RFP_QandA_No__4_EARHART_16-R-4301.docx
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- N32205-16-R-4301
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MILITARY SEALIFT COMMAND
N32205-16-R-4301
USNS AMELIA EARHART ROH/DD
QUESTIONS AND ANSWERS #4
The following are answers to questions received from potential offerors. The answers provide clarification only and do not constitute an amendment to the solicitation.
SPECIFICATION ITEM NO.: 101
PARAGRAPH / SECTION NO: 3.1.2
TITLE: Steel Renewal and Preservation Frames 57-1/2 through 66
QUESTION:
Quantity of shell plating listed in paragraph 3.1.2 is 1.500 sq ft. but defined area is only 789 sq ft. please advise which sq ft area is correct.
Photos provided in Q&A #2 show side port door in the repair area, but specification does not address this side port door. Please confirm no repairs are required to this door or door frame other than renewing shell plating attached.
ANSWER:
Square footage is approximate. Side Port Door shall remain and shell plating replaced.
SPECIFICATION ITEM NO.: 115
PARAGRAPH / SECTION NO: 3.1
TITLE: Deck and Bulkhead Cable Penetration Renewals
QUESTION:
Table 3.1 lists 27 locations of stuffing tubes and quantities, but no sizes were given.
Additionally, there are two locations that are listed as “unused or Not in use” Can sizes of tubes or cables be provided and should contractor renew the unused tubes or permanently remove them.
ANSWER:
The piping used for all of the stuffing tubes are 3/4" Schedule 80. One exception being 02-76-2 RAS BAY 8, 3 1/2" pipe. Unused stuffing tubes will be permanently removed.
SPECIFICATION ITEM NO.: 118
PARAGRAPH / SECTION NO: all TITLE: Cargo Door Modifications 01 Level Station 7&8 (T-ALT 424)
QUESTION:
Work item is listed on the J-2, but no Work Item Specification was provided.
Please advise if specification will be provided or J-2 will be revised.
ANSWER:
Work Item Specification will be provided.
SPECIFICATION ITEM NO.: _ 519 _
PARAGRAPH / SECTION NO:_ Paragraph 7.12-7.12.1_
TITLE: PROPULSION SHAFT TURNING GEAR SWITCH RELOCATION (T-ALT 379)
QUESTION:
Looking at work item 519 GE Propulsion’s cost to test and verify the Propulsion Turning Gear Switch Relocation is extremely high for this work.
Is GE Propulsion necessary or is there an alternative representative we can use if needed at all?
7.3 Weld the extension piece to the shaft turning gear assembly as per figures 2 and 3. Grind surface to smooth.
7.4 Relocate the turning gear switch to the forward end of the turning gear assembly per figure 2.
7.12 Manufacturers Representative:
7.12.1 Provide the services of GE Power representative to test and verify the operation and configuration of the modified switch.
Figure 3
ANSWER:
GE Propulsion Rep is not required. SY KTR may use qualified electrician and/or outside machinist to validate and adjust turning gear switch location.
SPECIFICATION ITEM NO.: 903
PARAGRAPH / SECTION NO 7.9, 7.9.1 ,7.9.6 , 7.9.8
TITLE: PROPELLER SHAFT AND STERN TUBE INSPECTION
Paragraph 7.9 refers to the stern tube bearing area, then later NOTE after 7.9.1 refers to the stern tube and stern tube bearing area. Paragraph 7.9.6 & 7.9.8 refer to the stern tube and stern tube bearing area as requiring preservation…Based on the above contradictions It is not clear if the entire stern tube requires preservation OR only the bearing area…Please clarify.
ANSWER:
The entire Stern Tube and Stern Tube Bearing areas shall be blasted.
SPECIFICATION ITEM NO.: 907
PARAGRAPH / SECTION NO: Paragraphs 4.2.1 & 7.1 TITLE: Underwater Hull Cleaning & Painting Paragraph 4.2.1 states, “4.2.1 Coatings and solvents required by this work item as follows:
Coat Product/Color Quantity
| Epoxy A/C | Amercoat 240, Red Oxide | 200 gal | ||||
| Epoxy A/C | Amercoat 240, Black | 200 gal | ||||
| Epoxy Glassflake | Amerlock 400GFK, Terracotta | 110 gal | ||||
| Ablative A/F | ABC-3, Red | 700 gal | ||||
| Ablative A/F | ABC-3, Black | 200 gal | ||||
| Markings, U/W | Amercoat 5450, White | 8 gal | ||||
| Solvent | Amercoat 65 | 15 gal | ||||
| Solvent | Amercoat T-10 | 200 gal | ||||
| Solvent | Amercoat 15 | 2 gal”. |
Paragraph 7.1 states, “Perform all of Reference 2.1 Standard Item 90 on areas defined in paragraph 3. Use the water jet method of standard item 90. The basic scope of the standard work item is as follows:
| - | Clean the underwater hull |
| - | UHP Water jet the underwater hull (this item assume 30% will be taken to bare metal) |
| - | Removal of all AF down to intact epoxy surfaces |
| - | Apply one coat epoxy to bare metal areas |
| - | Apply a second coat of epoxy to entire underwater hull. |
| - | Apply three coats of AF |
| - | Restore all hull markings.” |
In review of the statement of work specified in paragraph 7.1, it appears that the quantity of paint being supplied by paragraph 4.1 is insufficient to accomplish the coating application required by paragraph 7.1.
QUESTION:
Please confirm the statement of work specified in paragraph 7.1; and if correct, please revise the material listing specified in paragraph 4.1.
ANSWER:
PPG Rep has reviewed work item and made changes. Please see revised WI 907.
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