AMC 25J943 APU Operating Characteristics

1 Compliance with CS 25J943 should be shown by design analysis and flight tests. The flight tests should include manoeuvre in which less than zero 'g' occurs for one continuous period of at least 5 seconds and a further manoeuvre with two periods of less than zero 'g' with a total time for these two periods of at least 5 seconds. 2 In the case of non-essential APUs, inadvertent shut-down due to negative accelerations is acceptable.

[Amdt 25/1]