Safety Investigation Report 2018:1 Factual Information/1.6/1.6.8 Aircraft Systems/12
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SAFETY INVESTIGATION REPORT MH370 (9M-MRO)
12) Central Maintenance Computing System
The Central Maintenance Computing System (CMCS) collects and stores information from most of the aircraft systems. It can store fault histories as well as monitor and conduct tests on the various systems. The fault history contains details of warnings, cautions and maintenance messages.
At regular intervals, during flight, the CMCS transmits any recorded fault messages, via the Aircraft Communications Addressing and Reporting System (ACARS), to the Maintenance Control Centre (MCC) of Malaysia Airlines. This helps in the planning and preparation for the rectification of any potential aircraft defects at the main base or line stations. Refer also to Section 1.6.4 para. 9).