ML20198N465

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Forwards Revised Excerpts to Control of Heavy Loads Rept & Associated Justifications.Requests That Acceptability of Changes Be Reflected in Next Sser
ML20198N465
Person / Time
Site: Seabrook  NextEra Energy icon.png
Issue date: 06/04/1986
From: George Thomas
PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To: Noonan V
Office of Nuclear Reactor Regulation
References
REF-GTECI-A-36, REF-GTECI-SF, RTR-NUREG-0612, RTR-NUREG-612, TASK-A-36, TASK-OR SBN-1088, NUDOCS 8606060100
Download: ML20198N465 (17)
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Text

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2 LJ George S. Thomas Vice President-Nuclear Production June 4, 1986 New Hampshire Yankee Division SBN- 1088 T.F. B7.1.2 United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Mr. Vincent S. Noonan, Project Director PWR Project Directorate No. 5

References:

(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) PSNH Letter (SBN-887), dated October 31, 1985,

" Control of Heavy Loads: NUREG-0612 (Revised Report)", J. DeVincentis to G. W. Knighton Su'oj e ct : Control of Heavy Loads: NUREG-0612

Dear Sir:

Enclosed please find, as Attachment 1, a revision to the heavy loads report submitted in Reference (b). The description of the changes and associated justifications are provided in Attachment 2.

We request that the acceptability of the enclosed change to our' heavy loads report be reflected in the next supplement to Seabrook's SER. .

Very truly yours, IA C  %

Geor S. Thomas l

\

l Enclosures I

cc: Atomic Safety and Licensing Board Service List 8606060100 860604 PDR ADOCK 00000443 A PDR 3

Cf ' (

I P.O. Box 300 Seabrock,NH03874 Telephone (603)474-9521

_ ~ .__

l Dien3 Curran. Esquire Calvia A. Cann:g Harmon & Weiss City Manager 2001 S. Street. 5.W. City Hall i Suite 430 126 Daniel Stredt Washington D.C. 20009 -

Portsmouth. NN 03801 Sherwin B. Turk. Esq. Stephen E. Merrill. Esquire g Office of the Executive Legal Director Attorney General i U.S. Nuclear Regulatory Cossalssion George Dana 81sbee. Esquire Tenth Floor Assistant Attorney General Washington, DC 20555 Offlee of the Attorney Ceneral 25 Capitol Street Robert A. Backus. Esquire Concord. EN 03301-4397 116 Lowell Street P.O. Box 516 Mr. J. P. Nadeau Manchester. NH 03105 Selectmen's office 10 Central Road Philip Ahrens. Esquire Rye. NN 03870 Assistant Attorney General Department of The Attomey General Mr. Angle Nachiros statehouse Station M Chairsan of the Board of Selectmen hugusta. ME 04333 Town of Newbury Newbury. MA 01950 Nrs. Sandra Cavutis chairman Board of Selectmen Mr. William 8. Lord RFD 1 - Box 1154 Board of Selectmen Kannsington, NN 03827 Town Hall - Friend Street ,

Amesbury. MA 01913 l Carol S. Sneider. Esquire i Assistant Attorney Geners! Senator Cordon J. Humphrey Department of the Attorney General 1 Pillsbury Street One Ashburton Place 19th Floor Concord. EN 03301 Boston. MA 02108 (ATTN: Herb Boynton)

Senator Cordon J. Humphrey M. Joseph Flynn. Esquire U.S. Senate Office of General Counsel ,

Washington, DC 20510 Pederal Energency Management Agency g  ;

(ATTW: Tom Burack) 500 C Street SW i Washington, DC 20472 Richard A. Hampe. Esq.

Hampe and McNicholas Paul McRachem. Esquire 35 Pleasant Street Matthew T. Brock. Esquire Concord. NH 03301 Shatnes & NcEachern 25 Naplewood Avenue Donald E. Chick P.O. Box 360 Town Manager Portsmouth. WH 03801 Town of Exeter 10 Pront Street Gary W. Holmes. Esq.

Exeter. EN 03833 Holmes & Ells 47 Winnacunnet Road Brentwood Board of Selectmen Hampton, NH 03841 RFD Dalton Road' Brentwood. BH 03t33 Mr. Ed Thomas PENA Region I Peter J. Nathews. Mayor 442 John W. McCormack PO & Courthouse City Hall Boston, MA 02109 Newburyport. MA 01950 Stenley W. Knowles Chairman Board of Selectmen P.O. Box 710 North Hampton, NH 03862

SBN- 1088 ATTACHMENT 1 Revised Excerpts Seabrook Station Heavy Loads Report 9

(report pgs. 1, 7, 10, 11, 12, 13, 37, 65; Table 2.1.3(c)-1, sht. I of 5 and 5 of 5, Table 2.4. 2-1, s ht . 10 of 11, Drawing No.

9763-F-805279) 4 I

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l 1. INTRODUCTION

(

This report is in response to the NRC generic request for a review of I the control of heavy loads at nuclear power plants, as contained in '

f their letter dated December 22, 1980, and included herein (less enclosures) in Section 2 for reference. The report documents the results of a comprehensive review of the load handling operations at Seabrook Station

'{

and specifically addresses Enclosure 3 of the above letter, " Request for Additional Information on Control of Heavy Loads." The informational ()

content of the report is presented in a request / response format which )

follows the same general format of Enclosure 3. >

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(

The original issue of this report, dated September 1982, was forwarded

(

to the NRC for review by PSNH on September 24, 1982 under letter SBN-331. I

(

i Revision 1 to this report, dated May 1983, was an update prepared in response to the NRC's draft technical evaluation of the original report, date November 23, 1982, and supplemented by the NRC's letter to PSNH, dated December 28, 1982. i t

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The present Revision 2 to this report, dated October 1985, responds to the letters submitted by the NRC, dated August 31, 1983 and October 14, 1983, respectively, as well as provides additional design changes and t supplementary information which has been incorporated since Revision 1.

f Note that for the purposes of this evaluation, a heavy load is defined l<

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in accordance with NUREC-0612, as a load whose weight is greater than f l the combined weight of a single spent fuel assembly and its handling tool,i , e ? ~M g ua :e a d._. 21^^ p-4. Fo r- all b ut +ka Mawlevla.b [p i e. loa 4 :p yder h 2 t w poun A,. In W /

Crawe  % A Heik,%d,b c ase o I +%. Ma w p\o .

- Cvwe M a a, W O , w b b d oli W e4

  • 3 dMered kwilq deEL. ,& i to. A paker b %So fo""d' ,

(c) Filter cask monorail.

(d) CVCS heat exchanger service monorail.

(e) Polar gantry crane.

l 9

i (f) Boric acid batching monorail. t

/-

The spent fuel bridge and hoist, the manipulator crane and manipulator l crane auxiliary hoist and the service water strainer monorail hoist have been derated to 2100 pounds capacity to preclude inadvertent use '

of these load handling systems with heavy loads. Si*sI""II1****W" c.vinwe

  • A A" ho'it-

" Iw he&<hdn f,.- h% been clew fed -}e Er,Sofev*dtCMacih* l 8'"

f orti44c=%., of r.too/2 c.So Po ud c*yacih-).

The lifting devices for the spent fuel cask and the removable panels of -'

the pressurizer enclosure wall have not yet been designed. The design '

of these devices will be in compliance with the intent of NUREG-0612 requirements.

l t

Some exceptions have been taken to the requirements of NUREG-0612 and Enclosure 3 to the NRC letter; however, these exceptions do not reduce the reliability of the load handling operations. Alternatives in lieu of literal compliance with these requirements are discussed to ,

demonstrate their equivalency and/or adequacy.

In conclusion, load handling operations at Seabrook Station meet the intent of NUREG-0612 in regard to assuring safe handling of heavy loads identified in this report.

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-  ?

MAXIMUM \

- HANDLING DESIGN CRITICAL TAG NO. /

SYSTEM CAPACITY- LOAD (MCL) LOCATION i

] CS-CR-14A, Charging Pump 2.5/2.5/ -

2.5/2.5/ Primary

-14B,-14C Service Monorail 6.0 Tons 6.0 Tons Auxiliary )

- Hoist Building 7 7

CC-CR-15A, Component Cooling 5 Tons 2.7 Tons Primary

?

CC-CR-15B Water Pump Auxiliary b

] Service Monorail Building f/

J Hoist ,

CBS-CR-18A, Radioactive Pipe 1.65 Tons 1.65 Tons Radioactive

( l'

] CBS-CR-18B Tunnel Service Pipe Tunnel )

Monorail Hoist '

] MS-CR-25A, Main Steam and 7.5 Tons 7.5 Tons MS and FW MS-CR-25B Feedwater Pipe Pipe Chase Chase Crane i

(

a FW-CR-27 Emergency Feed 5 Tons 2.5 Tons Emergency Pump Monorail Feedwater i

~

Hoist Pump i

~ Building [ 7

, DC-CR-28A, Diesel Generator 8 Tons 8 Tons Diesel l DC-CR-28B Service Crane Generator

  • 7 Building ,

1 9 SI-CR-40A, f./ '

,, SI-CR-40B Safety Injection Pump Service 3[.1 Tons // Tons Equipment Vault (PAB) d Monorail Hoist )

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] REQUEST 2.1-2 I i

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" Justify the exclusion of any overhead ha ling system from the above category by verifying that there is sufficient physical separation from any l m load-impact point and any safety related component to permit a determination l}

J by inspection that no heavy load drop can result in damage to any system or component required for plant shutdown or decay heat removal." i T ,

o RESPONSE TO 2.1-2 o

.l The following load handling systems have been excludef from the above category because no safety related systems or components required for plant shutdown a j' or decay heat removal are located in the areas served by these overhead 1

. handling systems:

TAG NO. HANDLING SYSTEM CAPACITY 1

LOCATION 3 MM-CR-1 Turbine Building Crane 210 Ton Main Turbine

. 30 Ton Auxiliary Building MM-CR-2 Heater Bay Crane 100 Ten Main Turbine 15 Ton Auxiliary Building ES-CR-26 Cenerator Breaker Crane 5.5 Tons

> Turbine Building ,

CO-CR-29A To f. o 7045 i 29X Condenser Water Box Monorail Hoist W ns Turbine . U l

l Building 3

] ]

CW-CR-22 Circulating Water Stop Tons Service and Log. Monorail Hoist CW Pump House -

CW-CR-23 Pump House Trash Removal 1 Ton Service and Basket Monorail Hoist CW Pump House i

l PAH-CR-17 C.7$ Yen Ventilation Service A Primary Auxi-i Monorail Hoist

  • liary Building EH-CR-39 Equipment Hatch Monorail 5 Tons Primary Auxi-Hoist liary Building

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TAG NO. HANDLING SYSTEM CAPACITY LOCATION WS-CR-7 Waste Process General

> 4 tons Waste Service 80 Monorail Processing Hoist Building

> WS-CR-8 Waste Process General 4 tons Waste Service 40 Monorail Processing Hoist Building RS-CR-12 Resin Sluice Service 2 tons Waste Monorail Hoist Processing Building WS-CR-4 Solid Waste Handling 30 tons Waste Crane Processing Building AAH-CR-20 Decontamination Service 5 tons Administration Monorail Hoist and Service Building MM-CR-30 RCA Shop Crane 5 tons Administration and Service Building MM-CR-31 Training Center Annex 5 tons Training Crane 4 Center Annex id In addition, the following systems are excluded from further consideration since they do not handle heavy loads. A " heavy load" is defined in accordance with Section 1.1 of NUREG-0612, i.e., a load wnose weight is greater than the combined weight of a single spent fuel assembly and its

. handling for usa 3e tool (a load of 2too /z(.S0greater than 2100 p_.i}./ZGSO peo,idt -See " r>r% Auchokf pound icad)

TAG NO. _ HANDLING SYSTEM CAPACITY LOCATION FH-CR-33 Jib Crane 0.75 tons Containment FH-RE-5 Manipulator Crane main t4oi@ 2 5 tons Containment II

(;;ge ;g), g 2(o50 l A bs .

Manipulator Crane 1.5 tons Auxiliary Hoist containment ,$

(2100 lbs)* E

  • Capacities*

shown in parentheses are the derated capacities [M See "hhoducbo'E for gut M ica.h &n of 2100 /26.50 A(3. c9me ttiM .

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7 i TAG NO. HANDLING SYSTEM CAPACITY LOCATION

, FH-RE-2 Spent Fuel Pool Bridge 2 tons Fuel Storage and Hoist (2100 lbs)* h Building g RH-CR-32 RHR, CS, SI Equipment 0.75 tons Equipment

)

Vault Monorail Hoist Vault (P.A.B.)

12 80 goond s SW-CR-16 Service Water Strainer 1. 7 ten., -

Outside Primary q

> Monorail Hoist (2100 15:}' Auxiliary L Building fet The manipulator crane auxiliary hoist, although rated at 1.5 ton, does not carry heavy loads. -The loads handled by this hoist such as control rod drive shaft, drive shaft unlatching tool, shaft handling tool, guide tube cover and cover handling tool, thimble plug and the associated handling tool etc. weigh much less than 2100 poundsj Similarly,

  • m -is!;:n ;

the spent fuel pool bridge and hoist handle only light loads, such as fuel l }

assemblies with or without control elements and their associated handling tools, burnable poison rod assembly and its handling tool etc, whkb weif t, IM Waw 2.100 p on d s.

Furthermore, during plant operation phase, the manipulator crane auxiliary hoist and the spent fuel pool bridge and hoist will be derated by posting a 2100 pounds capacity rating on the unit to caution the operators against

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usingthesehoiststoliftheavierloads.dHowever,ifoverthelifeofthe l plant a situation arises requiring use of the hoists with loads greater than 12650 rect.tt&tI4 .

2100fpoundsg it would be thoroughly reviewed by the Station Operating Review Committee.

t v" vs< a.v, ( pv c.vu ne m ai h b oia dt4touh mM ah 2,S by Q not ca y heavy te=L. Tite 1e.A3 k% Ata (,y %,s heid co,,,rs-t q o f Ee\ AMem bliek wik er wikovt conbel elevue.d s weip 1% 44,e g 2(060 pounks.

% manipulab cvuwe hdi will be -

S to at 2(oSO m -% -

OCapacities shown in parenthesis are theb.derated capacities.

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0 REQUEST 2.3-2

" Justify the exclusion of any cranes in this area from the above category by verifying that they are incapable of carrying heavy loads, or are permanently prevented from the movement of any load either directly over the reactor vessel or to such a location where in the event of any load-handling system failure, the load may land in or on the reactor vessel."

)

RFSPONSE TO 2.3-2 The following load handling systems are not listed above in Response 2.3-1.

The justification for their exclusion is provided below:

EQUIPMENT NO. CRANE TYPE CAPACITY FH-CR-33 Jib Crane Jib 0.75 tons FH-RE-5 Manipulator Crane Traveling Bridge v 2.5 tons  ;

ThM Ro U f- and Hoist (2:00 15 )* '

Manipulator Crane 2Ce 5 0 1 61 }

Auxiliary Hoist 1.5 tons j (2100 lbs)* l, The jib crane is not capable of carrying heavy loads. It is used primarily to handle studs, and tools required to unbolt and remove the reactor vessel head during refueling operations.

The manipulator crane and manipulator crane auxiliary hoists handles only light loads such as fuel assemblies, control rod drive shaft, drive shaft  ;

unlatching tool, shaft handling tool, guide tube cover and cover handling (

tool,&  % thimble plug and its associated handling tool etc. Also, manipulator cMtMe I m3@? S: auxiliary hoists will be derated tog 245(V ri$d.tactWely b 100 pounds capacity4to preclude

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inadvertent use of this hoist with heavier loads. The new (lower) rated 2 capacity will be marked on the hoist units. k 0 Capacities shown in parenthesis are the derated capacities (See "Inf>.doch "

h }$Ncdbn e{ 2.100 /2(o60 464. cg acih M .

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M~ all motors was conducted. The necessary documen-E~

tation concerning these tests is available in QA files at the plant.

E __ 8.2 Static and Dynamic Load Tests Requirement:

A static load test at 125% of the maximum critical load (MCL) should be performed. Full performance test with 100% of the MCL including verification of the proper

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functioning of all limiting and safety control devices should be conducted. -

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Actual: "e.

LLL3P C3 (Ba 3 M M "! m .d t.; y;rD =*y-haiar; = e = e i r-I 4ead retr .it- 173% Uf7he NCL and a pefformance-test-at j

oc-abeve-it 0% of the MCMill be performed as per abirve-I wequient r-Proper--functioning of_ all Limit Jsvit_ghes g -4nd-ot hem a f etpontro l- d evi ce s -vi l l- be- ve r i f i ed .-__

I 8.3 Two-Block Test E-~ Requirement: 1. When equipped with an energy-controlling device between the load block and the head block, the complete hoisting machinery should be hilowed to two-block. The test should be conducted at slow speed without load.

2. Crane should be tested for load hangup.

Actual: 1. Appendix C to NUREC-0612, allows the crane to be furnished with two independent travel limit switches in lieu of a design to withstand a two-

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blocking incident. This alternative is selected I

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TABLE 2.1.3(c)-1 (Sheet 1 of 5)

SEABROOK JTATION - UNITS 1&2 TABULATION OF HEAVY LOADS LOAD HANDLING WEIGHT IDAD FATH PROCEDURE REFERENCE CRANE / MONORAIL - HOIST LOAD IDENTIFICATION (1bs) LIFTING DEVICE ,pRAWINC SPECIFIC /CENERAL DRAWING CONTAIMENT Foler Centry Crane M-CR-3 423 Too Main 50 Ton Auxiliary Neutron Shield Fanel (8) 10,000 each Main / Aux. Hook & 805284 Whiting Corporation Ceneral F.F. d815542 Slings (See Note 2)

Reactor Cavity Seal Ring 18,625 Main / Aux. Hook & 805273 Specific F.F. #805556 d e

Slings Reactor Missile Shield 40,000 Main Hook and (See Note 1) f ?

805282 Specific F.F. 9101933 '

and Support (plus CRDM (with spreader Spreader Assembly /

'7 cooling fans) assembly) d 7

Reactor vessel Head 336,218 (with Main Hook, RV Head 805275 and Attachments Specific F.F. f50234 lifting rig) Lifting Rig, Load F.F. #50246 Cell, and Linkage Assemb;y Internale Lifting Rig 18,350 Main Book, Load cell 805272 Specific F.F. #53998 and Linkage Assembly Upper Internals 152,000 (with Main Hook, Internale 805272 Specific F.F. #50209 lifting rig) Lif ting Rig, lead Cell and Linkage Aeoembly Lower Internals 340,000 (with Main Hook, Internale Not Required Specific /Ceneral -

lifting rig) Lifting Rig, Load I

  • Cell and Linkage Assembly Jib Craceb --'- -2 Auxiliary Hook and 805272

^

y2"_ __ , - ( ,f Ceneral F.F. #54824 glinge

.-- o.,. ,5r Stud Tensioners 2,500 Aum. Rook & Slinge 805283 Ceneral F.F. f50215 i Mclud s't p k 01 b Nty  %

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M i _i LJ LL--J E- J M U N1 U --J LL-4 lb- A U '

U .a M U- U - U-' G3 U

  • TABLE 2.1.3(C)-l .-

(Sheet 5 of 5) 3 SEABROOK STATION - UNITS 1 & 2 TABULATION OF HEAVY LOADS LOAD HAND!.!NC WEIGHT LOAD PATH PROCEDURE REFERENCE CRANE / MONORAIL - HOIST LOAD IDENTIFICATION (Ibs) LIFTING DEVICE DRAWINC SPECIFIC /C'NE g DRAWINC I

RADIOACTIVE PIPE TUNNEL 1 Radioactive Pipe Smap Isolation valve Less than Slings See Note 3. Ceneral F.P. #90911 >

Tunnel Service Topworks (16" CBS- 2,500 lbs. g' >

Monorail Hoist V8 and V14) /

CBS-CR-18A & 188 N q 2 Ton capacity each ,

EQUIPMENT VAULT (P.A.B.)

2.80 '

Safety Injection Stings i Pump 3eb.

See Note 3. Ceneral F.P. #52936 ,

Pump Service Monorail Pump Motor 2,750 " " " " '

t Hoist '

SI-CR-40A & 405 d g.l /Toa Capacity each i p

NOTES:

1. Specific Procedure A specific procedure governs critical load handling operations requiring unique procedures, and provides detailed instructions for the movement and handling of such loads, or performance of complex tasks requiring greater detail to ensure safe handling of loads.
2. General Procedures A general procedure governs all crane and load handling operations not requiring a specific procedure, and may serve as a reference document for specific procedures. ,;

( .7

3. Load path is confined to the monorail track within a compartment that is separated by concrete walls from the adjoining compartment /s containing redundant equipment and associated monorails. '

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4. Load path is the entire area of crane travel within the two rails. The load is handled only when the plant is in cold shutdown with g the residual heat removal system in operation.

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_. - -- -. _ , _ . . .- - -.~ _ _ ~

TABLE 2.4.2-1 (Sheet 10 of 11)

CONTROL OF LOAD / IMPACT AREA MATRIX . 4 HEAVY LOADS $

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NUREG 0612 SEABROOK STATION UNITS 1 & 2 f

CRANE: SAFETY INJECTION PUMP SERVICE MONORAIL HOIST Ton capacit (SI-CR-40A & -40B) cf

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LOCATION BUILDING : EQUIPMENT VAULT (PAB)

IMPACT Zone: Column 1-D

-- AREA l i

,' J Hazard c Safety Related Elimination LOADS Elevation Equipment Category

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SBN- 1088 ATTACHMENT 2 DESCRIPTION AND JUSTIFICATION Revision to Table 2.1.3(c)-1, Sht. 1 of 5 One of the loads identified for the Polar Gantry Crane, in the above referenced table, is the " Jib Crane (including hoist and trolley)".

The weight shown is the heaviest of two lif ts. The second lift, the pedestal weighing 2500 pounds, was not specifically listed in the table.

As a result of a review of the use of this cranc during refueling operation and the number of times the crane would be disassembled and assembled (at least six times) we have decided to make a single lift of 5500 pounds. A single lift in lieu of a two lift process would, of course, require some changes to the crane.

The change described does not involve an issue of safety signif-icance. The lif ting devices used to remove and install the Jib Crane haie a maximum critical load capscity of at least 25 tons which equates to a safety factor of approximately 9 for the single lif t load of 5500 pounds.

Revision to pages 1, 7, 12, 13, 37 A heavy load is defined, in accordance with NUREG-0612, as a load whose weight is greater than the combined weight of a single spent fuel assembly and its handling tool. In determining this weight, we considered ,

the load on the Spent Fuel Bridge and Holst (FH-RE-2), the Manipulator Crane Auxiliary Holst, and the Manipulator Crane Main Hoist (Refueling Machine). For the Spent Fuel Bridge and Hoist and the Manipulator Crane Auxiliary Holst, we determined that the load would be 2071 pounds. The load determined for the Manipulator Crane Main Hoist was 1616 pounds.

As a result, we selected a value of 2100 pounds for our site specific heavy load threshold weight.

4 Since this earlier determination, while performing a review of the internal structure of the Manipulator Crane Main Holst, we found that the gripper mast was not structurally integral with the crane bridge and that the mast's weight (980 pounds) was directly imposed on the lif ting cable. This increased the load on the Manipulator Crane Main Hoist from 1616 pounds to 2596 pounds.

As the 2100 pounds weight is obviously the mos: conservative for determining if a load should be categorized as a heavy load, we intend to maintain this value as the threshold weight limit for all areas and cranes except the Manipulator Crane Main Holst (Refueling Machine) which will have a specific threshold weight limit of 2650 pounds. As a result of this change, we would also derate the Main Hoist from 2.5 tons (5000 pounds) to 1.325 tons (2650 pounds).

SBN- 1088 ATTACRMENT 2 DESCRIPTION AND JUSTIFICATION (Continued)

Revision to pages 10, 11, 13, Table 2.1.3(c)-1, sht. 5 of 5, Table 2.4.2-1, sht. 10 of 11 The following are being updated based on the latest inf o rmat ion.

1. The capacities of the following cranes / hoists were updated:

o SI-CR-40 A, B 4.0 tons to 3.1 tons (p. 10)

, o CO-CR-92A to 92X; 4.125 tons to 4.0 tons (p. 11) o CW-CR-22; 10 tons to 13 tons (p.11) o PAH-CR-17; I ton to 0.75 tons (p. 11) o SW-CR-16; 1.7 tons (2100 lbs.) to 1210 lbs. (p. 13)

2. Table 2.1.3(c)-1, sht. 5 of 5; Updated weight specified for pump for hoists SI-CR-40A, B, and the hoist capacity.
3. Table 2.4.2-1, sht. 10 of 11; Updated capacity specified for hoists and deleted double asterisked note (**).

Revision to page 65 Item 8.2 ' Static and Dynamic Load Testo" is being revised to be consistent with the Heavy Loads Report revision submitted previously via PSNH Letter, dated March 31, 1986 (SBN-977).

Revision to Drawing No. 9763-F-805279 The safe load paths for "new fuel assembly (([))" and "new fuel shipping container (l 2 l)" are to be revised as follows:

o New fuel shipping containers: load path: will be moved up to the South wall and into the cask lift rig area.

o New fuel assembly load path will be eliminated.

The new fuel shipping container load path is being changed as a result of the receipt of fuel at Seabrook. Briefly stated, we found it necessary to expand the load path area to facilitate the receipt of fuel. This change will not reduce the reliability of load handling operations in the fuel handling building.

The new fuel assembly load path is being eliminated to reduce confusion since a new fuel assembly does not constitute a heavy load. This change also will not reduce the reliability of load handling operations in the fuel handling building'.

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