A00001-Attachment 1-RFC 1-27 SEQUIOA.pdf

Attachment 4

REQUEST FOR CLARIFICATION

(Copy as Needed)

SUBMIT REQUESTS NO LATER THAN MONDAY, DEC 14, 2020 @ 1:00 PM PST

CUTTER & HULL NUMBER: USCGC SEQUOIA (WLB 215)

USCG RFQ Number: 70Z085-21-Q-P4504700

QUESTION NO: 1 OF 1

OFFEROR’S NAME:

SUBMITTAL DATE: DECEMBER 14, 2020

SOLICITATION SECTION NO

AND/OR PAGE NO:

PARAGRAPH NO:

DEFINITE/OPTION ITEM NO: 90 PARAGRAPH NO: TABLE 1

TITLE (DESCRIPTION):

Decks – Exterior, Preserve (“Non-Skid Broadcast Grit” System)

QUESTION:

The referenced table expresses two (2 ) ambiguities:

1) It references the 02 Deck, but describes decks on both the 01 and 02 Deck levels

2) The specification indicates the “APPROXIMATE SURFACE AREA (SQ FT) -1400” when the total surface area of the listed decks total approximately 4150 square feet.

a. Forecastle Deck (01 Deck): 1300 sq ft (approx.)

b. Boat Deck (02 Deck): 1000 sq ft (approx.)

c. Air Castles (01 Deck): 900 sq ft(approx.)

d. Fantail (01 Deck): 950 sq ft(approx.)

Total: 4150 sq ft (approx.)

Which deck surfaces and how many square feet of deck is to be preserved?

Approximately 1400 sqft of deck will be preserved. COR will instruct vendor when on site which areas are priority to be completed for decking. If additional deck is to be preserved, a Change Request can be processed.

SUBMITTAL DATE: December 14, 2020

Combined Synopsis PARAGRAPH NO:

Contract Period of Performance

DEFINITE/OPTION ITEM NO: PARAGRAPH NO:

Contract Period of Performance

Could the USCG revise the beginning of the Period of Performance to 6FEB2021 and extend the completion date to

08MAY2021? The contractor believes this to be and appropriate Period of Performance for a project of this scope.

Due to CG restrictions and planning processes, POP extension is not possible. If, upon commencement of work, it is deemed necessary to extend POP, a CFR and Change Request can be submitted for CG review.

OFFEROR’S NAME: LAKE UNION DRYDOCK COMPANY

PARAGRAPH NO:

DEFINITE/OPTION ITEM NO: 80 PARAGRAPH NO:

Reefer Piping, Renew

Could the USCG provide photographs of the reefer piping intended to be replaced and highlight the specific sections to be replaced?

POC for photos is Robert Quichocho. Robert.B.Quichocho@uscg.mil

PARAGRAPH NO:

DEFINITE/OPTION ITEM NO: 74 PARAGRAPH NO: 3.2.4

Watertight Enclosures, Condition Assess

What form of testing, other than hose testing, test does the USCG prefer for interior water tight closures?

Visual and Chalk testing.

QUESTION NO: 023 OF

Page 226-228 PARAGRAPH NO: 3.2, Table 1, Task 3

DEFINITE/OPTION ITEM NO: D-050 PARAGRAPH NO:

Warping Capstan, Inspect and Service

1. In Work Item 50; Warping Capstan, Inspect and Service, paragraph 3.2, Table 1, Task 3, it states to only service and inspect, but it states to open gearing and gear reducers under SFLC Std Spec 5000 D2.4. Does the Coast Guard only want an inspection or disassemble and inspect for repairs?

CG wants a service of gear reducer. Open gearing and gear reducers in order to inspect.

QUESTION NO: 022 OF

SUBMITTAL DATE:

Page 112 PARAGRAPH NO: 3.5 and 3.5.1

DEFINITE/OPTION ITEM NO: D-025 PARAGRAPH NO:

Controllable Pitch Propeller, System Maintenance

In paragraph 3.5, it calls out for a full flush by SFLC Std Spec 5000 of the entire CPP hydraulic system which normally is not done on this system.

In paragraph 3.5.1, it calls out to do a flush of the CPP system per 6-2.1 of the CG Tech Pub 3524, Section 245 which is normally done on this system.

Will the Coast Guard only require the contractor to do the flush as per paragraph 3.5.1, per 6-2.1 of the CG Tech Pub 3524, Section 245?

Correct. The Contractor shall flush CPP system per procedure 6-2.1 “Flushing the CPP System” of CG Tech Pub 3524, Section 245.

QUESTION NO: 021 OF

Page 184-187 PARAGRAPH NO: ALL

DEFINITE/OPTION ITEM NO: O-42 PARAGRAPH NO:

Rudder Bearings, Renewal

1. In Work Item 42: Rudder Bearings, Renewal. In paragraph 3.2.3, it states to abrasive blast the rudder lower bearing housing and its associated rudder tube and gland housing. Is the pintle bearing housing to also be included in the abrasive blast?

Yes.

2. In paragraph 3.2.4, it states to prepare and paint the ID’s of the rudder stock bearing housing and rudder tube. Is the pintle bearing housing ID also to be painted?

Yes.

QUESTION NO: 019 OF

Page 160-162 PARAGRAPH NO: 3.4

DEFINITE/OPTION ITEM NO: D-035 PARAGRAPH NO:

Sea Strainers – Simplex (All Sizes), Clean and Inspect

1. In Work Item 35: Sea Strainers – Simplex (All Sizes), Clean and Inspect. In paragraph 3.4, it states the

Government reserves its right to replace existing strainers with GFE strainers. Since strainers are to be serviced in place, are we correct in understanding that removal and replacement of an existing strainer with a new GFE strainer would be the subject of a change order?

Correct. If renewal is deemed necessary a change request will be processed.

QUESTION NO: 018 OF

Page 154-156 PARAGRAPH NO: ALL

DEFINITE/OPTION ITEM NO: O-033 PARAGRAPH NO:

Sea Strainers (All Sizes), Renew

1. In Work Item 33: Sea Strainers (All Sizes), Renew, can the Coast Guard supply the contractors with photos of each of the sea strainers?

POC for this information is Robert Quichocho. Robert.B.Quichocho@uscg.mil

2. Can the Coast Guard supply the Contractor model numbers of each of the sea strainers listed?

POC for this information is Robert Quichocho. Robert.B.Quichocho@uscg.mil

3. Can the Coast Guard tell the contractor what material the sea strainers are made from (bronze, cast steel, stainless steel)?

POC for this information is Robert Quichocho. Robert.B.Quichocho@uscg.mil

4. Are all these strainers flanged or are they threaded?

All should be flanged.

5. Can the Coast Guard confirm which strainers are flanged and threaded?

All strainers should be flanged.

QUESTION NO: 017 OF

Page 126-130 PARAGRAPH NO: ALL

DEFINITE/OPTION ITEM NO: D-028 PARAGRAPH NO:

Heat Exchangers; Clean, Inspect and Hydro

1. In Work Item 28: heat Exchangers: Clean, Inspect and Hydro, in paragraph 1.1, Table 1, it states to clean, inspect and hydro (2) two SSDG Jacket Water Heat exchangers. Are these (2) two heat exchangers on the same SSDG or is the contractor to clean, inspect and hydro (1) one heat exchanger from each of (2) two SSDG’s?

1 exchanger on each SSDG.

2. Can the Coast Guard supply photos of each Heat Exchanger to be worked on?

POC for this information is Robert Quichocho. Robert.B.Quichocho@uscg.mil

3. Can the Coast Guard supply the contractor information on each of the heat exchangers with data information off the label plates (Brand name, model no., serial no., type – shell and tube or plate)?

4. Can the Coast Guard supply the contractor with sizes of each of the heat exchangers (Length, width, height, diameter)?

5. In paragraph 4.2 it states for the contractor to furnish parts for an Alpha Laval plate type heat exchanger. Could the Coast Guard tell us which heat exchanger this is?

CG believes this heat exchanger is no longer part of this specification. There is not an Alpha Laval plate type heat exchanger in the list provided. Please ignore this information.

QUESTION NO: 016 OF

Page 60-63 PARAGRAPH NO: 1.2 and Task 4

DEFINITE/OPTION ITEM NO: D-016 PARAGRAPH NO:

Hydraulically Operated Cargo Hatch, Inspect and Service

1. In Work Item 16: Hydraulically Operated Cargo Hatch, Inspect and Service, it states in paragraph

1.2 Government-furnished property, none. Normally the Coast Guard furnishes the (2) two

Cargo Hatch gaskets as GFP. Will the Coast Guard furnish the (2) two Cargo Hatch Gaskets as

GFP?

It is not the CG’s intention to provide Hatch Gaskets as GFP.

2. Task 4 only has the Hydraulic Hatch Lift Cylinder as Service and Inspect. Will it be a change order to disassemble and repair the Lift Cylinder if needed after inspection?

That is correct.

QUESTION NO: 015 OF

Page 275-278 PARAGRAPH NO: 4.1

DEFINITE/OPTION ITEM NO: D-063 PARAGRAPH NO:

Superstructure, Preserve 100%

1. In Work Item 63: Superstructure, Preserve 100%, paragraph 4.1, Can the Coast Guard provide the referenced sketch that shows surfaces that are to be preserved?

The referenced sketch is unavailable. Superstructure area is all vertical and horizontal surfaces, excluding decks, above the main working deck.

QUESTION NO: 014 OF

272-274 PARAGRAPH NO: 4.1

DEFINITE/OPTION ITEM NO: D-062 PARAGRAPH NO:

Hull Plating Freeboard (Buoy Port Areas) Preserve

1. In Work Item 62: Hull Plating Freeboard (Buoy Port Areas), Preserve, in paragraph 4.1 Definition of the Buoy Port, it states that the Buoy Port Areas are defined as freeboard surfaces between

Frames 30 and 48, port and starboard, from the deck level down to the top of the boot-topping;

and all inboard surfaces of the gunwale. Does all inboard surfaces of the gunwale mean port and starboard surfaces between frames 30 and 48 or the entire length of the gunwale in the buoy deck area port and starboard?

Inboard surfaces from frame 30 to 48 on port and starboard gunwales. These areas are shown on Coast Guard Drawing 225B WLB 601-002.

QUESTION NO: 013 OF

Page 215- 218 PARAGRAPH NO: ALL

DEFINITE/OPTION ITEM NO: D-048 PARAGRAPH NO:

Anchor Windlass, Inspect and Service

1. In Work Item 48: Anchor Windlass, Inspect and Service, in paragraph 1.2 Government furnished property, it states none, but in paragraph 3.3, Table 2, it requires to renew one hydraulic motor, one directional control valve assembly, one main shaft, and all hoses. Would the Coast Guard furnish any or all of these items as GFP?

CG does not plan to provide these items as GFP.

2. Does the Coast guard know which side (port or Starboard anchor windlass) would need a new hydraulic motor, a new directional control valve, a new main shaft and new hoses?

COR and CG Inspector will be able to provide this information upon arrival at DD facility. Both will need new hoses.

3. In paragraph 3.2, Table 1, Task 3, 5, 6, and 8, it tells the contractor to only service and inspect and not disassemble and inspect. Is it the intension of the Coast Guard to only Service and

Inspect these Tasks and any disassembly to do disassembly and inspections and repairs shall be a change order?

CG intention is for contractor to service and inspect these assemblies. If upon inspection disassembly is deemed necessary, a Change Request will be routed.

QUESTION NO: 012 OF

Page 149-153 PARAGRAPH NO: 3.7.2

DEFINITE/OPTION ITEM NO: D-032 PARAGRAPH NO:

Sea Valves and Waster Pieces, Overhaul Or Renew

1. In Work Item 32: Sea Valves and Waster Pieces, Overhaul Or Renew, it states in paragraph

3.7.2 to visually inspect all waster pieces associated with the valves specified for overhaul and/or renewal listed in paragraph 1.1 (Intent), as applicable. Can the Coast Guard tell the contractor which valves have waster pieces?

Specific valves and waster pieces cannot be identified prior to the award of this contract. For the purposes of bidding, see below.

Evaluate the percentage of remaining material for each waster piece and submit a CFR.

Renewal of waster pieces may be the subject of a CR.

QUESTION NO: 011 OF

Page 78 PARAGRAPH NO: 3.22.6.2

DEFINITE/OPTION ITEM NO: D-017 PARAGRAPH NO:

Propulsion Shafting; Remove, Inspect, and Reinstall

1. In Work Item 17: Propulsion Shafting, Remove, Inspect, and Reinstall, it states in paragraph

3.22.6.2 in “NOTE” that the Coast Guard reserves the right to substitute a Government

Furnished bearing cartridge (includes matched set of races and roller assemblies) should the existing be unsuitable for continued use. Would this be a change order or does the contractor include costs in the bid to uncrate and clean the bearing cartridge assembly for installation?

CFR will be submitted deeming “unsuitable for use”. Change request will have to be submitted to include costs and order part from CG warehouse.

QUESTION NO: 010 OF

Page 75 PARAGRAPH NO: 3.18

DEFINITE/OPTION ITEM NO: D-017 PARAGRAPH NO:

Propulsion Shafting, Remove, Inspect, and Reinstall

1. In Work Item 17: Propulsion Shafting, Remove, Inspect, and Reinstall, it states in paragraph

3.18 that the Government reserves the right to replace the original shaft with a replacement shaft. If the USCG elects to replace the existing shaft with a new GFE replacement, will the government confirm that uncrating the new shaft, additional inspections and crating the original shaft (all additional work) will be the subject of a change order.

If new shaft is deemed necessary, CFR and Change Request will be routed prior to final determination. This is where discussions on additional work can take place.

QUESTION NO: 009 OF

Page 48-50 and 51-52 PARAGRAPH NO: 1.1 and 3.3, Table 1

DEFINITE/OPTION ITEM NO: D-012, O-013 PARAGRAPH NO:

TITLE (DESCRIPTION):

Voids (non-Accessible), Leak Test Voids (Non-Accessible), Internal Surfaces, Preserve

1. In Work Item 12: Voids (Non-Accessible), Leak Test and in Work Item 13: (Non-Accessible), Internal Surfaces, Preserve, it states in Table 1, Rudder Stocks, Aft, CL. Is the Coast Guard referring to the actual rudder stock or is there a rudder stock void that surrounds the rudder trunk where the stock goes through?

There is a void that cannot be accessed close to the rudder stock.

2. Does the Coast Guard know the capacity of this void?

Capacity is unknown by CG but approximates 100% would be 25 gallons.

QUESTION NO: 008 OF

Page 10-13 PARAGRAPH NO: ALL

DEFINITE/OPTION ITEM NO: D-001 PARAGRAPH NO:

Hull Plating (side scan), Ultrasonic Testing

1. In Work Item 1: Hull Plating (Side Scan), Please confirm that to perform this item, item 3 must be activated as well.

Confirmed.

QUESTION NO: 007 OF

Page xix and 224 PARAGRAPH NO: 4.1

DEFINITE/OPTION ITEM NO: D-049 PARAGRAPH NO:

Anchor Chain(s) and Ground Tackle, Inspect and Repair

1. In Work Item 49: Anchor Chain(s) and Ground Tackle, Inspect and Repair, in paragraph 4.1, it states the chain is 1 ¼ inch Stud link and on page xix – Principal Characteristics it states the chains are 1 3/8 inch die lock chain. What type and size of anchor chain does the Sequoia have?

Please review the standard specifications below if determination is still necessary. Also, an ABS approved list of chain manufacturers may be found at the following website:

http://ww2.eagle.org/en/rules-and-resources/approved-manufacturers-and-products.html

Federal Specification (Fed Spec) RR-C-271, Rev E, Mar 2016, Chains and Attachments, Carbon and Alloy Steel

225B WLB 581-001

http://ww2.eagle.org/en/rules-and-resources/approved-manufacturers-and-products.html

QUESTION NO: 006 OF

SUBMITTAL DATE: DECEMBER 14,2020

237-247 PARAGRAPH NO: ALL

DEFINITE/OPTION ITEM NO: D-053 PARAGRAPH NO:

Buoy Crane, Appleton EB4806040, Inspect and Service

1. In Work Item 53: Buoy Crane, Appleton EB4806040, Inspect and Service, is it the intension of the Coast Guard to have the contractor perform in place cleaning, inspection and lubricating of the swing bearing in Table 1, Task 28?

No, if vendor wants to conduct work at own workshop, that is permitted.

2. Is it the intension of the Coast Guard to blast and paint 100% of the pedestal, turret, and boom assembly as stated in paragraph 3.2, Table 1, Task 2 or is the contractor to do a partially preserve to these surfaces as stated in Task 23?

CG intention is to preserve crane 100% due to harsh working environment and lack of proximity to vendors capable of conducting this work.

QUESTION NO: 005 OF

Page 232-236 PARAGRAPH NO: ALL

DEFINITE/OPTION ITEM NO: D-052 PARAGRAPH NO:

Twin Pivot Arm Davit, Inspect and Service

1. In Work Item 52: Twin Pivot Arm Davit, Inspect and Service, could the Coast Guard list what parts are in each of the six kits in paragraph 1.2 Government-furnished property that are to be supplied so the contractor knows exactly what is to be replaced?

List should be able to be found through listed Part Number and Welin Lambie.

2. Is the contractor to replace the hydraulic oil?

Yes.

3. It is very difficult to do a full preservation of the entire davit and its foundation with the davit assembled. Is it the intension of the Coast Guard to remove and disassemble the davit to blast and paint 100% of the davit and foundations under paragraph 3.2, Table 1, Task 9?

It is the intention of the CG to have the davit preserved to a standard that is acceptable for harsh sea water environments.

4. In paragraph 3.2, Table 1, Tasks 3, 4, 5, 6, 7, and 8 it tells the contractor to Service and Inspect on these Tasks which has little to do with disassembly of components other than inspection covers and inspecting components. Will it be a change order to disassemble components for more thorough inspections and repairs?

Yes, if more thorough inspections or repairs are necessary, CFR required will notate these recommendations for CG to approve or defer.

QUESTION NO: 004 OF

Page 331-334 PARAGRAPH NO: 1.1 through 4

DEFINITE/OPTION ITEM NO: D-079 PARAGRAPH NO:

Main Diesel Engine, Vulkan Coupling Overhaul

1. Work Item 79: Main Diesel Engine, Vulkan Coupling Overhaul, Can the Coast Guard supply the

Vulkan Coupling Tech Pub? What GFE parts come with the coupling elements? Are we to reuse the existing fasteners? Is the contractor removing any coupling hubs off the Main engine shafts or reduction gear shafts or just replacing the rubber elements that bolt up to the coupling hub halves on the engine and reduction gear shafts?

AWNSER: The Vulkan Coupling Tech Pub is found in the referenced Coast Guard Technical Publication (TP) 3518B, 07-MAY-01, Main Diesel Engine (MDE) - Model 3608/1. Contractor shall contact the OEM (Vulkan) in additional technical details beyond what is contained in the provided Technical Publication.

The specification as written requires "Contractor shall remove Vulkan couplings for bench overhaul.".

Contractor shall bid accordingly. As permitted in the course of work performance, Contractor may propose via CFR recommendations for USCG consideration and potential Contract changes.

The specification as written does not require outright fastener renewal. As is expected in good marine repair practice, that during work performance all disturbed fasteners are to be cleaned and inspected for suitability of re-use. Contractor shall submit a CFR with negative findings (specific fasteners recommended for renewal).

QUESTION NO: 003 OF

Page 295 PARAGRAPH NO: 3.8

DEFINITE/OPTION ITEM NO: D-067 PARAGRAPH NO:

Drydock

1. QUESTION: In Work Item 67: Drydock, paragraph 3.8 Fleeting, is the contractor required to fleet the vessel and what other docking position does the Coast Guard propose?

Fleeting is not required. Secondary blocking position is Position #1.

QUESTION NO: 002 OF

Page 188-191 PARAGRAPH NO: 1.2

DEFINITE/OPTION ITEM NO: D-043 PARAGRAPH NO:

Thruster Units (Bow and Stern), Overhaul

1. In Work Item 43: Thruster Units (Bow & Stern), Overhaul, in paragraph 1.2 Government furnished property; they only have one Seal kit and one Seal Spacer when the Coast Guard needs to furnish two seal kits and two Seal Spacers (one for each thruster unit) for the bow and the stern thrusters. Will the Government supply two seal kits and two seal spacers? Can the

Coast Guard furnish the list of items included in the seal kits?

Kit and Spacer are for Bow only.

For Stern**

3.5.5 Reassemble and reinstall all removed components, with new Contractor-furnished propeller shaft seal and associated O-rings.

QUESTION NO: OF

Page 64-80 PARAGRAPH NO:

1.1, 3.11.2, 3.12, 3.12.1

DEFINITE/OPTION ITEM NO: D-017 PARAGRAPH NO:

3.23, 3.23.1, 3.23.2, 3.23.2.1, 3.23.3, 3.23.4

Propulsion Shafting; Remove, Inspect, and Reinstall

1. QUESTION: There is no bulkhead seals overhaul Item. The two propulsion shaft bulkhead seals are mentioned in D-17 Remove Propulsion shaft removal, in paragraphs 1.1, 3.11.2, 3.12, 3.12.1, 3.23, 3.23.1, 3.23.2, 3.23.2.1, 3.23.3, 3.23.4.

In paragraph 3.23.2.1, it states machining of housings may be required. Will it be a change order if machining of the bulkhead seal housings is needed?

Will it be a change order if new parts are needed and machining of the diaphragms to reinstall bulkhead seals to meet proper tolerances (gaskets, diaphragms, O-rings) are required?

Will the Government supply the new diaphragms, gaskets and O-rings if needed?

CFR is necessary after removal. If damage is noted, Change Request will be processed to repair.