3 Annual Survey
3.1 General
3.1.1 The annual survey should consist of an examination
for the purpose of ensuring, as far as practicable, that the hull
hatch covers, coamings and piping are maintained in a satisfactory
condition and should take into account the service history, condition
and extent of the corrosion prevention system of ballast tanks and
areas identified in the survey report file.
3.2 Examination of the Hull
3.2.1 Examination of the hull plating and its
closing appliances should be carried out as far as can be seen.
3.2.2 Examination of watertight penetrations should
be carried out as far as practicable.
3.3 Examination of Hatch Covers and Coamings
3.3.1 It should be confirmed that no unapproved
changes have been made to the hatch covers, hatch coamings and their
securing and sealing devices since the last survey.
3.3.2 A thorough survey of cargo hatch covers
and coamings is only possible by examination in the open as well as
closed positions and should include verification of proper opening
and closing operation. As a result, the hatch cover sets within the
forward 25% of the ship's length and at least one additional set,
such that all sets on the ship are assessed at least once in every
5-year period, should be surveyed open, closed and in operation to
the full extent in each direction at each annual survey, including:
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.1 stowage and securing in open condition;
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.2 proper fit and efficiency of sealing in closed
condition; and
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.3 operational testing of hydraulic and power
components, wires, chains and link drives.
The closing of the covers should include the fastening of all
peripheral, and cross joint cleats or other securing devices. Particular
attention should be paid to the condition of hatch covers in the forward
25% of the ship's length, where sea loads are normally greatest.
3.3.3 If there are indications of difficulty in
operating and securing hatch covers, additional sets above those required
by 3.3.2, at the discretion of the surveyor, should be tested in operation.
3.3.4 Where the cargo hatch securing system does
not function properly, repairs should be carried out under the supervision
of the Administration. Where hatch covers or coamings undergo substantial
repairs, the strength of securing devices should be upgraded to comply
with annex 13.
3.3.5 For each cargo hatch cover set, at each
annual survey, the following items should be surveyed:
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.1 cover panels, including side plates, and stiffener
attachments that may be accessible in the open position by close-up
survey (for corrosion, cracks, deformation);
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.2 sealing arrangements of perimeter and cross
joints (gaskets for condition and permanent deformation, flexible
seals on combination carriers, gasket lips, compression bars, drainage
channels and non return valves);
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.3 clamping devices, retaining bars, cleating
(for wastage, adjustment, and condition of rubber components);
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.4 closed cover locating devices (for distortion
and attachment);
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.5 chain or rope pulleys;
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.6 guides;
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.7 guide rails and track wheels;
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.8 stoppers;
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.9 wires, chains, tensioners and gypsies;
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.10 hydraulic system, electrical safety devices
and interlocks; and
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.11 end and interpanel hinges, pins and stools
where fitted.
3.3.6 At each hatchway, at each annual survey,
the coamings, with plating, stiffeners and brackets should be checked
for corrosion, cracks and deformation, especially of the coaming tops.
3.3.7 Where considered necessary, the effectiveness
of sealing arrangements may be proved by hose or chalk testing supplemented
by dimensional measurements of seal compressing components.
3.3.8 Where portable covers, wood or steel pontoons,
including close-up survey of hatchcover plating are fitted, the satisfactory
condition of the following should be confirmed:
- wooden covers and portable beams, carriers or sockets for the
portable beam, and their securing devices;
- steel pontoons;
- tarpaulins;
- cleats, battens and wedges;
- hatch securing bars and their securing devices;
- loading pads/bars and the side plate edge;
- guide plates and chocks;
- compression bars, drainage channels and drain pipes (if any).
3.4 Examination of Cargo Holds
3.4.1 For bulk carriers over 10 years of age,
the following should be carried out:
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.1 overall survey of all cargo holds. Where a
protective coating is provided in cargo holds and is found in good
condition, the extent of close-up surveys and thickness measurements
may be specially considered;
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.2 close-up examination of sufficient extent,
minimum 25% of frames, to establish the condition of the lower region
of the shell frames including approx. Lower one third length of side
frame at side shell and side frame end attachment and the adjacent
shell plating in the forward cargo hold. Where this level of survey
reveals the need for remedial measures, the survey should be extended
to include a close-up survey of all of the shell frames and adjacent
shell plating of that cargo hold as well as a close-up survey of sufficient
extent of all remaining cargo holds;
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.3 when considered necessary by the surveyor,
thickness measurement should be carried out. If the results of these
thickness measurements indicate that Substantial Corrosion is found,
the extent of thickness measurements should be increased in accordance
with annex 10.
3.4.2 For bulk carriers over 15 years of age,
the following should be carried out:
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.1 overall survey of all cargo holds. Where a
protective coating is provided in cargo holds and is found in good
condition, the extent of close-up surveys and thickness measurements
may be specially considered;
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.2 close-up examination of sufficient extent,
minimum 25% of frames, to establish the condition of the lower region
of the shell frames including approx. Lower one third length of side
frame at side shell and side frame end attachment and the adjacent
shell plating in the forward cargo hold and one other selected cargo
hold. Where this level of survey reveals the need for remedial measures,
the survey should be extended to include a close-up survey of all
of the shell frames and adjacent shell plating of that cargo hold
as well as a close-up survey of sufficient extent of all remaining
cargo holds;
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.3 when considered necessary by the surveyor,
thickness measurement should be carried out. If the results of these
thickness measurements indicate that Substantial Corrosion is found,
the extent of thickness measurements should be increased in accordance
with annex 10.
3.4.3 All piping and penetrations in cargo holds,
including overboard piping, should be examined.
3.5 Examination of Ballast Tanks
3.5.1 Examination of ballast tanks should be carried
out when required as a consequence of the results of the renewal survey
and intermediate survey. When considered necessary by the surveyor,
thickness measurement should be carried out. If the results of these
thickness measurements indicate that substantial corrosion is found,
the extent of thickness measurements should be increased in accordance
with annex 10.
3.6 Additional annual survey requirements
for the foremost cargo hold of ships subject to SOLAS regulation XII/9.1
of the Convention in accordance with the requirements of annex 12
Ships subject to regulation XII/9.1 of the Convention are
those meeting all of the following conditions:
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.1 bulk carriers of 150 m in length and upwards
of single side skin construction;
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.2 carrying solid bulk cargoes having a density
of 1,780 kg/m3 and above;
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.3 constructed before 1 July 1999; and
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.4 constructed with an insufficient number of
transverse watertight bulkheads to enable them to withstand flooding
of the foremost cargo hold in all loading conditions and remain afloat
in a satisfactory condition of equilibrium as specified in regulation
XII/4.3 of the Convention.
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