Crew member transition segment
151.—(1)  An AOC holder must ensure that every person, who is qualified and is on the AOC holder’s roster to be assigned duty as a crew member on a relevant aircraft for a commercial air transport operation authorised by the AOC holder’s air operator certificate, completes the transition segment of the AOC holder’s training programme provided in accordance with regulation 139 if —
(a)the person is to be assigned to act as a crew member on an aircraft type, or a variant of an aircraft type, which is different from the aircraft type or variant that the person is currently being assigned duty on; or
(b)the AOC holder is introducing a new procedure or new equipment on the aircraft type or variant that the person is currently being assigned duty on.
(2)  The transition segment mentioned in paragraph (1) must address —
(a)the use of all safety and emergency equipment and procedures applicable to the aircraft type or variant; and
(b)any new procedure or new equipment that is to be introduced on the aircraft type or variant that the person is currently being assigned duty on.
(3)  To avoid doubt, any training that relates to a pilot’s aircraft type rating must be conducted only by a training organisation that is approved in accordance with paragraph 20(13)(c) of the Air Navigation Order (O 2).