P-2 Work Item Specification.pdf

SHIP: USS WICHITA (LCS 13) ITEM NO: 110-10-001

COAR: 16 PCN: ES01-ZAE3

ES01-ZA86

EA01-ZAB9

CSWT FILE NO: 110-001 (LCS 1) CMP: NONE

REVISED: 11 OCT 2023 PLANNER: MCKAIG, DONALD

CORNWELL, RICHARD

TAYLOR, MICHAEL

SSP: SERM-803-27 1 of 4 ITEM NO: 110-10-001

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

1. SCOPE:

1.1 Title: Underwater Hull; repair and preserve

1.2 Location of Work:

1.2.1 Underwater Hull Structures, from the bottom of Keel to Upper Boot Top, including each Appendage

1.3 Identification:

1.3.1 Not Applicable

2. REFERENCES:

2.1 Standard Items

2.2 S9086-7G-STM-010/CH-997 Rev 3, Docking Instructions and Routine Work In Dry Dock

2.3 111-8534696 Rev G, Littoral Combat Ship LCS-1 Class Shell Expansion and Details

2.4 161-8534700 Rev D, Littoral Combat Ship LCS-1 Sea Chest Arrangement & Details

2.5 074-8534694 Rev F, Littoral Combat Ship LCS-1 Standard Structural Details Booklet

2.6 S9086-CQ-STM-010/CH-081 Rev 6, Waterborne Underwater Hull Cleaning of Navy Ships

2.7 T9074-AS-GIB-010/271 Rev 1, Requirements for Nondestructive Testing Methods

2.8 MIL-STD-2035A, Department of Defense Test Method Nondestructive Testing Acceptance Criteria

2.9 DM 330-007, SURFMEPP, Underwater Hull: Preserve Utilizing OEM Representative

2.10 631-8534685 Rev AA, Littoral Combat Ship LCS-1 Class Paint Schedule

2.11 633-8535640 Rev B, Littoral Combat LCS-1 Class Ship Passive Cathodic Protection Arrangement & Details

3. REQUIREMENTS:

3.1 Wash down the underwater hull using clean, pressurized water at 2,000-3,000 pounds per square inch (PSI), removing each surface contaminant, marine fouling and loose non-adhering paint immediately after dry docking.

3.1.1 Accomplish containment and disposal of all contaminated wash water in accordance with each federal, state, and local environmental

SHIP: USS WICHITA (LCS 13)

SSP: SERM-803-27 2 of 4 ITEM NO: 110-10-001

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

regulation.

3.1.2 Ensure hull is kept wet to prevent each surface contaminant from hardening if pressurized wash is not possible within 24 hours of dry docking the ship.

3.2 Accomplish a visual inspection within the first 24 hours after dry docking the ship, upon completion of the hydro pressure water wash cleaning of underwater hull, prior to preservation, from the bottom of the keel to the upper boot top limit, including each shell plating, strut, bilge keel, shaft, maker air girth emitter, fairwater coupling guard, rope guard, sea chest, and each structural member for structural integrity, deterioration, pitting, cracking and each area of damage or distortion, using 2.2 through 2.6 for guidance.

3.2.1 Submit one legible copy, in hard copy or approved

transferrable media, of a report listing results of the requirements of 3.2 to the SUPERVISOR.

3.3 Install each plug or temporary drain line on each overboard discharge, and blank off each scupper/discharge to maintain hull in a dry condition.

3.4 Accomplish ultrasonic testing in accordance with 2.7, using 2.3 and

2.4 for guidance, as designated by the SUPERVISOR. The accept or reject criteria must be in accordance with 2.8. Accomplish 150 EA ultrasonic testing, in the location listed in 1.2.

3.4.1 Submit one legible copy, in hard copy or approved

transferrable media, of a report listing the result of each requirement of 3.4 to the SUPERVISOR.

3.4.1.1 List in one column the design thickness of plate

inspected, using 2.7 for guidance.

3.4.1.2 List in another column, next to the design thickness, each actual thickness reading taken.

3.4.1.3 3 List specific locations with respect to frame, strake or measurements from suitable reference points.

3.5 Accomplish the following repairs using the results of 3.2.1 and 3.4.1, using 2.3 through 2.5 for guidance, as designated by the

SUPERVISOR.

3.5.1 Vee out and weld a total of 700 linear feet of deteriorated and damaged weld.

3.5.2 Accomplish base metal weld repairs for a total of 576 square inches of deteriorated plating and support structure

3.5.2.1 Each surface must be ground to sound metal prior to base metal repair.

3.5.2.2 Fill each local pit and groove with weld material prior to application of each principal build up layer.

3.5.2.3 Each surface of completed base metal repair need not be ground smooth if not greater than 1/8 inch above plating surface.

SSP: SERM-803-27 3 of 4 ITEM NO: 110-10-001

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

3.5.3 Remove existing and install new a total of 40 square feet of deteriorated plating.

3.5.3.1 The smallest insert plate must be a minimum of One

square foot in area.

3.5.3.2 Chip and grind each surface flush in way of each repair.

3.5.3.3 Template each exact size, shape, and configuration of each new frame from existing shipboard conditions.

3.5.4 Accomplish the requirements of 009-012 of 2.1, including Table 2, Columns A and B, Lines One through 7.

3.5.4.1 Accomplish nondestructive testing in accordance with

Line 11.

3.6 Accomplish the requirements of 009-025 of 2.1 for an air hose, water hose, or vacuum box test of each new insert and weld seam. Allowable leakage: None.

3.7 Accomplish the requirements of 009-032 of 2.1, including Table One, Line 5, Columns A, B, E, F and G, for preservation of the underwater hull surface listed in 1.2, using 2.9 and 2.10 for guidance.

3.7.1 Provide the services of an Original Equipment Manufacturer (OEM) for preservation of the underwater hull.

3.8 Remove existing and install new each sacrificial anode on entire hull, including each water jet tunnel, stern tube and thruster in accordance with 2.11.

3.8.1 Apply anti-seize compound conforming to A-A-59313 to all threaded area of each nut and stud.

(I)(G) "TORQUE REQUIREMENTS"

3.8.2 Torque each sacrificial anode retaining nut to 30 foot-pounds.

(V)(G) "RESISTANCE TEST"

3.8.3 Test each sacrificial anode to verify electrical resistance between anode and hull structure is less than 0.1 Ohm.

3.9 Accomplish the requirements of 009-032 of 2.1 for each new and disturbed surface.

4. NOTES:

4.1 ESR: SERM-25-0223-0595 applies

5. GOVERNMENT FURNISHED MATERIAL (GFM):

5.1 LLTM:

1. None.

5.2 PUSH MATERIAL:

1. None.

5.3 KITTED MATERIAL:

SSP: SERM-803-27 4 of 4 ITEM NO: 110-10-001

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

1. None.