Q&A_dated_22_Nov_17.pdf

Sol 70Z08018Q93000800

Vendor Questions &Government Answers:

Sol. 70Z08018QP3000800 Dated 11/22/17

1. Vendor Question: Work Item 13- Cardan Shaft(s), Renew; Paragraph 3.5 calls for renewal of the Cardan Shaft Seal when renewing the Cardan Shaft.

Work Item 14- Cardan Shaft Seal, Renew calls for renewal of Cardan Shaft Seal.

Is the intent to renew Cardan shaft and seal on one shaft and renew just the seal on the other shaft?

USCG Answer: Inadvertently included Para 3.5 in work item 14. Removed; see Specification Rev-1 dated 14 Nov 17.

2. Vendor Question: Work Item 4: Bulkhead Penetrations, Frame 5, Inspect calls out to ‘…renew all r/w system piping, adapter, and fittings.’

Is the intent to renew the entire system as shown in detail 5-C/4 DWG 505-20 or just the system piping and fittings that penetrate bulkhead 5 as shown in detail 4-G/4?

USCG Answer: Intention is to renew the fittings that penetrate bulkhead 5.

3. WORK ITEM 3: Hull Plating (U/W Body), Inspect - Is 100%QP-1 or NAC Inspector really necessary?

USCG Answer: Yes.

4. WORK ITEM 4: Bulkhead Penetrations, Frame 5, Inspect - 3.4 Pipe penetration repairs The Contractor shall renew all r/w piping, adapters, & fittings. Par 3.4, are we just renewing all parts that are attached to the BLKHD-5 penetrations?

USCG Answer: The Contactor is required to renew only the blkhd 5 salt water pipe penetration assemblies which are the port and stbd r/g cooler supply and return piping, fittings, and adapters.

5. WORK ITEM 4: Bulkhead Penetrations, Frame 5, Inspect - Par 3.5, can the sound tiles be reused on the engine room side?

USCG Answer: The CN-38 tiles are reusable. If the tiles are found during the removal to be damaged or not reusable then a Condition Found Report / Change Request will be submitted for the renewal of the CN-38 tiles.

6. WORK ITEM 5: Rub Rail - There is no scope of work about installing the rub rails as shown on BP#47B MLB 611-020 Rev H sheet 3 of 3 items 8 & 9. Wanted to check to see if we are still sandblasting hull surfaces, inspecting them, applying two coats of the epoxy paint, applying a full coat of 5200 on the hull surface and utilizing the 4200 on the seams?

USCG Answer: The Contractor is required to apply sealant to the top and bottom edges as well as the sealing surfaces shown in the drawing MLB 611-020. The CG is requiring the full coat installation of sealant between the rub rail and hull surface.

3.5.1 The Contractor shall apply sealant to the top and bottom of each renewed rub rail in accordance with CG Drawing 47B-MLB 611-020.

7. WORK ITEM 8: Tanks (MP Fuel Service), Clean and Inspect - 4.2 Tank content restoration. The Ship’s force will procure new fluids and refill all tanks at the appropriate time.

Is this incorrect, since the contractor is renewing the fuel under D-23?

USCG Answer: See changes made in Specification Rev-2, dated 17 Nov 17.

8. WORK ITEM 11: Main Diesel Engine, Remove and Install - Are we doing both the P&S engines, or just one side?

USCG Answer: Remove and Install both port & stbd MDEs.

9. WORK ITEM 12: Main Diesel Engine, Align - Are we doing both the P&S engines and Cardan Shafts, or just one side?

USCG Answer: Align both port & stbd.

10. WORK ITEM 13: Cardan Shaft(s), Renew -Are we doing both the P&S Cardan Shafts, or just one side?

USCG Answer: See Specification Rev 1, dated 14 Nov 17.

11. WORK ITEM 14: Cardan Shaft Seal, Renew- Are we doing both the P&S Cardan Shaft Seals, or just one side?

USCG Answer: See Specification Rev 1, dated 14 Nov 17.

12. WORK ITEM: Standard Hoses, Renew

Are we to supply new OEM hoses numbered 053-B, C, &D?

053-A

STEERING SYSTEM HARD LINE TO

RESERVOIR RETURN

CLAMPS

N/A

053-B

STEERING SYSTEM

RAM BLOCK TO

STBD

RAM FITTING 104

OEM

HM226

2/104

053-C

RAM BLOCK TO CEN

AFT RAM FITTING

1/435

053-D

RAM BLOCK TO

PORT

RAM FITTING 335

1/335

076 R/W SYSTEM PORT

ENG

BLKD#5 TO SHAFT

SEAL

025 R/W SYSTEM STBD

ENG

SHAFT SEAL SUPPLY

HOSE

Just needed to know about these hoses and the determination of the N/A. Are these hoses Non- Applicable, which means they are not part of the hoses to be renewed? Especially since the OEM hoses listed comes out of the United Kingdom?

If we are supplying these hoses does the boat have the new cylinder installed or the old one, they are different hose for each cylinder that has to come from the UK?

USCG Answer: CTR to supply hoses 053-B, 053-C & D (lengths are listed in the description which is why the N/A appears under "hose length in inches" block.

13. WORK ITEM 21: Sea Strainers - Duplex (All Sizes), Overhaul - 3.3 Reassemble. After completion and acceptance by the Coast Guard Inspector, reassemble all strainers. Renew all hardware with nickel-copper alloy (Monel) fasteners. Are we to renew fasteners with in kind material?

USCG Answer: Yes

14. WORK ITEM 21: Sea Strainers - Duplex (All Sizes), Overhaul - 3.1.5 Cofferdam repairs. The Contractor shall fabricate and install a cofferdam in accordance with UWSH S0600-AA-PRO-160, and as follows: I believe this is a copy and paste error?

USCG Answer: See changes ion Specification Rev-2, dated 17 Nov 17.

15. WORK ITEM 21: Sea Strainers - Duplex (All Sizes), Overhaul: 3.8 Surface preservation, 100% interior. The Contractor shall perform 100% preservation in accordance with SFLC Std Spec 6310, Appendix B (Cutter and Boat Interior Painting Systems) on the following interior surfaces: These are bronze strainers and we have never painted these surfaces.

Looks like Cutter specs.

USCG Answer: See changes ion Specification Rev-2, dated 17 Nov 17.

16. WORK ITEM 22: Sea Strainers - Simplex (All Sizes), Clean and Inspect

3.2.3 Reassemble. After completion and acceptance by the Coast Guard Inspector, reassemble all strainers. Renew all hardware with nickel-copper alloy (Monel) fasteners? Are we to renew fasteners with in-kind material?

17. WORK ITEM 27: U/W Body, Preserve (100%) - WHEN BIDDING THIS SPEC, CAN

WE BID IT USING THE FACT IN THE GENERAL REQUIREMENTS ABOUT THE

DEFINITION OF “CRITICAL-COATED SURFACES”, WHICH I HAVE INTERPRETING

THROUGH THE GENERAL REQUIREMENTS DEFINITION AS NOT CRITICAL DUE TO

THE FACT THE STATION HAS IT’S OWN HAULOUT AND CAN INSPECT AT ANY

TIME.

IS IT POSSIBLE FOR THIS CONTRACT, TO UTILIZE THE PE OR THE USCG PERSONNEL

TO WITNESS THE INSPECTIONS OR TO UTILIZE THE SHERWIN WILLIAMS TECH REP

NACE LEVEL 3 INSPECTOR?

USCG Answer: Manufacturer's representative is acceptable as long as they provide NACE III certification.

18. WORK ITEM 34: Bilge Preservation, Auxiliary Space - If I am not mistaken the TCTO for this calls out for the surface prep to be mechanically cleaned and apply two coats of epoxy IAW the Coatings & Color Manual, as we have been doing under the Sea Valve Items from day one of all the 47MLB contracts in the past. Question: Do you seriously want to sand blast the interior of the AUX space with all of the electrical in it, plus contaminating the Survivors Compartment?

USCG Answer: See changes ion Specification Rev-2, dated 17 Nov 17.