Director (FD) 1 and AP/FD 2 are not available.
Links - AMM-24-00-00-810-818-A - Computer Reset
NOTE: All information and details on this blog is for reading and training purposes only, References might absolute from time to time. No update will be necessary.
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