FY21DD Propulsion Motor Room Tank Top Plating.pdf

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NOAA SHIP OKEANOS EXPLORER FY26 DRYDOCK REPAIR
Solicitation number
1305M225Q0151
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This document is a Nondestructive & Visual Inspection Report for the R/V Okeanos Explorer, specifically focusing on thickness measurements of the tank top plating in the IWO Propulsion Motor Room. The survey was conducted on 11/16/20 by NVI, LLC., with technician Jonathan Rosales performing the inspection. The report provides detailed measurements of the structural member, including original thickness (0.375 inches), maximum allowable diminution percentages (25%), and actual gauged diminution values for both port and starboard sides.

The plan view diagram highlights areas of substantial and excessive wastage, with orange indicating substantial wastage and red marking excessive wastage. The measurement points range from 1-57, with varying levels of material degradation. The most significant diminution percentages range from 0.3% to 41.3%, with some areas showing more extensive material loss. The report is part of a larger assessment for the NOAA Ship Okeanos Explorer FY26 Drydock Repair, suggesting this inspection is preparatory to potential maintenance or repair work on the vessel's propulsion motor room tank top plating.

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Date Of Survey:

Vessel Name:

STRUCTURAL MEMBER:

LOCATION OF STRUCTURE

Org. Org.

Thk. Thk.

In In % Port Stbd In % In % In In % Port Stbd In % In % TANK TOP PLATE 1 0.375 0.094 25% 0.218 0.220 0.157 41.9 0.155 41.3 TANK TOP PL CONT 33 0.375 0.094 25% 0.370 0.365 0.005 1.3 0.010 2.7

2 0.375 0.094 25% 0.362 0.213 0.013 3.5 0.162 43.2 34 0.375 0.094 25% 0.368 0.370 0.007 1.9 0.005 1.3 3 0.375 0.094 25% 0.243 0.251 0.132 35.2 0.124 33.1 35 0.375 0.094 25% 0.368 0.366 0.007 1.9 0.009 2.4 4 0.375 0.094 25% 0.266 0.109 29.1 36 0.375 0.094 25% 0.371 0.362 0.004 1.1 0.013 3.5 5 0.375 0.094 25% 0.373 0.220 0.002 0.5 0.155 41.3 37 0.375 0.094 25% 0.382 0.341 0.034 9.1 6 0.375 0.094 25% 0.380 0.334 0.041 10.9 38 0.375 0.094 25% 0.401 0.326 0.049 13.1 7 0.375 0.094 25% 0.366 0.374 0.009 2.4 0.001 0.3 39 0.375 0.094 25% 0.330 0.045 12.0 8 0.375 0.094 25% 0.368 0.007 1.9 40 0.375 0.094 25% 0.361 0.014 3.7 9 0.375 0.094 25% 0.372 0.003 0.8 41 0.375 0.094 25% 0.345 0.030 8.0 10 0.375 0.094 25% 0.359 0.362 0.016 4.3 0.013 3.5 42 0.375 0.094 25% 0.383 0.347 0.028 7.5 11 0.375 0.094 25% 0.368 0.216 0.007 1.9 0.159 42.4 43 0.375 0.094 25% 0.374 0.001 0.3 12 0.375 0.094 25% 0.366 0.369 0.009 2.4 0.006 1.6 44 0.375 0.094 25% 0.270 0.105 28.0 13 0.375 0.094 25% 0.209 0.166 44.3 45 0.375 0.094 25% 0.263 0.112 29.9 14 0.375 0.094 25% 0.241 0.134 35.7 46 0.375 0.094 25% 0.271 0.104 27.7 15 0.375 0.094 25% 0.240 0.135 36.0 47 0.375 0.094 25% 0.370 0.005 1.3 16 0.375 0.094 25% 0.232 0.143 38.1 48 0.375 0.094 25% 0.364 0.011 2.9 17 0.375 0.094 25% 0.267 0.108 28.8 49 0.375 0.094 25% 0.369 0.346 0.006 1.6 0.029 7.7 18 0.375 0.094 25% 0.241 0.134 35.7 50 0.375 0.094 25% 0.376 0.344 0.031 8.3 19 0.375 0.094 25% 0.220 0.155 41.3 51 0.375 0.094 25% 0.341 0.034 9.1 20 0.375 0.094 25% 0.236 0.139 37.1 52 0.375 0.094 25% 0.360 0.337 0.015 4.0 0.038 10.1 21 0.375 0.094 25% 0.374 0.368 0.001 0.3 0.007 1.9 53 0.375 0.094 25% 0.348 0.027 7.2 22 0.375 0.094 25% 0.381 0.366 0.009 2.4 54 0.375 0.094 25% 0.354 0.021 5.6 23 0.375 0.094 25% 0.345 0.346 0.030 8.0 0.029 7.7 55 0.375 0.094 25% 0.346 0.029 7.7 24 0.375 0.094 25% 0.338 0.350 0.037 9.9 0.025 6.7 56 0.375 0.094 25% 0.345 0.352 0.030 8.0 0.023 6.1 25 0.375 0.094 25% 0.349 0.353 0.026 6.9 0.022 5.9 57 0.375 0.094 25% 0.360 0.366 0.015 4.0 0.009 2.4 26 0.375 0.094 25% 0.347 0.028 7.5 27 0.375 0.094 25% 0.356 0.346 0.019 5.1 0.029 7.7 28 0.375 0.094 25% 0.338 0.037 9.9 29 0.375 0.094 25% 0.354 0.358 0.021 5.6 0.017 4.5 30 0.375 0.094 25% 0.351 0.024 6.4 31 0.375 0.094 25% 0.362 0.351 0.013 3.5 0.024 6.4 32 0.375 0.094 25% 0.346 0.346 0.029 7.7 0.029 7.7

Technician JONATHAN ROSALES, ASNT II NVI, LLC. ABS Cert. No. 18-HOM-3583568-A COUNT:

Operator's Signature ABS Surveyor's Signature

NONDESTRUCTIVE & VISUAL INSPECTION, LLC.

11/16/20 VT MARINE PAGE 1 OF 1

Report on THICKNESS MEASUREMENTS

R/V OKEANOS EXPLORER Class Identity No. IMO: 8835114; L 224' X B 43' X DR 17' Report No. UT-321-0500

TANK TOP PLATING

IWO PROPULSION MOTOR ROOM, SUSPECT AREA

Maximum Maximum Allowable Gauged Diminution Diminution Allowable Gauged Diminution Diminution

DESCRIPTION Diminution Port Stbd DESCRIPTION

Diminution Port Stbd

File details come from the government source that posted it. Updated .