ML20128C201

Suggests Issuance of Board Notification Re Problem Concerning Tdi Diesel Air Start Sys at Facility.Cracking Apparently Caused in Svc by Improper Internal Dimensional Tolerances

ML20128C201
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	04/19/1985
From:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Thompson H Office of Nuclear Reactor Regulation
Shared Package
ML20127G654	List: ML20127G651 ML20128C201
References
NUDOCS 8507030505
Download: ML20128C201 (2)

Text

Enclosure

1. e UNITED STATES 8 ,

NUCLEAR REGULATORY COMMISSION

$ E REGION I

$ 631 PARK AVENUE

%, ,o#g KING oF Pf4US$1A. PENNSYLVANIA 19406 APR 191966 Docket No. 50-322 --

MEMORANDUM FOR: Hugh L. Thompson, Director, Division of Licensing, NRR FROM: Richard W. Starostecki, Director, Division of Reactor Projects, Region I

SUBJECT:

p0TENTIAL BOARD NOTIFICATION - TDI DIESEL AIR START CHECK VALVE CRACK AT SHOREHAM The purpose of this memorandum is to bring to your attention a problem concern-ing the TDI diesel air start system at the Shoreham Nuclear Power Station and the possible need for Hearing Board or Commission notification.

The Grand Gulf Station has experienced cracked disc stem guides in Williams-Gauge Co. check valves. A Part 21 Report documenting this problem was issued by TDI on March 12, 1985. Two of the valves in question are used in each of the three TDI engines' air start systems at Shoreham. While conducting inspec-tions on April 2, 1985, for the above-mentioned problem, a 180* circumferential through-wall crack (unrelated to the Grand Gulf problem) was identified by LILCo on an internal center support web within the valve body casting on one of these valves installed on TDI Engine No.101. Had the crack fully propagated, a portion of the casting could have dislodged and potentially affected engine operability. Region I issued the attached PNO-I-85-22 on April 3, 1985, describing this problem.

LP testing in the center web support area of the six valves, from engine numbers 101, 102, and 103, has been completed. Only one valve, originally installed on EDG-101, has been found to have cracking in this area. The cracking was apparently caused in service by improper internal dimensional tolerances which caused the " shoulder" portion of the lower disc guide (which protects the valve's spring) to hammer against the center web support stop, which eventually cracked. A dimensional as-built sketch of this cracked valve (Tag No. R43*03V-213A, Serial No. 43378) is attached. The depth of the shoulder (0.194 inches) exceeded the center web piece depth (0.171 inches) into which it was suppose to fit.

Liquid penetrant (LP) testing of seven valve discs (six, plus a spare) for the l.,

disc stem guide cracking experienced at Grand Gulf revealed non-repairable linear surface indications on two discs. One disc had a vertical crack on the a 5/8-inch bottom disc guide, and one disc had a circumferential' crack in the blend area where the disc and stem guide meet.

The three-inch air start check valves at Shoreham were supplied by TDI as  :

skid-mounted equipment (safety-related, Category I, non-ASME III). They were manufactured by the Williams-Hager Company (identified as Figure No. 329),

which was later purchased by the Clow Corporation. The valve disc, including its upper and lower stem guides, is a one piece cast-equivalent type 304 stainless steel casting.

8507030505 850610 PDR ADOCK 05000322 S PDR

Director, Division of Licensing, NRR 2 Evaluation of the suitability of replacement valves (e.g. , TRW Mi.ssion Duo-Check II), is being considered by LILCo. Also, failure analysis of the Grand Gulf air start check valve discs is expected to be completed this month. There are also five other Hager-Williams check valves, of similar design ~ (i.e.,

Figure No. 329) to those in the air start system, which are installed on each TDI engine. These are used in the jacket water and lube oil subsystems and range in size from one and one-half to five inches. LILCo is currently evalu-ating what actions to take with regard to these valves.

The Shoreham senior resident inspector is following the licensee's inspection progress and their plans for corrective action. I suggest that you may want to consider making a Commission or Board notification on this subject. If you have any questions, please feel free to contact me.

t -:+

Richard W. tarostecki, Director Division of Reactor Projects Region I Attachments:

1. Region I PNO 85-22

2. Dimensional Sketch of Valve 213A

3. Section from Williams-Gauge Operating and Maintenance Instructions O

Attacnment 1

',* ,. ., DCS No: 50-322/850402 Date: April 3, 1985

. PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-I-85-22 9his preliminary notification constitutes EARLY notice of events of POSSIBLE safety er public interest significance. The information is as initially received without Ocrification or evaluation, and is basically all that is known by the Region I staff on this date. .

@acility: Long Island Lighting Company Licensee Emergency Classification:

. Shoreham, New York Notification of Unusual Event Shoreham Nuclear Power Station Alert (DN 50-322) Site Area Emergency

. General Emergency X Not Applicable 9ubject: TDI DIESEL AIR START CHECK VALVE CRACK

@n April 2,1985 the licensee found a crack in a Trans America DeLaval Inc. (TDI) emergency ,

61esel generator (EDG) No.101 air start check valve body. The air start system associated cith each EDG starts the engine upon receipt of an emergency signal. The valves are made by D1111ams Gauge Co. of Pittsburg, Pennsylvania and each engine has two such valves. The TDI EDGs are not required for low pcwer plant conditions. The reactor is currently subcritical Cnd shutdown, with the mode switch in Refuel.

The Itcensee had been inspecting these valves because of an unrelated cracked disc stem Oroblem experienced at Grand Gulf. Unlike the Grand Gulf problem, however, the crack found on Ghe Shoreham EDG-101 check valve is a 180-degree circumferential through wall condition on an interbody backseating portion of the valve. A complete 360-degree crack would result in Gislodging this segment of the valve body, thereby disabling a portion of the air start system Ond possibly preventing the engine from starting or continuing to run. The originally planned

. inspection of the Shoreham air start valves for disk stem cracks has yielded some indications Ci dye penetrate testing on EDG-102. These are currently being reviewed by LILCo. Insper. tion Gf all six TDI engine air start check v41ves is expected to be completed by the end of this week.

Qegicn I will respond to media inquires. The State of New York has been informed. The resident inspector is following this matter on site.

CONTACT: P. Eselgroth E. Kelly (516) 929-3311 488-1132

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DISTRIBUTION LIST FOR BOARD NOTIFICATION Catawba Units 1&2, Docket Nos. 50-413/414 Ms. Karen E. Long Comanche Peak Units 182, Docket Nos. 50-445/446 Dr. Emmeth A. Luebke Midland Units 1&2 Docket Nos. 50-329/330 Morton B. Margulies, Esq.

Perry Units 1&2, Docket Nos. 50-440/441 Mr. Wendell H. Marshall Shearon Harris Units 1&2, Docket Nos. 50-400/401 Mr. Robert D. Martin

,. Shoreham Unit 1. Docket No. 50-322 Dr. Kenneth A. McCollom Vogtle Units 182, Docket Nos. 50-424/425 J. Michael McGarry, III, Esq.

WNP 1. Docket No. 50-460 Janine Migden, Esq.

n Michael I. Miller Esq.

Atomic Safety and Licensing Peter S. Everett Esq. Marshall E. Miller, Esq.

Board Panel Donald T. Ezzone, Esq. Dr. Peter A. Morris Atomic Safety and Licensing Jonathan D. Feinberg, Esq. Chris Nolin Appeal Panel (52) Dr. George A. Ferguson Fabian G. Palomino, Esq.

Docketing and Service Section Dr. Harry Foreman Dr. Oscar H. Paris Document Management Branch Dr. Richard F. Foster Mr. Travis Payne, Esq.

MHB Technical Associates Laurie Fowler, Esq. Spence W. Perry, Esq.

Palmetto Alliance Leon Friedman, Esq. John D. Pirich, P.C.

Joseph Gallo, Esq. William L. Porter, Esq.

Robert Abrams, Esq. Billie Pirner Garde William C. Potter, Jr., Esq.

Martin Bradley Ashare, Esq. Ellen Ginsberg, Esq. Dr. Paul W. Purdom Edward M. Barrett, Esq. Stewart M. Glass, Esq. Mr. Paul Rau Charles Bechhoefer, Esq. James P. Gleason, Esq. Mr. Daniel F. Read Ms. Nina Bell Herbert Grossman, Esq. Harold F. Reis. Esq.

Ms. Lynne Bernabei Mr. Robert P. Gruber W. Taylor Reveley, III Esq. ,

Bruce Berson, Esq. Robert Guild, Esq. Nicholas S. Reynolds Esq. '

Peter B. Bloch, Esq. Dr. Jerry Harbour Mr. Jesse L. Riley Ms. Nora Bredes Mr. Bruce L. Harshe Mr. Steven Rochlis Lawrence Brenner, Esq. Samuel A. Haubold, Esq. Anthony Z. Roisman, Esq.

Mr. Glenn 0. Bright Mr. Wayne Hearn Mr. Eugene Rosolie Herbert H. Brown, Esq. Ms. Susan Hiatt Mr. John Runkle James E. Brunner, Esq. Renea Hicks, Esq. Mr. Kevin M. Ryan Mr. Ronald C. Callen Dr. Frank F. Hooper Mr. Frederick J. Shon John G. Cardinal, Esq. Elizabeth B. Johnson, Esq. Jay Silberg, Esq.

Dr. James H. Carpenter Mr. Tim Johnson Ms. Mary Sinclair l Gerald Charnoff, Esq. James E. Joiner Esq. Mr. Lanny Alan Sinkin i Myron M. Cherry, p.c. Bradley Jones, Esq. Mr. Gerald C. Sorensen t Bruce W. Churchill, Esq. Richard E. Jones Esq. Mr. Michael D. Spence John Clewett, Esq. Dr. Walter H. Jordan Ms. Barbara Stamiris Hon. Peter Cohalan Mr. James R. Kates Mr. Martin Suubert  !

Barton Z. Ccwan, Esq. Mr. Frank J. Kelley Mr. Douglas C. Teper Dr. Frederick P. Cowan Mr. James L. Kelley Ruble A. Thomas

. T. J. Creswell, Esq. Dr. Jerry R. Kline George F. Trowbridge, Esq.

Gerald C. Crotty, Esq. Stephen B. Latham, Esq. Mr. Donald R. Willard Mr. James E. Cunanins Dr. Robert M. Lazo Mr. Frederick C. Williams

. James B. Dougherty Esq. Dr. J. Venn Leeds, Jr. Richard P. Wilson, Esq.

Donna D. Duer, Esq. Mr. Howard A. Levin Richard D. Wilson, M.D.

Jay Dunkleberger Esq. Mr. Nicholas D. Lewis Robert A. Wooldridge, Esq.

Alan R. Dynner, Esq. Mr. Gustave Linenberger,Jr.

Wells Eddleman Dr. Linda W. Little

• Mrs. Juanita Ellis Terry J. Lodge, Esq.

l

Branch service lists of addressees receiving material on the follo;ing dockets:

SHOREHAM DOCKET COMANCHE PEAK DOCKET Mr. John D. Leonard Resident Inspector Mr. Homer C. Schmidt Energy Research Group, Inc. Mr. Robert E. Ballard, Jr.

Ezra I. Bialik Mr. A. T. Parker Dr. M. Stanley Livingstone Mr. David R. Pigott, Esq.

Mrs. Nancy H. Williams SHEARON HARRIS DOCKET Regional Administrator, RIV B. R. Clements Mr. E. E. Utley Mr. Dennis Kelley Mr. David Gordon, Esq. Mr. John W. Beck Mr. Thomas S. Erwin, Esq. Mr.' Jack Redding Resident Inspector William A. Burchette, Esq.

Charles D. Barham, Jr., Esq. Mr. James McGaughy Mr. George Jackson Regional Administrator, Region II Mr. . Robert P. Gruber CATAWBA DOCKET Mr. H. B. Tucker PERRY DOCKET North Carolina MPA-1 Mr. F. J. Twogood Mr. Murray R. Edelman Mr. J. C. Plunkett, Jr.

Donald H. Hauser, Esq. Mr. Pierce K. Skinner Resident Inspector North Carolina Electric Membership Corp.

Regional Administrator, Region III Saluda River Electric Cooperative Inc.

Mr. Peter K. VanDoorn l Regional Administrator, Region II MIDLAND DOCKET Spence Perry, Esq.

Mark S. Calvert, Esq.

Mr. J. W. Cook Stewart H. Freeman Ms. Julie Morrison Mr. R. B. Borsum Mr. Don van Farrowe Resident Inspector Mr. Paul A. Perry Mr. Walt Apley Regional Administrator, Region !!!

Mr. Ron Callen Geotechnical Engineers Billie Pirner Garde

. Comander, Naval Survace Weapons Ctr.

Mr. L. J. Auge Mr. Neil Gehring l

.. Mr. !. Charak .

Clyde Herrick l Mr. Patrick Bassett

.