Amendment P0003.pdf

SOLICITATION NO. 70Z08521QP4558300

UPDS USCGC WAESCHE (WMSL 751)

QUESTION: Work Item 15 Structures (Stack AFT Above 03 Level), Renew

Paragraph 3.2 "Work Location. The concerned work area is on the 03 Deck level from Frame 54 to 59. In the presence of the Coast Guard Inspector, the Contractor shall walk through the work area to visually inspect the work required. See the Coast Guard Drawing(s) above and the figure below for guidance and details."

3.3 Repairs.

3.3.1 CIWS Deck, 03 Weather Deck.

3.3.1.1 "Crop out and renew deformed stiffeners, that are tripped one (1) inch or more, forward and inboard of Air Supply Top Plate in accordance with Coast Guard SFLC Std Spec 0740 and Coast Guard

Drawing 750-WMSL 100-53."

3.3.2.1 "Crop out and renew centerline longitudinal bulkhead stiffeners that are tripped one (1) inch or more from the vertical stiffener at FR 56.5 to 57."

3.3.3.1 "In the presence of the Coast Guard Inspector, the Contractor shall walk through the work area prior to the start of work. Crop out and renew deformed 03 level bulkhead stiffeners that are tripped one

(1) inch or more from approximately FR 56 to 22 inch aft and CL to 32 inch outboard. Crop off and renew deformed vertical stiffener L-2(S) on transverse bulkhead 57.5."

3.3.4.1 Crop out and renew stiffeners, that are tripped one (1) inch or more, in the Exhaust and stackhouse in the following areas”

In paragraph 3.2 it states that the contractor is to conduct a walk-through visual inspection with the Coast Guard inspector to identify the work required.

In paragraphs 3.3.1.1, 3.3.2.1, 3.3.3.1, 3.3.4.1, it states contractor is to crop and renew deformed stiffeners that are tripped 1” or more….

Question:

Is it the intent of paragraphs 3.2 and 3.3.3.1 to identify the deformed stiffeners and submit a CFR, and in paragraph 3.3.1.1, 3.3.2.1,3.3.4.1 to crop and renew the deformed stiffeners identified in the CFR as a Change Request from paragraph 3.2/3.3.3.1?

RESPONSE: The Specification has been revised to the following pages.

ATTACHMENT 4 – REQUEST FOR CLARIFICATION

Unplanned Dockside Repairs of USCGC WAESCHE (WMSL 751)

Structures (Stack Aft Above 03 Level), Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew bulkhead stiffeners, coatings and insulation on and above the 03 Level deck.

1.2 Government-furnished property. None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 418A-WMSL-100-001, Rev -, General Arrangements

Coast Guard Drawing 418A-WMSL-801-001, Rev -, Booklet of General Plans

Coast Guard Drawing 750-WMSL 100-54, Rev C, Stack - FR 48 to FR 57 (ASC100443)

Coast Guard Drawing 750-WMSL-101-015, Rev -, Scantlings Plan (ASC101015)

Coast Guard Drawing 750-WMSL-635-001, Rev -, Thermal & Acoustic Insulation

(ASC635001)

Coast Guard Drawing 750-WMSL-635-002, Rev K, Insulation Arr & Details Thermal, Acoustic, & Fire (ASC635002)

Coast Guard Drawing 750-WMSL 801-3, Rev -, Booklet of General Plans Nsc 2 SRD

(ASC801001B)

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0740, Jan 2018, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, Requirements for Preservation of Ship Structures

OTHER REFERENCES

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface

Preparation Standard SSPC-SP 6/NACE No.3, 2004, Commercial Blast Cleaning

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. None.

3.1.2 Technical Representative. The Contractor shall provide an NDE operator/inspector qualified in accordance with ASNT No. SNT-TC-1A. The Contractor shall submit name/resume of this person to be submitted to COR before Arrival Conference.

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 notwithstanding in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.2 Work Location. The concerned work area is on the 03 Deck level from Frame 54 to 59. In the presence of the Coast Guard Inspector, the Contractor shall walk through the work area to visually inspect the work required. See the Coast Guard Drawing(s) above and the figure below for guidance and details.

NOTE

This Work Item may require Scaffolding. For bidding purposes, include the scaffolding price on the Work Item titled "Scaffolding, Provide."

3.3 Repairs.

3.3.1 CIWS Deck, 03 Weather Deck.

3.3.1.1 Crop out and renew deformed stiffeners, that are tripped one (1) inch or more, forward and inboard of Air Supply Top Plate in accordance with Coast Guard SFLC Std Spec 0740 and

Coast Guard Drawing 750-WMSL 100-53. See Table 1 for sizes and quantities.

TABLE 1, OVERHEAD STIFFENER RENEWAL

LOCATION DESCRIPTION LENGTH

CIWS Deck, 03 Weather Deck WT 4 X 5# 5’ 8”

FB 3 ½” X ¼” 4’

3.3.1.2 Renew J-Bar davit with new material. Replace sunshields with new material.

3.3.1.3 Touch-up preservation. In the presence of the Coast Guard Inspector, the Contractor shall walk through the work area to determine the preservation area. The Contractor shall prepare and coat all new and disturbed exterior and interior surfaces and the water tight hatch to match existing adjacent surfaces, in accordance with SFLC Std Spec 6310, Appendix A (Cutter and

Boat Exterior Painting Systems) and Appendix B (Cutter and Boat Interior Painting Systems), respectively, and as applicable. Abide by all touch-up requirements outlined in SFLC Std Spec

0000, Appendix A (Requirements for Preservation of Ship Structures) for the following locations.

Exterior of RWTH 03-61-2 (approximately four (4) square feet), The new J-Bar davit, approximately twelve (12) linear feet).

Coating for FPL-097 (ten (10) square feet), Firemain piping, CMWD, and Compressed Air piping (twenty (20) linear feet).

3.3.2 MPDE No. 1 Intake Filter Room, 03-54-1-Q

3.3.2.1 Crop out and renew centerline longitudinal bulkhead stiffeners that are tripped one (1) inch or more from the vertical stiffener at FR 56.5 to 57. See Table 2 for sizes and quantities.

TABLE 2, CENTERLINE LONGITUDINAL BULKHEAD STIFFENER RENEWAL

LOCATION DESCRIPTION LENGTH

Stack house FR 56.7 to 57 WT 6X7# 79.5”

3.3.2.2 In the presence of the Coast Guard Inspector, the Contractor shall inspect WTRTT scuttle

No. 03-54-1 for damaged and missing parts. Remove, scrap and renew the gasket on the scuttle and spindle nut of locking element. Replace self locking nuts and gasket with new material.

Overhaul scuttle. Submit a Condition Found Report inspection results and if additional repairs are required.

3.3.2.3 Touch-up preservation. The Contractor shall prepare and coat all new and disturbed exterior and interior surfaces, approximately 750 sq. ft., to match existing adjacent surfaces, in accordance with SFLC Std Spec 6310, Appendix A (Cutter and Boat Exterior Painting Systems) and Appendix B (Cutter and Boat Interior Painting Systems), respectively, and as applicable.

Abide by all touch-up requirements outlined in SFLC Std Spec 0000, Appendix A (Requirements for Preservation of Ship Structures).

3.3.2.4 Insulation. The Contractor shall furnish, install, and coat new insulation on the sloping bulkhead, house side and overhead in accordance with Coast Guard Drawings 750-WMSL 635-

001 and 750-WMSL 635-002.

3.3.3 MPDE No. 2 Intake Filter Room 03-54-2-Q.

3.3.3.1 In the presence of the Coast Guard Inspector, the Contractor shall walk through the work area prior to the start of work. Crop out and renew deformed 03 level bulkhead stiffeners that are tripped one (1) inch or more from approximately FR 56 to 22 inch aft and CL to 32 inch outboard. Crop off and renew deformed vertical stiffener L-2(S) on transverse bulkhead 57.5.

TABLE 3, VERTICAL BULKHEAD STIFFENER RENEWAL

LOCATION DESCRIPTION LENGTH

Stack house FR 56 to 22” aft WT 6X7# 79.5” Stack house CL to 32” outbd (stbd) I/cf W 8X10# 15’ L-2(S) Transverse BHD 57.5 WT 4x5# 15’

3.3.3.2 In the presence of the Coast Guard Inspector, the Contractor shall inspect WTRTT scuttle

No. 03-54-2 for damaged and missing parts. Remove, scrap and renew the gasket on the scuttle.

Submit a Condition Found Report inspection results and if additional repairs are required.

3.3.3.3 Touch-up preservation. The Contractor shall prepare and coat all new and disturbed exterior and interior surfaces, approximately 750 sq. ft., to match existing adjacent surfaces, in accordance with SFLC Std Spec 6310, Appendix A (Cutter and Boat Exterior Painting Systems) and Appendix B (Cutter and Boat Interior Painting Systems), respectively, and as applicable.

Abide by all touch-up requirements outlined in SFLC Std Spec 0000, Appendix A (Requirements for Preservation of Ship Structures).

3.3.3.4 Insulation. The Contractor shall furnish, install, and coat new insulation along the centerline longitudinal bulkhead, the 03 Level plating and 04 Level plating, approximately 350 square feet, in accordance with Coast Guard Drawings 750-WMSL 635-001 and 750-WMSL

635-002.

3.3.4 AMMR Exhaust 03-58-0-Q.

3.3.4.1 Crop out and renew deformed plate and stiffeners, that are tripped one (1) inch or more, in the Exhaust and stackhouse in the following areas (see Table 3 for sizes and quantities):

3.3.4.1.1 Deformed plate in TRANSV BHD FR 57.5 between SLOPING HSE side (PORT) and sloping HSE side (STBD).

.3.4.1.1.2 Deformed vertical stiffener L-2(P) on TRANSV BHD FR 57.5 about 49" above CIWS

Deck (03 level).

.3.4.1.1.3 Deformed plate in the TRANSV BHD FR 58.3 between SLOPING HOUSE SIDE

(PORT) and SLOPING HOUSE SIDE (STBD).

.3.4.1.1.4 Deformed vertical stiffeners on TRANSV BHD FR 58.3 were observed at L-1(S) and

L-2(S), up to 78" from CIWS DECK (03 lvl).

.3.4.1.1.5 Deformed plate was observed in fashion plate of sloping house side (port).

.3.4.1.1.6 Deformed plate in bottom plate at 62'-2 3/4 ABL FR 58.3 thru FR 59.1 between

SLOPING HSE SIDE (Port) and sloping hse side (STBD).

.3.4.1.1.7 Deformed fashion plate of sloping house side (stbd).

.3.4.1.1.8 Deformed vertical stiffener at FR 58 and HORIZ stiffener 67" 3/4 below top of stack were observed on sloping house side (stbd).

TABLE 3, AMMR EXHAUST 03-58-0-Q PLATE & STIFFENER RENEWAL

PARAGRAPH # DESCRIPTION LENGTH

3.3.4.1.1 & 3.3.4.1.3-3.3.4.1.8 7.65# PL (3/16” thk) 400 sq. ft.

3.3.4.1.2 WT 4 X 5# 7’6”

3.3.4.2 Crop out, scrap and renew damaged ventilation dampers in the space.

3.3.4.3 Touch-up preservation. The Contractor shall prepare and coat all new and disturbed exterior and interior surfaces to match existing adjacent surfaces, in accordance with SFLC Std

Spec 6310, Appendix A (Cutter and Boat Exterior Painting Systems) and Appendix B (Cutter and

Boat Interior Painting Systems), respectively, and as applicable. Abide by all touch-up requirements outlined in SFLC Std Spec 0000, Appendix A (Requirements for Preservation of

Ship Structures) for the following locations:

Renewed insulation/plating, approximately 400 square feet

CMWD and weather deck drain, approximately 20 linear ft.

3.3.4.4 Insulation. The Contractor shall furnish, install, and coat new insulation, approximately

400 square feet, in accordance with Coast Guard Drawings 750-WMSL 635-001 and 750-WMSL

635-002.

3.3.5 Accomplish all repairs in accordance with Coast Guard Drawing 750-WMSL 100-53 and

Coast Guard SFLC Std Spec 0740. Separate framing attached to plating at the framing to plating connection if applicable.

3.3.6 New stiffeners shall be of similar material and mechanical properties as the adjacent material.

3.3.7 Where possible, cut all edges along existing seams. Corners shall intersect plating seams at

90-degree angles. Corners that are not formed by designed plating seams shall have a minimum radius of, three inches, or one-eighth of the transverse dimension of the cut, whichever is greater.

3.3.8 Ensure that welding does not warp or cause any distortion to adjacent plating.

3.4 NDI. In the presence of the Coast Guard Inspector, the Contractor shall perform NDI of all stiffener renewal in accordance with SFLC Std Spec 0740, Appendix C. Submit a CFR.

FIGURE 1, WORK LOCATION

4. NOTES

This section is not applicable to this work item.

QUESTION: Work Item 35; AMMR and Intake filter Spaces, Clean Filter

Paragraph 3.1.7.1 directs contractor to characterize the contamination A portion of the Scope indicates that Contractor is to test and remove the fluids from the bilges of AMMR bilges.

found in the flammable stores locker for didposal.

Inasmuch as ship check on 1/29/2021 revealed negligible fluids in the bilges, may Contractor assume that testing of the fluids after removal to a waste containment tank as a result of pumping and washing the bilges will satisfy the testing requirements for the bilge waters??

RESPONSE:

Paragraph 3.1.7.1 shall have the following bullet pointed added:

• Qualifications required to pump bilge contents off of the ship

Paragraph 3.1.7.2 shall be edited to change “Flammable Stores Locker” to “AMMR Bilges”.

Paragraph 3.2 shall be revised to:

3.2 Operational test, initial. Prior to commencement of work, the Contractor shall witness Coast Guard personnel perform an initial operational test of all items or shipboard devices to be disturbed, used, repaired, or altered, to demonstrate existing operational condition. Submit a CFR.

Paragraph 3.6 shall be revised to:

Operational test-Post Repair. Upon completion of work, the Contractor shall witness Coast Guard personnel perform an operational test of all items or shipboard devices that were disturbed, used, repaired, or altered, to demonstrate operational condition. Submit a CFR.

The first instance of Paragraph 3.3.2 shall be renumbered to 3.3.1.

Paragraph 3.3.3 shall be renumbered to 3.3.2 The second instance of Paragraph 3.3.2 shall be renumbered to 3.3.3.

The specification shall be revised to include Paragraph 3.3.4:

3.3.4 The Contractor shall ensure that all cleaning materials used are either compatible with the contents of the bilge and tank top, or those cleaning materials that are not compatible with the contents of the bilge and tank top are kept out of contact.

The KTR may test the fluids while still in the bilge or after removal to a waste containment tank, however, the KTR shall at all times be in compliance with the Environmental Management Plan referenced in Standard Specification 0000, B2.

QUESTION: Work Item 23; Main Propulsion Diesel Engine Intake and Exhaust, Inspect and Repair

Paragraph 3.3 directs the KTR to remove ALL damaged insulation from the intake and exhaust systems for the engines listed in Table 1.

Paragraph 3.6 then directs the KTR to renew the intake and exhaust system lagging for the engines listed in Table 1 in accordance with Coast Guard Drawing(s) 750-WMSL-508-001.

Will the material and labor required to complete paragraphs 3.6 be a contract modification based off the amount insulation repairs identified and documented within Work Item D-07 and upon acceptance of KTRs’ CIR?

Do the KTR’s quote all materials listed within Coast Guard Drawing 750-WMSL-508-001 for all locations listed in Table 1?

For estimating purposes, the KTR will require the square footages of insulation requiring repairs and painting IAW paragraphs 3.5 & 3.7.

Per the Governments response of question written against Work Item- D-07 in Amendment P002, the KTR is requesting additional information.

Please review and advise.

RESPONSE:

Paragraph 3.6 shall be revised to:

3.6 Insulation renewal. The Contractor shall renew all damaged intake and exhaust system lagging for the engines listed in Table 1 in accordance with Coast Guard Drawing(s) 750-WMSL-508-001 up to 2,500 square feet. Any renewal beyond this amount shall be handled via CFR and change request process.

Previously, the areas listed in table 1 were also listed in table 1 of D-07. Per the Governments response of question written against Work Item- D-07 in Amendment P002, these areas have been removed from D-

07. The contractor shall use the revised Paragraph 3.6 for the estimation of materials and labor.

There shall be a new paragraph insertion between 3.2 and 3.3:

Inspection. The Contractor shall inspect the insulation for the machinery exhaust stacks listed in Table 1.

Inspect for any signs of damage and excess soot or debris build up that would be a sign of a potential exhaust leak. Submit a CIR with inspection results.

Paragraph 3.1.1 shall be revised to reflect the CIR required per the new paragraph.

QUESTION: Work Item 28; Ventilation Ducting, Repair

Paragraph 3.5 directs the KTR to remove ALL insulation on the ventilation ducts listed in Table 1. after removal of the damaged insulation, the Contractor shall clean and inspect the ventilation duct surfaces and submit a CFR.

Paragraph 3.8 then directs the KTR shall renew ALL the insulation material for the ventilation ducts listed in Table 1 in accordance Coast Guard Drawing 750-WMSL-509-001.

Do the KTR’s quote all materials listed within Coast Guard Drawing 750-WMSL-508-001 for all locations only listed in Table 1, though the shipboard damage was contained within the AMMR Uptake?

For estimating purposes, the KTR will require the square footages of insulation requiring repairs IAW paragraphs 3.5 & 3.8.

Please review and advise.

RESPONSE:

Paragraph 3.5 shall be revised to:

3.5 Insulation removal. The Contractor shall remove all insulation on the ventilation ducts listed in Table

1. After removal of the insulation, the Contractor shall clean and inspect the ventilation duct surfaces and submit a CFR.

The KTR shall use the locations in table 1 to prepare a quote.

The KTR shall use the revised paragraph 3.5 and existing paragraph 3.8 for estimation of square footage.