USNS EARL WARREN A0001

N6264927RL005 USNS EARL WARREN (T-AO 207)

FY27 ROH SSU SN 27-010

TITLE: Deckhouse Preservation (10YR)

1. QUESTION:

Kindly advise if we can allow to carry-out WJ-2 in lieu of abrasive blasting SSPC-SP10 for the surface preparation of the deckhouse vertical areas.
Due to environmental and regulatory constraints for onboard quay execution in Singapore, dry abrasive blasting is restricted. As such, we have proposed: - SSPC-SP WJ-2 (Waterjet Cleaning) as an alternative surface preparation method. - This method is widely accepted and capable of achieving equivalent cleanliness and coating performance where permitted.
We are seeking formal approval/deviation from MSC to use SSPC-SP WJ-2 (Waterjet Cleaning) as an alternative surface preparation method.
1a ANSWER: Item SSPC-SP10 for surface prep must stay as written due to surface RHR profile needs to be obtained
TITLE: High Profile Non-Skid Weatherdeck Preservation (20PCT) (1YR)

2. QUESTION:

1) Please confirm if below are correct quantities to be considered in the quote: -HP washing – 18,300ft2
-Blasting – 12,850ft2
-Painting (epoxy) (blasted areas) – 12,850ft2 x 2 coats -Painting (non-skid) (full area?) – 18,300ft2 x 1 coat
-Number of tiedown sockets – 100 nos or 300 nos?
2) Please advise if hydroblasting or WJ-2 is acceptable for the blasting method/surface preparation.
Due to environmental and regulatory constraints for onboard quay execution in Singapore, dry abrasive blasting is restricted. As such, we have proposed: - SSPC-SP WJ-2 (Waterjet Cleaning) as an alternative surface preparation method.

- This method is widely accepted and capable of achieving equivalent cleanliness and coating performance where permitted.
We are seeking formal approval/deviation from MSC to use SSPC-SP WJ-2 (Waterjet Cleaning) as an alternative surface preparation method. 2a ANSWER: SSPC-SP10 for surface prep must stay as written due to surface RHR profile needs to be obtained.

TITLE:

Work Items 0021/ 0568A/0569

3. QUESTION:

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•
•

Price sheet lists Spec 0021A. Spec received is 0021.

Price sheet lists WI 0568A TAO205-CCSI-FIRE AND SMOKE DETECTION AND

ALARM SYSTEM (1 YR) (SCSI), but spec received is 0568A_A_TAO205-CCSIWATER MIST-SPRAY-SPRINKLER INSPECTION AND TEST (1 YR) (SCSI)

Received spec 0569_A_TAO205-CCSI-FIRE AND SMOKE DETECTION AND

ALARM SYSTEM (1 YR) (SCSI) that doesn’t appear on price sheet.

3a ANSWER: See revised J-3:
Correct Work Item 0021A to 0021

Correct 0568A from TAO205-CCSI-FIRE AND SMOKE DETECTION AND ALARM