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air traffic services unit.
5.6.2.1 If the first aircraft to reach the scene of an
accident is not a search and rescue aircraft, it shall take charge
of on-scene activities of all other aircraft subsequently amving
until the first search and rescue aircraft reaches the scene of
the accident. If, in the meantime, such aircraft is unable to
establish communication with the appropriate rescue coordination
centre or air traffic services unit, it shall, by mutual
agreement, hand over to an aircraft capable of establishing and
maintaining such communications until the amval of the first
search and rescue aircraft.
5.6.3 When it is necessary for an aircraft to convey
information to survivors or surface rescue units, and two-way
communication its not available, it shall, if practicable, drop
communication equipment that would enable direct contact to
be established, or convey the information by dropping a hard
copy message.
5.6.4 When a ground signal has been displayed, the
aircraft shall indicate whether the signal has been understood
or not by the means described in 5.6.3 or, if this is not practicable,
by making the appropriate visual signal.
5.6.5 When it is necessary for an aircraft to direct a
surface craft to the place where an aircraft or surface craft is
in distress, the aircraft shall do so by transmitting precise
instructions by any means at its disposal. If no radio communication
can be established, the aircraft shall make the
appropriate visual signal.
Note.- Air-to-surface and surface-to-air visual signals are
published in Volume III of Doc 9731.
5.7 Procedures for a pilot-in-command
intercepting a distress transmission
Whenever a distress transmission is intercepted by a pilot-incommand
of an aircraft, the pilot shall, if feasible:
a) acknowledge the distress transmission;
b) record the position of the craft in distress if given;
c) take a bearing on the transmission;
d) inform the appropriate rescue coordination centre or air
traffic services unit of the distress transmission, giving
all available information; and
e) at the pilot's discretion, while awaiting instructions, proceed
to the position given in the transmission.
5.8 Search and rescue signals
5.8.1 The air-to-surface and surface-to-air visual signals
in the Appendix shall, when used, have the meaning indicated
therein. They shall be used only for the purpose indicated and
no other signals likely to be confused with them shall be used.
5.8.2 Upon observing any of the signals in the Appendix,
aircraft shall take such action as may be required by the interpretation
of the signal given in that Appendix.
Annex 12 - Search and Rescue
5.9 Maintenance of records
5.9.1 Recommendation.- Each rescue coordination
centre should keep a record of the operational efficiency of the
search and rescue organization in its region.
5.9.2 Recommendation.- Each rescue coordination
centre should prepare appraisals of actual search and rescue
operations in its region. These appraisals should comprke any
pertinent remarks on the procedum used and on the emergency
and survival equipment, and any suggestions for
improvement of those procedures and equipment. Those
appraisals which are likely to be of interest to other States
should be submitted to ICAO for information and
dissemination as appropriate.
Chapter 5
APPENDIX. SEARCH AND RESCUE SIGNALS
(Note.- See Chapter 5, 5.8 of the Annex)
1. Signals with surface craft I) the hoisting of the "code pennant" (vertical red and
white stripes) close up (meaning understood);
1.1 The following manoeuvres performed in sequence by
an aircraft mean that the aircraft wishes to direct a surface 2) the flashing of a succession of "Tk" by signal lamp
craft towards an aircraft or a surface craft in distress: in the Morse code;
a) circling the surface craft at least once; 3) the changing of heading to follow the aircraft.
b) crossing the projected course of the surface craft close
ahead at low altitude and:
1) rocking the wings; or
2) opening and closing the throttle; or
3) changing the propeller pitch.
Note.- Due to high noise level on board surface craft, the
sound signals in 2) and 3) may be less effective than the visual
signal in I) and are regarded as alternative means of
attracting attention.
c) heading in the direction in which the surface craft is to
be directed.
Repetition of such manoeuvres has the same meaning.
1.2 The following manoeuvres by an aircraft means that
the assistance of the surface craft to which the signal is
directed is no longer required:
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