Location of instruments and equipment
71.  An operator of a Singapore registered aircraft must ensure that —
(a)any instrument or item of equipment to be operated or used by a single pilot is installed in the aircraft so that the instrument or item of equipment can be readily seen and operated from that pilot’s normal seating position with minimum practicable deviation from the pilot’s normal line of sight when the aircraft is in flight; and
(b)any single instrument or item of equipment to be operated or used by 2 pilots is installed in the aircraft so that the instrument or item of equipment can be readily seen and operated from each pilot’s normal seating position.