Singapore legislation
Regulation 78
of Air Navigation (121 — Commercial Air Transport by Large Aeroplanes) Regulations 2018
Regulation 78
Performance — mass limitations
Subregulation 1
An AOC holder must ensure that the mass of a large aeroplane at the start of its take‑off does not exceed any of the following limits:
the mass at which the requirements of the applicable Performance Class can be complied with for the planned flight;
the maximum take‑off mass specified in the aircraft flight manual for that pressure altitude appropriate to the aerodrome elevation and any other local atmospheric condition that is used as a parameter to determine the maximum take‑off mass;
the maximum mass specified in the applicable noise certificate granted in respect of the aeroplane, unless otherwise authorised by the competent authority of the State of the Aerodrome.
Subregulation 2
In the event of in‑flight re‑planning for any flight of a large aeroplane, the AOC holder must ensure that the mass of the aeroplane at the point from which the revised operational flight plan applies does not exceed the mass at which the requirements of the applicable Performance Class can be complied with for the planned flight.
Subregulation 3
An AOC holder must ensure that the estimated mass of a large aeroplane at the expected time of landing at the destination aerodrome, and at any destination alternate aerodrome, does not exceed the maximum landing mass specified in the aircraft flight manual for the pressure altitude appropriate to the aerodrome elevation and any other local atmospheric condition that is used as a parameter to determine the maximum landing mass.
Subregulation 4
An AOC holder must ensure that the mass of a large aeroplane at the expected time of landing at the destination aerodrome, and at any destination alternate aerodrome, does not exceed the maximum mass specified in the applicable noise certificate granted in respect of the aircraft unless otherwise authorised by the competent authority of the State of the Aerodrome.