Attachment_2_Spec_GREENBRIER_(WLR_75F)_UPDD_FQ4_AMH_17R0.pdf

USCGC GREENBRIER (WLR 75501)

SPECIFICATION FOR UNPLANNED DRYDOCK REPAIRS

FY2017

Developed By: George O. Fulenwider

(Rev-0, 24 August 2017)

USCGC GREENBRIER (WLR-75F) UNPLANNED DRYDOCK AVAILABILITY FY2017

ii (Rev-0)

TABLE OF CONTENTS

Revisions Record ......................................................................................................................................... iii Consolidated List of References ................................................................................................................... iv Consolidated List of Government-furnished Property ................................................................................. vi Consolidated List of Critical Inspection Items ........................................................................................... vii Principal Characteristics – Tender and barge ............................................................................................ viii General Requirements WORK ITEM 1: Propulsion Shafting; Remove, Inspect, and Reinstall WORK ITEM 2: Steering Rudder: Renew WORK ITEM 3: Propellers, Renew WORK ITEM 4: Drydock - Tender WORK ITEM 5: Temporary Services, Provide – Tender and Barge WORK ITEM 6: Sea Trial Performance, Support, Provide WORK ITEM 7: Towing Services, Provide iii (Rev-0)

REVISIONS RECORD

This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.

DATE REV# WORK

ITEM#

CHANGES MADE

NOTE : All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporated.

iv (Rev-0)

CONSOLIDATED LIST OF REFERENCES

The below-listed documents form a part of this specification to the extent specified herein. Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.

All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast Guard at an appropriate time, or upon request, free of charge. Other Government documents may be accessed – free of charge – as follows:

• MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm

• Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp

• Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws::

www.gpoaccess.gov

The Government is aware of the following internet web links where contractors may procure commercial specifications:

• American Welding Society (AWS): http://www.awspubs.com/index.php

• ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/

• NFPA: http://www.nfpa.org

• SSPC Standards and pictorial guides: http://shopping.netsuite.com/sspcmarketplace

COAST GUARD DRAWINGS

Coast Guard Drawing 75F WLR 085-001, Rev A, Curves of Form Coast Guard Drawing 75F WLR 085-008, Rev 2, Lines Plan Coast Guard Drawing 75F WLR 085-012, Rev -, Docking Block Arrangement (‘F’ Class) Coast Guard Drawing 75F WLR 243-001, Rev 3, Shafting Arrangement Coast Guard Drawing 75F WLR 243-002, Rev 6, Shaft Details Coast Guard Drawing 75F WLR 245-003, Rev 2, Propeller, Fairwater & Guard (6-blade) Coast Guard Drawing 75F WLR 562-001, Rev 1, Rudder Arrangements Coast Guard Drawing 75F WLR 562-003, Rev 4, Steering Rudders & Stocks

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors

Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General

Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and

Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2014, Drydocking Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2014, Temporary

Services http://www.assistdocs.com/search/search_basic.cfm http://www.uscg.mil/directives/default.asp http://www.gpoaccess.gov/ http://www.awspubs.com/index.php http://www.techstreet.com/ http://www.nfpa.org/ http://shopping.netsuite.com/sspcmarketplace v (Rev-0)

Coast Guard Commandant Instruction (COMDTINST) M16672.2D, Mar 1999, Navigation Rules, International-Inland

OTHER REFERENCES

International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller -

Manufacturing Tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50 m, Inclusive MIL-PRF-16173, 2006, Corrosive Preventive Compound, Solvent Cutback, Cold Application MIL-STD-2191, Nov 1992, Repair Welding, Weld Cladding, Straightening, and Cold Rolling of Main

Propulsion Shafting vi (Rev-0)

CONSOLIDATED LIST OF GOVERNMENT-FURNISHED PROPERTY

The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.

WORK

ITEM

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

1 Y **Propulsion Shaft NSN: 3040-01-501-2508 1 ea. $16,000.00 2 Y Steering Rudder NSN: 2040-01-503-0291 1 ea $3,000.00 3 Y Propeller, LH NSN: 2010-01-501-5465 1 ea. $15,000.00 3 Y Propeller, RH NSN: 2010-01-501-5459 1 ea $15,000.00

**New or refurbished equipment that the Government may provide for installation in place of existing equipment.

vii (Rev-0)

CONSOLIDATED LIST OF CRITICAL INSPECTION ITEMS

The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see SFLC Std Spec 0000, paragraph 3.2.6.5 (Inspection report particulars)):

Work Item Title

3 Propeller, Renew viii (Rev-0)

PRINCIPAL CHARACTERISTICS – TENDER AND BARGE

75’ WLR (F-CLASS), INLAND RIVER BUOY TENDER

PHYSICAL

Length overall 75' 8-5/8" Depth 8' 0" Maximum beam 24' 0" Height of highest projection N/A Full load draft 5' 0 7/16" LCF Draft Full load displacement 176.25 Long Tons SW Shore tie voltage requirements N/A Frame spacing 1' 6"

MACHINERY

Number of propellers 2 Number of blades 6 Diameter of propeller 46" Pitch 51" fixed

RPM 450

130' CGB, BARGE

PHYSICAL

Length overall 130' 0" Depth 7' 6" Maximum beam 30' 0" Frame spacing 15" - 30" Full load draft 4’ 3" (LCF Draft) Full load displacement 240.76 Long Tons SW

1 (Rev-0)

00000_1216_FLT

REC_00000_FLT_Commercial Project @ Contractor’ Facility (1212)

General Requirements

1. SCOPE

1.1 Intent. This standard specification invokes general requirements for conducting vessel repairs performed at a commercial contractor’s facility for Coast Guard vessels.

1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and 'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General

Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and

Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General. The Contractor shall conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability.

NOTE

The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.

2 (Rev-0)

3.2 Contractor-provided fire watch personnel. The Contractor shall provide fire watch personnel and equipment.

3.2 Fire watch requirements. The Contractor shall refer to 3.3.1.3 (Fire watch requirements) of SFLC Std Spec 0000, in accomplishing the following task:

• Provide portable fire extinguishers for Coast Guard fire watch personnel. Coast Guard fire watch is in lieu of contractor personnel during the hours of 0800-1600, Monday through Friday, and limited to two Coast Guard fire watch personnel.

• Provide fire watch personnel and fire extinguishers for the duration of the availability period, during and beyond noted Coast Guard fire watch support.

3.3 Preservation requirements. The Contractor shall accomplish all preservation tasks, including touch-ups, in accordance with SFLC Std Spec 6310.

3.3.1 Brand name approval. Ensure that all contractor-furnished coatings are in accordance with SFLC Std Spec 6310, Appendix C (Authorized Coatings for Use on Cutters and Boats).

3.3.2 Coating colors and system color schemes. Ensure that all colors and color coat/paint schemes are in accordance with COMDTINST M10360.3, Chapter 6 (Cutter and Boat Colors Exterior and Interior).

NOTE

Unless a waiver has been granted (in writing) by the KO, deviations from authorized coatings (listed in Appendix C of SFLC Std Spec 6310) and colors and color schemes (provided in Chapter 6 of COMDTINST M10360.3) are strictly prohibited.

3.4 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and NDI in accordance with SFLC Std Spec 0740.

3.5 Environmental protection requirements. The Contractor shall adhere to the following environmental protection requirements in accordance with the SFLC Stand Spec 0000:

3.5.1 Contractor operated (non USCG) facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix A, Requirements for Environmental Protection at Contractor Operated (Non USCG) Facilities, as applicable, during the performance of this availability. Contractor shall plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor shall comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item shall not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.2 Test and procedures. The Contractor shall be required to promptly conduct tests and procedures for the purpose of assessing whether operations are in compliance with applicable Environmental Laws. Analytical work shall be done by qualified laboratories; and where required by law, the laboratories shall be certified.

3.5.3 Regulatory notifications. The Contractor shall be responsible for all regulatory notification requirements in accordance with Federal, State and local regulations. In cases where the Coast Guard must also provide public notification, such as storm water permitting, the Contractor must coordinate with the Contracting Officer or COR, and if work is being performed at a USCG Facility, the local Facility Engineer or Engineering Officer. The Contractor shall submit copies of all regulatory notifications to the Contracting Officer and the local Facility Engineer or Engineering Officer prior to commencement of work activities. Regulatory notifications shall be

3 (Rev-0) provided for including but not limited to demolition, renovation, National Pollutant Discharge Elimination System (NPDES) defined site work, and remediation of controlled substances such as asbestos, hazardous waste, and lead paint.

3.5.4 Environmental manager. The Contractor shall appoint in writing an Environmental Manager for the project, and shall be responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager shall ensure compliance with Hazardous Waste Program requirements, including hazardous waste handling, storage, manifesting, and disposal; implement the Contractors’ Environmental Management Plan; ensure that all environmental permits are obtained, maintained, and closed out; ensure compliance with Storm Water Program Management requirements; ensure compliance with Hazardous Materials including storage, handling, and reporting requirements; as well as coordinate any remediation of regulated substances such as lead, asbestos, and polychlorinated biphenyl (PCB). This may be a collateral position; however the individual must be trained to accomplish the following duties; ensure waste segregation and storage compatibility requirements are met; inspect and manage Satellite Accumulation areas;

ensure only authorized personnel add wastes to containers; ensure all Contractor personnel are trained in 40 CFR requirements and individual position requirements; coordinate removal of waste containers; and maintain the Environmental Records binder and required documentation, including environmental permits compliance and close-out.

3.5.5 HW disposal. Contractor shall comply with SFLC Std Spec 0000 Appendix A, Requirements For Environmental Protection At Contractor Operated (Non USCG) Facilities for HW disposal.

3.6 Local Policy. None.

3.7 SFLC standard specification approved changes. The Contractor shall be aware that the following are approved changes to published SFLC 2014 Edition Standard Specifications and supersede published content:

3.7.1 SFLC Standard Specification 6310, Requirements for Preservation of Ship Structures.

3.7.1.1 SFLC Std Spec 6310, page C-2, Section C1.5.1. Change from "lead-containing paint as 0.06%" to "lead-containing paint as 0.009%".

3.7.1.2 SFLC Std Spec 6310, page 4, Section 2 References, Group- Other References. Add “The Society for Protective Coatings (SSPC) Paint Application Guide No. 11, 2008, Protecting Edges, Crevices, and Irregular Steel Surfaces by Stripe Coating”

3.7.1.3 SFLC Std Spec 6310, page Appendix C-6, add "Hempel Hempadur Multi-Strength GF 35870" with FED- STD-595 color "Black/Red" under ANTI-ABRASION COATING, ICE BREAKING CAPABLE VESSELS, <235’.

3.7.1.4 Standard Spec 6310, page Appendix A-7, Under "UNDERWATER (U/W) BODY/BOOT-TOP", Add line Column 1: Option for U/W Body and Boot-Top, Steel Hulls, <154', in Salt Water. Column 2: Blank. Column 3:

SSPC-SP 10/NACE NO. 2 using grit conforming to MIL-A-22262 / (1.5-3.5) - or - SSPC-SP WJ-2(M)/NACE WJ-2(M). Columns 4 and 5: Same as "U/W Body and Boot-Top, Aluminum Hull, High Speed (>30 knots)".

3.7.2 SFLC Standard Specification 0000 General Requirements.

3.7.2.1 SFLC Std Spec 0000, paragraph 1.3 ‘Acronyms and term definitions’, page 5, “PCL (Paint Containing Lead)” definition replaced by, “Any paint or coating containing lead in excess of 0.009 percent by weight (1.0 mg/cm2 or 90 ppm). Lead Based Paint (LBP) is an interchangeable term with PCL.”

4 (Rev-0)

3.7.2.2 Change Std Spec 0000 paragraph 3.2.4.2.3(QP 1 inspector or tech rep duties) bullet, “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph

3.1.19 of SFLC Std Spec 6310 (Critical drying time requirements)).” to “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph 3.1.17 of SFLC Std Spec 6310 (Critical drying time requirements)).”

4. NOTES

4.1 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 6310 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.

5 (Rev-0)

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

VESSEL NAME HULL # WORK ITEM # WORK ITEM TITLE

LOCATION OF WORK (INCL. FRAME #’S) AREA (SQFT)

CHECKPOINT 1 – COATING SYSTEM COMPLIANCE

Ensure all coatings are in compliance with SFLC Std Spec 6310, Appendix C.

CHECKPOINT 2 - PAINT STORAGE

Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating mfgr.

CHECKPOINT 3 - AMBIENT CONDITIONS

Ensure surface and surrounding temperatures are each between 50 and 90°F for water-containing coatings, and 35 and 95°F for other coatings, unless otherwise specified by the coating manufacturer(s).

Ensure maximum relative humidity (RH) is as follows, from surface preparations through final curing of topcoat: 50% for tanks, voids, and vent plenum; and 85% for all other areas, unless otherwise specified by manufacturer(s).

Ensure surface temperature is at least 5°F above the dew point, unless otherwise specified by the coating mfgr.

CHECKPOINT 4 - PRE-SURFACE PREPARATION

Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down (maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.

Verify equipment setup, blast media, and surface preparation methods match designated test coupon.

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-11, SP-10, SP WJ-2…).

Verify surface anchor profile using ASTM D4417-Methods B or C against SFLC Std Spec 6310. Conduct profile readings at a minimum of 5 locations for the first 1000-sqft area, and 2 locations for each succeeding 1000-sqft area.

Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max. threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).

CHECKPOINT 6 - PRIMER COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Verify proper mixing and stand-in (induction) times.

Ensure no paint is applied when the temperature is expected to drop to freezing before the paint has dried.

Ensure surfaces are completely dry, unless otherwise allowed by the coating manufacturer(s).

Verify wet film thickness (WFT) at random, to prevent under or over application. Verify final DFT.

Brush out all runs, sags, drips, and puddles.

Perform visual inspection for holidays and other defects.

CHECKPOINT 7 – STRIPE COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

After primer coat (mist coat after inorganic zinc), brush-apply un-thinned coat of same primer paint over edges, weld seams, cut-outs, and areas of complex geometries @ 3-4 mils wet film thickness (WFT).

CHECKPOINT 8 – TOP COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

Verify proper mixing and stand-in (induction) times, as applicable.

Verify wet film thickness at random, to prevent under or over application.

Brush out all runs, sags, drips, and puddles.

CHECKPOINT 9 – FINAL INSPECTION

Verify final system dry film thickness. Conduct 5 sets of 3 readings for each of the first 3 100-sqft areas, followed by 5 sets of 3 readings for each succeeding 1000-sqft area.

Ensure that system cure is in accordance with manufacturer's recommendation for intended service.

Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure, to exhaust all solvent to the atmosphere and to prevent solvent entrapment.

For immersion coatings (including tank U/W body), record date and time of the following events:

Final coat application: _____/_____; Return to service or removal from environment controls: _____/_____

CHECKPOINT 10 – RECORD KEEPING

Complete, sign, and submit all provided QA Inspection Forms.

NAME OF QP-1/NACE INSPECTOR SIGNATURE CERT. # DATE / TIME

6 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.

DATE

TIME

ACTIVITY (SURFACE

PREPARATION, PRIMER COAT,

BARRIER COAT, TOP COAT,

ETC…)

LOCATION (FRAME &

DECK, RELATION TO

EQUIPMENT, ETC.)

TEMPERATURE % REL.

HUMID-

ITY

DEW

PT.

SURFACE AMBIENT ΔT

| DP -

SURFACE |

7 (Rev-0)

QA-3a - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-C)

SURFACE PREPARATION METHOD PROFILE ACHIEVED (MILS)

MIN MAX MEAN

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)

ABRASIVE MANUFACTURER: ABRASIVE SIEVE SIZE:

Place surface profile replica tapes in the spaces provided below, to serve as permanent QA record. Maintain a separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

MEAN MIL READING (IAW ASTM D4417-METHOD C) FOR ABOVE 15 READINGS:

8 (Rev-0)

QA-3b - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-B)

SURFACE PREPARATION METHOD PROFILE ACHIEVED (MILS)

MIN MAX MEAN

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area) Brush-blasting (non-metallic substrate)

ABRASIVE MANUFACTURER: ABRASIVE SIEVE SIZE:

Record measurements taken in the spaces provided below, to serve as permanent QA record. Maintain separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Mean Reading (mils)

Mean Reading (mils) IAW ASTM DD4417).

9 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

SOLUBLE SALT CONDUCTIVITY Measurements IAW SSPC-GUIDE 15.

DATE TEST LOCATIONS CONDUCTIVITY (MICROSIEMENS/CM)

10 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

COATING MFG PRODUCT NAME BATCH

INDUCTION

TIME

COATING SYSTEM SEQUENCE

(PRIMER/TOUCHUP/3RD COAT, ETC.)

Dry Film Thickness (DFT) Measurements IAW SSPC-PA 2.

SPOT 1 2 3 4 5 AVERAGE

VALUE

*BASE METAL READING

(BMR) Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.

LOCATION (FRAME REFERENCE):

SPOT 1 2 3 4 5 OVERALL AVG. DFT ADJUSTMENTS

1 AVG. BMR DEVIATION

3 BEFORE ADJUSTMENTS AFTER ADJUSTMENTS

AVG.

1 AVG. BMR DEVIATION

1 AVG. BMR DEVIATION

APPLICATION METHOD (AIRLESS, CONVENTIONAL SPRAY,

ROLLED)

AVERAGE DFT

11 (Rev-0)

24310_0416_FLT

REC_24310_FLT_75 WLR(‘F’ Class: Hulls 75500, 75501) (0708)

WORK ITEM 1: Propulsion Shafting; Remove, Inspect, and Reinstall

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to remove, inspect, and reinstall designated propeller tail shaft.

1.2 Government-furnished property.

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

Y **Propulsion Shaft NSN: 3040-01-510-2508 1 ea. $16,000.00

**New or refurbished equipment that the Government may provide for installation in place of existing equipment.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 75F WLR 243-001, Rev 3, Shafting Arrangement Coast Guard Drawing 75F WLR 243-002, Rev 6, Shaft Details

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph(s):

12 (Rev-0)

• 3.2.1 Initial shaft coupling alignment check

• 3.2.3 Inspections

• 3.5 Government’s right for changing out shaft(s)

3.1.2 Tech Rep.

Not Applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the below-listed:

• Deck plates.

• Rope guard.

• Fairwater.

3.2 Work to be accomplished. Using Coast Guard Drawings 75F WLR 243-001 and 75F WLR 243-002 as guidance, as applicable, the Contractor shall accomplish the following:

3.2.1 Initial shaft coupling alignment check. Prior to the vessel’s initial drydocking, perform the bore and face alignment between the reduction gear output flange and shaft coupling as follows and Submit A CIR:

• Angular (face-to-face) readings in 4 positions at 90° intervals;

• Parallel (coupling OD-to-coupling OD) readings in 12 positions at 30° intervals.

NOTE

The following methods for obtaining coupling/hub alignment measurements are acceptable:

1) Dial indicator to obtain total indicator run-out

2) Straight edge or feeler gage.

3.2.2 Removals.

CAUTION

Be aware historically couplings have been difficult to remove, often requiring added heat to loosen.

Ensure shaft is protected and supported at all bearing journals (minimum), at all times, until reinstallation.

When transporting/moving/lifting, ensure the shaft is supported at all times at a minimum of three locations along the shaft.

Provide proper support to the reduction gear shaft flanges to prevent sagging.

13 (Rev-0)

• Mark existing shaft position, and match-mark shaft coupling bolts to their respective holes, to facilitate reinstallation procedures.

• Remove the shaft and attached components (as applicable) to a suitable repair facility.

3.2.3 Inspections. Clean the shaft free of all marine growth and surface contaminants, and accomplish the following inspections, as applicable (Submit A CIR):

3.2.3.1 Visual inspections. Visually inspect the following components, as applicable, for excessive wear and other mechanical defects such as nicks, cracks, and corrosion, etc. Determine the extent of repairs required for each stern tube assembly, if any.

• Shaft surfaces.

• Bearings, bearing carriers, epoxy-resin chocking and associated fasteners (as applicable).

• All shaft and propeller-associated fasteners.

• Stern tube surfaces (including seal flange as applicable).

• Couplings.

• Stern tube/shaft sealing systems.

3.2.3.2 Complete the following measurements:

NOTE(S)

Before taking shaft runout readings, slowly spin the shaft on a lathe for approximately two hours to eliminate any sagging that may have occurred during handling and storage.

• Measure keys and keyways.

• Measure all bearing sleeve or journal diameters.

• Measure runouts for shaft taper, shaft straightness, and coupling end diameters.

• With the key in-place, fit the shaft coupling to the shaft in shop and check the contact percentage by bluing. If the contact is less than 80%, the Contractor shall grind and hand stone the coupling hub to achieve a minimum of 80 percent contact, and verify by bluing again. Make a small inscription on the shaft to mark the coupling hub location and use it as a reference in final assembly. Measure and record the coupling face and bore runouts.

3.2.3.3 Perform NDE of all bearing sleeves, shaft tapers, coupling bolts, keyways, and weld repaired surfaces in accordance with SFLC Std Spec 0740, Appendix C..

3.3 Reinstallation. The Contractor shall reinstall the propeller shaft to its original configuration and accomplish the following, using Coast Guard Drawings 75F WLR 243-001 and 75F WLR 243-002, as applicable.

3.3.1 Machine, grind, or hand-stone couplings, if necessary, to achieve an 80 percent contact. True couplings to shaft by cutting coupling faces and land area.

3.3.2 Renew all stainless steel self-locking nuts for packing glands.

3.3.3 Renew all packing materials.

14 (Rev-0)

3.4 Final shaft coupling alignment check. The Contractor shall accomplish the following:

3.4.1 When the vessel is waterborne, check angular (face gap) alignment. Ensure shaft is restrained from moving aft. Angular misalignment reading shall be obtained with the coupling the coupling flanges 1/8” to 3/16” apart (hub registers remain engaged) and recorded at the 12, 3, 6, and 9 O’clock positions. Use a feeler gauge to determine gaps at the four positions. Rotate both shafts 90 degree and take reading again.

Return the shaft to 12 o’clock and take the readings a third time. Compare results to initial readings (Pre-work) and submit a CFR. Generally for proper shaft alignment, each set of readings, the difference between readings at 12 and 6 O’clock and between 3 and 9 O’clock is kept within 0.005 inches.

3.4.2 When the vessel is waterborne, check parallel (rim) alignment. Parallel alignment checks will determines the centerline offsets between reduction gear and propulsion shafts. Parallel misalignment reading shall be obtained with the coupling flanges approximately 5/16” apart (coupling register is disengaged) and recorded at the 12, 3, 6, and 9 O’clock positions. Measurements may be taken with a dial indicator set-up, or if that is not available a rough check may be made with a straight edge and feeler gauge technique. Compare results to initial readings (Pre-work) and submit a CFR with the results (a) the amount one shaft is lower than the other (determined from vertical plane readings at 12 and 6 O’clock), and (b) the amount the propeller shaft is inboard or outboard of the reduction gear (determined from horizontal plane readings at 3 and 9 O’clock). Generally for proper shaft alignment, parallel misalignment is kept within 0.005 inches (if dial indicator was used this is 0.010” TIR).

3.5 Government’s right for changing out shaft(s). The Contractor shall be aware that the Government reserves the right to furnish a new shaft for installation in place of the existing shaft. If the Government exercises this right, the Contractor shall transport the spare shaft to a suitable inspection facility, and perform the inspections specified in paragraph 3.2.3 (Inspections) and Submit A CIR. The Contractor shall turn over the removed shaft to the Coast Guard PA as an MTI item.

3.6 Operational test – post repairs. After completion of work, the Contractor shall witness an operational test (by Coast Guard personnel) of the shafting system, for a minimum of 4 hours, to prove satisfactory operating condition. Submit a CFR.

4. NOTES

This section is not applicable to this work item.

15 (Rev-0)

24350_0814_FLT

REC_24350_FLT_75 WLR(‘F’ Class: Hulls 75500, 75501) [tender] (0309)

WORK ITEM 2: Steering Rudder: Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to remove, inspect, and reinstall the starboard steering rudder with government furnished rudder.

($/UNIT)

Y Steering Rudder NSN: 2040-01-503-0291 1 ea. 2,700.00

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 75F WLR 562-001, Rev 1, Rudder Arrangements Coast Guard Drawing 75F WLR 562-003, Rev 4, Steering Rudders & Stocks

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

OTHER REFERENCES

ASTM International (ASTM) D5363, 2008; Standard Specification for Anaerobic Single-

Component Adhesives (An) MIL-PRF-16173, Sep 2006, Corrosion Prevention Compound, Solvent Cut-Back, Cold-

Application MIL-S-45180, 1998; Sealing Compound, Gasket, Hydrocarbon Fluid and Water Resistant

16 (Rev-0)

3. REQUIREMENTS

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph:

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures- general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.3.1 Protective measures- rudder specific. Provide suitable covering to protect all exposed rudder and vessel components against contamination during the performance of the work specified herein. Ensure that rudder stock/shaft surfaces are supported in a minimum of two locations, at all times, until reinstallation.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.2 Removal. The Contractor shall remove the damaged starboard steering rudder.

3.3 Inspections. The Contractor shall clean all rudder components, and accomplish the below-specified inspections.

3.3.1 Visual. The Contractor shall clean and visually inspect all components, including but not limited to, rudder stock/shaft and blade surfaces, bearings, bearing housing, seals, and grease passages for signs of excessive wear and other mechanical defects such as nicks, cracks, and corrosion, as applicable.

3.4 Reassembly and reinstallation. Upon completion of all inspections and authorized repairs, the Contractor shall accomplish the following tasks:

3.4.1 Preservation of void internal surfaces. Preserve rudder internal surfaces, as follows:

• Fill all appendage interior surfaces with a rust preventive compound conforming to MIL-

PRF-16173, Class II, Grade 3, to coat all surfaces.

• Drain, collect, and dispose of remaining compound in accordance with all applicable Federal, state, and local regulations.

• Ensure that the coated surfaces are left exposed to the atmosphere for 24 hours to allow for adequate drying.

3.4.2 Reinstall the starboard steering rudder, using Coast Guard Drawings 75F WLR 562-001 and 75F WLR 562-003 as guidance, and accomplish the following:

17 (Rev-0)

3.4.3.1 Provide new body-bound bolts for the rudder blade; tac-weld the bolts and nuts to the blade and stock.

3.5 Alignment. Upon completion of reinstallation, the Contractor shall check the rudder alignment with the pilothouse rudder angle indicator. Ensure that alignment is adjusted to within plus or minus 1/2 degree.

NOTE

All equipment will be operated by CG personnel.

3.6 Operational test – post repairs. After completion of work, the Contractor shall thoroughly test, in the presence of the Coast Guard Inspector and demonstrate the rudder system to be in satisfactory operating condition. Conduct a test prior to coming out of drydock and after vessel is waterborne.

3.6.1 The Contractor shall ensure the rudders are aligned to mid ships before going back in the water. Test the steering and rudder system, prior to coming out of drydock, to ensure the rudders travel smoothly throughout the full range of travel without chattering or binding and at the required rate of train. The steering shall be operated in all modes of control . Compare post-repair results with the pre-repair results to detect any abnormalities. Submit a CFR.

3.6.2 The Contractor shall test the steering and rudder system, after the vessel is waterborne, to ensure the rudders travel smoothly throughout the full range of travel without chattering or binding and at the required rate of train. The steering shall be operated in all modes of control . Compare post-repair results with the pre-repair results to detect any abnormalities. Submit a CFR.

18 (Rev-0)

24500_1114_FLT

REC_24500_FLT_75F WLR (0415)

WORK ITEM 3: Propellers, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew the Port and Starboard propeller with government furnished propellers.

($/UNIT)

Y Propeller LH NSN: 2010-01-501-5465 1 ea. $15,000.00

Y Propeller RH NSN: 2010-01-501-5459 1 ea. $15,000.00

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 75F WLR 245-003, Rev 2, Propeller, Fairwater & Guard (6-blade) Coast Guard Drawing 75F WLR 562-001, Rev 1, Rudder Arrangements Coast Guard Drawing 75F WLR 562-003, Rev 4, Steering Rudders & Stocks

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller -

Manufacturing Tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50 m, Inclusive

MIL-PRF-16173, 2006, Corrosive Preventive Compound, Solvent Cutback, Cold Application

19 (Rev-0)

3. REQUIREMENTS

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph(s):

• 3.3.2. In-place Shaft Runout Readings-Port Tail Shaft

• 3.3.3 Initial shaft coupling alignment check

3.1.2 Tech Rep.

Not Applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

• Port Rudder

3.2 Work to be accomplished. The Contractor shall accomplish the following tasks for Port propeller, using Coast Guard Drawing 75F WLR 245-003, 75F WLR 562-003 and 75F WLR 562-001 as guidance as guidance.

3.2.1 Propeller removal.

3.2.1.1 Before removing Port and Starboard propellers or propeller nut, fit a shore from the floor of the dock to one propeller blade near the root, to prevent shock transmission to reduction gear, as necessary.

3.2.1.2 The Port and Starboard propellers cannot be removed without first removing the Port steering rudder blade.

3.2.1.3 Rudder Removal. In order to facilitate removal of the starboard propeller, the starboard steering rudder shall be removed at the exterior rudder palm flange. Rudder shall be reinstalled after reinstallation of propeller. Contractor shall renew all fasteners upon reinstallation of rudder with body bound bolts and fasteners using CG Drawings 75F WLR 562-001 and 75F WLR 562-003 as guidance. Contractor shall tac-weld the bolts and nuts to the blade and stock.

3.2.2 Propeller Removal. Remove the Port propeller. The Contractor shall turn over the removed propeller to the Coast Guard PA as a MTI item.

NOTE

If it becomes necessary to apply heat to facilitate propeller removal, ensure that the hub temperature never exceeds 500 degrees Fahrenheit; in addition, ensure that gland, packing ring, fill and vent plugs are removed, and the adjacent shafting and canvas under the blade edge guards are protected from flame impingement.

20 (Rev-0)

3.2.1.3 Protect propeller blade edges and blade roots with suitable covers, at all times until reinstallation, to prevent damage.

3.3 Inspection.

3.3.1 Strut and structure-Port and Starboard. Because the Starboard propeller was damaged by striking an object, visually inspect the strut for signs of damage. Visually inspect all nearby hull areas, Starboard propeller and rudders for obvious signs of damage, including bends, cuts, upset metal, scraped paint, etc.

Submit a CFR.

3.3.2. In-place Shaft Runout Readings-Port Tail Shaft. To ensure the shaft is not significantly bent (from propeller damage/impact) take runout readings in the vicinity of the shaft’s propeller tapered end. Affix a dial indicator to a permanent nearby structure and indicate perpendicularly onto shaft. Contractor may propose alternate techniques to obtain shaft runouts, to the Coast guard Inspector for approval. Rotate shaft and observe runouts. Submit a CIR.

3.3.3 Initial shaft coupling alignment check. Prior to the vessel’s initial drydocking, perform the bore and face alignment between the reduction gear output flange and shaft coupling as follows and Submit a CIR.

• Angular (face-to-face) readings in 4 positions at 90° intervals;

• Parallel (coupling OD-to-coupling OD) readings in 12 positions at 30° intervals.

NOTE

The following methods for obtaining coupling/hub alignment measurements are acceptable:

1) Dial indicator to obtain total indicator run-out

2) Straight edge or feeler gage.

3.4 Propeller hub fitting check. In the presence of the Coast Guard Inspector and with the key in place, check the fit of the propeller hub bore to the shaft taper by applying Prussian blue to the shaft taper.

3.4.1 Uniform fit. Obtain a uniform fit of 60 percent contact over the taper, with a slightly heavier fit on the larger end. Do not heat the shaft taper to compensate for a poor fit.

3.4.2 Propeller fit. If the fit is less than 60 percent, hand grind/stone the propeller hub bore to achieve the required fit.

WARNING

Do not machine the shaft taper.

3.4.2.3 Location inscription. When 60 percent fit has been obtained, make a small inscription on the shaft to mark the propeller location. Use this mark as a reference in final assembly.

3.4 Propeller Installation. The Contractor shall accomplish the following:

3.4.1 Cleaning. For the final assembly, the propeller bore and shaft taper surfaces shall be clean and free of bluing, lubricants, dirt, foreign particles, or any other substance, which would hinder moving the propeller along the taper. Install the propeller with dry metal-to-metal contact to obtain the maximum

21 (Rev-0) frictional force for torque transmission. Renew the rubber O-rings and packing before reassembly, if applicable.

3.4.2 Assembly. With the propeller installed on the taper in the same position as when fitted, install the propeller nut and drive up the propeller until it is advanced forward about 1/16" beyond the inscribed mark as specified in 3.2.4.3 (Location inscription). Lock the nut in place with an appropriate locking device.

3.4.2.1 Do not heat the propeller hub, to compensate for a poor fit on the shaft taper.

3.4.2.2 Do not machine the shaft taper to achieve the required fit.

3.4.2.3 Lock propeller nut in place with new stainless steel lock washer or monel cap screws.

NOTE

It is prohibited to use grease, oil, or other substances on the taper to help drive the propeller.

3.4.3 Void filling. When applicable, the Contractor shall fill all internal voids in the propeller hub and cap with rust preventive compound conforming to MIL-PRF-16173, Class II, Grade 3. Renew all brass plugs.

3.4.4 Government’s right for changing out a propeller. The Contractor shall be aware that the Government reserves the right to furnish a new propeller for installation in place of the existing propeller. If the Government exercises this right, the Contractor shall turn over the removed propeller to the Coast Guard PA as a MTI item.

4.1 Propeller details. Propeller details are as follows: 46" dia x 51" pitch 6-blade stainless steel.

22 (Rev-0)

86340_0316_FLT

REC_86340_FLT_75 WLR (‘F’ Class: Hulls 75500, 75501) (0417)

WORK ITEM 4: Drydock - Tender

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to drydock the vessel, undock the vessel, and perform various drydocking-related tasks.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 75F WLR 085-001, Rev A, Curves of Form Coast Guard Drawing 75F WLR 085-008, Rev 2, Lines Plan Coast Guard Drawing 75F WLR 085-012, Rev -, Docking Block Arrangement (‘F’ Class)

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2014, Drydocking

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

3.1.2 Tech Rep.

23 (Rev-0)

Not applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.2 Key personnel. The Contractor shall determine key personnel and require their presence during all drydocking phases.

3.3 Docking requirements. The Contractor shall perform drydock and undock in accordance with SFLC Std Spec 8634, using Coast Guard Drawings 75F WLR 085-001, 75F WLR 085-008, and 75F WLR 085- 012 for guidance.

3.4 Cutter conditions. The Contractor shall use the Full Load Condition, listed below for purposes of performing Pre-Award calculations as described in Appendix A (Requirements for Calculations) of SFLC Std Spec 8634.

• Displacement (LT SW): 176.25

• VCG (FT ABL): 8.396

• LCG (FT aft amidships): 0.803

• LCF (FT aft amidships): 3.688

• Trim (FT by stern): 0.411

• MT1” (LT-FT/Inch): 18.26

3.4.1 Cable, sling, or strap tension calculation. If the Contractor plans to use a vertical lift, crane, or travel/mobile lift to haul out the vessel, the Contractor shall submit the cable, sling, or strap tension calculation specified in Table A1 and paragraph A2.7.2.7 of SFLC Std Spec 8634 with the Pre-Award calculations, using the loading condition specified in paragraph 3.2.1.

3.4.2 Blocking. The Contractor shall facilitate docking the vessel in block position by arranging keel and side blocks and ensuring minimum block heights as shown on the vessel's docking plan.

24 (Rev-0)

TABLE 1 - BLOCKING

POS.

BLOCK HEIGHT ABOVE

DOCKING FACILITY DECK

STEEL

PLATE

SITUATION

AWARENESS

FIN

STABILIZERS ADDITIONAL

Minimum Rudder Removal

Propeller Removal

1 36" NA Additional horizontal clearance:

15'6"

NA NA NA A stern post at Frame 44/45 may be built after docking to support the overhang.

3.5 Pre-award calculations. The Contractor shall provide to the KO a set of pre-award calculations, as described in SFLC Std Spec 8634 Appendix A.

3.5.1 The Contractor shall provide vertical side/bilge block offsets for any side blocks placed in a location where vertical offsets are not already defined by the docking plan.

3.5.2 The Contractor shall submit an alternate blocking arrangement, as part of the pre-award calculation submission, to compensate for any changes from the docking plan.

NOTE

1. The USCG has established several approved alternate docking plans for each vessel-class, to facilitate complete access to the entire U/W body structure, for periodic comprehensive inspection and/or 100% preservation.

This inspection and preservation pattern and periodicity is a configuration management concern that is a vital requirement of the contract. Intention to deviate from these plans (fewer blocks, block spacing, additional blocks, etc) shall be identified on pre-award calculations (Paragraph 3.5.2); an alternate docking plan and mitigation strategy shall be provided to maintain preservation and inspection configuration.

2. Pre-award calculations may be deemed unsatisfactory - and may adversely affect contract award if they are submitted with the following detrimental factors:

a. No methods have been proposed that meet the requirements for the specified docking plan.

b. Proposed block shifting or fleeting risk-mitigating plan may result in delays in period of performance.

c. Proposed alternate docking plan violates USCG configuration management policies."

NOTE

The Coast Guard Underwater Hull Inspection Board (UWHIB) will recommend the extent of underwater body coating system preservation required based on the conditions found during the underwater hull survey.

25 (Rev-0)

3.6 Unplanned availability: Underwater body cleaning-removal of marine growth. Within four hours after the vessel has been docked, the Contractor shall start cleaning the entire underwater hull from the upper edge of the boot top down, including sea chest gratings, sea chest interiors, fairwaters, rope guards, rudder, shaft strut, z-drive, thruster tunnel, and zinc anodes, as applicable. The Contractor shall remove all marine growth, fouling, salt, and dirt from the underwater hull by High Pressure Fresh Water Wash, using a minimum pressure at the nozzle of 3,500 psi and maximum pressure of 7,000 psi. Complete the hull cleaning before marine growth hardens. Removal of gratings is not required.