5.1.1 The S-VDR should continuously maintain sequential
records of preselected data items relating to the status and output
of the ship’s equipment, and command and control of the ship,
referred to in 5.4.
5.1.2 To permit subsequent analysis of factors
surrounding an incident, the method of recording should ensure that
the various data items can be co-related in date and time during playback
on suitable equipment.
5.1.3 Final recording medium
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5.1.3.1 The final recording medium should be installed
in a protective capsule of either a fixed or float-free type, which
should meet all of the following requirements:
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.1 be capable of being accessed following an incident
but secure against tampering;
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.2 maintain the recorded data for a period of
at least 2 years following termination of recording;
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.3 be of a highly visible colour and marked with
retro-reflective materials; and
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.4 be fitted with an appropriate device to aid
location.
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5.1.3.2 The fixed type protective capsule should
comply with the requirements set out in resolution
A.861(20) with the exception of the resulting requirements
for withstanding penetration.
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5.1.3.3 The float-free type protective capsule
should:
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.1 be fitted with means to facilitate grappling
and recovery;
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.2 be so constructed as to comply with the
requirements specified in resolution MSC.471(101) and to minimize risk of damage during
recovery operations; and
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.3 the device should be capable of transmitting
an initial satellite distress alerting signal and further locating and
homing signals over a period of not less than seven days/168 hours.
5.1.4 The design and construction, which should
be in accordance with the requirements of resolution
A.694(17) and international standards acceptable to the Organizationfootnote, should take special account of the requirements
for data security and continuity of operation as detailed in 5.2 and
5.3.