M5.13

Question 1

Define level A

Answer 1

Catastrophic - Prevents continued safe flight

Question 2

Define level B

Answer 2

Hazardous/Severe - Failure has a large negative impact on safety

Question 3

Define level C

Answer 3

Major - Significantly reduces safety margin

Question 4

Define level E

Answer 4

No effect

Question 5

Define level D

Answer 5

Minor - Reduces safety margin

Question 6

How can we perform a program change in an aircraft LRU

Answer 6

• Aircraft data loader
• Portable data loader
• Changing OBRM
• Special programming menu MCDU

Question 7

LRU software packages

Answer 7

• Core software
• Operational software
• Data base

Question 8

Function of core software

Answer 8

Defines the function of the whole aircraft

Question 9

Function of operational software

Answer 9

The kind of display in the cockpit

Question 10

Function of data bases

Answer 10

Parameter values that will be changed

Question 11

Who can load level A software

Answer 11

Only authorised personnel

Question 12

Who can load level E software

Answer 12

Maintenance personnel but only if documentation is available

Question 13

What type of software should not normally be touched

Answer 13

Core- software

Question 14

A change to core software can only be made with what

Answer 14

Agreement of the aircraft manufacturer and the LRU manufacturer

Question 15

A change to operational software requires what

Answer 15

Agreement of both manufacturers or a guarantee from airline level of safety is guaranteed

Question 16

A change in a data base requires what

Answer 16

Without involvement from the manufacturers (if level E)