N6817119QXXXX_Attachment_Draft_Work_Item.doc

(T-AO)

HULL AND STRUCTURAL

2019-10-15

1.0 ABSTRACT

1.1 Provide labor, material and equipment to accomplish temporary steel repairs on Port side shell from frame 78 to 87.

1.2 REMARK: Modification of specification based on Shipcheck ( 10-15) Changes in bold.

2.0 REFERENCES/ENCLOSURES:

2.1 REFERENCES:

2.1.1 Auxiliary System, Ultra Sonic Survey Port Side Shell Frame 76 to 98.

2.1.2 NAVSEA Drawing, No. 141-6240324, 25’-0” Flat W/Shell, Unit 114, FR 86 – 98, Port

2.1.3 NAVSEA Drawing, No. 141-6240314, 25’-0” Flat W/Shell, Unit 124, FR 71 – 86, Port

2.2 ENCLOSURES:

2.2.1 Shell Expansion Frame 98 to 76_25ft flat

2.2.2 Exert Gauging Report ref. 2.1.1

3.0 ITEM LOCATION/DESCRIPTION/QUANTITY

3.1 Location:

3.1.1 Frames 78 – 88 Port, 25’ Level

3.2 Quantity:

3.2.1 Steel Shell Reinforcement Plate, 3/8” thick and 6” height: Ref. enclosure 2.2.1 and 2.2.2

3.2.1.1 Frame 88 to 87 (Bay 121):

24” (2 feet) length

3.2.1.2 Frame 87 to 86 (Bay 137):

30” (2 ½ feet) length

3.2.1.3 Frame 86 to 85 (Bay 153):

30” (2 ½ feet) length

3.2.1.4 Frame 85 to 84 (Bay 169):

30” (2 ½ feet) length

3.2.1.5 Frame 84 to 83 (Bay 185):

30” (2 ½ feet) length

3.2.1.6 Frame 82 to 81 (Bay 217):

30” (2 ½ feet) length

3.2.1.7 Frame 81 to 80 (Bay 230):

30” (2 ½ feet) length

3.2.1.8 ADD: Frame 86: Install reinforce plates 3/8” thick 4” in by 6” to frame on both sides; shell reinforced plates to welded too.

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE

4.1 Government Furnished Materials

4.1.1 None

5.0 NOTES

5.1 Performance Location: Astakos, Greece

5.2 Performance Period: To Be Determined

5.3 All sizes, dimensions and quantities provided are approximate. The Contractor shall utilize a ship check to verify all sizes, dimensions and quantities.

5.4 All steel shall be ABS approved as per ABS Rules and Regulations.

5.5 Ship to provide 440 power and LP air. Contractor to provide extensions and supplies for welding.

6.0 NOT USED:

7.0 STATEMENT OF WORK REQUIRED

7.1 Provide all labour and material, remove and replace all interferences, stage and un-stage, electrically tag out to accomplish repairs.

7.2 Gas Free:

7.2.1 Provide services of gas free chemist to certified space listed in paragraph 3.0 safe for hot work.

7.3 Insulation:

7.3.1 Ship force to remove insulation from 98 to frame 79 to accomplish repairs.

7.4 Repairs- Reinforced Plates:

7.4.1 Provide all labor, materials, services and equipment in order to install reinforced plates (RP) listed in paragraph 3.2. – Reinforces plates to installed per Bays (qty. 7). Install reinforced plate to both sides on frame listed in paragraph 3.2.1.8.

7.4.1.1 Install reinforced plates in accordance with ABS requirements. Plates to be 3/8 inch plate, 6” high with single filet welded around the perimeter, on the sides to the transverse frames, at the top to the shell plating, and at the bottom to the deck. In areas where deck plate is also wasted, we will plan to cut away (

7.4.2 Non-Destructive Testing (NDT):

7.4.2.1 Conduct NDT on all welds in the presence of the ABS Surveyor and MSCREP, in accordance with the ABS Non-Destructive Inspections Guide.

7.4.3 Paint:

7.4.3.1 Ship Force to paint reinforced plates.

7.5 All dirt and debris resulting from this work item shall be removed from the ship daily and all areas left clean and in good order.

8.0 GENERAL REQUIREMENTS: None Additional

EMBED AcroExch.Document.2015 0101 - 1

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Polygonal Line

Unit 124 6240324_D 8

Unit 114 6240314_E 9

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AUXILIARY SYSTEMS INC

PLATE THICKNESS/CORROSION SURVEY UT REPORT DRAWING

SYSTEM: Port Side Shell & Bulkheads DATE: 2 October 2019 PAGE: 4 OF 18

SHIP/HULL#: USNS Leroy Grumman (T-AO-195) WORK ITEM #: N/A PARAGRAPH #: N/A

Port Side Shell (looking outboard)

Fr 91 Fr 90 Fr 89 Fr 88 Fr 87 Fr 86 Fr 85

88 99 110 121 137 153

83 84 85 86 87 94 95 96 97 98 105 106 107 108 109 116 117 118 119 120 132 133 134 135 136 148 149 150 151 152

78 79 80 81 82 89 90 91 92 93 100 101 102 103 104 111 112 113 114 115 127 128 129 130 131 143 144 145 146 147

122 123 124 125 126 138 139 140 141 142 154 155 156 157 158

TOP

AFT FWD

BTM

= 18.75-25% Loss

= 25% + Loss

= Weld Seam

16”

4”

1”

6”

30”

Rectangle

AUXILIARY SYSTEMS INC

PLATE THICKNESS/CORROSION SURVEY UT REPORT DRAWING

SYSTEM: Port Side Shell & Bulkheads DATE: 2 October 2019 PAGE: 5 OF 18

SHIP/HULL#: USNS Leroy Grumman (T-AO-195) WORK ITEM #: N/A PARAGRAPH #: N/A

Port Side Shell (looking outboard)

Fr 85 Fr 84 Fr 83 Fr 82 Fr 81 Fr 80 Fr 79

169 185 201 217 230 246

164 165 166 167 168 180 181 182 183 184 196 197 198 199 200 212 213 214 215 216 225 226 227 228 229 241 242 243 244 245

159 160 161 162 163 175 176 177 178 179 191 192 193 194 195 207 208 209 210 211 220 221 222 223 224 236 237 238 239 240

170 171 172 173 174 186 187 188 189 190 202 203 204 205 206 231 232 233 234 235 247 248 249 250 251

TOP

AFT FWD

BTM

= 18.75-25% Loss

= 25% + Loss

= Weld Seam

16”

4”

1”

6”

30” 218 219

19-JQ-073 USNS Grumman - UT 4

19-JQ-073 USNS Grumman - UT 5