21.  The Authority shall not grant, refuse to grant, revoke, suspend or vary any air transport licence [F1or a route licence] authorising flights to, from or within—

F2(a). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b)the Isle of Man, without consulting the Isle of Man Department of Highways, Ports and Properties; or

(c)Gibraltar, without consulting the Secretary of State;

and subject to regulation 26(5) such consultations shall be completed before the date fixed for the hearing of the case pursuant to regulation 25:

Provided that consultation as aforesaid shall not be required in a case where—

(i)the application or licence in question is for not more than four flights in any one direction between the same two places;

(ii)the Authority is acting in pursuance of its duty under section 65(2) or (3) or 66(3) of the Act; F3...

(iii)the Authority’s duty under section 31(2) of the Airports Act 1986 requires it to refuse to grant or to revoke, suspend or vary the licence; [F4or]

[F5(iv)the Authority is acting in pursuance of its duty under section 69A(4) of the Act.]