NOAA Standard Specification 0863.0.docx.pdf
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- FY27 NOAA Ship Gordon Gunter Drydock REFERENCES Federal contract opportunity
- Solicitation number
- 1305M226Q0144REF
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This is a NOAA Standard Specification (NOAA-STDSPEC-0863.0) providing guidelines for making temporary access cuts in structural members on NOAA vessels. The specification applies to 2025 and establishes requirements and procedures for contractors performing structural modifications to vessel components.
All temporary access cuts in structural members require prior approval from the Contracting Officer's Representative (COR) and are limited to situations where essential for accessing otherwise inaccessible areas or for equipment removal and installation. Contractors must submit dimensioned, scaled sketches showing the proposed access cut, adjacent framing members, nearby penetrations, affected structure scantlings, restoration methods, materials, welding details, and narrative justification. COR approval is signified by return of a signed sketch copy. Access cuts must feature smooth edges achieved through flame-cutting with a template, with corner radii no less than one-eighth of the transverse dimension of the opening (or one-eighth of the vertical dimension for vertical fore-and-aft structure). Restoration requires full-penetration welding from both sides, though one-side full-penetration welding using backing bars is acceptable with COR approval when access to both sides is not possible. Welds in principal structure (water-tight structure, decks, bulkheads, and their framing) at or below the "E" deck level must undergo dye-penetrant inspection for surface cracks, witnessed by and to the satisfaction of the COR. The COR may elect additional inspection methods to assure repair integrity.
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Text version
NOAA-STDSPEC-0863.0
NOAA Standard Specification 0863.0
STRUCTURAL ACCESS CUTS ON NOAA VESSELS
1.0 SCOPE
1.1 The intent of this item is to provide guidelines for making temporary access cuts in structural members.
2.0 REFERENCES
2.1 NOAA Vessel DWGs for respective vessel.
3.0 DEFINITIONS
3.1 None.
4.0 REQUIREMENTS
4.1 Openings cut temporarily in structural members for the purpose of providing access will be allowed only with prior approval of the COR. Such cuts will generally be considered only where essential for access to otherwise inaccessible areas or where necessary for the removal or installation of equipment. However, the following guidance is applicable regardless of the circumstances.
4.2 The Contractor must provide the COR with documentation of the proposed structural opening in the form of a sketch, dimensioned and to scale, of the proposed access cut, adjacent framing members, nearby penetrations in existence, and scantlings of affected structure. It shall also provide a description of the eventual restoration of the structure to its original configuration, including materials and welding details. A narrative justification for cutting the opening shall also appear on the sketch. (Note that a mere submittal of this sketch does not assure that approval of the cut will be forthcoming. The COR's return to the Contractor of a signed copy of the sketch constitutes approval of the proposal.)
4.3 All access cuts shall be smooth-edged (such as achieved by flame-cutting with a template), with corner radii no less than one-eighth of the transverse dimension of the opening (cuts in vertical fore-and-aft structure shall have corner radii no less than one-eight of the vertical dimension). Restoration of structure shall utilize full-penetration welding from both sides. One-side, full penetration welding using backing bars is acceptable where access to both sides of the weld is not possible, but must be approved by the COR.
5.0 NOTES
5.1 Welds in principal structure (defined as all water-tight structure, all structural
NOAA-STDSPEC-0863.0
decks and bulkheads, and framing of all these) at or below the "E" deck level shall be dye-penetrant inspected for surface cracks and the test witnessed by and to the satisfaction of the COR. While this is the minimum inspection required the COR may elect another form of inspection to assure the integrity of the repair.
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