Page 393 - UK Air Operations Regulations (Consolidated) 201121

Part CAT - ANNEX IV - Commercial Air Transport Operations

(i) 120 minutes at one-engine-inoperative (OEI) cruising speed for aeroplanes
capable of continuing the flight to an aerodrome with the critical engine(s)
becoming inoperative at any point along the route or planned diversion routes;
or
(ii) 30 minutes at cruising speed for all other aeroplanes;
(2) remains within a distance no greater than that corresponding to 90 minutes at
cruising speed from an area suitable for making an emergency landing, for
aeroplanes certified in accordance with the applicable airworthiness standard.
CAT.IDE.A.305 AMC1 Survival equipment
ADDITIONAL SURVIVAL EQUIPMENT
(a) The following additional survival equipment should be carried when required:
(1) 2 litres of drinkable water for each 50, or fraction of 50, persons on board provided in
durable containers;
(2) one knife;
(3) first-aid equipment; and
(4) one set of air/ground codes.
(b) In addition, when polar conditions are expected, the following should be carried:
(1) a means for melting snow;
(2) one snow shovel and one ice saw;
(3) sleeping bags for use by 1/3 of all persons on board and space blankets for the
remainder or space blankets for all passengers on board; and
(4) one arctic/polar suit for each crew member.
(c) If any item of equipment contained in the above list is already carried on board the
aeroplane in accordance with another requirement, there is no need for this to be
duplicated.
CAT.IDE.A.305 GM1 Survival equipment
SIGNALLING EQUIPMENT
The signalling equipment for making distress signals is described in ICAO Annex 2, Rules of the Air.
CAT.IDE.A.305 GM2 Survival equipment
AREAS IN WHICH SEARCH AND RESCUE WOULD BE ESPECIALLY DIFFICULT
The expression ‘areas in which search and rescue would be especially difficult’ should be interpreted,
in this context, as meaning:
(a) areas so designated by the authority responsible for managing search and rescue; or
(b) areas that are largely uninhabited and where:
(1) the authority referred to in (a) has not published any information to confirm whether
search and rescue would be or would not be especially difficult; and
(2) the authority referred to in (a) does not, as a matter of policy, designate areas as
being especially difficult for search and rescue.
CAT.IDE.A.305(b)(2) AMC1 Survival equipment
APPLICABLE AIRWORTHINESS STANDARD
The applicable airworthiness standard should be CS-25 or equivalent.
CAT.IDE.A.325 Headset
(a) Aeroplanes shall be equipped with a headset with a boom or throat microphone or
equivalent for each flight crew member at their assigned station in the flight crew
compartment.
(b) Aeroplanes operated under IFR or at night shall be equipped with a transmit button on the
manual pitch and roll control for each required flight crew member.
CAT.IDE.A.325 AMC1 Headset
GENERAL
(a) A headset consists of a communication device that includes two earphones to receive and
a microphone to transmit audio signals to the aeroplane’s communication system. To
comply with the minimum performance requirements, the earphones and microphone
should match the communication system’s characteristics and the flight crew
compartment environment. The headset should be sufficiently adjustable to fit the pilot’s
head. Headset boom microphones should be of the noise cancelling type.
(b) If the intention is to utilise noise cancelling earphones, the operator should ensure that the
earphones do not attenuate any aural warnings or sounds necessary for alerting the flight
crew on matters related to the safe operation of the aeroplane.
CAT.IDE.A.325 GM1 Headset
GENERAL
The term ‘headset’ includes any aviation helmet incorporating headphones and microphone worn by a
flight crew member.
CAT.IDE.A.330 Radio communication equipment
(a) Aeroplanes shall be equipped with the radio communication equipment required by the
applicable airspace requirements.
(b) The radio communication equipment shall provide for communication on the aeronautical
emergency frequency 121,5 MHz.
CAT.IDE.A.335 Audio selector panel
Aeroplanes operated under IFR shall be equipped with an audio selector panel operable from each
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