0617_A_06 Lvl Vent Trunk Door Install.doc

USNS CHARLES DREW

(T-AKE 10)

OUTFIT, FURNISHINGS and Habitability

RFP NO. N40442-10-R-3012

23 FEBRUARY 2010

ITEM NO. 0617

Category "A"

MSC/MT/NDN

06 LEVEL VENT TRUNK DOOR INSTALLATION (Transalt No. TAKE-041)

1.0

ABSTRACT

This item describes the replacement of the 06 level vent trunk bolted manhole with an exterior, dogged, joiner door.

2.0

REFERENCES

2.1 COSMO Co., LTD Dwg No. CD-X630009CD-2, SUS Weather Door

2.2 NAVSEA Standard Drawing 100-7489122 Rev c, Standard Structural Details

2.3 NAVSEA Standard Drawing 085-7488877 Rev H, House Scantling

2.4 MSC Dwg 600-8195609 Rev B Plan

2.5 NAVSEA 624-7489144 Rev B (NASSCO 471-332-4716)

3.0

ITEM LOCATION/DESCRIPTION

3.1 Location/Quantity

3.1.1 Location: 06 Level, Fr. 71

3.1.2 Quantity: None

3.2 Item Description/Manufacturer's Data:

3.2.1 Contractor shall provide all applicable materials listed and shown in Reference 2.1 and those specified in the text of this Work Item.

3.2.2 All quantities are considered estimates. The Contractor shall provide exact quantities and additional material in order to install a fully functional system that meets the requirements of this specification. Any additional material or components such as fasteners, hangars, weld material, etc. that is not included on the Bill of Materials or the references shall be provided by the Contractor.

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES:

4.1 Joiner Door, Weathertight

5.0 NOTES

5.1 The contractor and all subcontractors, regardless of tier, must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors, regardless of tier, must comply with the requirements of all applicable GTR’s including but not limited to GTRS 1 through 7, 22, 24, 25, 26, 28, and 29.

5.2 The Contractor and all subcontractors, regardless of tier, are advised to review other work items under this contract to determine their effect on the work required under this work item.

5.3 All units in this item are in millimeters unless otherwise specified.

6.0 QUALITY ASSURANCE REQUIREMENTS: None Additional

7.0

STATEMENT OF WORK

7.1 Arrangements/Outfitting:

7.1.1 Removals

a. Remove vent trunk insulation in way of new door installation on the aft, interior bulkhead of Vent Trunk (06-70-0).

b. Remove exterior grab rails in way of new door installation at Frame 71. All edges shall be ground smooth and free of burrs.

7.2 Structural

7.2.1 Removals

a. Remove bolted manhole and all its components, located on the 06 Level at Frame 71, approximately 1143mm stbd of centerline, using Figure 617-1 as guidance. Manhole and components to be turned over to MSCREP.

b. Remove approximately 2175mm of BP 120 x 8 mm L-1 stiffener as required for door installation on the 06 Level, Fr. 71 using Figure 617-2 as guidance. All edges shall be ground smooth and free of burrs.

c. Cut out and remove 825mm x 1908mm steel bulkhead plating as required for door installation on the 06 Level, Fr. 71 using Figure 617-3 as guidance. All edges shall be ground smooth and free of burrs.

7.2.2 Installations

a. Install BP 120 x 8 stiffener between L-0 and L-1 on the 06 Level, Fr. 71 using Figure 617-4 as guidance.

b. Install BP 120 x 8 stiffener inboard of new door cut using Figure 617-4 as guidance.

c. Install a new weathertight, dogged joiner door with right-hand, outboard swing, Cosmo Co., Ltd. model SUS Weather Door, Frame Type WEE, or equal and all its related components on the 06 level, Fr. 71 using References 2.1 and 2.2 as guidance. Door lock shall be keyed to existing ship master keys.

7.3 Mechanical/Fluids: None Additional

7.4 Electrical: None Additional

7.5 Electronics: None additional

7.6 Preparation of Drawings

7.6.1 Prepare working drawings to accomplish all work required by this work item.

7.7 Inspection/Test

7.7.1 Operational door test

7.8 Painting

Prepare, prime, and paint all new and disturbed surfaces to match surrounding surfaces.

7.9 Marking

Install nameplates, notices, and markings for all new and modified areas.

7.10 Manufacturer's Representative: None

8.0 GENERAL REQUIREMENTS: None additional

617-1