5.2 Final recording medium
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.333(90) – Adoption of Revised Performance Standards for Shipborne Voyage Data Recorders (VDRs) – (Adopted on 22 May 2012)This Resolution applies to VDRs installed on or after 01 July 2014. - Annex – Recommendation on Performance Standards for Shipborne Voyage Data Recorders (VDRs) - 5 Operational Requirements - 5.2 Final recording medium

5.2 Final recording medium

 The final recording medium should consist of the following items:

  • .1 fixed recording medium;

  • .2 float-free recording medium; and

  • .3 long-term recording medium.

5.2.1 Fixed recording medium

 The fixed recording medium should be installed in a fixed protective capsule which should meet all of the following requirements:

  • .1 be capable of being accessed following an incident but secure against a physical or electronically manipulated change or deletion of recorded data;

  • .2 maintain the recorded data for a period of at least two years following termination of recording;

  • .3 maximize the probability of survival against fire, shock, penetration and deep-sea-pressure and recovery of the final recorded data after any incident;

  • .4 be of a highly visible colour and marked with retro-reflective materials; and

  • .5 be fitted with an appropriate device to aid location under water.

5.2.2 Float-free recording medium

 The float-free recording medium should be installed in a float-free capsule which should meet all of the following requirements:

  • .1 be fitted with means to facilitate grappling and recovery;

  • .2 maintain the recorded data for a period of at least six months following termination of recording;

  • .3 be so constructed as to comply with the requirements specified in resolution MSC.471(101) and to minimize risk of damage during recovery operations;

  • .4 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; and

  • .5 be capable of being accessed following an incident but secure against a physical or electronically manipulated change or deletion of recorded data.

5.2.3 Long-term recording medium

 The long-term recording medium should:

  • .1 be capable of being accessed from an internal, easily accessible area of the ship; and

  • .2 provide access to the data held on it but be secured against a physical or electronically manipulated change or deletion of recorded data.


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