PENOBSCOT_BAY_-_QUESTIONS_AND_ANSWERS_2.docx

70Z085-19-Q-P4553700 - QUESTIONS AND ANSWERS:

QUESTION:

Work item as written requires fabrication and installation of a cofferdam for a vessel that is located in a dry dock.

Is the contractor required to fabricate and install a cofferdam? If not, please remove the requirement for cofferdam fabrication and installation.

Answer : The cutter will be in a dry dock availability for this work item ; therefore a cofferdam should not be requireded ; but it is in the work item as a protective measure if needed.

Paragraph 3.6.2.1 states "Paint all distinctive visual identification markings, including the Coast Guard Emblem…".

It also includes the note regarding the Coast Guard Emblem.

Is the contractor allowed to procure and apply the emblem, letters, and numbers from the identified known source?

Answer : The cutter wants all distinctive visual identification markings, including the Coast Guard Emblem painted. The note with the source for the decals is a recommend source if needed.

Paragraph 3.2.4 states "AC system rebuilding…to all areas where substrate or undercoating system is exposed...".

Is the intent of paragraph 3.2.4 limited to application of AC coatings where substrate (bare metal) or undercoating system (AC coating) is exposed? If not, please identify the full coatings to be applied.

Answer : Refer to the each Partial preservation work item intent for notes and requirements. Each Condition A,B and C is for each condition needed. Also, Refer to STD SPEC 6310 for coating requirments as per the specification.

Is the exterior surface of Fan Room 01-48-0-Q and Fan Room 01-57-0-Q considered to be superstructure and require preservation in accordance with work item 53?

Answer : As per the definition of partial preservation of the superstructure in paragraph 4.1 ; main deck up; excluding the deck, mast, and stack surfaces.

Is the underwater hull to be coated with 2 coats of antifouling paint at 5.0 to 6.0 mils DFT each?

Answer: Yes, as per the work item O-004; Paragraph 3.2.4.2 New AF top-coating. While the undercoating system is still tacky, APPLY TWO COATS of ablative copper antifouling (AF) paint conforming to MIL-PRF-24647 (Type II, Class 1, Grade A or B), at 5.0-6.0 mils DFT each.

Paragraph 3.2.4.1.2 requires application of a 1 to 2 mil coat of material over the entire U/W Body but does not identify the specific coating product to be applied.

What coating product is to be applied at a 1 to 2 mil wet film thickness to the entire underwater body?

Answer : The contractor will have to reference the SFLC Std Spec 6310 as called out in the paragraph 3.2.4.1.2 for the coating product to be applied.

Is the exterior surface of Fan Room 01-48-0-Q and Fan Room 01-57-0-Q considered to be superstructure and require preservation in accordance with work item 53?

ANSWER : As per the definition of partial preservation of the superstructure in paragraph 4.1 ; main deck up; excluding the deck, mast, and stack surfaces.

Is the interior side of the Pilothouse weather deck from weather door 01-23-1 to weather door 01-23-2, 30 feet 10 inches ABL to approximately 34 feet 11 inches, considered to be superstructure which is required to be preserved by work item 53?

ANSWER: As per the definition of partial preservation ; Yes, this area of the pilothouse is consider superstructure.

The Superstructure surfaces are defined as vertical and horizontal surfaces (excluding deck, mast, and stack surfaces), from the Main Deck Level up, which include, but are not limited to the following, as applicable: bulkheads, doors, underside of overhangs and overheads, inboard surfaces of the bulwark, ladders, metallic rails, stanchions, stand offs, brackets, piping, stuffing tubes, structural tees, angles, and gussets. The six-inch dado where the superstructure joins the deck is not included in the definition of superstructure; it is normally preserved with the deck surfaces.

QUESTION: Is the Government going to empty out the paint locker prior to the hatch work. And if so, will that be done at the yard or in Bayonne?

Answer: The cutter will arrive with items in the paint locker for ship’s force work. The majority will be removed in Bayonne; and remaining items stored in the requested flamable stores container requested in the W/I #56 Temp Services.

SOLICITATION SECTION:

PARA NO.

TITLE:

Main Propulsion Diesel DC Generator, Dry Clean & Inspect

Amendment 001 released REV 02 of the Specification and a fillable Section B Pricing Sheet. The revision sheet of Specification REV 02 does not mention the cancellation of Work Item 66, although Work Item 66 was removed from the specification. The new Section B Pricing Sheet does not include Work Item 66 any longer. Is it the government’s intention to delete Work Item 66 from the specification package?

ANSWER: Yes, the government is choosing to delete work item #66 for the specification; and choses to not do this work item in a dry dock due to high risk of contamination.