ORO.TC.140 Refresher training
(a) Each technical crew member who has not undertaken duties in the previous six months shall complete the refresher training specified in the operations manual.
(b) The technical crew member who has not performed flying duties on one particular aircraft type or class during the preceding six months shall, before being assigned on that type or class, complete either:
(1) refresher training on the type or class; or
(2) two familiarisation sectors on the aircraft type or class.