Aircraft operating under IFR or at night
76.—(1)  An operator of a Singapore registered aircraft to be flown in accordance with the Instrument Flight Rules, or when the surface is not in sight, must ensure that the aircraft is equipped with a means of measuring and displaying —
(a)magnetic heading (such as a standby compass);
(b)barometric altitude;
(c)indicated airspeed, with a means of preventing malfunctioning due to condensation or icing;
(d)mach number, if the speed limitation specified in the aircraft’s flight manual is expressed in terms of mach number;
(e)stabilised aircraft heading;
(f)the adequacy of the power supply to any gyroscopic instrument;
(g)the outside air temperature;
(h)the rate of climb and descent;
(i)turn and slip if the aircraft is an aeroplane, or slip if the aircraft is a helicopter;
(j)aircraft attitude for each required pilot, except that in an aeroplane one such indicator may be replaced with a turn and slip indicator; and
(k)an additional indicator of aircraft attitude, if the aircraft is a helicopter; and
(l)the time in hours, minutes and seconds.
(2)  When an aircraft mentioned in paragraph (1) is to be flown at night, the operator must ensure that the aircraft is equipped with the following lights:
(a)any light required by the Rules of the Air;
(b)illumination for all flight instruments and equipment essential for the safe operation of the aircraft;
(c)lights in all passenger compartments;
(d)an independent portable light for each crew member station;
(e)a landing light which, if the aircraft is a helicopter, must be trainable in the vertical plane.
(3)  In paragraph (1) and regulation 77, “the surface is not in sight” means —
(a)the flight crew is not able to see sufficient features of the surface; or
(b)the surface illumination is insufficient to enable the flight crew to maintain the aircraft in a desired attitude without reference to any flight instrument.
[S 209/2020 wef 01/04/2020]