Singapore legislation
Regulation 65
of Air Navigation (135 — Commercial Air Transport by Helicopters and Small Aeroplanes) Regulations 2018
Regulation 65
Single-engine aeroplane
Subregulation 1
An AOC holder must ensure that a small aeroplane with a single engine is only operated in such conditions and over such routes (including any diversions from those routes) that permit a safe forced landing to be executed in the event of engine failure.
Subregulation 2
Despite paragraph (1), an AOC holder may operate a single‑engine turbine‑powered aeroplane at night or in Instrument Meteorological Conditions in accordance with an approval granted by the Director‑General of Civil Aviation under the Air Navigation (98 — Special Operations) Regulations 2018 for that purpose.