Text in force at CS27-10: from CS27-0, effective 14 Nov 2003.
The minimum flight crew must be established so that it is sufficient for safe operation, considering:
(a) The workload on individual crew members;
(b) The accessibility and ease of operation of necessary controls by the appropriate crew member; and
(c) The kinds of operation authorised under CS 27.1525.
ED Decision 2003/015/RM · Source