11.18 use other deck

Question 1

what do modern aircraft use for on board maintenance of all electronic controlled systems

Answer 1

OBMS (on board maintenance system)

Question 2

whats the purpose of OBMS

Answer 2

monitor and test aircraft systems

Question 3

what is the CMS

Answer 3

central maintenance system

Question 4

what does the CMS consist of

Answer 4

1/2 CMC, 2/3 MCDU

Question 5

whats the function of the CMC

Answer 5

centralise all aircraft related data

Question 6

boeing aircraft store how many faults in flights/faults

Answer 6

99 flights or 500 faults

Question 7

airbus store how many faults in flights

Answer 7

maximum of 63

Question 8

how many fault codes can a CMC produce

Answer 8

10,000

Question 9

what are the different CMS classifications

Answer 9

level A, level B, level C

Question 10

what is a level A fault

Answer 10

warning

Question 11

what is a level b fault

Answer 11

caution

Question 12

what is a level C fault

Answer 12

advisory

Question 13

what fault classifications do airbus use

Answer 13

class 1, class 2, class 3

Question 14

failure come in what fault code types

Answer 14

hard failure, soft failure, failure warning, maintenance message, maintenance memos

Question 15

what is BITE

Answer 15

built in test equipment

Question 16

whats the MCDU

Answer 16

multifunction control display unit

Question 17

when does a flight leg start

Answer 17

when the engines start/stop or when the last door closes

Question 18

what is the MAT

Answer 18

maintenance access terminal