Attachment J-9 - NAVSEAINST 4740.12 CVN Tow Specification.pdf

DEPARTMENT OF THE NAVY

NAVAL SEA SYSTEMS COMMAND

1333 ISAAC HULL AVENUB

WASHINGTON NAVY YARD DC 20376-2101

IN ABPWY RBP'BR TO

NAVSEAINST 4740 . 12

ser oocj140

12 JUN 12

NAVSEA INSTRUCTION 4740.12

From: Commander, Naval Sea Systems Command

Subj: TOWING AND PREPARATION FOR STORAGE SPECIFICATION FOR

INACTIVATED DEFUELED NUCLEAR POWERED AIRCRAFT CARRIERS

Ref:

Encl:

(a) OPNAVINST 4740.4

(b) u.s. Navy Towing Manual

(c) OPNAVINST 4770.5

(d) Naval Ships' Technical Manual, Chapter 050

(1) Minimum Required Tow Equipment (Appendix A)

(2) Fast Reaction Damage Control Drawing and Information

Package Contents (Appendix B)

(3) Sample Towing Certificates/Correspondence (Appendix C)

1. Purpose. This instruction implements reference (a) requirements and supplements reference (b) guidance to account for the unique requirements inherent in preparing inactivated defueled nuclear powered aircraft carriers (CVNs) for open ocean tow. This instruction amplifies the reference (c) requirements for inactivation as they apply to towing and storage as well as providing requirements similar to the reference (d) requirements for safe storage following the tow.

2. Original Issue. This is the original issue for an instruction to tow an inactivated defueled nuclear powered aircraft carrier.

3. Background. USS ENTERPRISE (CVN 65) will be the first nuclear powered carrier to be inactivated with USS NIMITZ (CVN 68) to be inactivated a decade later. Therefore, this instruction is written for CVN 65 with an update for CVN 68 Class planned after experience is gained with CVN 65 tow. Defueling and inactivation of CVN 65 is programmed for Newport News Shipbuilding with subsequent towing to Puget Sound Naval Shipyard and Intermediate Maintenance Facility in Bremerton, Washington for reactor compartment disposal and recycling. Waterborne storage may occur in either the Norfolk, Virginia or the Puget Sound, Washington Inactive Nuclear Ship Storage Facilities. The Panama Canal is presently planned for an expansion which may accommodate an

NAVSEAINST 4740.12

inactivated CVN 65 with limited structure removal. Requirements for transiting the Panama Canal under tow are reserved pending finalization of the Canal expansion.

4. Discussion. This instruction provides the technical requirements necessary for preparing an inactivated defueled CVN 65 for open ocean towing from Norfolk, Virginia to Bremerton, washington. This instruction provides guidance for preparation and towing of CVN 65 based on a comparable submarine instruction (NAVSEAINST 4740.9), cancelled nuclear powered cruiser towing instruction (NAVSEAINST 4740.10), experience towing CVs, engineering efforts, and lessons learned. This instruction also provides non-industrial towing requirements and samples of selected administrative requirements.

5. Applicability. This instruction is applicable to open ocean tow of CVN 65 following defueling and inactivation. Applicability of this instruction will be extended to CVN 68 Class subsequent to CVN 65 towing lessons learned.

6. Precedence and Deviations. Should there be a conflict between this instruction and reference (b) or (c), this instruction, as the amplifying document, shall take precedence. Deviations from the requirements of this instruction require prior approval of

NAVSEA (PMS 312/05V/OOC/08).

7. Action. Commander, Naval Sea Systems Command (COMNAVSEA) actions are delineated below:

a. Program Office for Aircraft Carriers (PMS 312). PMS 312, in conjunction with SEA ooc, SEA 05V, SEA 08, will provide technical requirements and programmatic guidance within the scope of this instruction for establishing satisfactory material condition for readiness for tow of defueled nuclear powered aircraft carriers. This includes the requirements contained in this instruction as well as other pertinent requirements not contained in this instruction.

b. Deputy Commander for Nuclear Propulsion (NAVSEA 08).

Provides any special requirements beyond the scope of this instruction to ensure safety and security of the tow. Naval Reactors Representatives will act as the Deputy's local representatives in this regard, including on scene inspections to ensure the ability to safely conduct the tow.

c. Supervisor of Shipbuilding, Newport News. Direct the Inactivation Shipyard in inactivating and defueling CVN 65 for tow rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text June 12 2012 rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text as authorized in the CVN 65 Inactivation Availability Work Package. Direct the CVN 65 Hull Planning Yard (HPY) to accomplish design studies as authorized by PMS 312/SEA osv.

d. Tow Design Agency. Design a tow rig as authorized by PMS

312/SEA OOC.

Distribution:

SNDL FKA1G COMNAVSEASYSCOM (OOC (10), OS, OSP, OSV, 08(5}, 09,

09A11 (5) ,09A115 (12), NRRO (Newport News, NORVA, BREM), 92, 92T (5), 312(3}, 392 (3})FKP7 NAVSHIPYD and IMF PUGET SOUND, NAVSHIPYD

NORFOLK FKP8 SUPSHIP NEWPORT NEWS VA

Copy to:

SNDL A3 CNO

BS USCG

22A1 COMSECONDFLT (LANTFLT)

22A2 COMSEVENTHFLT (PACFLT)

24A COMNAVAIRFOR SAN DIEGO CA

24D COMNAVSURFOR SAN DIEGO CA

24D1 COMNAVSURFLANT NORFOLK VA

24D2 COMNAVSURFPAC SAN DIEGO CA

FKP7 NAVSHIPYD NORFOLK VA

A1J1P PEO SHIPS WNY DC

A1J1Q PEO CARRIERS WNY DC

28K1 COMSUBFOR NORFOLK

FKP26 SUBMEPP PORTSMOUTH NH

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June 12 2012

LOCATOR CROSS REFERENCE SHEET

Subj: TOWING AND PREPARATION FOR STORAGE SPECIFICATION FOR

INACTIVATED DEFUELED NUCLEAR POWERED AIRCRAFT CARRIERS

See :

(Show where this instruction is filed.)

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RECORD OF CHANGES

CHANGE

DATE

TITLE AND/OR

ENTERED BY

NUMBER BRIEF DESCRIPTION

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TABLE OF CONTENTS

SECTION PAGE

INTRODUCTION

SECTION 1 SHIPYARD REQUIREMENTS

1. Tow Modifications

a. Primary and Secondary Tow Modifications

b. Towing Padeyes

c. Primary Tow Pendant

d. Secondary Tow Pendant

e. Tow Pendants Weak Links

f. Tow Pendants Inspection

g. Control Surfaces

h. Anchor System

i. Quarters j . Diesel Generator and Electrical System Design

k. Towing Equipment Storage Compartments

1. Navigation Lights and Day Shapes

m. Stern Tow Assist

n. Mooring and Docking Lines

0. Ship Configuration for Tow

2. Hull Integrity

a. Access Closures and Watertight Integrity

b. Hull Blanking

c. Hull and Compartment Integrity Valves

d. Nuclear Reactor Plant

e. Tanks and Piping Systems

f. Access Cuts

g. Flooding Alarm System

h. Dewatering System

3. Personnel Safety

a. Ship Access and Access Safety

b. Fire Safety and Cleanliness

c. Fire Alarm and Fire Fighting Capabi l ity

d. Interior Lighting i rhnona.johnson

4. Ship 1 s Stability

a. Undocking

b. Inclining Experiment and Ballasting for Tow

c. Compartment Flooding Matrix

d. Draft Marks

5. Nuclear Reactor Plant and Related Requirements

a. Reactor Plant Penetrations

b. Reactor Compartment Air Test

c. Reactor Compartment Fire and Flooding Related

Systems

d. Reactor Compartment Hull Valve Checks

6. Fabrication

7. Ship 1 s Records

a. Selected Record Drawings (SRD)

b. Fast Reaction Damage Control Drawing and

Information Package

8. Final Pre-Tow Checks

a. Flooding Alarm System

b. Fire Alarm System

c. Diesel Generators

d. Navigation Lights and Day Shapes

e. Firef ighting System

f. Dewatering System

g. Ships Lighting

h. Tank Sounding Tubes

9. Technical Information Submission Requirements

10. Tow Certification Process

a. Phase 1 Architectural Review

b. Inactivation Shipyard Architectural Review

c. NAVSEA Architectural Review

d. Resolution of Architectural Review Discrepancies

e. NAVSEA Tow Certification

f. Custody Turnover g . Final Readiness for Tow Message ii rhnona.johnson

11. Tow Conferences

a. Preliminary Tow Conference

b. Final Tow Conference

SECTION 2 PANAMA CANAL REQUIREMENTS

1. Purpose/Application

2. Tow Modifications

3. Photographic Requirements

4. Tow Plan Requirements

a. Trans it Procedures

b. Boarding Crew Procedures c . Turnover Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 o

d. Pre-Tow inspection by Autoridad del Canal de

Panama (ACP)

5. Boarding Crew Equipment

SECTION 3 TOWING GUIDELINES

1. General Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2

2. Designated Government Agency

a. Boarding Crew Training b . Items to be Provided to OIC

3. Custody Turnover

4. Officer in Tactical Command (OTC)

5. Officer in Charge (OIC)

a. Material Accountability

b. Configuration Management iii rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson

6 . Boarding Crew

a. Boarding Crew Composition

b. Boarding Crew Quarters and Embarkation

c. Boarding Crew Equipment

7. Towing Ship and/or Towing Activity

a. Number of Tow Ships Required

b. Tow Hawser Certification

c. Tow Plan

d. Drawing Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5

e. Communication Plan

f. Certificate of Seaworthiness

g. Pre-Tow Inspection for Readiness for Sea

h. Inspection During Transit

i. Gas Free Certification

8. Escort Ship

a. Responsibilities

b. Berthing Requirements

9 . Communications

a. Tow SITREP Contents

APPENDIX A

Minimum Required Tow Equipment

APPENDIX B

Fast Reaction Damage Control Drawing and Information Package Contents

APPENDIX C

iv

Sample Custody Transfer Letter Sample Endorsement of custody Transfer Letter Sample Seaworthiness Check Off List Forwarding Letter . . . 4 Certificate of Seaworthiness Check Off List Sample Endorsement of Certificate of Seaworthiness rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson

INTRODUCTION

Ref: (a) U. S. Navy Towing Manual, SL740-AA-MAN-010

(b) NSTM 9086-BS-STM-010, Chapter 050, Readiness and Care of Inactive Ships

(c) NAVSEA T9041-AA-MAN-010/INACTSSO/AS/YRR, Maintenance

Manual for Inactive Nuclear Powered Ships and Nuclear Support Ships and Service Craft

The overall concept for recycling a nuclear carrier, specifically USS ENTERPRISE (CVN 65), involves defueling, inactivation, preparation for safe storage and preparation for transit. Following inactivation, CVN 65 will be stored in the Norfolk, Virginia area until she will be towed to Puget Sound Naval Shipyard & Intermediate Maintenance Facility (PSNS & IMF) via the new Panama Canal. At PSNS & IMF, CVN 65 will be placed in safe storage until such time as the ship can be recycled.

This instruction provides the requirements to prepare and tow a defueled inactivated nuclear carrier from the Norfolk, Virginia area to PSNS & IMF. Instructions for Panama Canal transit are reserved since the Panama Canal expansion is still in its early design stages with programmed completion in December 2015. The instruction amplifies the requirements provided in the us Navy Towing Manual, reference (a), to ensure that a carrier is properly prepared for ocean, inland waters, and Panama Canal towing. This instruction also amplifies the Safe Storage requirements provided in the Naval Ships Technical Manual (NSTM) Chapter 050 Section 9, reference (b) and is consistent with the NAVSEA Maintenance Manual for Inactive Nuclear Powered Ships and Nuclear Support Ships and Service Craft, reference (c) . Configuring CVN 65 to a safe storage configuration before the tow is intended to minimize the potential for fire or flooding. Revision of this instruction for CVN 68 Class will occur after experience is gained in the CVN 65 tow.

An inactivated CVN will be manned by the Officer in Charge (OIC) and Boarding Crew for all in-land portions of the tow.

They will be provided special containerized quarters for short term habitation located on the hangar deck. The inactivated carrier will generally be unmanned for the ocean portions of the tow with the OIC and Boarding Crew riding on the escort ship.

For inspections, repairs, and in case of emergencies, personnel can be moved to and from the carrier by small boat or helicopter. For tow operations, two tow ships, each capable of rhnona.johnson independently towing the carrier, must be on station. The requirement for two tugs on station is intended to provide redundant tug capability and to avoid the need to enter a non Panamanian foreign port.

The entire tow duration from the Norfolk area to PSNS & IMF should be approximately 50 days or less by the Panama Canal route.

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SECTION 1 SHIPYARD REQUIREMENTS

Ref : (a) (b)

U. S. Navy Towing Manual, SL740-AA-MAN-010 NSTM S9086-UU-STM-10, Chapter 613, Wire and Fiber

Rope and Rigging

(c) NSTM S9086-TV-STM-010, Chapter 581, Anchoring

(d) COMDTINST M16672 . 2 (Series), Navigation Rules:

International - Inland

(e) General Specifications for Overhaul of Surface Ships

(GSO) I NAVSEA S9AA0-AB-GOS-010/GSO

(f) NAVSEA T9041-AA-MAN-010/INACTSSO/AS/YRR, Maintenance

Manual for Inactive Nuclear Powered Ships and Nuclear Support Ships and Service Craft.

(g) NAVSEA 0994-LP-017-3010, Emergency Ship Salvage Material Catalog

(h) NSTM S9086-T8-STM-010, Chapter 593, Pollution Control

(i) NSTM 096 S9086-C6-STM-010, Chapter 96, Weights and Stability

1. Tow Modifications

a. Primary and Secondary Tow Modifications

The ship shall be configured for a bow tow by either a primary or a secondary towing system consisting of the equipment defined in this paragraph through 1.f below, and designed in accordance with reference (a) . The primary tow system shall be independent of the secondary tow system. Both the primary and secondary tow systems shall be capable of a bollard pull of 200 tons. Design drawings, inspection and certification requirements for the primary and secondary towing systems and stern tow assist of Section 1.m below shall be submitted by the Tow Design Agency to SEA ooc for approval. The Hull Planning Yard (HPY) shall provide the design ship configuration (defined by the tow characteristics listed in Appendix C, Certificate of Seaworthiness Check Off List) to PMS 312 for approval and forwarding to the Tow Design Agency.

b. Towing Padeyes

(1) The Tow Design Agency shall design primary and secondary towing padeyes per reference (a) . The primary and secondary towing padeyes shall be designed to loads approved by SEA ooc in the forward, athwartships and vertical directions. A minimum of three padeyes are required to split the tow load for rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text June 12 2012 both the primary and secondary tow rig (six total padeyes} .

This design shall be based on the yield strength of the material being used.

(2} Welds associated with both primary and secondary padeyes including all backup support structure shall be magnetic particle tested (MT} . Testing of any new primary and secondary towing padeye welds shall be performed via a static load test in accordance with the Ship's Test Program and approved by PMS 312 and applied forward, athwartships (both sides} and vertical directions for a minimum of 10 minutes. In lieu of MT, eddy current testing (ET} may be used after load testing if welds were ET inspected prior to load testing.

c. Primary Tow Pendant

(1} The Tow Design Agency shall design a primary towing pendant per reference (a) . The primary towing pendant shall consist of anchor chain attached to the primary tow padeyes with a safety shackle (nut, bolt and locking bolt with jam nuts) and detachable chain link. The first three shots of the ship's anchor chain shall not be used due to possible environmental damage. Tow pendant messenger lines shall be made of floating line. Rope, other than wire rope, should be protected against chafing.

(2} The primary towing pendant shall be inspected in accordance with reference (a) . The safety shackles (including spares}, and detachable link (including spare} for the primary tow pendant shall be previously unused and have manufacturer's proof load test certification or be pull tested and certified by the Inactivation Shipyard. Vendor "Certificate of Compliance" is not sufficient. Detachable link (s} shall be verified as forged. All forged components shall be MT inspected.

d. Secondary Tow Pendant

(1) The Tow Design Agency shall design a secondary tow pendant in accordance with reference (a) .·

(2} The secondary tow pendant shall consist of an appropriately sized shackles attached to padeyes and anchor chain of sufficient length to prevent chafing as the chain passes through the stem of the vessel. The chain shall be attached with a shackle of appropriate size to a wire rope pendant. The bitter end of the wire rope pendant, to be used by the towing vessel in an emergency, shall have a Spelter-type rhnona.johnson Typewritten Text rhnona.johnson closed socket connection fitting. A spare shackle shall be provided for connecting secondary tow pendant to towing vessel hawser.

(3) Extreme care shall be taken in securing the secondary tow pendant to the ship to prevent fouling the secondary tow pendant on the primary tow pendant, other ship structure or ship's anchor during deployment of the secondary pendant. To meet Panama Canal passage requirements the secondary tow pendant shall be located such that it will not interfere with any Panama Canal operations.

(4) Items/structures that could foul the secondary tow system during deployment shall be removed.

(5) The secondary tow pendant shall be secured to the ship side opposite the emergency anchoring system. The installation shall preclude any slack in the pendant thus reducing the probability of any continuous motion that could lead to damaged tow equipment.

(6) To facilitate retrieval of the secondary tow pendant during an emergency, a 1-5/8 inch diameter wire and 5 inch circumference polypropylene lines (or an equivalently strong and buoyant line) shall be connected to the bitter end of the heavy messenger attached to the secondary tow system. An international orange floatation buoy as specified by reference

(a) shall be attached to the bitter end of the retrieval line.

During open ocean towing, the retrieval line and buoy shall be streamed in the water aft of the fantail. During maneuvers in confined waters, such as ports and the Panama Canal, the retrieval line and buoy should be retrieved and stowed at the discretion of the OIC. Due to chafing experienced during previous tows, a spare polypropylene line and buoy will be provided. All synthetic lines shall be protected against chafing.

(7) All jewelry in the secondary pendant that may be used in towing shall be previously unused (never damaged or loaded under tow) . All secondary pendant jewelry shall have either manufacturer's proof load test certification or be pull tested and certified by the preparing activity. All forged components shall be MT inspected.

(8) The entire secondary tow system shall be designed such that the floating line and buoy can be retrieved and redeployed from the inactivated CVN.

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NAVSEAINST 4740 . 12

e. Tow Pendants Weak Links. For both the primary and the secondary tow pendants, a specific weak link component shall not be required. The tow ship towing equipment will limit tow pendant loads and be the weakest part of the towing systems.

f. Tow Pendants Insp ection. In addition to the certification requirements above, the primary and secondary pendant components shall be inspected in accordance with reference (a) to ensure absence of corrosion, pits, rust, deformation, wear, and cracks. All rope, including wire rope, should be inspected in accordance with reference (b) prior to the tow. Chain shall be inspected in accordance with reference

(c) . These inspections shall be performed and documented prior to the NAVSEA Architectural Review. Documentation shall indicate component markings. If no component markings exist, components shall be marked. Additionally, the primary and secondary pendant rig components shall be verified to be attached properly and of the same type, size, shape and/or length as shown on the drawing for open sea tow modifications as approved by SEA OOC .

g. Control Surfaces

(1) Set and lock each rudder on the inactivated carrier amidships as described in Section 5-7.6 of reference (a).

Photographs of the rudder locks shall be taken.

(2) The two inboard propellers shall be removed. The associated stern and tail shafts can be removed and shaft blanks installed if desired for weight removal. The two outboard propellers and associated shafts shall be left installed and locked as described in Section 5-7 of reference (a) . Remove remaining shaft sealing elements and install emergency packing as described in section 5-7 of reference (a) . Photographs of the shaft locks and shaft blanks shall be taken.

h. Anchor System. The details of anchor system shall be submitted by the HPY to SEA 05V for approval.

(1) One of the ship's anchors and chain not required for the tow pendants shall be removed. The other anchor and chain shall be capable of being deployed and retrieved. The associated anchor windlass brake system and capstan shall be inspected for proper operation. Any discrepancies found shall be corrected.

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(2) Supervisor of Shipbuilding, Newport News shall prepare a procedure to demonstrate anchor operation. The anchor shall be tested for emergency deployment during the procedure qualification and during Boarding crew training prior to the Final Tow Conference discussed below. After training is complete, reconfigure the anchor system for deployment.

i. Quarters. An inactivated CVN will be manned by the Officer in Charge (OIC) and Boarding Crew for all in-land portions of the tow. For use during in land water towing or for casualty manning for periods up to two weeks duration, PMS 312 will fund and the Type Commander will provide the Boarding Crew special containerized quarters located on the hangar deck. The inactivated carrier will generally be unmanned for the ocean portions of the tow with the OIC and Boarding Crew riding in the Navy's escort ship. For inspections, repairs, and in case of emergencies personnel can be moved to and from the carrier by small boat or helicopter.

j. Diesel Generator and Electrical System Design. The HPY shall design and submit to SEA OSV for approval an electrical system design meeting the following:

(1) Two diesel generators shall be installed on the main deck with adequate ventilation provided. Each diesel generator shall be capable of independently providing power to retrieve the anchor and operate lighting in the towing equipment compartments, each compartment containing flood/fire alarm sensors, the anchor handling spaces and in passageways/trunks leading to these compartments. Use of LED lights in the lighting design is encouraged to reduce the size of the diesel generators required to one available in the ESSM (Emergency Ship Salvage Material) System. Use of solar panels and wind generators shall also be considered in the electrical system design.

(2) Temporary lighting, independent of the ships installed switchboards and wiring should be used. To minimize redundant work at the recycling shipyard, the HPY shall submit the lighting plan to the recycling shipyard for concurrence.

(3) The backup diesel generator shall be interconnected to the primary diesel generator via a manual bus transfer switch. The generator must have a manual starting capability to be used as a backup to its primary starting capability. The diesel generator shall be shop tested at rated capacity.

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(4) Fuel Storage. Adequate provision to store diesel fuel in a tank on the hangar deck shall be provided. The tank shall meet OSHA standards for containment and fire protection.

The amount of diesel fuel shall be sufficient for the expected tow route and expected refueling locations.

(5) Lube Oil and Consumable Storage. Sufficient diesel lube oil and other consumables deemed necessary to support operation of the diesel during the tow shall also be stored on the hangar deck or in the towing equipment storage compartments.

The storage containers shall meet OSHA standards for containment and fire protection.

(6) Training shall be provided to the Boarding Crew on the proper operation and maintenance of the diesel generators and electrical system.

k. Towing Equipment Storage Compartments. The HPY shall obtain PMS 312 approval for the following:

(1) Which ship compartments should be used for storage given the damage control equipment identified in Appendix A and elsewhere in this instruction.

(2) The location for classified and unclassified technical documentation to accompany the towed CVN discussed in Section 1.3.b(1) (a). The means of securing the space shall be recommended and provide for ease of boarding crew access (e.g., combination or push button lock) .

1. Navigation Lights and Day Shapes. The HPY shall design and submit to PMS 312 for approval a light and day shape design meeting the following sections.

(1) All lights and shapes specified in this paragraph shall meet the specific requirements of positioning, number, and color of lights contained in reference (d). Existing ship's lights shall be used to the extent practical.

(2) Provide navigation lights and day shapes for both towing and anchoring.

(3) Adequate battery power shall be provided for the towing navigation lights to provide for seven days duration assuming the lights are energized 24 hours a day. In addition, the electrical system design shall incorporate features to recharge the batteries by the diesel generator, wind generators rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson or solar panels such that the lights can be operated for twice the p redicted tow duration.

(4} The navigation lights shall be tested 24 hours before tow.

(5) Training shall be provided to the Boarding Crew on the proper operation and maintenance of the navigation and anchor light system and components. A navigation light wiring diagram shall be provided.

m. Stern Tow Assist. A means to connect an assist tug to control stern movement during tow shall be installed at the stern via a dedicated padeye. The location of this padeye shall consider ease of deployment and retrieval and ship draft in the towed condition. This system design should be included with the primary and secondary tow system design recommendation submitted to SEA OOC and be attached to a suitable connection on the stern with a certified chain, 2 ~" wire pendant, shackle and soft lead line. This system shall be capable of being retrieved and will only be used if required.

n. Mooring and Docking Lines. One complete set of mooring and docking lines including storm lines are to be retained onboard to permit ship mooring or docking as necessary at the storage facility. These mooring and docking lines shall be within expected life periodicity. During towing, these lines shall be positioned for deployment by the Boarding Crew with minimum effort.

o. Ship Configuration for Tow. Aircraft elevators shall all be in the up locked position and a restraining beam welded in place. The aircraft elevator deck edge doors shall be closed. Divisional doors must be locked in the open or shut position or can be removed to lessen ship weight.

2. Hull Integrity

a. Access Closures and Watertight Integrity

(1) All access closures in main watertight subdivision bulkheads and weather decks shall be operational and shall be closed and/or dogged shut during the tow. The access closures in main watertight subdivision bulkheads on the main deck and below shall be chalk tested in accordance with reference (e), Section 192, to verify proper seal. In addition, any access closure exposed to the weather shall be water hose tested in rhnona.johnson

NAVSEAINST 4740 . 12

accordance with reference (e), Section 192, to verify tightness.

A recommendation identifying all required closures (except the Reactor Compartments) to be tested, method of testing, towing configuration and the post availability watertight configuration changes shall be submitted by the HPY to SEA 05V for approval.

Accesses which allow boarding crew access to the flight deck and island house during tow shall be left closed but unsecured. All other watertight access closures throughout the ship shall be closed and/or dogged shut during the tow with the exception of any accesses specified to be left open to improve stability in the event of a flooding casualty. Those doors and hatches that are not required for normal access shall be sealed and marked "SEALED-DO NOT OPEN". In general, Material Condition Zebra should be set for second deck and below and Circle William for hangar deck and above. The main deck should function as a watertight division and all hatches between main and second deck should be shut. Fire Zone Boundaries (FZBs) for second deck and below are set by Condition Zebra. FZBs above the second deck to the flight deck shall be vertically above the forward bulkhead of Hangar Bay 1, Divisional Door(s), aft bulkhead of Hangar Bay 2.

(2) All tank and void manholes shall be secured during the tow.

(3) All bilges are dry and free of oil and water.

(4) All openings exposed to the weather, including all weather decks and any transverse or longitudinal bulkheads, shall be blanked throughout the length of the ship. All interior watertight subdivision bulkheads, shall have all openings blanked from the hangar bay and below. Blanking may be accomplished by either securing existing ship's equipment (e.g., flapper valves), using bolted gasketed steel blanks, or any other means that provides blanking strength equivalent to the surrounding bulkhead structure.

(5) Any open ended piping that could interconnect watertight subdivisions shall be blanked or capped.

(6) A visual inspection shall be performed on bulkheads and decks specified below to provide additional assurance that these bulkheads and decks are sealed before tow. Initial inspections may include a visual light test similar to Maintenance Requirement Card 49-W31A N. Areas of concern may require follow up with localized air tests in accordance with reference (e) Section 192 and NAVSEA Standard Item 009-25.

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(a) At a minimum the locat ions shall include:

1. Frame 62 (bounded by Holding Bulkhead (HB) #5 on each side, the hold and the underside of 3rd deck) .

2. Frame 92 (bounded by HB#5 on each side, the hold and the underside of 3rd deck) .

3. Frame 129 1/2 (bounded by HB#5 on each side, the hold and the underside of 3rd deck) .

4. Frame 138 (bounded by HB#5 on each side, the hold and the underside of 3rd deck) .

5. Frame 167 (bounded by HB#5 on each side, the hold and the underside of 3rd deck) .

(b) DC Voids and Tanks along parts of this watertight integrity boundary as listed below shall be tested for air tightness. Tanks and voids which are to be air tested, including those in sub paragraph (3) below, shall be first verified to not have known radioactive contamination.

1. Voids and Tanks that form the outboard boundary of the machinery spaces between Frames 92 and 167 at or below the tow waterline.

2. Voids and Tanks that form the outer hull between Frames 92 and 167 at or below the tow waterline.

3. Adjacent tanks and voids (inboard or outboard as appropriate) to provide watertight integrity may be substituted for selected tanks noted above as long as the inspected tanks form a continuous boundary to prevent progressive flooding.

(c) The results of the inspection shall be submitted to SEA 05V for approval.

(7) Compartment air tests are not planned. Any openings in compartment watertight bulkheads that must remain open to support towing shall be previously approved by SEA 05V (Section 1.2.a(1)) or submitted to SEA 05V for approval.

(8) The hull shall be visually inspected during dry docking and any damaged or deteriorated areas shall be rhnona.johnson ultrasonically inspected and repaired as recommended by the Inactivation Shipyard and submitted to SEA 05V for approval. A report of the hull condition shall be included in the Appendix B Fast Reaction Package.

(9) Cathodic protection will be installed in accordance with reference (f) as necessary and is not required for towing.

b. Hull Blanking

A non-nuclear hull blank design recommendation shall be submitted by the HPY to SEA 05V for approval.

(1) All hull openings blanked shall be identified (along with associated blanking design and method of identification) on either a NAVSEA approved nuclear or non-nuclear blanking drawing as applicable.

(2) All non-reactor plant hull penetrations from four feet above the ship's full load displacement waterline and below shall be blanked with steel plate welded in place over external hull openings. In addition, hull valves shall be wired shut.

This is intended to provide double boundary protection for tanks where if the hull penetration were not blanked, only single valve protection would exist to the compartment. The method of sealing non-reactor plant hull penetrations above four feet above the ship's waterline shall be identified in the recommendation.

(3) The blanks shall be designed as a minimum to withstand a 42.5 foot hydrostatic head of water. The blanks can be fabricated from steel plate equal in thickness and material type to the hull in the area where the blank is installed as long as the hydrostatic head noted above is maintained. In no case shall the blank be less than one half inch thick.

(4) All blanks covered under this paragraph shall receive a 5X VT or MT inspection after installation . All blanks shall receive a completion air test in accordance with reference (e), Section 192 to verify tightness.

(5) Certification of boundary protection for all hull openings, including reactor plant penetrations, below four feet above the waterline shall be provided by the inactivation shipyard to the towing activity.

(6) Following inspection, hull blanks shall be preserved rhnona.johnson with a 20 year paint system .

c. Hull and Compartment Integrity Valves. A recommendation listing all hull and compartment integrity valves and their towing status (blanked, wired shut, etc.) shall be submitted by the HPY to SEA OSV for approval. The recommendation shall include a method of clearly marking and numbering the valves for ease in Boarding Crew verification of the valve's location and position.

(1) All non-reactor plant hull valves remaining installed shall be in the shut position and shall be safety wired shut with multiple strand seizing wire.

(2) A list of all hull valves, including reactor plant valves, and their status (blanked, wired shut, etc.) shall be provided to the Boarding Crew. The OIC/Boarding Crew shall verify that all hull valves (except reactor compartment valves discussed below) are in the closed position and safety wired shut within one week of the tow.

d. Nuclear Reactor Plant

(1) Technical requirements for reactor plant hull penetrations/valves and non-nuclear plant hull penetrations/ valves where radioactive contamination is identified are specified in the applicable Reactor Plant Inactivation Guidelines.

(2) Valve line-ups inside the reactor compartment shall be verified prior to final closure of the reactor compartment and do not require further verification by the Boarding Crew prior to tow.

e. Tanks and Piping Systems. A recommendation listing all tanks, including reactor plant tanks, and their post availability status (ballast, empty) and a list of all sounding tubes to be checked by the Boarding Crew shall be submitted by the HPY to SEA OSV for approval.

(1) All non-reactor plant tanks, except those used for ballasting, shall be pumped to low suction with residual fluids removed using temporary pumps and hoses prior to the tow. The tanks need not be dried. Close, bolt and/or dog all tank covers to internal tanks prior to towing. Reactor plant tanks will be handled in accordance with the Reactor Plant Inactivation Guidelines.

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(2) All sounding tubes shall be capped and a list of all sounding tubes to be inspected for tow shall be provided to the Boarding Crew. All sounding tubes to be used for tow shall be clearly marked. All between tank sluice valves shall be shut.

(3) Fresh water shall be used to ballast tanks. Tanks used for long term ballasting (for tow or for ship list and trim control awaiting recycling) shall be evaluated for preservation with SEA 05V approval obtained. These tanks should be identified on the proposed ballasting report. Long term ballast tanks shall be isolated from associated piping systems by blanking and tank vents shall be left open with flash screens installed. Tanks used only for temporary ballasting required for undocking do not require preservation, provided all residual water is removed prior to towing.

(4) Each ballast tank shall be air tested separately and while dry. The tank covers shall be reinstalled following testing.

(5) All steam, freshwater, saltwater, condensate and drain piping systems shall be drained to low point and all openings shut. These non-nuclear systems should be blown down with air without system disassembly to ensure the maximum amount of water is removed from the systems.

f. Access Cuts. All deck access cuts and restoration shall be in accordance with NAVSEA approved drawings or requirements.

All hull access cuts shall be in accordance with the applicable, approved class drawing for operational ships or NAVSEA requirements.

g. Flooding Alarm System

(1) Flooding Sensors

(a) For towing, the flooding sensors shall be from "Smart Tow" sensors listed in reference (g) . Also, "Smart Tow" video cameras shall be installed in each compartment fitted with a flooding sensor.

(b) For CVN 65, flooding alarm sensors shall be installed at the following locations: Hi & Lo level sensors:

MMR#1-4, AMR#1-2, RAR#1-4, Shaft Alley #1 (7-176-3-E), Shaft Alley #4 (7-176-4-E) Hi level sensors: Shaft Alley #1 (7-167-3- E), Shaft Alley #4 (7-167-4-E), Weapons Magazine (7-83-2-M).

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(c) For towing, the low level alarm sensors shall be installed 1 foot (+/- 2 inches) from the lowest point in the compartment with the assumption that the ship is in a ballast for tow position. The high level alarm sensors shall be positioned in a location that is in as close proximity to the low level sensor as practical while maintaining a vertical height above the low level sensor of 3 feet (+/- 2 inches).

(d) For storage, the HPY, with PSNS & IMF concurrence, shall recommend to SEA OSV for approval the sensors to be used and their location.

(2) Flooding Alarms

(a) For towing, the HPY, as part of the recommendation to SEA OSV for the electrical system design, shall include an alarm panel/board in or near the containerized quarters to act as a compartment indicator. A video monitor shall be available to monitor the video cameras installed in each compartment. A wireless reference (g) "Smart Tow" data transfer system should be used which will provide the compartment flooding and fire sensor alarms and video feed to receivers on the tow ships and escort ship.

(b) For towing, the "Smart Tow" visual flood alarm lights shall be placed in a position easily visible to the towing vessel.

(c) For towing, the audible flood alarm shall be compatible with the "Smart Tow" system.

(d) For towing, the fully installed flooding alarm systems shall be tested within 72 hours of the tow using water to activate the flooding sensors.

(e) For storage, the alarm system and monitoring method shall be recommended by the HPY, with PSNS & IMF concurrence, to SEA OSV for approval.

(3) Training shall be provided to the Boarding Crew on the proper operation and maintenance of the flood alarm system.

A wiring diagram and schematic of the flooding alarm system shall be provided.

h. Dewatering System. A dewatering system is not required for ship safety given the compartmentalization of a CVN and the rhnona.johnson Typewritten Text rhnona.johnson Typewritten Text rhnona.johnson precautions taken to prevent fire and flooding during t ow.

However to be able to support potential ballasting, de ballasting and removal of some level of nuisance leakage from rain and sea spray intrusion, two sets of hydraulically driven submersible pumps shall be provided.

(1) The pumps should be from the ESSM (Emergency Ship Salvage Material) system as specified in Appendix A.

(2) The diesel powered hydraulic power units should be mounted in the hangar bay at strategic locations. Appropriate penetrations should be available in the hangar bay/second deck overhead to connect hydraulic hoses from the power units to submersible pumps in the vicinity of the machinery room escape trunks. The submersible pumps should be pre-staged on the second deck in the vicinity of the applicable escape trunks. A list of any spaces which will be accessible for dewatering and design for system installation shall be prepared by the HPY and submitted to NAVSEA OSV for approval.

(3) The hydraulically driven submersible pumps shall be operationally tested to be able to pump water overboard from the bottom of the escape trunk prior to tow. This testing shall be witnessed by the Boarding Crew.

(4) The Boarding Crew shall be adequately trained in the operation and maintenance of the pumps. The Boarding Crew shall be provided a list of spaces accessible for dewatering.

3. Personnel Safety

a. Ship Access and Access Safety

(1) Boarding

(a) Boarding will generally be by fixed rungs welded to the hull or by helicopter from the escort ship. The ladders shall be designed for safe access from a small boat and located in a position on the ship hull where overhanging structure such as sponsons will not interfere with tug superstructures in rolling seas .

(b) The design for ladder accesses should be submitted to SEA OSV for approval after details for transiting the new Panama Canal are established. Note that there may be special access requirements for a Panama Canal transit, see Section 2.

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(2) Passag eway s. All passageway s must be maintained free of tripping hazards, including pumps and non collapsible hoses, for access and personnel safety.

(3) All lifelines should be in place and in good condition. Stanchions/safety chains should be installed and operational around interior ladders, hatches, scuttles.

Handrails and ladders should be installed.

{4) All deck plates and gratings should be installed.

(5) All unattached equipment shall be secured by seizing wire to prevent movement during heavy weather.

b. Fire Safety and Cleanliness

(1) Remove all flammable and combustible items not required for the tow (e.g., paper, paint, fuel, thinners, wood, ship's records, dirt, grease, loose debris, etc.) from the entire ship including tanks, staterooms, storerooms, compartments, etc. Clean the ship before compartment close-out.

(a) Place ship's records including HM&E technical manuals which may be needed in the future in a secure centralized shipboard location easily accessible by the Boarding Crew.

(b) Following defueling operations, combustible materials from the defueling complex shall be removed, including the weapons magazines.

(2) All lube oil tanks and systems shall be pumped to low suction with residual fluids removed using temporary pumps I hoses . Lube oil systems shall be drained and flushed to the point that no low point pockets of residual oil exist and wiped to extent practical to remove sludge or other combustible material. Reduction gear sump will only be drained and hand wiped to the extent practical.

(3) All fuel tanks of every kind including ship's propulsion, storage, service, settling and JPS tanks shall be pumped to low suction with residual fluids removed using temporary pumps I hoses and cleaned to be safe for man. Tanks will be wiped down to the extent practical to remove sludge or other combustible material. Lines will be drained and flushed to the point that no low suction pockets of residual oil exist.

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Fuel transfer valves shall be wired shut.

(4) Ship's wiring. To the maximum extent possible the use of the ship's wiring should be avoided. Where it is utilized, a plan shall be provided showing the location of all energized equipment, switchboards and circuits. Any circuits with the potential to be energized should be tagged to indicate they may be energized . Any equipment or circuits which are not required but are connected to a circuit that may be energized shall be disconnected by having its leads lifted.

(5) Remove all compressed gas cylinders (for example, halon or HFP, acetylene, carbon dioxide (C02), nitrogen, oxygen, etc.) with the exception of portable C02, portable PKP and portable AFFF firefighting bottles as specified in section

1.3 . c(l). Refrigerants should be recovered in appropriate cylinders and turned in.

(6) Remove or disposition all hazardous materials including:

(a) AFFF and firefighting liquids should be removed.

Portable AFFF fire extinguishers may be retained provided they are in good working condition.

(b) Batteries should be removed except for batteries for alarms and navigation lights.

(c) Insulation and Presumed Asbestos Containing Materials (PACM) shall be in a sealed, non-friable condition.

(d) All hazardous materials and asbestos shall be removed from storerooms.

(e) No baseline inventory of known PCB sources is required for CVNs given the recycling and stowage practices at PSNS & IMF. PSNS & IMF will disposition PCB containing items.

(f) All mercury containing equipment and components shall be removed where practical. No inventory of remaining mercury containing components is required.

(7) The entire CHT System shall be cleaned in accordance with reference (h) and subsequently closed. All heads and sanitary facilities shall be clean and dry. All sinks and urinal traps shall be disposed of.

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(8) All hydraulic systems shal l be drained and subsequently closed except for systems indicated in Availability Work Packages to remain operational for PSNS & IMF. An inventory of all hydraulic systems is not required.

(9) All reefers/refrigerators shall be clean, with doors wired open or blocked at the outer edge with shoring to prevent sagging or removed and stored inside.

(10) Main space ventilation ducting shall be sealed to prevent any "chimney effect" in the event of a fire.

(11) The flight deck and ship structure shall be clean so there is no oil wash from rain.

c. Fire Alarm and Fire Fighting Capability. It is assumed that any credible fire would burn itself out before challenging the compartmentalization of a CVN. Therefore, the immediate function of the boarding crew is not to fight a major fire but to monitor the event if it occurs, ensure it is contained, and after it has burned itself out, to verify it has not compromised the watertight integrity of the ship. Since CVN 65 may be stored waterborne for a period of time in the Norfolk, Virginia area before towing, fire alarms and firefighting equipment could need to be installed in the storage condition for a period of time before transitioning to the towing configuration.

(1) There shall be portable C02 (MIL-E-24269), PKP and AFFF in designated locations throughout the ship with the locations of these fire extinguishers marked on the deck. The Inactivation Shipyard shall submit a plan showing the number and location of fire extinguishers to SEA OSV for approval.

(2) Separate fire alarm systems will be required for storage and for towing. The fire alarm system for the storage configuration shall be recommended by the Inactivation Shipyard and approved by SEA OSV. The towing fire alarm system will consider the following:

(a) Fire sensors shall be installed in the upper portion of the following spaces: MMR#1-4, AMR#1-2, RAR#1-4. In addition, fire sensors shall be located in storage spaces containing combustible material, near the diesel generators and temporary boarding crew quarters. The fire sensors shall be "Smart Tow" sensors listed in reference (g) .

(b) A wireless "Smart Tow" data transfer system rhnona.johnson shall be used which provides the compartment fire alarms and video feeds to receivers on the tow ships and escort ship.

(c) The fire alarm system shall be tested when installed and verified to be operational within 72 hours of tow.

(3) The Boarding Crew shall be adequately trained in the operation and maintenance of the fire alarm and firefighting equipment. Operating instructions for the fire alarm system shall be provided.

d. Interior Lighting. As specified in the Diesel and Electric system design section above, provide lighting to both towing equipment compartments, each compartment containing flood/fire alarm sensors, the anchor handling spaces and in passageways/ trunks leading to these compartments.

(1) When recommending the electrical system design to SEA osv for approval, the HPY should also recommend the location of portable battle lanterns to be installed on each side of selected watertight doors. These portable battle lanterns would be in select locations in the ship's main watertight subdivision bulkheads used for material condition Zebra from the hangar deck and below for emergency use. Also, these portable battle lantern should be installed on the inboard side of selected weather deck accesses.

(a) The portable battle lanterns shall be marked with reflective tape.

(b) Ensure that all battle lanterns are in proper working order by verifying the operation of these battle lanterns at installation and again within one week of the tow.

(c) Relay type battle lanterns should be removed…