Text in force at CS27-10: from CS27-0, effective 14 Nov 2003.
Each item of installed equipment must:
(a) Be of a kind and design appropriate to its intended function;
(b) Be labelled as to its identification, function, or operating limitations, or any applicable combination of these factors;
(c) Be installed according to limitations specified for that equipment; and
(d) Function properly when installed.
ED Decision 2003/015/RM · Source