CIVIL AVIATION (AIRCRAFT NOISE) (LIMITATION ON OPERATION OF ENGINES AND AUXILIARY POWER UNITS) REGULATIONS

CIVIL AVIATION (AIRCRAFT NOISE) (LIMITATION ON OPERATION OF ENGINES AND AUXILIARY POWER UNITS) REGULATIONS

CIVIL AVIATION (AIRCRAFT NOISE) (LIMITATION ON
OPERATION OF ENGINES AND AUXILIARY
POWER UNITS) REGULATIONS

(Cap. 312, section 9)

[1 November 1989]

L.N. 339 of 1989

LAW

1. Citation

These regulations may be cited as the Civil Aviation (Aircraft Noise)

(Limitation on Operation of Engines and Auxiliary Power Units) Regulations.

2. Interpretation

In these regulations, unless the context otherwise requires

,,auxiliary power unit' means a source of power on an aircraft independent of the
aircraft's engines, which is used to provide power to the aircraft usually when
the engines are not in use;

,,engine'

(a)means an engine on an aircraft which is used to provide power for
propelling that aircraft or for operating equipment installed therein;

(b) does not mean an auxiliary power unit;

'ground idle power' means the power developed by an engine when operated on
the ground with its associated controls selected to the minimum power
position;

,,operator' means the person having the management of an aircraft for the time
being;

,,owner' means the person in whose name an aircraft is registered at its place of
registration;

'plan' means Plan No. KM 3753a dated 16 October 1987 deposited in the office of
the Airport General Manager;

'Richland Gardens' means the area marked 'Richland Gardens' on the plan;

'take-off power' means the power developed by an engine when operated on the
ground with its associated controls selected to enable the aircraft to take off,

training session' means a flight for the purposes of training or checking the flight-
crew of an aircraft.





3. Limitation on operation of engines above ground idle

power between the hours of 12 midnight and 7 a.m.

An engine shall not be operated at Hong Kong International Airport above
ground idle power between the hours of 12 midnight and 7 a.m. except for the
purposes of take off or landing or for moving the aircraft for the purposes of take off
or after landing.

4. Limitation on operation of engines above ground idle

power between the hours of 9 p.m. and 12 midnight

(1) Subject to subregulation (2), an engine shall not be operated at Hong Kong
International Airport above ground idle power between the hours of 9 p.m. and 12
midnight except for the purposes of take off or landing or for moving the aircraft for
the purposes of take off or after landing.

(2) An engine may be operated at Hong Kong International Airport above
ground idle power for purposes other than those described in subregulation (1)

(a)between the hours of 9 p.m. and 11.30 p.m. in the case of aircraft due
to leave Hong Kong on a scheduled service before 10 a.m. on the day
after;

(b)between the hours of 11.30 p.m. and 12 midnight in the case of aircraft
of a description specified in column 1 in Schedule 1 operated in
accordance with the limitation specified opposite thereto in column 2
in Schedule 1 and due to leave Hong Kong on a scheduled service
before 10 a.m. on the day after;

(c)between the hours of 9 p.m. and 12 midnight in the case of aircraft of
a description specified in column 1 in Schedule 1 operated in
accordance with the limitation specified opposite thereto in column 2
in Schedule 1 and due to leave Hong Kong on a scheduled service
between 10 a.m. and noon on the day after;

(d)between the hours of 9 p.m. and 11.30 p.m. in the case of aircraft
required for a training session after 6.30 a.m. and due to leave Hong
Kong on a scheduled service before noon on the day after; or

(e)between the hours of 11.30 p.m. and 12 midnight in the case of aircraft
required for a training session after 6.30 a.m. of a description specified
in column 1 in Schedule 1 operated in accordance with the limitation
specified opposite thereto in column 2 in Schedule 1 and due to leave
Hong Kong on a scheduled service before noon on the day after.





(3) For the purposes of subregulation (2), 'aircraft' means an aircraft
certificated in accordance with noise levels specified in Annex 16 to the Convention
on International Civil Aviation and applicable to such aircraft.

5. Limitation on operation of auxiliary power units

(1) No auxiliary power unit shall be operated between the hours of 12 midnight
and 6 a.m. within the area specified in Schedule 2.

(2) When an auxiliary power unit is in operation within the area specified in
Schedule 2 between the hours of 11 p.m. and 12 midnight or is in operation within
the area specified in Schedule 3 between the hours of 11 p.m. and 6 a.m., the aircraft
on which the auxiliary power unit is used shall, except when moving on the ground
for the purposes of take off or after landing, be positioned such that the exhaust of
the auxiliary power unit is not directed towards Richland Gardens; and for the
purposes of this subregulation, the exhaust of an auxiliary power unit shall be
regarded as directed towards Richland Gardens if the angle between

(a)a line drawn rearwards along the longitudinal axis of the aircraft on
which the auxiliary power unit is used; and

(b)a line drawn from that axis to any point at Richland Gardens, being a
line that passes, or would if extended pass, through the outermost
point of the exhaust of that auxiliary power unit,

is less than 451.

(3) No auxiliary power unit shall be operated within the area specified in
Schedule 2 between the hours of 11 p.m. and 12 midnight or be operated within the
area specified in Schedule 3 between the hours of 11 p.m. and 6 a.m. if any quieter
alternative sources of power may be practicably substituted therefor.

(4) The operation of an auxiliary power unit within the area specified in
Schedule 2 between the hours of 11 p.m. and 12 midnight or operation within the
area specified in Schedule 3 between the hours of 11 p.m. and 6 a.m. shall be kept to
a minimum and shall, wherever practicable, be avoided between the hours of 1 a.m.
and 5 a.m. within the area specified in Schedule 3.

6. Offences

(1) If an engine is operated at Hong Kong International Airport in contravention
of regulation 3 or 4, the owner of the aircraft and the operator of the aircraft on which
the engine is used each commits an offence and is liable to a fine of $50,000.

(2) If an auxiliary power unit is operated at Hong Kong International Airport in
contravention of regulation 5, the owner of the aircraft and the operator of the
aircraft on which the auxiliary power unit is used each commits an offence and is
liable to a fine of $50,000.





7. Exemption

(1) These regulations shall not apply for such purposes or in such
circumstances as the Director may specify by notice in writing, either generally or in
any particular case.

(2) A notice under subregulation (1) shall be published in the Gazette and may

(a) be made subject to such conditions or limitations; (b)
have effect for such periods or part of periods; or (c)
have such partial operation,

as the Director may specify in the notice.

SCHEDULE 1 [reg. 4]
Aircraft Limitation

(a) A300/A310 One PW4152/CF6 at a time up to take-ofF power for a
maximum duration of 60 seconds
One JT9D at a time up to 1.35 EPR for a maximum duration
of 60 seconds
(b) A320 One CFM 56/V2500 at a time up to take-ofF power for a
maximum duration of 60 seconds

(c) BAe 146 One ALF 502 at a time up to take-off power for a maximum
duration of 60 seconds
(d) Boeing 707/720 One MC/MD/MA at a time up to 1.25 EPR
(e) Boeing 727 One JT8D at a time up to 1960 Ibs thrust (1.09 EPR)
(f) Boeing 737 One JT8D at a time up to 1960 Ibs thrust (1.09 EPR); or
one CFM 56 at a time up to take-off power for a maximum
duration of 60 seconds

(g) Boeing 747 One RB211/CF6 at a time up to take-off power for a
maximum duration of 60 seconds
One JT9D at a time up to 1.35 EPR for a maximum duration
of60seconds
(h) Boeing 757 One RB211/PW2037 at a time up to take-off power for a
maximum duration of 60 seconds
(i) Boeing 767 One RB21 1 /PW4056/CF6 at a time up to take-ofr power for
a
maximum duration of 60 seconds
One JT9D at a time up to 1.35 EPR for a maximum duration
of 60 seconds

(j) DC8/60 series One MD/M at a time up to 1.25 EPR
(k) DC8/70 series One CFM 56 at a time up to take-off power for a maximum
duration of 60 seconds
(1) DC10 One CF6 at a time up to take-off power for a maximum
duration of 60 seconds
One JT9D at a time up to 1.35 EPR for a maximum duration
of 60 seconds
(m) LockheedLI011 One RB211 at a time up to take-ofF power for a maximum
duration of 60 seconds

(n) MD W9/MD 80 One JT8D at a time up to 1960 Ibs thrust (1.09 EPR)





SCHEDULE 2 [reg. 51
The area known as the Auxiliary Power Unit Controlled Area located within the boundaries of
the airport which area is more particularly delineated and coloured pink and marked 'Auxiliary
Power Unit Controlled Area' on the plan.

SCHEDULE 3 [reg. 51
The area located within the boundaries of the airport, which area is more particularly
delineated and edged blue on the plan.

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