19-Mar USTS Kennedy IBTT.pdf

USTS KENNEDY

USTS1 KENNEDY

ABS Number 7914866 IMO Number 7704930

PRE DRY-DOCK STEEL SURVEY

MMA Boston, MA April 15, 2022

Prepared by Nestor Dimaya of:

TABLE OF CONTENTS

GENERAL PARTICULARS

COATING

STEEL REPAIRS/RENEWALS

ABS RULES PIPE WALL

PREAMBLE

GENERAL ARRANGEMENT

CAPACITY PLAN

REPAIRS

1000: BULKHEAD 119

BHD 119 sketch

Bhd 119 – Stbd side

1010: SIDE FRAMING

Side FRAMES sketch

1020: INNER BOTTOM TANKTOP

IBTT – Plan above tanktop

IBTT – Plan below tanktop

IBTT – Plates to renew

IBTT – Repair details

GENERAL PARTICULARS

Name: USTS KENNEDY

ABS Number: 6704200

IMO Number: 6621662

Call Sign: KVMU

Official Number: 509652

Flag: United States of America

Port: Buzzards Bay, MA

Description: School Ship

Vessel Type: Special Purpose Vessel

Keel Laying Date: February 24, 1966

Delivery Date: July 1, 1967

Class Notation: A1, AMS

Additional Notation: Nil

Length Overall LOA 163.6 Meters

Length between Perpendiculars: 157.5 Meters

Tonnage

Design: 5630.1 Tons

Gross: 13886 Tons

CLASS SURVEYS

Annual Hull Survey 4: Due Date: May 27, 2022

Drydocking Survey: Due Date: May 27, 2022

Special Periodical Survey Hull 11: Due Date: May 27, 2023

Tailshaft Survey: Due Date: May 20, 2023

STATUTORY

Annual Load Line Survey 4: Due Date: May 27, 2022

MMA Buzzards Bay, MA

March 14, 2022 thru March 18, 2022

Performed a condition survey and an assessment of the suspect bulkhead 119 along with the adjacent structural steel members / piping / outfitting steel in spaces/tanks where available.

• The attending Port Engineer was Mr. Jeffrey H. Brown and was supported by the Chief Engineer. The

MARAD representative was Mr. Jeffrey H. Brown.

• Generate a write up for condition assessment in spaces/tanks surveyed and along with a formal repair plan if damage/deficiencies are discovered, based on ABS allowance, criteria tolerance. Assist the attending Port Engineer and the ship’s force to determine repairs required for the shipyard period.

This vessel is not in the Alternate Compliance Program (ACP) with the US Coast Guard.

Guidelines for Structural Steel / Outfitting / Piping Assessment criteria were based on ABS rules, Part 7: Survey after construction using substantial diminution and gross defects, survey performed was for targeting steel repairs/renewals.

Inspection grading criteria for the ABS Hull Inspection and Maintenance Program were the guidelines used for criteria of repairs.

The ABS Coating Condition Guide for field surveyors was followed for coating assessment of existing surface coating systems.

ABS minimum wall thickness for steel pipes was followed for tolerance and based repair/s from wall thickness.

Respectfully submitted, Nestor Dimaya

COATING

Definition of Coating Conditions

PITTING INTENSITY DIAGRAMS

STEEL REPAIRS/RENEWALS

ABS Class for Individual Wastage Allowance

Continue on the following page.

STEEL REPAIRS/RENEWALS

ABS Class for Individual Wastage Allowance

In accordance with ABS rules, following additional thickness measurements in areas of known suspect wastage, a single marginal reading requires additional readings to be taken and evaluated together with close visual examination by the Surveyor in order to determine the extent of the corrosion, as noted in Rules for Survey After Construction 7-A-4/17. For the one plate found with substantial corrosion, a five-point pattern is taken on each panel of the plate within the suspect bay.

Assessment of these gaugings would be considered as the representative value, as noted in Rules for Survey After Construction 7-A-4 Individual plate with substantial corrosion. Notes relating TM reports that single measurements recorded are to represent the average of multiple measurements.

ABS RULES PIPE WALL

STRUCTURAL STEEL / PIPING / OUTFITTING

PRE-SHIPYARD SURVEY

AS OF April 15, 2022

PREAMBLE

1. CONTRACTOR SHALL INCLUDE ALL COST FOR SAFETY, STEEL, LABOR, ACCESSORY, WORK, STAGING, LIGHTING, VENTILATION AND ADDITIONAL SERVICES.

2. THE CONTRACTOR SHALL COORDINATE WORK WITH TANK CLEANING, TANK COATING AND TANK INSPECTION.

3. PRIOR TO ANY WORK, CONFIRM INSULATION TO BE FREE OF ASBESTOS AND PAINT TO BE FREE OF LEAD. IF

ABATEMENT IS REQUIRED, INFORM THE PORT ENGINEER, SHIP’S FORCE AND OWNER’S REP.

4. ALL ACCESS OPENINGS, IF REQUIRED, ARE TO BE INCLUDED IN THE COST AND ARE TO BE APPROVED BY THE COMPANY REPRESENTATIVE, ABS AND USCG. ALL WEIGHTS ARE ESTIMATES AND ARE TO BE VERIFIED BY CONTRACTOR.

5. DURING ALL WORKING HOURS, OWNER’S REPRESENTATIVE AND HIS STAFF SHALL HAVE FREE, READY AND SAFE ACCESS TO THE WORK AND TO ANY OTHER PLACE WHERE WORK IS BEING DONE, WHERE MATERIALS ARE BEING PROCESSED OR STORED IN CONNECTION WITH THE WORK INCLUDING YARDS, DOCKS, WORKSHOP, STORE ROOMS

AND OFFICES OF YARD AND SUBCONTRACTORS.

6. ALL NEW STEEL IN COATED TANKS AND IN WAY OF COATING IN PARTIALLY COATED TANKS SHALL BE GRIT BLASTED TO A NEAR WHITE FINISH (SSPC-SP 10) AS PER *MARAD COATING GUIDELINES APPENDIX 12 AND PRIMED BEFORE

INSTALLATION.

7. ALL MATERIAL TYPE, DIMENSIONS AND WEIGHTS IN THIS SPECIFICATION ARE APPROXIMATE AND ARE TO BE VERIFIED BY THE SHIPYARD ALL DIMENSIONS OR WEIGHTS FOUND TO DIFFER WITH THOSE GIVEN IN THE SPECIFICATION ARE TO

BE BOUGHT TO THE ATTENTION OF THE REPAIR SUPERINTENDENT FOR VERIFICATION.

8. ALL FIT-UP FOR STEEL AND WELDING ARE TO BE ABS STANDARDS AND ARE TO BE INSPECTED AND APPROVED BY COMPANY REPRESENTATIVE, ABS AND USCG. ALL WEIGHTS ARE ESTIMATES AND ARE TO BE VERIFIED BY

CONTRACTOR.

9. BULKHEAD SECTIONS RENEWED SHALL BE RENEWED WITH NEW STIFFENERS EXTENDING AT LEAST 150MM INTO OLD SECTION OF BULKHEAD PLATES AND BUTT WELDED TO EXISTING STIFFENERS AT A 45° ANGLE. COMPLETE NEW OIL

TIGHT COLLARS AND BRACKETS SHALL BE INSTALLED WHERE REQUIRED.

10. WHERE STEEL RENEWALS PASS THROUGH THE BULKHEADS OR IN BULKHEADS, TANKS ARE TO BE HYDRO OR AIR TESTED TO ENSURE WATER TIGHTNESS OF TREATED BULKHEADS AFTER COMPLETION. HIGH PRESSURE AIR (AIR

LANCE) WOULD BE AN ACCEPTABLE ALTERNATIVE.

11. ALLOW FOR RENEWAL OF ATTACHED TRIPPING BRACKETS AND FLAT BAR STIFFENERS IN WAY OF RENEWED

STRUCTURAL MEMBERS AS GIVEN IN SPECIFICATION.

12. WHERE A LARGE SECTION OF PLATING TO BE RENEWED, GREATER THAN ±2 SQUARE METERS, SUPPORT PLATES (STRONGBACKS, BRIDGE PLATES) TO BE INSTALLED TO PREVENT DISTORTION OF EXISTING STRUCTURES. REMOVED

AFTER FIT-UP FOUND SATISFACTORY AND ATTACHMENTS TO BE GROUND FLUSH.

13. AFTER REPAIR FOUND SATISFACTORY BY ABS SURVEYOR, CONTRACTOR IS TO COAT THE STEEL WITH A 2 COAT

MARINE COATING SYSTEM.

14. QUANTITIES OF STEEL SPECIFIED ARE APPROXIMATE. CONTRACTOR IS RESPONSIBLE FOR DETERMINING CORRECT TYPE

OF MATERIAL AND QUANTITIES OF STEEL

PREAMBLE

15. PIPE SUPPORTS:

U-BOLTS SHALL BE MANUFACTURED FROM SOLID STAINLESS STEEL BAR STOCK. TEFLON PADS (1/3 PIPE DIAMETER IN

WIDTH) SHALL BE INSTALLED UNDER THE PIPELINE SPANNING THE BOLT PATTERNS.

SADDLE-TYPE HANGER/SUPPORT SHALL BE MANUFACTURED FROM FLAT BAR, BLASTED AND PRIME COATED PRIOR TO INSTALLATION, WITH TWO (2) LEGS PER HANGER UNLESS DIRECTED OTHERWISE. CLAMPING AREAS SHALL BE

WRAPPED WITH TEFLON.

16. CHANGES IN THE GRADE OF STEEL AND/OR THE THICKNESS OF STEEL MUST HAVE THE PRIOR APPROVAL AT THE

REPAIR SUPERINTENDENT, ABS SURVEYOR AND USCG INSPECTOR.

17. ALL DISTURBED COATINGS INCLUDING ADJACENT DECK AND ADJACENT TANKS ARE TO BE REPAIRED BY BLASTING TO

SSPC-SP3 AND RECOATED IN ACCORDANCE WITH THE PAINT SCHEDULE.

18. COMPANY REPRESENTATIVE AND HIS STAFF SHALL HAVE THE RIGHT TO AN EARLY INSPECTION UNESCORTED.

19. UPON COMPLETION OF ALL STEEL REPAIRS, CLEAN TANKS TO SATISFACTION OF CHIEF MATE PRIOR TO REMOVAL OF

STAGING.

20. UPON COMPLETION OF CLEANING, REMOVE STAGING AND AGAIN CLEAN TANKS TO SATISFACTION OF CHIEF MATE.

GENERAL ARRANGEMENT

CAPACITY PLAN

WATER BALLAST TANKS

FORE PEAK W.B.T. STEM - 14 150.54 24.87 242.88 F

No. 2 Double Bottom (Port) 42 - 66 101.52 2.81 131.31 F No. 2 Double Bottom (Stbd) 42 - 66 101.52 2.81 131.31 F No. 6 Double Bottom (Port) 140 - 171 189.95 2.68 111.6 A No. 6 Double Bottom (Stbd) 140 - 171 190.67 2.68 111.6 A

AFT PEAK W.B.T. 196 - 213 264.16 28.76 235.87 A

Total of 6 Tanks TOTAL 998.36 12.95 41.63

POTABLE WATER TANKS

POTABLE (Stbd) 119 - 125 10,607 39.5 36.50 33.50 A DEEP TANK III (Port) 140 - 157 82,687 307.9 13.07 99.86 A DEEP TANK III (Stbd) 140 - 157 77,235 287.6 13.09 99.78 A DEEP TANK IV (Port) 158 - 171 43,859 162.9 13.23 138.31 A DEEP TANK IV (Stbd) 158 - 171 39,667 147.3 13.28 138.16 A

Total Tanks (5) TOTAL 254,055 945.2 14.15 109.5 A

FEED WATER TANKS

No. 5A Double Bottom (Center) 130 - 139 64.80 2.50 63.37 A No. 5A Double Bottom (Port) 130 - 139 43.10 2.74 64.23 A No. 5A Double Bottom (Stbd) 130 - 139 36.16 2.74 65.32 A DISTILLED WATER (Port) 119 - 122 10.64 48.16 29.74 A DISTILLED WATER (Stbd) 119 - 122 10.64 48.16 29.74 A

Total Tanks (5) TOTAL 165.34 8.49 59.69

COMPARTMENT FRAMES

CAPACITIES

FEED WTR

100%

(L. TONS)

VCG

ABOVE BL

(FEET)

LCG FROM

MIDSHIP

(FEET)

COMPARTMENT FRAMES

CAPACITIES

POT. WTR

100% (GAL.)

POT. WTR

100%

(L. TONS)

VCG

ABOVE BL

(FEET)

LCG FROM

MIDSHIP

(FEET)

COMPARTMENT FRAMES

CAPACITIES

SALT WTR

100%

(L. TONS)

VCG

ABOVE BL

(FEET)

LCG FROM

MIDSHIP

(FEET)

CAPACITY PLAN

FUEL OIL TANKS

FUEL OIL SETTLER (Port) 119 - 128 736.36 114.14 13.03 37.13 A FUEL OIL SETTLER (Stbd) 119 - 128 736.36 114.14 13.03 37.13 A

AUX MACHY ROOM DAY TANK 117 - 119 95.24 14.76 11.50 2.72 F

No. 3 D.B.T. Inboard (Port) 66 - 92 580.11 89.86 2.50 74.0 F No. 3 D.B.T. Inboard (Stbd) 66 - 92 597.56 92.56 2.50 74.0 F

No. 3 D.B.T. Outboard (Port) 66 - 92 802.06 124.24 2.73 69.57 F No. 3 D.B.T. Outboard (Stbd) 66 - 92 802.06 124.24 2.73 69.57 F No. 4 D.B.T. Outboard (Port) 92 - 119 1,197.85 185.55 2.63 7.60 F No. 4 D.B.T. Outboard (Stbd) 92 - 119 1,197.85 185.55 2.63 7.60 F

No. 5F D.B.T. (Center) 120 - 129 469.49 76.96 2.50 39.74 A No. 5F D.B.T. (Port) 119 - 129 394.87 61.20 2.66 38.13 A No. 5F D.B.T. (Stbd) 119 - 129 394.87 61.20 2.66 38.13 A DEEP TANK II Fwd 22 - 33 1,430.33 221.70 11.69 198.13 F DEEP TANK II Aft 33 - 42 1,716.57 266.07 11.67 176.10 F

DEEP TANK V (Port) 171 - 187 1,134.16 175.79 11.51 173.97 A DEEP TANK V (Stbd) 171 - 187 980.93 152.04 11.32 173.50 A

Total Tanks (16) TOTAL 13,293.66 2060.0 7.39 24.89 F

DIESEL OIL TANKS

AMR DIESEL TANK 106 - 107 985.00 3.03 11.47 4.91 F

EDG DIESEL TANK 112 - 114 878.00 2.70 48.92 10.62 A

Total Tanks (2) TOTAL 1,863.00 5.7 29.11 2.40 A

COMPARTMENT FRAMES

CAPACITIES

FUEL OIL

98% (BBLS)

FUEL OIL

98%

(L. TONS)

VCG

ABOVE BL

(FEET)

LCG FROM

MIDSHIP

(FEET)

COMPARTMENT FRAMES

CAPACITIES

DIESEL OIL

98% (GAL.)

DIESEL OIL

98%

(L. TONS)

VCG

ABOVE BL

(FEET)

LCG FROM

CAPACITY PLAN

LUBRICATION OIL TANKS

LUBE OIL SETTLER (Port) 132 1/2 - 134 1,209.00 4.09 36.75 0.00 LUBE OIL STORAGE (Stbd) 131 - 132 1/2 1,287.00 4.35 36.26 61.68

AMR CLEAN OIL 111 - 112 201.00 0.68 8.33 57.62

AMR RENOVATED OIL 111 - 112 145.00 0.49 13.39 0.00

AMR SEPARATOR OIL 118 - 119 139.00 0.47 7.56 61.68

AMR SLUDGE DIRTY OIL 114 - 116 405.00 1.37 5.58 57.62

Total Tanks (6) TOTAL 3,386.0 11.45 29 48

COMPARTMENT FRAMES

CAPACITIES

LUBE OIL

98% (GAL.)

LUBE OIL

98%

(L. TONS)

VCG

ABOVE BL

(FEET)

LCG FROM

REPAIRS

AS OF April 15, 2022

SUBJECT TO CHANGE

1000: BULKHEAD 119

1. See preamble.

2. Bulkhead 119 plating inboard lower section on the port side has general wastage greater than class allowance. Repair: Crop and renew the bhd plate (coordinate renewal with the inner bottom tank top plate renewal, to advice owner's rep). To Crop and renew the bhd plate from 15" inboard of the vertical stiffener #3 to 28'-0" outboard and from the inner bottom tanktop up 12". ABS Gr A mild steel 8'-0" x 12" x 1/2"plt 571.2Lbs. Port fuel oil settling tank will require marine chemist certification for safe access and safe for hot work.. Pipe penetration just above the bilge well to advice with CFR.

3. Bulkhead 119 plating outboard lower section on the port side has general wastage greater than class allowance. Repair: Crop and renew the bhd plate (coordinate renewal with the inner bottom tank top plate renewal). To Crop and renew the bhd plate from the port sideshell to 48" inboard and from the inner bottom tanktop up 24". ABS Gr A mild steel 4'-0" x 24" x 1/2"plt 163.2Lbs. *Dock Item. Port fuel oil settling tank will require marine chemist certification for safe access and safe for hot work.

See following sketch for location and more details.

BHD 119 sketch

Side framing aft dwg# S11-3-7

Bhd 119 – Stbd side

4. Bulkhead 119 starboard side lower section just inboard of the stbd shell and above the inner bottom tanktop has isolated wastage greater than class allowance. Repair: To Clad weld build up bhd plate 12" x 6" as marked by the owner's rep. *Dock Item. No. 4 Stbd/Outboard Fuel Oil D.B.T. and the Stbd F.O.

Settling tank will require marine chemist certification for safe access and safe for hot work.

5. Sideshell starboard side lower section just fwd of bhd 119 and above the inner bottom tanktop has isolated wastage greater than class allowance. Repair: To Clad weld build up shell plate 12" x 6" as marked by the owner's rep. *Dock Item. Port F.O. Settling tank and the No. 4 port/Outboard Fuel Oil D.B.T. will require marine chemist certification for safe access and safe for hot work.

Fit up to be witnessed and approved by the attending ABS Surveyor along with the port engineer/owner's rep.

Once installation found satisfactory to performed 100% tightness test on all new weldments. To apply two marine epoxy coating on all new plate and all damaged paint.

1010: SIDE FRAMING

1. See preamble.

2. Frame 116 port side lower section has localized wastage greater than class allowance. Repair: Crop and renew the lower side frame stiffener. Coordinate renewal with the inner bottom tank top plate renewal, to advice owner's rep). Crop and renew the frame at the lower 18" to the inner bottom tanktop. ABS Gr A mild steel MC 18" x 4" x 45.8# Channel cut to angle (web 0.50") 68.7Lbs. *Dock Item. No. 4 Port/Outboard Fuel Oil D.B.T. will require marine chemist certification for safe access and safe for hot work. Allow frame web cutout for the sideshell lap plate.

3. Frame 117 port side lower section has localized wastage greater than class allowance. Repair: Crop and renew the lower side frame stiffener. Coordinate renewal with the inner bottom tank top plate renewal, to advice owner's rep). Crop and renew the frame at the lower 18" to the inner bottom tanktop. ABS Gr A mild steel MC 18" x 4" x 45.8# Channel cut to angle (web 0.50") 68.7Lbs. *Dock Item. No. 4 Port/Outboard Fuel Oil D.B.T. will require marine chemist certification for safe access and safe for hot work. Allow frame web cutout for the sideshell lap plate.

4. Frame 118 port side lower section has localized wastage greater than class allowance. Repair: Crop and renew the lower side frame stiffener. Coordinate renewal with the inner bottom tank top plate renewal, to advice owner's rep). Crop and renew the frame at the lower 18" to the inner bottom tanktop. ABS Gr A mild steel MC 18" x 4" x 45.8# Channel cut to angle (web 0.50") 68.7Lbs. *Dock Item. No. 4 Port/Outboard Fuel Oil D.B.T. will require marine chemist certification for safe access and safe for hot work. Allow frame web cutout for the sideshell lap plate.

5. Sideshell port side lower section just fwd of bhd 119 and above the inner bottom tanktop has isolated wastage greater than class allowance. Repair: To Clad weld build up shell plate 12" x 6" as marked by the owner's rep. *Dock Item. Port F.O. Settling tank and the No. 4 port/Outboard Fuel Oil D.B.T. will require marine chemist certification for safe access and safe for hot work.

Side FRAMES sketch

Side framing aft dwg# S11-3-7

1020: INNER BOTTOM TANKTOP

NOTE:

Dock Item, installation to be sequential and staggered as directed by the owner's rep. Fixed ballast access hole for removal of high density crete ballast material to be approved by the port engineer, allow for 1,500 Sq cube.

SMADT foundation and SMADT piping to move, set aside, save and re-install once repair and coating found satisfactory.

Abandoned piping to confirm with the chief engineer, task to remove and scrap.

All piping system to confirm with the chief engineer and the owner's rep prior to any actions. All Pipe penetrations in way of inner bottom tanktop renewal to crop 12" above and below the inner bottom tanktop – Install new piping along with a pipe sleeve/coupling at the penetration. For a 1" Ø pipe allow for 50 feet, 1-1/2" Ø allow for 20 feet, 2" Ø allow for 20 feet, 2-1/2" Ø allow for 50 feet, 3" Ø allow for 20 feet and 4" Ø allow for 20 feet along with required sleeve/coupling.

Grating to remove requires reference marking for re-install. Catwalk leg along with sole plate/landing pad to save, move aside and re-install once repair found satisfactory. Other supports in way of tanktop renewal tasked for a

CFR.

1. Inner Bottom Tanktop Plate 1st port/outboard off the center strake has general wastage greater than class allowance fwd of bhd 119. Repair: Crop and renew the tanktop plate (coordinate renewal with bhd plate renewal, to advice owner's rep). To Crop and renew the tanktop plate from 15" aft of frame 116 to 12" fwd of Frame 120 and from the centerline strake long weld seam to the 1st port outboard long'l weld seam. ABS Gr A mild steel 6'-8 1/2" x 7'-9" x (19/32") use 5/8"plt 1,325.7Lbs. No. 4 port/Inboard Fixed Ballast D.B.T. and the Cofferdam/pipe tunnel will require marine chemist certification for safe access and safe for hot work.

2. Inner Bottom Tanktop Plate 2nd port/outboard off the center strake has general wastage greater than class allowance fwd of bhd 119. Repair: Crop and renew the tanktop plate (coordinate renewal with bhd plate renewal, to advice owner's rep). To Crop and renew the tanktop plate from the existing transverse weld seam fwd of Frame 114 to 12" fwd of Frame 120 and from the 2nd long weld seam port of CL to the 3rd long'l weld seam port of CL. ABS Gr A mild steel 6'-5" x 15'-0" x 1/2"plt 1,963.5Lbs. The Cofferdam/pipe tunnel, No. 4 port/Inboard Fixed Ballast D.B.T., No. 4 port/Outboard F.O. D.B.T. and No.

5FP F.O. D.B.T. will require marine chemist certification for safe access and safe for hot work.

3. Inner Bottom Tanktop Plate 3rd port/outboard off the center strake has general wastage greater than class allowance fwd of bhd 119. Repair: Crop and renew the tanktop plate (coordinate renewal with bhd plate renewal, to advice owner's rep). To Crop and renew the tanktop plate from the existing transverse weld seam fwd of Frame 114 to 12" fwd of Frame 120 and from the 3rd long weld seam port of CL to the 4th long'l weld seam port of CL. ABS Gr A mild steel 6'-5" x 15'-0" x 1/2"plt 1,963.5Lbs. No. 4 port/Outboard F.O. D.B.T. and No. 5FP F.O. D.B.T. will require marine chemist certification for safe access and safe for hot work.

1020: INNER BOTTOM TANKTOP

4. Inner Bottom Tanktop Plate 4th port/outboard off the center strake has general wastage greater than class allowance fwd of bhd 119. Repair: Crop and renew the tanktop plate (coordinate renewal with bhd plate renewal, to advice owner's rep). To Crop and renew the tanktop plate from 15" aft of frame 115 to the existing transverse weld seam aft of Bulkhead 119 and from 4th long'l weld seam port of CL to the 5th long'l weld seam port of CL. ABS Gr A mild steel 6'-11" x 10'-0" x (19/32") use 5/8"plt 1,551.3Lbs. *Dock Item. The Port F.O. Settling Tank, No. 4 port/Outboard F.O. D.B.T. and No. 5FP F.O. D.B.T. will require marine chemist certification for safe access and safe for hot work.

5. Inner Bottom Tanktop Stringer Strake port has general wastage greater than class allowance fwd of bhd

119. Repair: Crop and renew the tanktop plate (coordinate renewal with bhd plate renewal, to advice owner's rep). To Crop and renew the tanktop plate from 15" aft of frame 115 to the existing transverse weld seam aft of Bulkhead 119 and from port sideshell to the existing long weld seam inboard. ABS Gr A mild steel 7'-8" x 10'-0" x (19/32") use 5/8"plt 1,955.0Lbs. The Port F.O. Settling Tank, No. 4 port/Outboard F.O. D.B.T. and No. 5FP F.O. D.B.T. will require marine chemist certification for safe access and safe for hot work. Pipe penetration to crop and install new pipe along with pipe sleeve in way of the tanktop penetration.

See following page for sketches and more information.

6. Manhole riser, ring and manhole cover plate for the ER cofferdam on the port side aft of bhd 119 has general wastage. Repair: Crop out the entire manhole component and install new (coordinate renewal with bhd plate renewal, to advice owner's rep).

IBTT – Plan above tanktop

IBTT – Plan below tanktop

IBTT – Plates to renew

IBTT – Repair details