0102_A_STRUCTURAL INSPECTIONS REV A.docx

USNS SPEARHEAD

(JHSV 1)

STRUCTURAL INSPECTIONS REV A

1.0 ABSTRACT

1.1 This item describes structural inspections of areas identified on JHSV-1.

2.0 REFERENCES

2.1 JHSV_Structural_Inspection_Guide_

2.2 8443364_F General_Arrangement

2.3 8444521_A Tunnel FR 8-24

2.4 8444522_A Tunnel FR 25-41

2.5 8444524_A Tunnel FR 52-70

3.0 ITEM LOCATION/DESCRIPTION

3.1 Location

3.1.1 Various per 2.1

3.1.2 Tunnel Void 2-7-0

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE: NONE

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.

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. Many of the definitions relating to performance of this work item are found in Work Item 001.

5.3 The contractor shall furnish the services of an ABS approved Non-Destructive Test Inspection and Analysis company.

6.0 QUALITY ASSURANCE REQUIREMENTS

6.1 The contractor shall document the findings as stated in this SOW and provide a report.

7.0 STATEMENT OF WORK REQUIRED

7.1 Furnish access to locations for inspections identified to include removal of man-hole covers, scaffolding, lighting, ventilation and removal of insulation.

7.2 Furnish services of Marine Chemist to certify spaces for inspection as “Safe for Man”.

7.3 Restore inspected areas to as found condition to include replacement and repair of insulation. All manhole covers shall be replaced with new gaskets.

7.3.1 Procure and install lagging pads in areas with removed insulation. Pads shall match existing color and fire rating. Secure pads with stainless fasteners and wire.

7.4 Furnish the services of an ABS approved Non-Destructive (NDT) Services Company to examine the following locations using 5X visual inspection in accordance with NAVSEA Technical Publication T9074-AS-GIB-010/271, is acceptable:

7.4.1 All locations identified in reference 2.1. (86 page document)

7.4.2 Tunnel Void 2-7-0: All welds on Frames 7,16,24,32,41,52,70 only in the location of the Tunnel area 2-7-0 will be gas free IAW WI 0021.

7.5 Record the results of the inspections. Deficiencies shall be by digital photograph and documented by location description and finding. Provide an electronic copy of the completed document with photographs to MSC REP.

7.6 Provide all staging, gas free and labor required to weld repair a total of 20 (twenty) crack locations found during para 7.4 inspection. Assume cracks will be 4 inches in length.

7.7 Manufacturer’s Representative:NONE

8.0 General Requirements: None additional.

0102-3