Hull and Structure Annual Surveys. Regulations: General General Cargo Ships Ro-Ro, Passenger Ships Other Service Notations TNS Applicable Rules and Procedures

Hull and Structure Annual Surveys

Regulations: GeneralGeneral Cargo ShipsRo-Ro, Passenger ShipsOther Service NotationsTNS

Applicable Rules and Procedures :

...…………………….......………………..Ch.3 Sec.1

.....…………………......……………... Ch.4 Sec.7 [2]…..…………………………… Ch.4 Sec.6 [2-4-6]

..…..……………………………………. Ch.4 Sec.8.....................................……………………………………... 02 and 10

Annual Survey of Hull

3Hull and Structure Annual Surveys

► Annual survey is held within 3 months before and after each anniversary date,

► No postponement is granted,

► Survey is to consist of an examination ensuring the hull, hatch covers, hatch coamings, closing appliances, equipment and relating piping are maintained in satisfactory condition,

► General examination of Hull & its closing appliances

► Decks

► Shell plating and rudder part above water-line

► Hatches covers, hatch coamings & closing appliances

► Confirmation is to obtain that no unapproved changes have been made

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► Mechanical operated hatch covers:

Hatch covers and tightness devices of long’l, transverse & intermediate cross junctions (gaskets, gasket lips, compression bars, drainages channels),

Clamping devices, retaining bars, cleating,

Chain and rope pulleys,

Guides, guide rails, track wheels, stoppers,

Chains, tensioning devices,

► Mechanical operated hatch covers:

Hydraulic system essential to closing & securing,

Safety locks and retaining devices

ASH


► Portables covers, wooden/steel pontoons:

Wooden covers, portable beams, carriers or sockets for portable beams & their securing devices,

Steel pontoons, tarpaulins (at least 2),

► Portables covers, wooden/steel pontoons:

Cleats, battens, and wedges,

Hatch securing bars and their securing devices,

Loading pads/bars and side plate edges,

Guide plate and chocks,

Compression bars, drainage channels and drain pipes, if any

CHECKING THE SATISFACTORY CONDITION

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► Hatch coaming plating and their stiffeners, where applicable,

► Hatch coaming drainage arr. and non-return valves, drains not blocked,

► Survey of hatch covers including,

Stowage and securing in open condition,

proper fit and efficiency of sealing in closed condition,

Operational testing of hydraulic & power components, wires, chains, link devices

► Closing appliances of superstructures, engine casings & skylights

► Bulwarks, guard rails & freeing ports,

► Ventilators, air pipes & overflow pipes their closing devices

► Flame screens on vents to all bunker tanks

► Weld connection between air pipes and deck plating


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► Ladders on weather deck

► Pipe lines & cable runs

► Sidescuttles & deadlights, chutes & other opening with closing devices

► Scupper and sanitary discharges, valves on discharge lines & their controls

► Anchoring & mooring equipment

Including emergency release of anchor cable when applicable


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► Masts and spars, shrouds and attachments

► Forecastle Space

► Cargo holds

Including ‘tween decks

Bulkheads

Bilges

► Engine room

► Water Ballast Tanks, if annual inspection required


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► Main & auxiliary steering gear

Instructions for change over

Communication

► Watertight bulkhead penetrations

Including remote control of fore peak valve

► No changes in the structural fire protection

► Loading guidance facilities

► Loading calculator

► Stability file


General Cargo Ships

► Definitions:

Suspect areas are location showing substantial corrosion and/or areas are considered to be prone to rapid wastage,

Overall survey is a survey intended to report on the overall condition of the hull structure to determine the extent of close-up survey.

Close-Up survey is a survey where the details of structural components are within the close visual inspection range of the surveyor,


General Cargo Ships

► Definitions (continued):

Suspect areas identified at previous SSH are subject overall and close-up survey,

Close-up survey of the hatch cover and hatch coaming plating and stiffeners,

Overall and close-up survey of the cargo holds for the vessels over 10 years:

• For ships between 10-15 years: overall survey pf one fw’d and one aft cargo hold including tween deck spaces,

• Overall survey of all cargo holds and close-up survey of min. 25% of side shell frames,


General Cargo Ships

► Surveyor may extent scope of survey including UTM,

► If coating condition is good, extent of close-up survey may be considered,

► All piping and penetrations in cargo hold including overboard piping to examine,

Examination of ballast tanks when required is to be carried out, if necessary UTM can be requested

External examination of the air pipes, if necessary, internal examination may be required


General Cargo Ships

► Any damage such as wastage over allowable limits including buckling, detachment, fracture, which affect the vessel’s structural, watertight and weathertight integrity, is to be promptly and thoroughly repaired. Areas concerned:

Side shell frames, their end attachments and shell plating,

Deck plating and deck structure,

Bottom structure and bottom plating,

Watertight bulkheads,

Hatch covers and hatch coamings,

Innerbottom structure and plating,

Long’l bulkheads Oiltight bulkheads,

Weld connection between deck plating and air pipes,

Ventilators, including closing appliances, bunker and vent piping system.

► If repair facilities are not available, the vessel may be allowed to sail to next port where repair facilities available


Shell & Inner Doors

► Ref: Ch4 Sec6 [2]

Operating & maintenance manual

Operating procedures

Structural arrangements & welding

• Plating, primary structure; secondary stiffeners; hinge & arms; bearings & thrust bearings & clearances; hull & door side supports of securing; supporting & locking devices; shell plating surrounding the openings


Shell & Inner Doors

► Surveys as per annual survey

Structural arrangements & welding continued

• Close visual inspection of securing, supporting & locking devices:

• Inspection of welding & measurement of clearances as needed

• NDT and/or U/S measurements as necessary

• Close visual inspection of sealing arrangements

• Drainage arrangements, bilge wells, drain pipes, non return valves

• Test of the bilge system between inner & outer doors


Shell & Inner Doors

► Surveys as per annual survey

Functional tests

• Doors to be examined between complete opening & closing operation.

• Check proper working & engagement of thrust bearings & locking devices

• Securing, supporting & locking devices are to be examined during the operation cycle.

• Check the interlocking such that they can only operate in the proper sequence

• Check the hydraulic securing devices remain engaged when loss of hydraulic power occurs


Shell & Inner Doors

► Functional tests continued:

Surveys as per annual survey

• Open/close position indicators of doors, locking devices to be checked at remote stations

• Other safety devices checked such as:

• Isolation, securing & locking of hydraulic system from other hydraulic systems

• Access to operating panels

• Notice plates

• Warning indicators


Shell & Inner Doors



• Hose test or equivalent

• Working test of indicator system, including visual & audible alarms on bridge & operating panels

• Lamp test function

• Fail safe performance

• Power supply for indicator system

• Check condition of sensors & their protection from water, ice & mechanical damage


Shell & Inner Doors



• Working test of water leakage detection system (including audible alarms on bridge & in ER) for inner doors & the area between bow & inner door

• Television surveillance system

• Electrical operating equipment

Regulations: GeneralGeneral Cargo ShipsRo-Ro, Passenger ShipsOther Service Notations

Applicable Rules and Procedures :

...…………………….......………………..Ch.3 Sec.2

.....…………………......……………... Ch.4 Sec.7 [3].…………..…………………………… Ch.4 Sec.6

..…..……………………………………. Ch.4 Sec.8

Intermadiate Survey of Hull


Intermediate Survey of Hull

Requirements for All Ships:

► Intermediate survey is to be held at or between either the 2nd or 3rd Annual survey,

► Those items which are additional to the requirements of Annual Surveys may be surveyed either or between the 2nd and 3rd Annual Survey,

► No postponement is granted,

For the ships between 5-10 years of age:

► A survey planning meeting should be held

► Ultrasonic thickness measurement of the suspect areas,

► Internal survey of representative spaces,

► Survey scope can be increased and UTM can be requested if deemed necessary.




► For the ships between 10-15 years of age:

A survey planning meeting should be held

Ultrasonic thickness measurement of the suspect areas,

Internal survey of all spaces,

Survey scope can be increased and UTM can be requested if deemed necessary.




► For the ships more than 15 years of age:

A survey planning meeting should be held

Ultrasonic thickness measurement of the suspect areas,

Internal survey of all spaces,


Tightness test of inner bottom plating, if considered necessary



Requirements for General Cargo Ships:


Close-up survey and ultrasonic thickness measurement of the suspect areas,

Overall survey of one forward and one aft cargo hold,

Overall survey of Representative SW Ballast Tanks,







Overall survey of all cargo holds,

Overall survey of all SW Ballast Tanks,







Overall survey of one forward and one aft cargo hold,

Overall survey of Representative SW Ballast Tanks,







Overall survey of all cargo holds,

Overall survey of all SW Ballast Tanks,





► For the ships over 15 years of age:

The scope of INT is the scope of preceding SSH


Close-up survey of all shell frames, their upper and lower attachments and adjacent shell plating in all cargo holds,

Close-up survey of all transverse bulkheads, in all cargo holds and in all ballast tanks,

Close-up survey of all transverse webs with associated plating and framing in each ballast tank,

Close-up survey of all cargo hold hatch covers and coamings,

Close- up survey of all deck plating inside line of hatch openings between cargo hatches,

Close-up survey of all areas of inner bottom plating.




► For the ships over 15 years of age:

Ultrasonic Thickness Measurement requirements:

Min. 3 Transverse section i.w.o. cargo area,

Each deck plate,

Each bottom, wind&water and shell plates,

Duct keel and pipe tunnel plating and internals,

Structural members subject to close-up survey.

Documents

Hull and Structure Annual Surveys. Regulations: General General Cargo Ships Ro-Ro, Passenger Ships Other Service Notations TNS Applicable Rules and Procedures