259-Navigation Standards and Equipment / 748
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BOS-PRD-07.900505
Version 04. Original date: 01/06/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS OPS Dpt Project Manager. Approved by: BOS Head of Operations. Validated by: BOS Quality Representative.
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x
Check the charts carried on board against the Index of Affected Charts in the
Notices to Mariners
(NMs);
x
Check which notices affect charts on board, and find the Notice in Section II;
x
Check that the previous Notice has been applied to the chart (each chart has, at its bottom left, a list
of corrections written on it by whoever corrected the chart. This information is also available in a
separate Chart Correction Record Log that is maintained on board);
x
If any charts have not been updated, they
shall
be corrected to the previous Notice before the
current notice is applied;
x
Tracings are used to correct charts, when available;
x
Corrections are made in indelible ink, ensuring that standard symbols are used, that the correction is
made neatly, accurately and does not obscure other information on the chart;
x
After correction, an entry is made on the bottom left of the chart and the
Chart Correction Record
Book
.
NOTE: At the bottom of each Notice is a list of all charts affected by it as well as the previous Notice, which affected that chart. The
previous Notice may be sometimes years old, but this information assists in confirming that the last correction(s) have been made
on the chart in question.
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Small corrections
shall
be carried out as follows:
x
Sections III and IV are detached from the NMs and filed: these give a list of Temporary and
Preliminary Notices and Navigation Warnings still in force;
x
Charts on board and in use in the present voyage are corrected for these Notices. The correction is
made in pencil because these Notices are not permanent and may change quickly;
x
While on passage, other Temporary and Preliminary Notices and Navigation Warnings may be
received on Navtex or VHF. Charts in use
shall
be corrected as the information is received.
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SENC information available for display during route planning and route monitoring
should
be subdivided into
the following three categories: Display base, Standart Display and All Other Information.
x
Display to be permanently shown on the ECDIS display, consisting of:
o
Coastline (high water)
o
Own ship’s safety contour
.
It
should
be possible for the mariner to select a safety contour from the depth contours provided
by the SENC. ECDIS
should
emphasize the safety contour over other contours on the display.
o
Isolated underwater dangers of depths less than the safety contour which lie within the safe
waters defined by the safety contour
o
Isolated dangers which lie within the safe water defined by the safety contour, such as fixed
structures, overhead wires, etc.
o
Scale, range and north arrow
o
Units of gepth and height
o
Display mode
x
Standart display consisting of:
o
Display base
o
Drying line
o
Buoys, beacons,other aids to navigation and fixed structures
o
Boundaries of fairways, channels, etc.
o
Visual and radar conspicuous features
o
Prohibited and restricted areas
o
Archipelagic sea lanes
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