Inoperative instruments or equipment
68.—(1)  Subject to paragraph (3), an operator of a Singapore registered aircraft must not commence a flight using the aircraft if any instrument or item of equipment that the aircraft is required, in the circumstances of the intended flight, to carry under these Regulations is not carried or is not in a fit condition for use.
(2)  The Director-General of Civil Aviation may, subject to such conditions as the Director‑General of Civil Aviation considers fit, permit an operator to operate a Singapore registered aircraft in specified circumstances even if any instrument or item of equipment that the aircraft is required, in the circumstances of the intended flight, to carry under these Regulations is not carried or is not in a fit condition for use.
(3)  When a permission is granted under paragraph (2), the operator may operate the Singapore registered aircraft under the circumstances specified in the permission if —
(a)the operator has provided the particulars of the permission to the pilot-in-command of the aircraft;
(b)the pilot-in-command has reviewed the particulars of the permission and determined that compliance with regulation 24 is possible; and
(c)any inoperative instrument or item of equipment is conspicuously marked “Inoperative” and the required maintenance is recorded in the technical log.