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2.4.1.3 If, after passing the outer marker fix in case of
precision approach, or after descending below 300 m (1 000 ft)
above the heliport in case of non-precision approach,' the
reported visibility or controlling RVR falls below the specified
minimum, tlie approach may be continued to DA/H or
M D M . In any case, a helicopter shall not continue its
approach-to-land at any heliport beyond a point at which the
limits of the operating minima spccificd for that heliport
would be infringed.
2.4.2 Meteorologjcal observations
Note.- The procedures for making meteorological
observations on board aircraft inflight andfbr recording and
reporting them are contained in Annex 3, the PANS-ATM
(Doc 4444) and the appropriate Regional Supplementary
Procedurcs (Doc 7030).
2.4.3 Hazardous flight conditions
Hazardous flight conditions encountered, other than those
associated with mctcorological conditions, shall be reported to
the appropriate aeronaulical station as soon as possible. The
reports so rendered shall give such details as may be pertinent
to the safety of other aircraft.
2.4.4 Flight crew members at duty stations
2.4.4.1 Take-of and landing. All flight crew members
required to be on flight deck duty shall be at their stations.
2.4.4.2 En route. All flight crew members required to be
on flight deck duty shall remain at their stations except when
their absence is necessary for the performance of duties in
connection with the operation of the helicopter or for
physiological needs.
2.4.4.3 Seat belts. All flight crew members shall keep
their seat belt fastened when at their stations.
2.4.4.4 Safety harness. Any flight crew member
occupying a pilot's seat shall keep the safety harness fastened
during the take-off and landing phases; all other flighl crew
members shall keep their safety harness fastened during the
take-off and landing phases unless the shoulder straps interfere
with the performance of their duties, in which case the
shoulder straps may be unfastened but the seat belt must
remain fastened.
Note.- Safety hanless includes shoulder straps und a seat
belt which may be used independently.
2.4.5 Use of oxygen
All flight crew members, when engaged in performing duties
essential to the safe operation of a helicopter in flight, shall use
breathing oxygen continuously whenever the circumstances
prevail for which its supply has been required in 2.3.8.1
or 2.3.8.2.
2.4.6 Safeguarding of cabin crew and passengers
in pressurized aircraft in the event of loss
of pressurization
Recommendation.- Cabin crew sho~lldb e safeguarded so
as to ensure reasonable probabili~~ of their retaining
Section 11, Chnpter 2 Annex 6 - Operation of Aircrap
consciousness during any emergency descent ~ h i c hnz ay be
necessary in the event of loss of pressurization and, in
addition, they should have such n~euns o f protection as will
etlable them to administer first aid to passengers during
stabilized.flight following the emergerzcp Passengers should be
safeguarded by such devices or operutional procedures as will
ensure reusonable probability of their szlrviving the efsects of
hypoxia in the ewnt of loss of pressurization.
Note.- It is not envisaged that cabin crew will nlways be
able to provide assistance to passengers during emergency
descent proced~res which may be required in the event of loss
of pressurization.
2.4.7 In-flight operational
instructions
Operalional instructions involving a change in the ATS flight
plan shall, when applicable, be coordinated with the appropriate
ATS unit before transmission to the helicoptcr.
Note.- When the above coordination has not been
possible, operational instructions do not relieve a pilot of the
re~ponsibzlity~fobrt aining an appropriate cleurance.from an
ATS unit, if applicable, before rnakin.g a change in flight pla~z.
2.4.8 Instrument flight procedures
2.4.8.1 One or more instrument approach procedures to
serve each final approach and take-off area or heliport utilized
for instrument flight operations shall be approved and
promulgated by the State in which the heliport is located, or by
the State which is responsible for the heliport when located
outside the territory of any State.
2.4.8.2 All helicopters operated in accordance with
instrument flight rules shall comply with the instrument
approach procedures approved by the State in which the
hcliport is located, or by the State which is responsible for the
heliport when located outside the territory of any State.
Note I.- Operationul procedures recommended for the
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