4 Intermediate survey
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - 2011 ESP Code – International Code on the Enhanced Programme of Inspections During Surveys of Bulk Carriers and Oil Tankers, 2011 – Resolution A.1049(27) - Annex A – Code on the Enhanced Programme of Inspections During the Surveys of Bulk Carriers - Part B – Code on the Enhanced Programme of Inspections During Surveys of Bulk Carriers Having Double-Side Skin Construction - 4 Intermediate survey

4 Intermediate survey

Parent topic: Part B – Code on the Enhanced Programme of Inspections During Surveys of Bulk Carriers Having Double-Side Skin Construction

4.1 General

  4.1.1 Items that are additional to the requirements of the annual survey may be surveyed either at the second or third annual survey or between these surveys.

  4.1.2 The extent of survey is dependent upon the age of the ship as specified in 4.2, 4.3 and 4.4.

  4.1.3 Concurrent crediting to both intermediate survey and renewal survey for surveys and thickness measurements of spaces shall not be acceptable.

4.2 Double-side skin bulk carriers 5 to 10 years of age

4.2.1 Ballast tanks

  4.2.1.1 For tanks used for water ballast, an overall survey of representative tanks selected by the surveyor shall be carried out. The selection shall include fore and aft peak tanks and a number of other tanks, taking into account the total number and type of ballast tanks. If such overall survey reveals no visible structural defects, the examination may be limited to verification that the corrosion prevention system remains efficient.

  4.2.1.2 Where POOR condition, corrosion or other defects are found in water ballast tanks or where a hard protective coating was not applied from the time of construction, the examination shall be extended to other ballast tanks of the same type.

  4.2.1.3 In ballast tanks other than double-bottom tanks, where a hard protective coating is found in POOR condition and it is not renewed, or where a soft or semi-hard coating has been applied, or where a hard protective coating was not applied from the time of construction, the tanks in question shall be examined and thickness measurements carried out as considered necessary at annual intervals. When such breakdown of a hard protective coating is found in ballast double-bottom tanks, where a soft or semi-hard coating has been applied, or where a hard protective coating has not been applied, the tanks in question may be examined at annual intervals. When considered necessary by the surveyor, or where extensive corrosion exists, thickness measurements shall carried out.

  4.2.1.4 In addition to the above requirements, suspect areas identified at previous surveys shall be subject to overall and close-up survey.

4.2.2 Cargo holds

  4.2.2.1 An overall survey of all cargo holds shall be carried out.

  4.2.2.2 Where considered necessary by the surveyor as a result of the overall survey as described in 4.2.2.1, the survey shall be extended to include a close-up survey of those areas of the structure in the cargo holds selected by the surveyor.

4.2.3 Extent of thickness measurements

  4.2.3.1 Thickness measurements shall be carried out to an extent sufficient to determine both general and local corrosion levels at areas subject to close-up survey where required as per 4.2.2.2 and as provided in 4.2.1.4.

  4.2.3.2 The extent of thickness measurements may be specially considered provided the surveyor is satisfied by the close-up survey that there is no structural diminution and the hard protective coatings are found to be in a GOOD condition.

  4.2.3.3 Where substantial corrosion is found, the extent of thickness measurements shall be increased in accordance with the requirements of annex 10. These extended thickness measurements shall be carried out before the survey is credited as completed. Suspect areas identified at previous surveys shall be examined. Areas of substantial corrosion identified at previous surveys shall have thickness measurements taken. For bulk carriers built under IACS Common Structural Rules, the identified substantial corrosion areas shall be:

  • .1 protected by coating applied in accordance with the coating manufacturer's requirements and examined at annual intervals to confirm the coating in way is still in good condition; or alternatively

  • .2 required to be measured at annual intervals.

  • Explanatory note:

  • For existing bulk carriers, where owners elect to coat or recoat cargo holds as noted above, consideration may be given to the extent of the close-up surveys and thickness measurement. Prior to the coating of cargo holds of existing ships, scantlings shall be ascertained in the presence of a surveyor.

  4.2.3.4 Where hard protective coating is fitted in cargo holds and is found in GOOD condition, the extent of close-up surveys and thickness measurements may be specially considered.

4.3 Double-side skin bulk carriers 10 to 15 years of age

  4.3.1 The requirements of the intermediate survey shall be to the same extent as the previous renewal survey as required in 2 and 5.1. However, internal examination of fuel oil tanks and pressure testing of all tanks shall not be required unless deemed necessary by the attending surveyor.

  4.3.2 In application of 4.3.1, the intermediate survey may be commenced at the second annual survey and be progressed during the succeeding year with a view to completion at the third annual survey in lieu of the application of 2.1.1.

  4.3.3 In application of 4.3.1, an underwater survey may be considered in lieu of the requirements of 2.2.

4.4 Double-side skin bulk carriers exceeding 15 years of age

  4.4.1 The requirements of the intermediate survey shall be to the same extent as the previous renewal survey required in 2 and 5.1. However, internal examination of fuel oil tanks and pressure testing of all tanks shall not be required unless deemed necessary by the attending surveyor.

  4.4.2 In application of 4.4.1, the intermediate survey may be commenced at the second annual survey and be progressed during the succeeding year with a view to completion at the third annual survey in lieu of the application of 2.1.1.

  4.4.3 In application of 4.4.1, a survey in dry-dock shall be part of the intermediate survey. The overall and close-up surveys and thickness measurements, as applicable, of the lower portions of the cargo holds and water ballast tanks shall be carried out in accordance with the applicable requirements for intermediate surveys, if not already performed.

  • Note: Lower portions of the cargo holds and ballast tanks are considered to be the parts below the light ballast water line.

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