ANNEX IVU.K.COMMERCIAL AIR TRANSPORT OPERATIONS[PART-CAT]
SUBPART BOPERATING PROCEDURESU.K.
SECTION 1U.K.Motor-powered aircraft
CAT.OP.MPA.190Submission of the ATS flight planU.K.
(b)When operating from a site where it is impossible to submit an ATS flight plan, the ATS flight plan shall be transmitted as soon as possible after take-off by the commander or the operator.U.K.