11.18 - On Board Maintenance Systems Flashcards
Which back up is available in the event of a failure in a central maintenance computer (CMC) normal channel
The CMC back up channel is available in interactive mode only
Which was the disadvantage of older generation aircraft maintenance systems
The associated switches were in varied locations
How are the faults recorded with reporting mode selected and when on the ground
They are listed on the MCDU or the ground report print out
They are stored in the CMC memory as cockpit effect
2 answers from 2 different sources
How is the maintenance menu selected on the MCDU
But pressing the CMC key on the MCDU
What happens if the CMCS has two identical CMCS and the normal CMC fails during flight
The second CMC takes over automatically and all functions are kept
When is the MCDU normally used
During flight to control the FMS
Which is the functions of the reporting mode within the CMC
To scan the aircraft systems that are connected to it and to memorise and transmit fault information
Which information is checked during correlation
Time, data (date?), ATA chapter and sub chapter
Which are the two types of failure category effects
Hard and intermittent failure
