Page 765 - UK Air Operations Regulations 201121

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(7) Provision should be made for a safe and rapid evacuation.
SPO.OP.155 GM1 Refuelling with persons embarking, on board or disembarking
AIRCRAFT REFUELLING PROVISIONS AND GUIDANCE ON SAFE REFUELLING PRACTICES
Provisions concerning aircraft refuelling are contained in Volume I (Aerodrome Design and
Operations) of ICAO Annex 14 (Aerodromes), and guidance on safe refuelling practices is contained
in Parts 1 and 8 of the ICAO Airport Services Manual (Doc 9137).
SPO.OP.160 Use of headset
Each flight crew member required to be on duty in the flight crew compartment shall wear a headset
with boom microphone, or equivalent, and use it as the primary device to communicate with ATS,
other crew members and task specialists.
SPO.OP.165 Smoking
The pilot-in-command shall not allow smoking on board or during refuelling or defuelling of the aircraft.
SPO.OP.170 Meteorological conditions
(a) The pilot-in-command shall only commence or continue a VFR flight if the latest available
meteorological information indicates that the weather conditions along the route and at the
intended destination at the estimated time of use will be at or above the applicable VFR
operating minima.
(b) The pilot-in-command shall only commence or continue an IFR flight towards the planned
destination aerodrome if the latest available meteorological information indicates that, at
the estimated time of arrival, the weather conditions at the destination or at least one
destination alternate aerodrome are at or above the applicable aerodrome operating
minima.
(c) If a flight contains VFR and IFR segments, the meteorological information referred to in (a)
and (b) shall be applicable as far as relevant.
SPO.OP.170 AMC1 Meteorological conditions
EVALUATION OF METEOROLOGICAL CONDITIONS
Pilots should carefully evaluate the available meteorological information relevant to the proposed
flight, such as applicable surface observations, winds and temperatures aloft, terminal and area
forecasts, air meteorological information reports (AIRMETs), significant meteorological information
(SIGMET) and pilot reports. The ultimate decision whether, when, and where to make the flight rests
with the pilot-in-command. Pilots should continue to re-evaluate changing weather conditions.
SPO.OP.170 AMC2 Meteorological conditions
APPLICATION OF AERODROME FORECASTS (TAF & TREND)
Where a terminal area forecast (TAF) or meteorological aerodrome or aeronautical report (METAR)
with landing forecast (TREND) is used as forecast, the following criteria should be used:
(a) From the start of a TAF validity period up to the time of applicability of the first subsequent
'FM...' or 'BECMG' or, if no 'FM' or BECMG' is given, up to the end of the validity period of
the TAF, the prevailing weather conditions forecast in the initial part of the TAF should be
applied.
(b) From the time of observation of a METAR up to the time of applicability of the first
subsequent 'FM...' or 'BECMG' or, if no 'FM' or BECMG' is given, up to the end of the
validity period of the TREND, the prevailing weather conditions forecast in the METAR
should be applied.
(c) Following FM (alone) or BECMG AT, any specified change should be applied from the time
of the change.
(d) Following BECMG (alone), BECMG FM, BECMG TL, BECMG FM TL:
(1) in the case of deterioration, any specified change should be applied from the start of
the change; and
(2) in the case of improvement, any specified change should be applied from the end of
the change.
(e) In a period indicated by TEMPO (alone), TEMPO FM, TEMPO TL, TEMPO FM TL,
PROB30/40 (alone):
(1) deteriorations associated with persistent conditions in connection with e.g. haze,
mist, fog, dust/sandstorm, continuous precipitation should be applied;
(2) deteriorations associated with transient/showery conditions in connection with
short- lived weather phenomena, e.g. thunderstorms, showers may be ignored; and
(3) improvements should in all cases be disregarded.
(f) In a period indicated by PROB30/40 TEMPO:
(1) deteriorations may be disregarded; and
(2) improvements should be disregarded.
Note: Abbreviations used in the context of this AMC are as follows:
FM: from
BECMG: becoming AT: at
TL: till
TEMPO: temporarily PROB: probability
SPO.OP.170 GM1 Meteorological conditions
CONTINUATION OF A FLIGHT
In the case of in-flight re-planning, continuation of a flight refers to the point from which a revised flight
plan applies.
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