Amendment 00005 Tank Cleaning Plan.pdf

270B_WMEC_0220

270’ WMEC B CLASS FLUID

HANDLING PLAN FOR TANK

INSPECTIONS

D-123-2049

270’ WMEC B CLASS

FLUID HANDLING PLAN FOR TANK INSPECTIONS

INTRODUCTION

This fluid handling plan facilitates tank inspections of the 270’ WMEC B Class while maintaining acceptable stability. It documents the stability criteria that is used, lists the tanks and periods of inspection, recommends tank conditions upon arrival, and then describes the fluid handling plans for DS2-A and DS2-B availabilities.

Pages 9 and 10 present a table depicting the tank conditions at the various steps and the last page can be used to quickly determine which tanks are to be inspected during either of the two availabilities.

TABLE OF CONTENTS

Introduction

Stability Criteria During Tank Inspection

270’ WMEC A Class Tank Inspection Periods

Tank Conditions Upon Arrival

Fluid Handling for the DS2-A Availability

Fluid Handling for the DS2-B Availability

Final Note

TABLE 1: Depiction of Tank Conditions at Various Steps

TABLE 2: Tanks to be Inspected During DS2-A and DS2-B Availabilities

STABILITY CRITERIA DURING TANK INSPECTIONS

The intact stability criteria are IAW U.S. Navy Design Data Sheet, DDS 079-1 (1975), modified as follows:

Beam winds - 60 knots Rollback Angle - 20 degrees.

The damage stability criteria are IAW DDS 079-1 (1975), modified as follows:

Maximum Heel – 20 degrees Margin Line Immersion Allowed.

Cosine reduction to Righting Arms – 0.04Cosine(theta) Rollback Angle – 80% of the DDS 079-1 value.

Because the above criteria differ from that used by the cutter’s FCCS Database, Operators should not use FCCS to evaluate the stability during the tank inspection period.

270’ WMEC B CLASS TANK INSPECTION PERIODS

There will be two Availabilities over 96 months, DS2-A and DS2-B, that will result in all of the tanks being inspected with the exception of the lube oil storage, hydraulic oil storage, and CPP Sump tanks. Some tanks are inspected each availability; others are inspected only once, and the lube oil storage, hydraulic oil storage, and CPP Sump tanks are inspected on a conditional basis. The following tank inspection periods apply:

Tanks Having an Inspection Period of 48 Months:

4-165-3-F DO SERVICE

4-165-4-F DO SERVICE

2-228-1-F EMERGENCY GENERATOR SERVICE

4-165-1-F WASTE OIL

4-169-1-F OILY WASTE

3-190-1-J JP-5 SERVICE

3-190-2-J JP-5 SERVICE

4-186-1-J JP-5 DRAIN

3-78-1-W POTABLE WATER

3-78-2-W POTABLE WATER

4-94-1-W FEED WATER

3-B-0-W SALT WATER BALLAST

4-75-1-W SALT WATER BALLAST

4-75-2-W SALT WATER BALLAST

4-103-1-W SALT WATER BALLAST

4-103-2-W SALT WATER BALLAST

4-169-0-W SALT WATER BALLAST

4-228-1-W SALT WATER BALLAST

4-228-2-W SALT WATER BALLAST

4-242-0-W SALT WATER BALLAST

SEWAGE

Tanks Inspected on a Conditional Basis:

3-165-2-F LUBE OIL

4-162-0-F HYDRAULIC OIL

4-162-1-F CPP SUMP (HO)

4-162-2-F CPP SUMP (HO)

Tanks Having an Inspection Period of 96 Months:

4-26-1-F DIESEL OIL STORAGE

4-26-2-F DIESEL OIL STORAGE

4-47-1-F DIESEL OIL STORAGE

4-47-2-F DIESEL OIL STORAGE

4-82-0-F DIESEL OIL STORAGE

4-82-1-F DIESEL OIL STORAGE

4-82-2-F DIESEL OIL STORAGE

4-103-0-F DIESEL OIL STORAGE

4-207-0-F DIESEL OIL STORAGE

4-207-1-F DIESEL OIL STORAGE

4-207-2-F DIESEL OIL STORAGE

4-96-0-F DIESEL OIL OVERFLOW

4-165-2-F DIESEL OIL OVERFLOW

4-190-1-J JP-5 STORAGE

4-190-2-J JP-5 STORAGE

4-186-2-J JP-5 OVERFLOW

TANK CONDITIONS UPON ARRIVAL

When the cutter arrives in port the tanks should be loaded in a manner that allows tank inspections and avoids added costs.

Diesel Oil Tanks:

If DO Overflow Tanks (4-96-0-F and 4-165-2-F) are not empty the DO that is in them should be transferred into 4-82-0-F prior to arrival.

For the DS2-A availability: The cutter should arrive with the total diesel oil aboard between 70 and 74% of the full load amount, which corresponds to between 173.8 and 183.7 LT of diesel oil. The 70% loading occurs when the cutter is in Step 6 of the liquid loading instructions (described on DCB Page II(a)7) having the Diesel Oil Service Tanks 4-165-3 & 4-F at 50% capacity, 4-26-1 & 2-F and 4-207-0-F emptied, the EG Service Tank 2-228-1-F at 95%, and with 4-82-0-F being used and nearly empty. When 4-82-0-F is just starting to be used and is near 95% of capacity the total fuel aboard is 74% of the full load amount.

If for the DS2-A availability the cutter arrives with more than 184 LT of diesel oil the excess amount should be offloaded.

For the DS2-B availability: The cutter should arrive with the total diesel oil aboard between 70 and 71% of the full load amount, which corresponds to between 173.8 and 176.3 LT of diesel oil. The 70% diesel oil loading occurs when the cutter is in Step 6 of the liquid loading instructions (described on DCB Page II(a)7) having the Diesel Oil Service Tanks 4-165-3 & 4-F at 50% capacity, 4-26-1 & 2-F and 4-207-0-F emptied, the EG Service Tank 2-228-1-F at 95%, and with 4-82-0-F being used and nearly empty. When 4-82-0-F is at 25% capacity the total diesel oil aboard is 71% of the full load amount.

If for the DS2-B availability the cutter arrives with more than 176.3 LT of diesel oil the excess amount should be offloaded. [Note: With 176.3 LT of DO aboard, there will be only 6 LT of available capacity remaining in the DO Overflow Tanks after the Round 3b DO transfers.]

Ballast Tanks: Per the Damage Control Book liquid loading instructions, ballast tank 4-75-1 & 2-W and 4-169- 0-W are pressed full before the cutter reaches Step 6 of the instructions. These ballast tanks must be pressed full upon arrival.

All of the other ballast tanks (3-B-0-W, 4-103-1 & 2-W, 4-228-1 & 2-W, and 4-242-0-W) should be empty.

Fresh Water Tanks: The fresh water tanks (3-78-1 & 2-W and 4-94-1-W) can be at any normal operating loading.

JP-5, Lube Oil, Hydraulic Oil, CPP Sump, Waste Oil, Oily Waste, and Sewage Tanks: The JP-5 Service Tanks (3-190-1 & 2-J) should be full upon arrival. The JP-5 Storage (4-190-1 & 2-J), JP-5 Overflow (4-186-2-J), JP- 5 Drain (4-186-1-J), Lube Oil (3-165-2-F), Hydraulic Oil (4-162-0-F), CPP Sump (4-162-1 & 2-F), Waste Oil (4-169-1-F), Oily Waste (4-165-1-F), and Sewage Tanks can be at any normal loading upon arrival.

FLUID HANDLING FOR THE DS2-A AVAILABILITY

The following guidance will maintain acceptable stability, trim, and list during the tank inspection period of the DS2-A availability. Operators should adjust loadings aboard when necessary to prevent the list from exceeding approximately one degree, and/or to prevent trim from exceeding approximately 1 foot by the bow or 3 feet by the stern.

The following discussion assumes that the ship arrives during Step 6 of the liquid loading instructions, with between 70 to 74% of the full load amount of diesel oil aboard as described previously (TANK CONDITIONS UPON ARRIVAL). During the DS2-A availability the diesel oil will be transferred between tanks two different times. The SW ballast water will be transferred between the clean ballast tanks once. All of the other tanks must be emptied and filled as described below to allow inspections and maintain stability.

The DS2-A availability consists of three rounds of tank inspections. A table is provided on page 9 and 10 which depicts the tank loadings at various steps of the fluid handling plan.

Do not begin tank inspections for any round until after all the specified (DO, JP-5, LO, HO, FW, & SWB) tank loading adjustments have been completed. Do not begin any tank loading adjustments until after the tank inspections have been completed for the current round.

ROUND 1a (DS2-A)

The following Diesel Oil and Clean Ballast tanks are empty upon arrival and are to be inspected in the first of three rounds of tank inspection during the DS2-A availability.

Round 1a Inspections:

4-26-1 &2-F DO Storage 4-207-0-F DO Storage 4-96-0-F DO Overflow 4-165-2-F DO Overflow 3-B-0-W Clean Ballast 4-103-1 & 2-W Clean Ballast 4-228-1 & 2-W Clean Ballast 4-242-0-W Clean Ballast

ROUND 2a (DS2-A)

After the Round 1a tank inspections are complete:

Diesel Oil Tanks - Transfer diesel oil from 4-165-3 & 4-F (Service), and 2-228-1-F (EG Service) into 4-82-0-F and, if needed, into 4-207-0-F. The Diesel Oil Service and Emergency Generator Service Tanks are now empty.

Ballast Tanks - Transfer the SW Ballast from 4-75-1 & 2-W and 4-169-0-W into 4-103-1 & 2-W. This empties 4-75-1 & 2W and 4-169-0-W.

JP-5 Tanks - Empty the JP-5 Storage (4-190-1 & 2-J), JP-5 Overflow (4-186-2-J), JP-5 Service (3-190-1 & 2- J), and JP-5 Drain (4-186-1-J) Tanks.

Lube Oil, Hydraulic Oil, and CPP Sump Tanks – These tanks are not inspected on a recurring basis. Empty the Lube Oil (3-165-2-F), Hydraulic Oil (4-162-0-F), and CPP Sump (4-162-1 & 2-F) tanks as applicable.

After the Round 2a tank loading adjustments have been completed inspect the following tanks.

Round 2a Inspections:

165-3 & 4-F DO Service 2-228-1-F Emer Gen Service 4-75-1 & 2-W Clean Ballast 4-169-0-W Clean Ballast 4-190-1 & 2-J JP-5 Storage 4-186-2-J JP-5 Overflow 3-190-1 & 2-J JP-5 Service 4-186-1-J JP-5 Drain

The following tank inspections are condition based and may be included in round 2a inspections as needed:

3-165-2-F Lube Oil 4-162-0-F Hydraulic Oil 4-162-1 & 2-F CPP Sump

ROUND 3a (DS2-A)

After the Round 2a tank inspections are complete:

JP-5 Tanks - Fill the JP-5 Storage (4-190-1 & 2-J) and JP-5 Service (3-190-1 & 2-J) tanks to 95%. This is necessary to improve the cutter’s stability for the Round 3a tank inspections.

Lube Oil, Hydraulic Oil, and CPP Sump Tanks – If applicable, fill the Lube Oil (3-165-2-F), Hydraulic Oil (4- 162-0-F), and CPP Sump (4-162-1 & 2-F) to their fully loaded amounts.

Fresh Water, Waste Oil, Oily Waste, and Sewage Tanks - Empty the Fresh Water (3-78-1 & 2-W and 4-94-1- W), Waste Oil (4-165-1-F), Oily Waste (4-169-1-F), and Sewage tanks.

Diesel Oil Tanks - Prior to adjusting DO tank loading for Round 3a fill the JP-5, Hydraulic Oil, Lube Oil, and CPP Sump tanks to their full load amount and empty the Fresh Water, Waste Oil, Oily Waste, and Sewage tanks as described above. After the fore stated tank loading adjustments have been completed, transfer diesel oil from 4-47-1 & 2-F and 4-82-0-F into 4-165-3 & 4-F (Service) until full, and then 4-207-0-F until full, and then into 4-26-1 & 2-F. This empties 4-47-1 & 2-F and 4-82-0-F.

After the Round 3a tank loading adjustments have been completed inspect the following tanks.

Round 3a Inspections:

4-47-1 & 2-F DO Storage 4-82-0-F DO Storage 3-78-1 & 2-W Fresh Water 4-94-1-W Feed Water 4-165-1-F Waste Oil 4-169-1-F Oily Waste Sewage Tanks Sewage

Completion of DS2-A Availability

After all of the tank inspections of the DS2-A availability are completed, load the diesel oil tanks to either the Full Load amount or a lesser amount consistent with the fuel consumption sequence of the liquid loading instructions, and fill the Fresh Water tanks. Offload any excess saltwater ballast after the cutter returns to sea.

FLUID HANDLING FOR THE DS2-B AVAILABILITY

The following guidance will maintain acceptable stability, trim and list during the tank inspection period of the DS2-B availability. Operators should adjust loadings aboard when necessary to prevent the list from exceeding approximately one degree, and/or to prevent trim from exceeding approximately 1 foot by the bow or 3 feet by the stern.

The following discussion assumes that the ship arrives during Step 6 of the liquid loading instructions, with between 70 to 71% of the full load amount of diesel oil aboard as described previously (TANK CONDITIONS UPON ARRIVAL). During the DS2-B availability the diesel oil will be transferred between tanks three different times. The SW ballast will be transferred between the clean ballast tanks once. All of the other tanks

- except the storage tanks for JP-5, Hydraulic Oil, and Lube Oil - will be emptied to allow inspections as described herein.

The DS2-B availability will consist of three rounds of tank inspections. A table is provided on page 9 and 10 which depicts the tank loadings at various steps of the fluid handling plan.

Do not begin tank inspections for any round until after all the specified (DO, JP-5, LO, HO, FW, & SWB) tank loading adjustments have been completed. Do not begin any tank loading adjustments until after the tank inspections have been completed for the current round.

JP-5 Tanks:

JP-5 Storage (4-190-1 & 2-J) and Overflow (4-186-2-J) Tanks will not be inspected during the DS2-B availability. No change in the loading of these tanks is required other than for possible list correction.

Lube Oil, Hydraulic Oil & CPP Sump Tanks:

The Lube Oil Storage (3-165-2-F), Hydraulic Oil Storage (4-162-0-F), and CPP Sump (4-162-1 & 2-F) tanks are not inspected on a recurring basis. No change in the loading of these tanks is required unless a condition based inspection is requested.

ROUND 1b (DS2-B)

After docking complete the following tank loading adjustments:

Diesel Oil Tanks - Transfer the diesel oil from 4-165-3 & 4-F (Service) and 2-228-1-F (EG Service) into 4-82- 0-F until full, and then if needed into 4-207-0-F. The Diesel Oil Service and Emergency Generator Service Tanks are now empty.

After the Round 1b tank loading adjustments have been completed inspect the following tanks.

Round 1b Inspections:

165-3 & 4-F DO Service 2-228-1-F Emer Gen Service 3-B-0-W Clean Ballast 4-103-1 & 2-W Clean Ballast 4-228-1 & 2-W Clean Ballast 4-242-0-W Clean Ballast

Round 2b (DS2-B)

After the Round 1b tank inspections are complete:

Diesel Oil Tanks - Transfer fuel from 4-103-0-F into 4-165-3 & 4-F (Service) until full, and then into 4-82-0-F until full, and then into 4-207-0-F, and then if 4-207-0-F becomes full into 4-26-1 & 2-F. This empties 4-103- 0-F.

Ballast Tanks - Transfer the SW Ballast from 4-75-1 & 2-W and 4-169-0-W into 4-103-1 & 2-W. This empties 4-75-1 & 2-W and 4-169-0-W.

JP-5 Tanks - Empty the JP-5 Service (3-190-1 & 2-J) and Drain (4-186-1-J) Tanks.

Fresh Water, Waste Oil, Oily Waste, and Sewage Tanks - Empty the Fresh Water (3-78-1 & 2-W and 4-94-1- W), Waste Oil (4-165-1-F), Oily Waste (4-169-1-F), and Sewage tanks.

Lube Oil, Hydraulic Oil, and CPP Sump Tanks – These tanks are not inspected on a recurring basis. Empty the Lube Oil (3-165-2-F), Hydraulic Oil (4-162-0-F), and CPP Sump (4-162-1 & 2-F) tanks as applicable.

After the Round 2b tank loading adjustments have been completed inspect the following tanks.

Round 2b Inspections:

4-103-0-F DO Storage 4-75-1 & 2-W Clean Ballast 4-169-0-W Clean Ballast 3-190-1 & 2-J JP-5 Service 4-186-1-J JP-5 Drain 3-78-1 & 2-W Fresh Water 4-94-1-W Feed Water 4-165-1-F Waste Oil 4-169-1-F Oily Waste Sewage Tanks Sewage

The following tank inspections are condition based and may be included in round 2b inspections as needed:

3-165-2-F Lube Oil 4-162-0-F Hydraulic Oil 4-162-1 & 2-F CPP Sump

ROUND 3b (DS2-B)

After the Round 2b tank inspections are complete:

Diesel Oil Tanks - Transfer fuel from 4-82-1 & 2-F and 4-207-1 & 2-F into 4-103-0-F until full, and then into 4-207-0-F until full, and then into 4-26-1 & 2-F until full, and then into 2-228-1-F (EG Service) until full, and then into 4-96-0-F (Overflow), and then if needed into 4-165-2-F (Overflow). During the transfers closely monitor the fullness of the DO Overflow Tanks. This empties 4-82-1 & 2-F and 4-207-1 & 2-F.

After the round 3b tank loading adjustments have been completed inspect the following tanks.

Round 3b Inspections:

4-82-1 & 2-F DO Storage 4-207-1 & 2-F DO Storage

Completion of DS2-B Availability

After all of the tank inspections of the DS2-B availability are completed, load the diesel oil tanks to either the Full Load amount or a lesser amount consistent with the fuel consumption sequence of the liquid loading instructions, and fill the Fresh Water, JP-5, Hydraulic Oil, Lube Oil, and CPP Sump Tanks to their full load amount. Offload any excess saltwater ballast when the cutter returns to sea.

FINAL NOTE

Operators with questions about stability or this Fluid Handling Plan should contact MECPL Naval Architect.

270' WMEC B CLASS FLUID HANDLING PLAN FOR TANK INSPECTIONS

1. The cutter should arrive for each availability with Diesel Oil and SW Ballasts loaded in accordance with the DCB Part II(a) liquid loading instructions with the total diesel oil aboard between 70 and 74% of the full load amount for the DS2-A availability, and between 70 and 71% of the full load amount for the DS2-B availability.

3. DO and SW Ballast is to be transferred between tanks and the other tanks are to be emptied and/or filled as specified in this Plan and illustrated below.

4. Tanks to be inspected during each of six rounds of inspections are indicated by a box labeled "EMPTY".

5. Tanks to be inspected on a conditional basis are indicated by a box labeled “conditional”.

DS2-A

AVAILABILITY

DS2-B

AVAILABILITY

ROUND 1a

ARRIVAL

ROUND 2a

ROUND 3a

ROUND 1b

ROUND 2b

ROUND 3b

DO STORAGE:

4-26-1 & 2-F EMPTY Empty Slack or Empty Empty Empty Empty or Slack Full 4-47-1 & 2-F Full Full EMPTY Full Full Full Full 4-82-0-F 72% or Less Slack or Empty EMPTY 25% or Less Full or Slack Full Full 4-82-1 & 2-F Full Full Full Full Full Full EMPTY 4-103-0-F Full Full Full Full Full EMPTY Full 4-207-0-F EMPTY Empty Full or Slack Empty Slack or Empty Slack or Full Full 4-207-1 & 2-F Full Full Full Full Full Full EMPTY

DO SERVICE:

4-165- 3 & 4-F at 50% EMPTY Full at 50% EMPTY Full Full

DO OVERFLOW:

4-96-0-F EMPTY Empty Empty Empty Empty Empty Slack or Full 4-165-2-F EMPTY Empty Empty Empty Empty Empty Empty or Slack

EMER GEN SVC:

2-228-1-F Full EMPTY Empty Full EMPTY Empty Full Continued - Next Page

Continued - Previous Page

DS2-A

AVAILABILITY

(CONT’D)

DS2-B

AVAILABILITY

(CONT’D)

ROUND 1a

ROUND 2a

ROUND 3a

ROUND 1b

ROUND 2b

ROUND 3b

CLEAN BALLAST:

3-B-0-W EMPTY Empty Empty Empty EMPTY Empty Slack 4-75-1 & 2-W at 100% EMPTY Empty at 100% at 100% EMPTY Empty 4-103-1 & 2-W EMPTY Slack Slack Empty EMPTY Slack Slack 4-169-0-W at 100% EMPTY Empty at 100% at 100% EMPTY Empty 4-228-1 & 2-W EMPTY Empty Empty Empty EMPTY Empty Empty 4-242-0-W EMPTY Empty Empty Empty EMPTY Empty Empty

FRESH WATER Full or Slack Full or Slack EMPTY Full or Slack Full or Slack EMPTY Empty 3-78-1 & 2-W & 4-94-1-W

JP-5 STORAGE Full or Slack EMPTY Full Full or Slack Full or Slack Full or Slack Full or Slack 4-190-1 & 2-J

JP-5 OVERFLOW Empty EMPTY Empty Empty Empty Empty Empty 4-186-2-J

JP-5 DRAIN Empty or Slack EMPTY Empty Empty or Slack Empty or Slack EMPTY Empty 4-186-1-J

JP-5 SERVICE Full EMPTY Full Full Full or Slack EMPTY Empty 3-190-1 & 2-J

HYDRAULIC OIL Full or Slack conditional Full Full or Slack Full or Slack conditional Full or Slack

4-162-0-F

CPP SUMP Full or Slack conditional Full Full or Slack Full or Slack conditional Full or Slack 4-162-1 & 2-F

WASTE OIL & OILY WASTE Slack Slack EMPTY Slack Slack EMPTY Empty 4-165-1-F & 4-169-1-F

LUBE OIL Full or Slack conditional Full Full or Slack Full or Slack conditional Full or Slack 3-165-2-F

SEWAGE Slack Slack EMPTY

Slack Slack EMPTY Empty

270' WMEC B Class

Tanks to be inspected during DS2-A and DS2-B Availabilities

DS2-A Availability DS2-B Availability

4-26-1 & 2-F Diesel Oil Storage 4-82-1 & 2-F Diesel Oil Storage 4-47-1 & 2-F Diesel Oil Storage 4-103-0-F Diesel Oil Storage 4-82-0-F Diesel Oil Storage 4-207-1 & 2-F Diesel Oil Storage 4-207-0-F Diesel Oil Storage

4-165-3 & 4-F Diesel Oil Service 4-165-3 & 4-F Diesel Oil Service

4-96-0-F Diesel Oil Overflow

4-165-2-F Diesel Oil Overflow

2-228-1-F Emer Gen Service 2-228-1-F Emer Gen Service

3-B-0-W Clean Ballast 3-B-0-W Clean Ballast 4-75-1 & 2-W Clean Ballast 4-75-1 & 2-W Clean Ballast 4-103-1 & 2-W Clean Ballast 4-103-1 & 2-W Clean Ballast 4-169-0-W Clean Ballast 4-169-0-W Clean Ballast 4-228-1 & 2-W Clean Ballast 4-228-1 & 2-W Clean Ballast 4-242-0-W Clean Ballast 4-242-0-W Clean Ballast

3-78-1 & 2-W Fresh Water 3-78-1 & 2-W Fresh Water 4-94-1-W Feed Water 4-94-1-W Feed Water

4-190-1 & 2-J JP-5 Storage

4-186-2-J JP-5 Overflow

4-186-1-J JP-5 Drain 4-186-1-J JP-5 Drain

3-190-1 & 2-J JP-5 Service 3-190-1 & 2-J JP-5 Service

4-165-1-F Oily Waste 4-165-1-F Oily Waste 4-169-1-F Waste Oil 4-169-1-F Waste Oil

Sewage Sewage Sewage Sewage