Page 289 - UK Air Operations Regulations 201121

Part CAT - ANNEX IV - Commercial Air Transport Operations

(b) In-flight fuel management
(1) If, as a result of an in-flight fuel check, the expected fuel remaining on arrival at the
destination is less than the required alternate fuel plus final reserve fuel, the
commander should:
(i) divert; or
(ii) replan the flight in accordance with SPA.HOFO.120 unless he/she considers it
safer to continue to the destination.
(2) At an onshore destination, when two suitable, separate touchdown and lift-off areas
are available and the weather conditions at the destination comply with those
specified for planning in CAT.OP.MPA.245 (a)(2), the commander may permit
alternate fuel to be used before landing at the destination.
(c) If, as a result of an in-flight fuel check on a flight to an isolated destination, planned in
accordance with (b), the expected fuel remaining at the point of last possible diversion is
less than the sum of:
(1) fuel to divert to an operating site selected in accordance with CAT.OP.MPA.181 (a);
(2) contingency fuel; and
(3) final reserve fuel,
the commander should:
(i) divert; or
(ii) proceed to the destination provided that at onshore destinations, two suitable,
separate touchdown and lift-off areas are available at the destination and the
expected weather conditions at the destination comply with those specified for
planning in CAT.OP.MPA.245 (a)(2).
CAT.OP.MPA.285 Use of supplemental oxygen
The commander shall ensure that flight crew members engaged in performing duties essential to the
safe operation of an aircraft in flight use supplemental oxygen continuously whenever the cabin altitude
exceeds 10 000 ft for a period of more than 30 minutes and whenever the cabin altitude exceeds 13
000 ft.
CAT.OP.MPA.290 Ground proximity detection
When undue proximity to the ground is detected by a flight crew member or by a ground proximity
warning system, the pilot flying shall take corrective action immediately to establish safe flight
conditions.
CAT.OP.MPA.290 GM1 Ground proximity detection
TERRAIN AWARENESS WARNING SYSTEM (TAWS) FLIGHT CREW TRAINING PROGRAMMES
(a) Introduction
(1) This GM contains performance-based training objectives for TAWS flight crew
training.
(2) The training objectives cover five areas: theory of operation; pre-flight operations;
general in-flight operations; response to TAWS cautions; and response to TAWS
warnings.
(3) The term ‘TAWS’ in this GM means a ground proximity warning system (GPWS)
enhanced by a forward-looking terrain avoidance function. Alerts include both
cautions and warnings.
(4) The content of this GM is intended to assist operators who are producing training
programmes. The information it contains has not been tailored to any specific
aircraft or TAWS equipment, but highlights features which are typically available
where such systems are installed. It is the responsibility of the individual operator to
determine the applicability of the content of this guidance material to each aircraft
and TAWS equipment installed and their operation. Operators should refer to the
AFM and/or aircraft/flight crew operating manual (A/FCOM), or similar documents,
for information applicable to specific configurations. If there should be any conflict
between the content of this guidance material and that published in the other
documents described above, then information contained in the AFM or A/FCOM will
take precedence.
(b) Scope
(1) The scope of this GM is designed to identify training objectives in the areas of:
academic training; manoeuvre training; initial evaluation; and recurrent qualification.
Under each of these four areas, the training material has been separated into those
items which are considered essential training items and those that are considered to
be desirable. In each area, objectives and acceptable performance criteria are
defined.
(2) No attempt is made to define how the training programme should be implemented.
Instead, objectives are established to define the knowledge that a pilot operating a
TAWS is expected to possess and the performance expected from a pilot who has
completed TAWS training. However, the guidelines do indicate those areas in which
the pilot receiving the training should demonstrate his/her understanding, or
performance, using a real-time, interactive training device, i.e. a flight simulator.
Where appropriate, notes are included within the performance criteria which amplify
or clarify the material addressed by the training objective.
(c) Performance-based training objectives
(1) TAWS academic training
(i) This training is typically conducted in a classroom environment. The
knowledge demonstrations specified in this section may be completed through
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