4.4.1 The provisions for evacuation, together
with the proposed evacuation procedures, should be submitted to the
Administration for consideration at an early stage in the design of
the craft.
4.4.2 If the Administration consider it necessary,
a calculated abandon craft time may be ascertained at the design stage
to ensure that the structural fire protection in accordance with 7.2.5 is adequate.
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(a) Where there are no more reliable data, the
calculated abandon craft time should include the time necessary to
launch, inflate and secure a survival craft ready for embarkation
plus the time taken to fill the survival craft to its required capacity
allowing 5 seconds per person; or the calculated abandon craft time
should be the time taken to fill the survival craft to its required
capacity allowing 10 seconds per person, whichever is greater.
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(b) Where, for structural reasons, or where there
are insufficient crew members for each survival craft to be simultaneously
prepared, the calculated abandon craft time should be taken as the
sum of the times taken for those survival craft not so simultaneously
prepared.
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(c) Where simultaneous preparation of survival
craft is employed, the Administration should ensure that at least
one crew member is available at each embarkation point for organizing
the embarkation of passengers into survival craft. In addition to
the master, the radio operator should not be regarded as a crew member
for this purpose. in all cases, the Administration should ensure compatibility
with 4.3 dealing with escape routes.
4.4.3 The Administration should require a practical
demonstration that in a reasonably representative situation the survival
craft can be deployed and the occupants of the dynamically supported
craft evacuated into them in a time suitably related to the time for
which fire hazard areas are designed to contain fire. The evacuation
time should be demonstrated by an evacuation test which should be
performed either with the full complement of crew and passengers,
or by a series of partial evacuations using the number of persons
at each exit for which that exit is designed, with due concern for
the problems of mass movement or panic.
4.4.4 Any procedures on which certification is
based should be scheduled in the Technical Manual.