Ship_Check_Supplemental_Work_items.pdf

TS GOLDEN BEAR – SUPPLEMETAL WORK LIST ITEMS FOR SHIP

CHECK – 3-1-18

Revised on 3-13-18

Item No 1 --SR No 5195086 – Pitting and wasted steel in Ballast Tanks – Repairs to same

ABS identified deficiencies found during Hull Survey. Following items to be added to the scope of work during the upcoming Drydock period

Item 1 - SRB GROWTH AND PITTING

The following tanks have been identified to have potential pitting due to SRB action or coating deficiencies.

• 5-104-1

• 5-104-2

• 6-104-1

• 6-104-2

• 6-65-2

• 5-47-1

• 6-118-1

Yard to provide the following services and repairs:

• Open tanks and provide closing of same with new gaskets and cleaned studs with thread lubricant

• Pump out any standing water and ventilate each tank to allow safe for entry and for hotwork

• Provide services of a chemist to issue a certificate for the duration of the repairs and update daily as necessary

• Provide lighting to allow work to be done in the bottom of the tank where pitting was observed

• Mechanically clean and wire brush to SP3 each SRB growth area to reveal the diameter and depth of the pitting to be inspected by ABS and USCG.

• Supply all necessary labor and materials to repair each location per directions of the local ABS and USCG

• For bidding purposes, use 10 locations with an area of 10 inch diameter and pitting less than 1/8 inch deep to be clad welded to the satisfaction of the attending surveyor. If surveyor allows, use ABS recommended plastic steel

• For bidding clean and prepare the repaired area to properly coat the repairs and adjacent damaged coating per tank blast and coat directions. Final paint to pass the MARAD Paint Technician inspections

Item 2 - In-tank Steelwork -Tank 5-65-01; Two items found during ABS - Coast

Guard inspection.

Pipe Hanger for the Emergency Fire Pump suction line broken.

• Provide all necessary labor to renew damaged hanger using 24 inch long X 1.5 inch angle bar and bolts and nuts.

• Provide services of a chemist to issue a certification for duration of the repairs

• Provide all needed lighting and ventilation and pump out and collection of standing water to gain access to job

• Remove existing damage hanger and clean up join area to SP3 and install contractor fabricated hanger by welding

• Prepare and clean and scale and coat with primer and top coat per blast and coat directions. Final paint to pass the MARAD Paint Technician inspections

Heavy pitting in the Steam-out line for the emergency fire pump seachest.

• Provide all necessary labor and materials to open and close all tanks to gain access and new gaskets and cleaned studs and thread lubricant when closing up same

• Provide all needed pump out and water collection to allow access to the tank penetration and patching work

• Remove the steam out line and add steel (by welding) to the individual tanks where the line penetrated same per local ABS directions

• Upon completion of the removal of the piping and patching of the tank clean to SP3 and provide primer and top coat per blast and coat directions. MARAD Paint Technician to approve preparation and final coating

The underside of the pipe tunnel that runs fore and aft through 5-65-01 has signs of moderate corrosion.

• Provide access to locations and ventilate and light as necessary and get Chemist to provide safe for entry certificate and keep current for as long as necessary to complete work

• Provide estimate of costs to mechanically scale and clean the locations that ABS and USCG consider necessary to have coating repaired and then coat same to same standard as other tank coatings listed in the statement of work. Paint process and final coating to meet approval of the MARAD Paint Technician

• For bidding purposes use 100 sq feet of space to scale and clean and repaint to match the same color of the present coating

• Yard is responsible for all aspects of preparation for ventilation and lighting and mechanical scaling and then painting for this item

Item No 3 -- SR No Stern Tube Lube Oil piping repairs

• When the stern tube Lube Oil tank is emptied to flush and refill with EAL oil, repairs to the piping to the filtration system installed in the shaft alley for that system is to be renewed by Yard

• Present piping is not reliable and needs to be renewed including all valves and piping

• For bidding purposes, use 25 feet of sch80 1” NPT steel pipe with 3 each ball valves (SS – renewable seat type) and 4 each 90 degree ells and 2 each tees and 3 each unions with good marine engineering support each 4-6 feet. Upon completion scale and clean and then prime and paint with a minimum of 15 mils of paint

Item No 4 – SR No MARAD contractor to install 2 circuit breakers on main board

• Yard to make accomodations to allow MARAD contracted contractor to work aboard the vessel during the drydock period to install 2 each circuit breakers under a separate contract from the drydock contract

• 3 days of black out will be necessary to safely allow the contractor to change the circuit breakers.

• Yard is to schedule the yard period to allow for the ship being without power so that other work will not be disrupted or additional accomodations will be made to provide lights and other power to do the work that will be disrupted by the black out

• Once the MARAD contractor is completed, the power will be restored and the switchboard will be available for powering up activity through out the ship.

• Yard should use this period of time to capitalize on the switchboard cleaning that is part of the statement of work that Yard is responsible for

Item No 5 – SR No 5-104-0 Fuel Tank conversion to Sewage Holding Tank

• The Overall specifications associated with the this job will be changed in the following conditions and requirements:

1. Yard’s need for hiring a naval architect or MARAD’s responsibility for supplying ABS and USCG approved prints is cancelled

2. The fuel line connection will be blanked to allow tank to be blasted and coated

3. No Butterworth system is to be installed

4. No pump and piping system is to be installed on the inlet to the tank or the outlet of the tank

5. Two connections will be fitted to the top of the tank to allow for MSD discharge into the tank and another connection for possible Chlorinated water to be added to the tank. Both connections are to be Sch 80 pipe with a 8-10inch nipple and 150psi rated flange welded to same and to the top of the tank and then blank flange bolted to same with a gasket

6. Painting and tank specifications to be left the same and special attention to be given to neutralizing the fuel that will be imbedded in the steel of the tank.

a) When tank has been certified gas free, provide for preliminary inspection for Paint Technician and COTR and Chief Mate or Chief Engineer.

b) This fuel tank will need to be gas freed then high pressure washed with a detergent in preparation for the Blast and Coat. The Paint Technician may require solvent hand cleaning as well after the high pressure wash.

c) Blasting and Coating of 5-104-0 with a coating to manage treated sewage from the MSD. No Black Water (raw sewage) is to be pumped into the new 5-104-0 Sewage Holding Tank)

d) Using abrasive grit blast, brush-off or “sweep” blast tanks internal surfaces including manhole covers to an SP-(6) standard to remove all loose paint and surface contamination and to provide a profile for paint application. Tightly adhering coatings and scale and rust may remain. Contractor shall be responsible for erection and removal of all necessary scaffolding and removal completely from vessel and facility and proper disposal of any spent blasting grit and any other trash, debris or by-products generated.

Note: This tank has been a fuel tank since delivery in 1989 and has no known coating

e) Provide the blast and coat specifications for the tank (example)

1. High Pressure wash with a detergent

2. Hand wash with a solvent if high pressure wash does not remove all hydrocarbons

3. Blast to with a full Sweep to SP6

4. Full Coat with 100% solids to 4 mils (Buff)

5. Coat with similar stripe coat (Red)

6. Coat with similar final coat (White)

f) While tanks are open for inspection and coating work, open, disassemble, service and inspect the suction and fill valve(s) Lap and blue valve discs and seats, free up and lubricate joints and linkages, renew taper and shear pins and clean, grease and re-pack penetrations. When valve parts are ready for re-assembly provide to COTR and Chief Engineer for examination and acceptance. Special attention shall be paid to renewing taper and shear pins at universals and to freeing any sticking assemblies or overstressed joints. If required renew fasteners with 316 stainless steel fasteners.

Re-assemble valve and drive assembly after Chief Engineer and/or COTR acceptance.

Hook reach-rod or valve stem back up to valve actuator and set limits and indicators according to valve manufacturers procedures. Lock all setscrews with locktite. Test and prove operation to satisfaction of COTR and Chief Engineer.

g) After grit blasting, sounding tubes, piping and striker plates within the tanks shall be inspected and a written report shall be delivered to COTR and Chief Engineer noting condition. Particular notice shall be given to blind sides of piping behind brackets and adjacent to tank internals for the presence of pitting and wastage.

h) Inspect tank ladders for condition of rails, rungs, stanchions and fasteners. Report findings to COTR along with any repair recommendations.

i) Inspect tanks for any areas of extreme corrosion or wastage. If any pitting is noted in tanks mark uniquely. If pitting is found to be 1/8 inch or deeper make special notation and provide COTR a report of findings. Pits over 1/8 inch deep will be clad welded under a separate item.

Note: Pits as described above may be suspected of being associated with microbial pitting and will be addressed as follows under a separate item. Prior to coating application in tanks all pits shall be fully cleaned out via mechanical scaling removing any remaining paint coating that exist after grit blasting. They shall be wiped clean with hypochlorite solution. After preparation and gas-freeing of adjacent spaces, they will be clad-welded and ground smooth. Coating of involved surfaces shall continue as per basic item.

j) The coating system shall be in conformance with approved MARAD/ABS coatings guidelines. Prior to the start of the work, the contractor shall obtain all pertinent manufacturers’ coating application procedures and data sheets. A paint schedule showing the type of coating for each coating system in this specification shall be provided to the COTR. Dry film thickness (millage) may vary slightly between those specified herein. It is the intent that proper millage shall be applied in accordance with products technical direction.

k) In conjunction with the contractor's supervision, application of all coating will be accomplished under the direct supervision of the coating systems manufacturers’ representative and to the satisfaction of the owner's representative (aka Paint

Technician). No application of coatings is to be made until the prepared surfaces or previously coated surfaces are accepted as ready by the coating systems manufacturers’ representative and owner's representative. The contractor is to arrange an inspection by the coating systems manufacturers’ representative, COTR and Chief mate or Chief Engineer prior to the application of any of the specified coatings.

l) Contractor shall provide instruments during all phases of this item to insure dew point and surface temperature readings are monitored. Contractor shall maintain a logbook, which shall become the property of the Owner at redelivery of the vessel.

m) Temporarily blank, mask or plug any penetrations from work areas into ship

(including but not limited to equipment, machinery, port-lights, windows, doors, manholes, scuttles, drains and vents), in order to prevent intrusion of any blasting abrasive, dirt, removed material or paint while abrasive grit blasting or spray painting is in progress and maintain such an envelope until completion of such work.

n) Prior to commencing work, contractor shall conduct a joint inspection with the

Owners Representative and Contractor's representative to verify that proper protection of all areas of the vessel and proper masking of areas not to be coated, has been satisfactory accomplished

o) Upon completion of all work to the satisfaction of the COTR and Chief Mate or Chief

Engineer, reinstall air-lift fittings, remove all equipment and materials, close up tank accesses with new gaskets, renewing any missing or damaged fasteners, and utilizing anti-seize on fasteners and tank opening flange and manhole cover flange. Leave all affected areas of the vessel as original. Any damage caused by ingress of grit, paint, or other contaminants shall be repaired/restored to satisfaction of COTR.

p) Contractor shall dispose of all grit, scale, and waste generated in the course of blasting and cleaning operations in accordance with Federal, State, and local regulations as applicable.

Suction Bell-mouth modification inside the tank----------------

Add a flanged connection of the bell-mouth to allow for access to the bottom of the tank for maintenance

Materials = Two (2) each flanges slip-on type and bolted together with a gasket- flanges to be welded to bell-mouth

Item No 6 Anit-Fouling (AF) paint to be used on the Hull of the Ship

This ship is approved for a UWILD in the water inspection between the five (5) year period between drydockings. For that reason very reliable paint products must be used for the Anti-Fouling (AF) to insure that the ship’s coating will last from 2018 to 2023 and survive the normal use and long periods when the ship is berthed in Vallejo, CA from August to April each year.

The previous AF used on the hull of this ship has been Interclene BRA 570. Yard must use a reliable paint equal to or better than this paint which has a history with commercial shipping and tanker companies to last and protect the ship’s hull of five (5) years or more

Item No 7 – Square Footage of each tank and masts

To be supplied once I get information from the ship and prints of the masts

Item No 8 – Cancelled items

300-2 – Heli Port Deck ---- cancelled

300-8 – Rudder Post Void ---- cancelled

800-1 – Switchboard cleaning -- cancelled