—(1) Noise and vibration may be caused by aircraft including military aircraft, on Government aerodromes, licensed aerodromes or on aerodromes at which the manufacture, repair or maintenance of aircraft is carried out by persons carrying on business as manufacturers or repairers of aircraft, under the following conditions that is to say, that whether in the course of the manufacture of the aircraft or otherwise —
the aircraft is taking off or landing; or
the aircraft is moving on the ground or water; or
the engines are being operated in the aircraft —
for the purpose of ensuring their satisfactory performance;
for the purpose of bringing them to a proper temperature in preparation for, or at the end of, a flight; or
for the purpose of ensuring that the instruments, accessories or other components of the aircraft are in a satisfactory condition.
(2) Section 4(2) of the Act shall apply to the aerodromes specified in sub-paragraph (1).