J7_LWT_997-004.pdf

LOCAL WORK TEMPLATE

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SHIP: N/A ITEM NO: 997-11

COAR: N/A PCN: N/A

LWT FILE NO: 997-004 CMP: N/A

REVISED: 08 Oct 2016 PLANNER: N/A

1 of 5 ITEM NO: 997-004

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

1. SCOPE:

1.1 Title: Drydocking and Undocking; accomplish

1.2 Location of Work:

1.2.1 Contractor's Facility

1.3 Identification:

1.3.1 Not Applicable

2. REFERENCES:

2.1 PM 233-014 (SPOR), Prevention of Accidental Graving Dock Flooding

2.2 ____________, Docking Plan

2.3 S9086-7G-STM-010/CH-997, Docking Instructions and Routine Work in Drydock

3. REQUIREMENTS:

3.1 Furnish a sound dock with qualified personnel, plus necessary equipment to safely and satisfactorily dock the ____________.

3.1.1 Provide the SUPERVISOR with an independent third party

certification of the docking facility and its capability for docking the craft. Any limitation in dock loading, rate of flooding or dewatering, block location, craft displacement or trim shall be included in the statement.

3.1.2 Provide the services of a dockmaster who has been certified by the contractor and accepted by the SUPERVISOR. Provide necessary supporting personnel to satisfactorily accomplish the docking.

3.1.3 Provide tugs, pilots, and personnel for the complete transfer, docking and undocking of the craft. The number of tugs shall be agreed to by the SUPERVISOR at the Docking Conference.

3.1.4 Submit a drydocking procedure, to MARMC Code 240 via the SUPERVISOR prior to drydocking the craft, which shall include the following: operating practices; safety and security plans; special precautions or actions that are required by the characteristics of the dock or the craft, such as the pumping and flooding schedule on floating drydocks and specific list, trim and stability requirements of the craft during docking and undocking. The procedure shall address the specific docking and undocking evolutions to be performed.

3.1.4.1 When utilizing a graving dock accomplish the additional requirements of 2.1.

3.2 Develop and provide a blocking plan to set and align the docking

SHIP:

2 of 5 ITEM NO: 997-004

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

blocks to the SUPERVISOR for review and approval.

3.2.1 The blocking plan shall be submitted in the form of a scaled drawing which includes: block size, block spacing, location of the craft with respect to the blocks at landing. Position blocking to ensure that propellers, rudders and other equipment on the surface of or protruding from the hull will not be damaged and shall be accessible for removal and repairs. Provide at least the minimum clearance between the craft's hull and drydock necessary to accomplish drydock work within these work items. Docking clearances shall be determined by the contractor utilizing 2.2 for guidance and the minimum clearance between the side of the craft (including fixed projections) and permanent dock structure (such as catwalks, crane rails, etc.) shall be 12 inches for bringing the craft into or out of dock and performing drydock work. Ensure that hull openings will not be obstructed or state that fleeting or some other method will be used to make all openings accessible during the drydock period.

Should the contractor determine that 2.2 provides an accurate description of his proposed docking situations a statement of same shall be provided. Data requested by this item shall be accompanied by a written request for approval to the SUPERVISOR a minimum of 10 working days prior to the scheduled docking date. The use of haul, fixed, universal or fitted blocks and the type of docking facility in which the craft will be docked shall be clearly stated.

3.2.2 Docking proposals shall include supporting data substantiating that the block loading pressures are limited to a maximum of 20 long tons per square foot, that the number, distance from center line and square footage of side blocks per side is sufficient to resist overturning moments by providing at least the minimum number specified by 2.2 and that at least 90 percent of blocks land on longitudinal strength members or main transverse bulkheads.

3.2.3 Crib and brace blocking shall be in accordance with 997-2.5 of

2.3 using the drawing applicable to the contractor's type of docking facility.

3.2.4 Blocking shall be constructed of hardwood or composite

concrete/hardwood and soft caps, with at least 2 inches of soft cap thickness.

3.3 Provide, set and align the blocks in accordance with the approved blocking plans.

3.3.1 When determined that 2.2 is adequate for block installation provide, set and align the blocks in accordance with 2.2.

3.4 Accomplish an inspection of blocking. Provide documentation of inspection showing blocking locations relative to sighting marks on docking coping, spacing, offsets, heights and shaping to the SUPERVISOR at least 4 hours prior to flooding the drydock. Immediately prior to flooding of the dock, accomplish a final block check with the SUPERVISOR.

3.5 Drydock the craft. The craft shall be drydocked during the first 10 percent of the availability.

3.5.1 Immediately after the craft is drydocked, inspect the fit on the blocks. Provide necessary shimming between blocking and hull in the event of hull movement due to removal of ballasting or shifting

3 of 5 ITEM NO: 997-004

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

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of craft load.

3.6 Within 8 hours after docking, wash down the craft's underwater hull and fittings, with water of at least 100 PSIG pressure and remove dirt, slime, marine growth, fouling and other foreign substances.

3.6.1 Wash down the entire dock basin and remove silt, mud and debris immediately after the craft is docked.

3.7 Electrically connect craft's hull at the bow and stern of the craft with minimum of 500,000 circular MIL cables and to the ground connection in drydock for protection against lightning and other static charges.

3.7.1 The static ground leads shall be connected to the craft being docked before water is pumped to one foot above keel level.

3.8 Maintain watertight integrity.

3.8.1 Provide temporary access closure plates and fastenings prior to removing plates or cutting access openings below four feet of waterborne freeboard.

3.8.1.1 Closure plates shall be available on short notice for emergency sealing of the temporary access openings.

3.8.2 Seal access openings with closure plates when conditions warrant.

3.8.3 Secure openings at the end of each shift not immediately followed by another shift engaged in drydock work.

3.8.4 Secure vulnerable compartments in order to minimize potential damage to the extent permitted by scope and urgency of work when an area of shell plating removal makes temporary closure impracticable.

3.8.5 Schedule underwater hull operations to maintain craft's positive stability and maximum hull watertight integrity in the event of flooding.

3.8.6 Remove the temporary closures when no longer required.

3.9 Inspect the underwater hull and underwater appendages for conformance with 2.2. Check and correct 2.2 to conform to the craft's full form, appendages and shell openings. Plot and locate on 2.2 any underwater installations if they deviate from the installation drawings.

Submit two marked-up copies of 2.2 showing corrections and additions to the SUPERVISOR.

3.10 Upon completion of bottom cleaning and painting, shift the craft on blocks and ensure 100 percent bottom cleaning and painting.

3.10.1 Blocking shall be positioned to ensure that the craft lands on the framing in accordance with 2.2.

3.11 Maintain the craft in drydock a sufficient length of time to accomplish all drydock work.

3.12 Remove ballast to accomplish work required by other work items.

Comply with regulations for disposal of contaminated liquids.

3.13 Provide ballasting and necessary services to ballast tanks as approved by the SUPERVISOR with clean fresh water.

4 of 5 ITEM NO: 997-004

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

3.14 Submit one legible copy, in hard copy or approved transferrable media, of a report to the SUPERVISOR prior to undocking, certifying that contractor work in the work items requiring the craft to be in drydock including welding on interior surfaces of underwater hull is in fact complete.

3.15 Undock the craft at a date and time mutually agreed upon by the SUPERVISOR and the contractor.

3.16 Immediately after hull penetrations are submerged but before the craft lifts off of the blocks, stop flooding the drydock. Accomplish a watertight integrity check of contractor work affecting watertightness of the hull or hull penetrations below the water level in company with the SUPERVISOR. Continue flooding of the dock when directed by the

SUPERVISOR.

3.17 Submit one legible copy, in hard copy or approved transferrable media, of completed Docking Report, NAVSHIPS Form 9997/1 (Rev 11-80) 9997/2 through 9997/4 (Rev 11-77) to the SUPERVISOR within ten days after undocking. If the information block entitled "Position Number This Docking" cannot be completed, prepare sketch, both plan and elevation views, showing the positions of the blocking in relation to the hull and include the sketch as part of the Docking Report.

3.18 Should the contractor choose to lift the craft in lieu of a more conventional docking method the following additional items should be clarified and submitted as a deviation to the SUPERVISOR:

3.18.1 Submit a material condition and verification by an accredited independent engineering firm that the crane, lifting device, lifting gear, cradle, slings and spreaders that are required, meet the existing criteria by OSHA and can safely lift the craft.

3.18.2 Submit a general site description of the lifting route for the drydocking. The allowable soil pressures and method of distributing soil loading shall be provided.

4. NOTES:

4.1 Blocking material/construction requirements.

4.1.1 The term "hardwood" for the purpose of this work item

includes: White Oak, California Laurel, Oregon Myrtle, Iron Wood, Blue Gum, American Rock Elm or preserved Red Oak.

4.1.2 The normal life span for hardwood blocking is about 10 years.

Nevertheless, blocking showing evidence of excessive crushing, warping, cracking, checking, rotting or damage from dogging, loss of contact at edges caused by checking and unequal shrinkage or deterioration to an extent of no longer being capable of supporting a prescribed load over full bearing areas is not acceptable and shall be replaced.

4.1.3 Woods acceptable for use as soft caps are: Douglas Fir, Tamarack, Long Leaf Pine, or Hemlock.

4.1.4 Composite blocking showing evidence of spalling and cracks or chipped and damaged concrete is not acceptable.

4.2 Routine drydocking and undockings shall not be scheduled on a Federal Holiday or long weekend associated with Federal Holidays, i.e.:

5 of 5 ITEM NO: 997-004

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

King's Birthday, Washington's Birthday, Memorial Day, Fourth of July, Labor Day, Columbus Day, Veteran's Day, Thanksgiving Day, Christmas Day and New Year's Day. If the contractor elects to drydock or undock the craft on any other weekend, a request shall be submitted to the SUPERVISOR at least 3 working days in advance in writing.

4.3 NAVSEA Forms 9997/1 through 9997/5 are available from the SUPERVISOR upon request. The SUPERVISOR's designated representative is responsible for forwarding an electronic copy of the report required in 3.17 to NAVSEA Code 04XQ representatives at: weiserrt@navsea.navy.mil and ruplegn@navsea.navy.mil

5. GOVERNMENT FURNISHED MATERIAL (GFM):

5.1 LLTM:

1. None.

5.2 PUSH MATERIAL:

1. None.

5.3 KITTED MATERIAL:

TOTAL

QUANTITY

PROVIDED NAME Of PART

PIECE

NO.

REF

NO.

NATIONAL

STOCK

NO.

REQ

PARA NO.

1. 1 EA

NAVSEA Forms 9997/1 through 9997/5 3.17