Advice for the ship’s crew
VDR data provides investigators with invaluable evidence, but only if it is properly saved and recovered. This circular highlights the importance and potential difficulties associated with downloading and reviewing VDR data post-incident. It also aims to provide some suggestions for improvement.
Three quarters of VDR recordings reviewed found flaw in some way. There are a variety of reasons why the provided data was missing, incomplete or damaged, but two mains factors were identified relating to on board actions:
- The bridge team did not have a full understanding of the operation of the VDR fitted on their ship
- VDR data was not promptly saved after the incident and was consequently overwritten and lost
See attached file: ALCO20150011 Voyage Data Recorders (VDR).pdf
航行数据记录仪(VDR)
给船员的建议
航行数据记录仪(VDR)只有正确保存并恢复航行数据，调查员才能从中获得宝贵的证据。这篇通函强调了事件发生后下载和查看航行数据记录的重要性和潜在的困难，并提供一些改进的建议。
当审查航行数据记录时，会发现有四分之三的数据存在一定程度的缺陷。造成数据缺失、不完整或损坏的原因众多，得到认同的以下2个主要因素与船上操作有关：
- 驾驶台人员对船上配置的航行数据记录仪的操作未充分理解
- 在事件发生后没有及时保存航行数据记录，因此有关记录被覆盖及丢失
详细信息请参阅附件。
