enhanced hull survey

Chevron Shipping Company LLC

SAMPLE

DOCUMENTATION ONBOARD (ENHANCED SURVEY REPORT FILE)

FOR

ENHANCED HULL SURVEYS PROGRAM OF

OIL TANKERS


REVISION RECORD SHEET

DATE CHAPTER/ SECTION

DESCRIPTION OF CHANGES

August 1, 2002 00 Initial Issue


TABLE OF CONTENTS

CHAPTER 1 GENERAL 1.1 INTRODUCTION 1.2 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS, PART 1, APPENDIX 1/B 1.3 NOMENCLATURE 1.4 TYPICAL FIVE YEAR SURVEY CYCLE

CHAPTER 2 SURVEY REPORT FILE 2.1 CLASS SURVEY REPORTS AND CONDITION EVALUATION REPORTS 2.2 THICKNESS MEASUREMENTS REPORTS 2.3 SURVEY PLANNING DOCUMENT

2.3.1 General 2.3.2 Special Survey 2.3.3 Intermediate Survey

CHAPTER 3 SUPPORTING DOCUMENTS 3.1 MAIN STRUCTURAL PLANS OF CARGO AND BALLAST TANKS 3.2 PREVIOUS REPAIR HISTORY

3.2.1 Shipyard (And Voyage) Steel Repair Reports 3.2.2 Tank Coating (And Anode) Inspection And Repair Reports 3.2.3 Outer Hull Coating Inspection And Repair Reports 3.2.4 Bottom Pit Inspection And Repair Reports 3.2.5 Piping Inspection And Repair Reports

3.3 CARGO AND BALLAST HISTORY 3.4 EXTENT OF USE OF INERT GAS PLANT AND TANK-CLEANING PROCEDURES 3.5 INSPECTIONS AND ACTIONS TAKEN BY SHIP'S PERSONNEL WITH REFERENCE TO

(I) STRUCTURAL DETERIORATION IN GENERAL (II) LEAKAGE IN BULKHEADS AND PIPING (III) CONDITION OF COATING OR CORROSION PROTECTION

3.6 ANY OTHER INFORMATION THAT WILL HELP TO IDENTIFY CRITICAL STRUCTURAL AREAS AND/OR SUSPECT AREAS REQUIRING INSPECTION

CHAPTER 4 USCG INSPECTION REPORTS 4.1 GENERAL

APPENDIX A COMPUTER DISK

A.1 GENERAL


INDEX OF TABLES

TABLE 1.4.1 TYPICAL FIVE-YEAR CYCLE FOR HULL SURVEYS

TABLE 2.1.1 CLASS SURVEY REPORTS AND CONDITION EVALUATION REPORTS

TABLE 2.2.1 THICKNESS MEASUREMENT REPORTS CLASS REQUIREMENTS

TABLE 2.3.1 SURVEY PLANNING DOCUMENTS

TABLE 3.1.1 MAIN STRUCTURAL PLANS OF CARGO AND BALLAST TANKS

TABLE 3.2.1 SHIPYARD (AND VOYAGE) STEEL REPAIR REPORTS

TABLE 3.2.2 TANK COATING (AND ANODE) INSPECTION AND REPAIR REPORTS

TABLE 3.2.3 OUTER HULL COATING INSPECTION AND REPAIR REPORTS

TABLE 3.2.4 BOTTOM PIT INSPECTION AND REPAIR REPORTS

TABLE 3.2.5 PIPING INSPECTION AND REPAIR REPORTS

TABLE 3.5.1 INSPECTION REPORTS BY VESSEL PERSONNEL

TABLE 3.6.1 OTHER INFORMATION RELATED TO HULL OWNERS REQUIREMENTS

(VISUAL INSPECTION REPORTS, THICKNESS MEASUREMENT REPORTS, ETC)

TABLE 4.1.1 USCG INSPECTION REPORTS


Chapter 1 General

1.1 Introduction This Documentation Onboard is to comply with the ABS Rules for Building and Classing Steel Vessels, Part 1, Appendix 1/B, Hull Surveys of Oil Tankers, which requires the Owner to supply and maintain onboard documentation that includes a Survey Reports File and Supporting Documents. This document is to be kept onboard for the lifetime of the vessel. This document should be readily available for the Surveyor. This document is also to be available in the Owners management office (Chevron Shipping Company LLC, San Francisco, California, USA).

1.2 ABS Rules for Building and Classing Steel Vessels, Part 1, Appendix 1/B Appendix 1/B in Part 1 of the ABS Rules for Building and Classing Steel Vessels, originally implemented on 1 January 1993, incorporates IACS unified requirement UR.Z10.1, Hull Surveys of Oil Tankers, to comply with IMO Regulation 13G in Annex 1 to 1973/78 MARPOL Convention, adopted by the Marine Environmental Protection Committee (MEPC) of IMO on 6 March 1992 and effective on 6 July 1995.

1.3 Nomenclature For clarity of definition and reporting of inspection data, standard nomenclature for structural elements as recommended by the Tanker Structure Co-operative Forum is adopted. Figures 1.1, 1.2 and 2.2 show generally accepted nomenclature.

1.4 Typical Five Year Survey Cycle Table 1.4.1 shows a typical schedule for annual, intermediate and special hull surveys and drydocking within the 5-year survey cycle. The due date and allowable window for completing each survey are also indicated. Depending on the vessels trading pattern and schedule, typically each survey is commenced and completed within the allowable window. The Chevron hull maintenance scheme is to carry out the shipyard overhaul in conjunction with the out-of-water drydocking and special hull survey at 5-year intervals, and underwater inspection in lieu of drydocking (UWILD) in conjunction with the intermediate survey at 2-year intervals. The Critical Area Inspection Plan (CAIP) is due for inspection yearly on vessels trading in the Trans-Alaska Pipeline Service (TAPS). There is a 2-month window available before and after the due date.


Table 1.4.1

TYPICAL FIVE-YEAR CYCLE FOR HULL SURVEYS1

MONTHS 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 15 MONTH SPECIAL SURVEY HULL2 9 MONTH 9 MONTH INTERMEDIATE HULL3 X 3 MONTH 3 MONTH 3 MONTH 3 MONTH 3 MONTH 3 MONTH 3 MONTH 3 MONTH ANNUAL HULL4 X X X X

6 MONTH 6 MONTH 6 MONTH DRYDOCK5 X

2 MONTH 2 MONTH 2 MONTH 2 MONTH 2 MONTH 2 MONTH

2 MONTH 2 MONTH

2 MONTH

C.A.I.P.6 X X X X X

LEGEND: X indicates due date Shaded area indicates available window Numbers above shaded areas indicate window periods before and after due date

1 This table is for reference only and may change due to flag state requirements or Classification Society rule changes. 2 Special Survey is due at the end of the five-year cycle. The Special Hull Survey can be commenced on the 4th Annual Survey, up to fifteen months before the

due date. 3 Intermediate Surveys are due at mid-point of five-year special survey/certificate cycle. All Intermediate Surveys can be done either at or between the 2nd or 3rd

Annual Surveys. The Hull Intermediate Survey has a nine-month window before and after the due date. 4 Annual Surveys are due at the anniversary of the related major survey of certificate. There is a three-month window before and after the anniversary date. 5 Drydock survey cycles incorporate ABS Rules effective May 1989 requiring two D/D surveys every five-year period, with no more than three years between

any two drydocking surveys. An approved underwater inspection by diver equivalent to a drydocking survey (UWILD) may be accepted at alternate Drydocking Surveys. At the Special Survey Hull, the vessel is to be placed in a drydock or upon a slipway.

6 Critical Area Inspection Plan (CAIP) is due for inspection yearly on vessels trading in the Trans-Alaska Pipeline Service (TAPS). There is a 2-month window available before and after the due date.

X

X


Chapter 2 Survey Report File

This chapter relates to reports and documents issued or required by ABS in relation to hull surveys and kept onboard as specified in ABS Rules for Building and Classing Steel Vessels, Part 1, Appendix 1/B, Section 6.2.

2.1 Class Survey Reports and Condition Evaluation Reports

The vessels Master is responsible to keep onboard the following class reports:

Reports of structural surveys, including

Annual Survey Hull Intermediate Survey Hull Special Survey Hull Drydocking/UWILD Survey Damage/Repair Survey Reports ABS SafeHull Condition Assessment Reports and

Certificates for the Condition Assessment Program (CAP), if applicable

Condition Evaluation Reports Issued upon completion of Special Survey

Table 2.1.1 lists these reports and indicates their location onboard.


Table 2.1.1

CLASS SURVEY REPORTS AND CONDITION EVALUATION REPORTS

DATE OF REPORT TITLE

LOCATION ONBOARD


2.2 Thickness Measurements Reports Table 2.2.1 lists Class-required thickness measurement reports and indicates their location onboard.


Table 2.2.1

THICKNESS MEASUREMENT REPORTS CLASS REQUIREMENTS


LOCATION ONBOARD


2.3 Survey Planning Document

2.3.1 General The vessels Master is responsible to keep survey planning documents onboard. Table 2.3.1 lists available survey planning documents for special and intermediate surveys and indicates their location onboard.

2.3.2 Special Survey The San Francisco office is responsible to prepare and update the survey planning document for each special survey 1215 months prior to the completion of that special survey and forward it to the vessels Master.

2.3.3 Intermediate Survey The San Francisco office is responsible to prepare and update the survey planning document for each intermediate survey 1215 months prior to the completion of that intermediate survey and forward it to the vessels Master.


Table 2.3.1

SURVEY PLANNING DOCUMENTS


LOCATION ONBOARD


Chapter 3 Supporting Documents

This chapter relates to any plans, reports and documents related to the hull structure and its condition prepared for or by the Owner and kept onboard as supporting documents for the planning and execution of hull surveys as specified in ABS Rules for Building and Classing Steel Vessels, Part 1, Appendix 1/B, Section 6.3.

3.1 Main Structural Plans of Cargo and Ballast Tanks One complete set of as built structural plans are available onboard and one set is also available in the San Francisco office.

Table 3.1.1 contains the list of main structural plans.


Table 3.1.1

MAIN STRUCTURAL PLANS OF CARGO AND BALLAST TANKS

DRAWING TITLE LOCATION ONBOARD


3.2 Previous Repair History

This section relates to available documents and reports prepared for or by the Owner in regards to repairs carried out concerning hull structure.

3.2.1 Shipyard (And Voyage) Steel Repair Reports Table 3.2.1 lists available reports and indicates their location onboard.


Table 3.2.1

SHIPYARD (AND VOYAGE) STEEL REPAIR REPORTS


LOCATION ONBOARD


3.2.2 Tank Coating (And Anode) Inspection And Repair Reports Table 3.2.2 lists available reports and indicates their location onboard.


Table 3.2.2

TANK COATING (AND ANODE) INSPECTION AND REPAIR REPORTS


LOCATION ONBOARD


3.2.3 Outer Hull Coating Inspection And Repair Reports Table 3.2.3 lists available reports and indicates their location onboard.


Table 3.2.3

OUTER HULL COATING INSPECTION AND REPAIR REPORTS


LOCATION ONBOARD


3.2.4 Bottom Pit Inspection And Repair Reports Table 3.2.4 lists available reports and indicates their location onboard.


Table 3.2.4

BOTTOM PIT INSPECTION AND REPAIR REPORTS


LOCATION ONBOARD


3.2.5 Piping Inspection And Repair Reports Table 3.2.5 lists available reports and indicates their location onboard.


Table 3.2.5

PIPING INSPECTION AND REPAIR REPORTS


LOCATION ONBOARD


3.3 Cargo and Ballast History The Survey Planning Document (see section 2.3) contains information on the usage of cargo and ballast ratio for each tank and past trading history.

3.4 Extent of Use of Inert Gas Plant and Tank-Cleaning Procedures The comprehensive history (log book) of IGS plant and tank-cleaning procedures is available onboard and can be obtained from the vessels Master.

3.5 Inspections and Actions Taken by Ship's Personnel With Reference To (i) Structural Deterioration in General, (ii) Leakage in Bulkheads and Piping, (iii) Condition of Coating or Corrosion Protection Table 3.5.1 contains a list of documents and reports related to any such inspections and actions by vessel personnel, and indicates their location onboard.


Table 3.5.1

INSPECTION REPORTS BY VESSEL PERSONNEL


LOCATION ONBOARD


3.6 Any Other Information That Will Help To Identify Critical Structural Areas and/or Suspect Areas Requiring Inspection Table 3.6.1 contains a list of any other Owners documents and reports relevant to hull, such as other Visual Inspection Reports, Thickness Measurement Reports, etc., that were prepared for Owners assessment purposes, and indicates their location onboard.


Table 3.6.1

OTHER INFORMATION RELATED TO HULL OWNERS REQUIREMENTS (VISUAL INSPECTION REPORTS, THICKNESS MEASUREMENT REPORTS, ETC)


LOCATION ONBOARD


Chapter 4 USCG Inspection Reports

4.1 General The vessels Master is responsible to keep onboard any documents and reports relevant to hull condition issued by the USCG such as Critical Area Inspection Plan (CAIP) reports, Vessel Boarding Reports, etc. CAIP reports are only required for vessel operating in the Trans-Alaskan Pipeline Service (TAPS). Table 4.1.1 contains a list of any available USCG-issued documents and reports and indicates their location onboard.


Table 4.1.1

USCG INSPECTION REPORTS


LOCATION ONBOARD


Appendix A Computer Disk

A.1 General The attached computer disk contains this document (Documentation Onboard) in its entirety as a Microsoft Word 97 for Windows file. The filename is Documentation Onboard (Hull Surveys).DOC and it should be used to update any of the tables contained herein as new documents and reports related to hull surveys become available in the future.

Title PageRevision record SheetTable of ContentsIndex of TablesChapter 1 - GeneralChapter 2 - Survey Report FileChapter 3 - Supporting DocumentsChapter 4 - USCG Inspection ReportsAppendix A - Computer Disk

enhanced hull survey

Documents

class survey reports

survey reports file

inspection chapter

thickness measurements

piping inspection

hull surveys table

anode inspection

pit inspection