Page 727 - UK Air Operations Regulations 201121

~
~ Regulation SPO - ANNEX VIII - Specialised Operations Centrik

(3) if applicable, all taxi clearances should be heard, and should be understood by the
pilot- in-command;
(4) if applicable, all taxi clearances should be cross-checked against the aerodrome
chart and aerodrome surface markings, signs and lights;
(5) an aircraft taxiing on the manoeuvring area should stop and hold at all lighted stop
bars, and may proceed further when an explicit clearance to enter or cross the
runway has been issued by the aerodrome control tower, and when the stop bar
lights are switched off;
(6) if the pilot-in-command is unsure of his/her position, he/she should stop the aircraft
and contact air traffic control;
(7) any action, which may disturb the pilot-in-command from the taxi activity, should be
avoided or done with the parking brake set.
SPO.GEN.120 Taxiing of aeroplanes
The operator shall ensure that an aeroplane is only taxied on the movement area of an aerodrome if
the person at the controls:
(a) is an appropriately qualified pilot; or
(b) has been designated by the operator and:
(1) is trained to taxi the aeroplane;
(2) is trained to use the radio telephone, if radio communications are required;
(3) has received instruction in respect of aerodrome layout, routes, signs, marking,
lights, air traffic control (ATC) signals and instructions, phraseology and procedures;
and
(4) is able to conform to the operational standards required for safe aeroplane
movement at the aerodrome.
SPO.GEN.120 GM1 Taxiing of aeroplanes
SAFETY-CRITICAL ACTIVITY
(a) Taxiing should be treated as a safety-critical activity due to the risks related to the
movement of the aeroplane and the potential for a catastrophic event on the ground.
(b) Taxiing is a high-workload phase of flight that requires the full attention of the flight crew.
SPO.GEN.120(b)(4) GM1 Taxiing of aeroplanes
SKILLS AND KNOWLEDGE
The person designated by the operator to taxi an aeroplane should possess the following skills and
knowledge:
(a) positioning of the aeroplane to ensure safety when starting engine;
(b) getting ATIS reports and taxi clearance, where applicable;
(c) interpretation of airfield markings/lights/signals/indicators;
(d) interpretation of marshalling signals, where applicable;
(e) identification of suitable parking area;
(f) maintaining lookout and right-of-way rules and complying with ATC or marshalling
instructions when applicable;
(g) avoidance of adverse effect of propeller slipstream or jet wash on other aeroplanes,
aerodrome facilities and personnel;
(h) inspection of taxi path when surface conditions are obscured;
(i) communication with others when controlling an aeroplane on the ground;
(j) interpretation of operational instructions;
(k) reporting of any problem that may occur while taxiing an aeroplane; and
(l) adapting the taxi speed in accordance with prevailing aerodrome, traffic, surface and
weather conditions.
SPO.GEN.125 Rotor engagement
A helicopter rotor shall only be turned under power for the purpose of flight with a qualified pilot at the
controls.
SPO.GEN.125 GM1 Rotor engagement
INTENT OF THE RULE
(a) The following two situations where it is allowed to turn the rotor under power should be
distinguished:
(1) for the purpose of flight, as described in the implementing rule;
(2) for maintenance purposes.
(b) Rotor engagement for the purpose of flight: it should be noted that the pilot should not leave
the control when the rotors are turning. For example, the pilot is not allowed to get out of
the aircraft in order to welcome persons and adjust their seat belts with the rotors turning.
(c) Rotor engagement for the purpose of maintenance: the implementing rule, however, should
not prevent ground runs being conducted by qualified personnel other than pilots for
maintenance purposes.
The following conditions should be applied:
(1) The operator should ensure that the qualification of personnel, other than pilots, who
are authorised to conduct maintenance runs, is described in the appropriate manual.
(2) Ground runs should not include taxiing the helicopter.
(3) There should be no other persons on board.
20th November 2021 727 of 856