Work_Item_O-09_Flight_Deck.pdf

USCGC ALEX HALEY (WMEC-282) DOCKSIDE AVAILABILITY FY2019

14 (Rev-0)

WORK ITEM 9: Decks - Helicopter Operating Areas, Preserve (Optional)

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew deck covering with slip-resistant deck covering system (MIL-PRF-24667 Type V Comp. G Non-skid) for areas as listed in Table 1.

TABLE 1. SLIP-RESISTANT DECK COVERING

LOCATION COMPO SYSTEM/APPENDIX

(SFLC STD 6310)

TOPCOAT

COLOR

PRESERVE

NOTE

Flight Deck (see 4.1

(Definition of HELO Ops

Areas)

Deck Flight Deck Dark Gray

36076 Match existing adjacent surfaces

100%

MIL-PRF-

24667 Type V Comp. G Non-skid

**Preservation level

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 282 WMEC 601-002, Rev H, CGC ALEX HALEY (WMEC 39) Booklet of General Plans

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

15 (Rev-0)

OTHER REFERENCES

MIL-PRF-24667, 2008, Coating system, Non-Skid, for Roll, Spray, or Self-Adhering Application

Naval Air Warfare Center (NAVAIR) NAEC ENG 7576, 2009, Shipboard Aviation Facilities Resume

QPL-24667, 2008, Qualified Product List of Products Qualified under Performance Specification MIL-PRF-24667

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 11 (SSPC-SP 11), 2012, Power Tool Cleaning to Bare Metal

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep. The Contractor shall provide a Certified Coating Inspector, having successfully completed the NACE-International Coating Inspector Program (CIP), Level 3 - Peer Review, and accomplish applicable requirements in SFLC Std Spec 0000, paragraphs 3.2.4.2.2.1 through

3.2.4.2.4 (Qualifications, Professional independence, Certification documentation, and Tech rep duties)

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work, as specified in SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection), and abide by all applicable environmental protection tasks, as specified in paragraph in SFLC Std Spec 0000, Appendix B (Requirements for Environmental Protection). Upon completion of work, the Contractor shall remove and dispose of all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the below-listed:

Flight deck safety net assemblies.

Talon grid cover.

Tank Vents.

3.1.5 Surface preparation optional methods. The Contractor has the option of using either high/ultrahigh pressure water jetting or abrasive blasting to achieve the required surface

16 (Rev-0) preparation, prior to application of the coating system specified in 3.3 (Preservation requirements). The Contractor may add abrasives to the waterjet stream, for one or both of the following reasons:

Achieving greater productivity.

Achieving the required surface profile.

NOTES AND CAUTION!

1. Waterjetting without abrasive addition does not provide any additional anchor profile to the surface, beyond what was present after the previous surface preparation.

2. Initial removal of the coating system around deck edges, fittings, and deck coaming may be by power tool cleaning in accordance with

SSPC-SP-11.

3. Flight Deck surfaces are constructed of HY-80 steel and may NOT be heated to remove the existing covering.

4. During pier side surface preparation, suitable means to contain generated dust, waste water, paint chips, spent abrasives, and overspray must be provided or employed, as applicable. Plywood or net/canvas barriers are typically used to surround the area being blasted to contain stray steel shot. When net barriers are used, the mesh size of the netting material must be small enough to ensure that the steel shot will be contained. In addition, net barriers, when used, must be overlapped where attached to stanchions, and anchored at the bottom for the entire net’s length between stanchions, to limit the clean–up and localize the blast medium. Steel shot on a deck is a foreign object damage (FOD) hazard and extreme care must be taken to prevent slipping when walking over contaminated areas.

3.1.6 Visual Landing Aid (VLA) and safety marking sketch. Prior to commencing surface preparation tasks, the Contractor shall develop and submit, to the COR, a sketch of all existing Flight Deck VLA and safety markings and their measured locations on the Flight Deck, using NAVAIR NAEC ENG 7576 as guidance. Obtain Coast Guard Inspector approval of the sketch, prior to applying new marking paint (see 3.3.2 (VLA and safety markings)).

3.1.7 Substrate inspection. After completion surface preparation and before application of primer coat, the Contractor shall perform a visual inspection of the prepared substrate; submit a CFR.

3.1.8 Ultrasonic thickness (UT) measurement. The Contractor shall take a total of 50 UT measurements in accordance with SFLC Std Spec 0740, Appendix C in locations designated by the Coast Guard Inspector and using Coast Guard Drawing 282 WMEC 601-002 as guidance.

Submit a CFR.

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

17 (Rev-0)

3.1.9 Work coordination. The Contractor shall coordinate the accomplishment of this work item with the following work items:

Tenting, Provide

3.2 Operational test, initial. Prior to commencement of work, the Contractor shall witness Coast Guard personnel perform an initial operational test of all items or shipboard devices to be disturbed, used, repaired, or altered, to demonstrate existing operational condition. Submit a CFR.

3.3 Preservation requirements. The Contractor shall prepare and coat the deck surfaces designated in paragraph 1.1 (Intent), using the system specified for “Flight Deck”, in SFLC Std Spec 6310, Appendix A (Cutter and Boat Exterior Painting Systems). MIL-PRF-24667 Type V Comp. G is the required non-skid system. Ensure that the system is qualified as “UV/LSA”, as specified in QPL-24667, and is epoxy-based.

3.3.1 Top coating color. The Contractor shall accomplish the following tasks:

3.3.1.1 Non-skid/non-slip surfaces. Select Grey (36076) as the top/finish coat color.

3.3.1.2 The contractor shall apply the second coat of primer notated in SFLC Std Spec 6310 (Appendix A). This is not considered optional.

3.3.1.3 Non-slip-exempted areas. Apply a dark grey color (36076) top/finish coating, in lieu of non-slip top-coating over the following non-slip-exempted areas:

Deck fittings, including, but not limited to: pad eyes, label plates, net supports/foundation, helicopter tie-down fittings, and lifting handles for aircraft fuel filling station.

Areas within two inches of deck fittings, welds, and protrusions.

Areas within six inches of adjacent bulkheads, deck coaming, and deck edges.

Waterways.

3.3.2 VLA and safety markings. The Contractor shall accomplish the following tasks:

3.3.2.1 Remove Flight Deck landing lights in way of work. Visually inspect light assemblies and submit CFR. Prepare and preserve light assemblies to match existing in accordance with SFLC Std Spec 6310. Reinstall light assemblies to original configuration.

3.3.2.2 Stripe the Flight Deck with the same pattern sketched prior to surface preparation.

3.3.2.3 Paint new VLA and safety markings with a White color (37875) finish coating.

3.4 Low temperature cure system. If a Change Request has been authorized and released, the Contractor shall apply a low temperature cure system, conforming to MIL-PRF-24667, Type VIII, Composition G. Ensure that the white color top coating is a silicone alkyd enamel product, recommended by the nonskid coating system manufacturer, in lieu of the polyurethane-based (Interthane 990) coating listed on QPL-24667.

18 (Rev-0)

3.5 In-process quality control measures. The Contractor shall abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”), and the quality controls specified in SFLC Std Spec 6310, paragraph 3.1.10 (Coating inspection) and 3.1.15 (Coating system tests).

NOTES AND WARNING

1. The flight deck coating system must be procured as a kit containing the following – all conforming to MIL-PRF-24667:

a. Anti-corrosive/primer coating.

b. Dark grey color (36076) non-slip top coating.

c. Dark grey color (36076) finish coating, for non-slip exempted areas.

d. White finish color (37875) coating, for VLA and safety markings.

2. The low temperature system is only authorized for application at temperatures between 35-45 degrees F.

3. Polyurethane-based non-skid systems are not authorized on Coast Guard vessels.

4. Surfaces being preserved are considered “critical-coated surfaces”.

3.6 Non-skid surface appearance and texture. The Contractor shall ensure the non-skid surface shall show a pattern of peaks and ridges. The ridge profile shall be continuous and reasonably uniform. Peaks and ridges shall be generally in the same direction (fore and aft), approximately 1/2 to 1 inch apart, and approximately 1/16 to 3/32 inches high. Aggregate shall present a rough uniformly coarse appearance over the entire surface with no loosely bound clumps of particles.

All weld seams shall be cross-rolled from a minimum of 3 inches on either side of the weld.

3.7 Operational test, post repairs. After completion of work, the Contractor shall thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition.

Submit a CFR.

4. NOTES

4.1 Definition of “HELO Ops Areas”. “HELO Ops Areas” are defined as 01 Level deck surfaces outboard of the fully retracted HELO Hangar, port and starboard sides, from approximately Frame 31 aft., shown on Coast Guard Drawing 282 WMEC 845-003 and attached Figure I, including helicopter tie-down fittings, 01 Deck perimeter coaming, talon grid cover, raised “mushroom” type tie-down fittings, line-up light fixtures, flight deck net supports/foundations, and up to six inches on all adjacent vertical surfaces, where applicable.

19 (Rev-0)

4.2 Certification hot line action desk. The Naval Air Warfare Center Aircraft Division Lakehurst has the responsibility for inspection and certification of all air capable aviation ships which support and operate with helicopters. A Shipboard Aviation Facility hot line action desk has been established at the Naval Air Warfare Center Aircraft Division Lakehurst, to provide a central point of contact for obtaining all information pertinent inspection and certification issues, including VLA and safety markings. The hot line action desk is in operation 24 hours a day and can be reached by contacting:

NAVAIRWARCENACDIVLKE

Lakehurst, N.J 08733-5000 Hot Line Action Desk (4.8.2.5) Phone: (732) 323-2592

4.3 Unit’s responsibilities. The ship's force will be responsible for the following:

Removing and reinstalling all deck drain gratings.

Plugging deck drains.

Preliminary freshwater wash down of flight deck surfaces, in addition to adjacent bulkhead surfaces, prior to the commencement of contracted work, in order to remove sea salt.

Ensuring there is no engine operation and no stack emissions at any time during flight deck resurfacing.

Restricting access to the Flight Deck work area to only authorized personnel.

Contacting NAVAIR for inspection and certification of flight deck markings following work.

20 (Rev-0)

FIGURE 1 - SCOPE OF PRESERVATION FOR 282 WMEC (EXCLUDING HANGAR DECK