ML20064K788

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Responds to IE Bulletin 82-02, Degradation of Threaded Fasteners in RCPB of PWR Plants. Fasteners on Closure Connections Routinely Opened for Component Insp/Maint During Refueling Outage.Results Listed
ML20064K788
Person / Time
Site: Farley Southern Nuclear icon.png
Issue date: 01/17/1983
From: Clayton F
ALABAMA POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-SSINS-6820 IEB-82-02, IEB-82-2, NUDOCS 8302150009
Download: ML20064K788 (3)


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Mailing Address Al;bim2 Power Comp:ny A '

y % North 18th Street Post Offics Box 2641 Birmingh m, Alabama 35291 Telephone 205 783-6081 F. L Clayton, Jr.

b Senior Vice President Flintridge Building Alabama Power the southem electrc system Janua ry 17, 1983 Docket No. 50-364 LJ 1._

U. S. Nuclear Regulatory Commission I

Region II, Suite 3100 7c 101 Marietta Street N. E.

Atlanta, GA 30303 m

FG Attention:

Mr. J. P. O'Reilly, Administrator

.c-CO Joseph M. Farley Nuclear Plant - Unit 2 IE Bulletin Number 82-02 Gentlemen:

In accordance with IE Bulletin 82-02, subject:

" Degradation of Threaded Fasteners in the Reactor Coolant Pressure Boundary of PWR Plants," the following is submitted:

NRC REQUEST:

l Submit a statement that where procedures do not exist, develop and implement maintenance procedures for threaded fastener practices.

These procedures l

should include, but not [be] limited to the following:

(1) maintenance crew training of proper boltinc/ stud practices, tools application, specifications and requirements, (2) detensioning I

and retensioning practices (torque iteration),

specified tolerances, and other controls for disassembly and reassembly of component closure / seal connections, (3) gasket installation and controls, and (4) retensioning methods and other measures to eliminate reactor coolant leakage during operation.

l 8302150009 930117 PDR ADOCK 05000364 u

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Mr. J. P. O'Reilly Janua ry 17, 1983 Page 2 Quality assurance measures should also be established for proper selection, procurement, and application of fastener lubricants and injection sealant compounds to minimize fastener susceptibility to SCC environments.

APC0 RESPONSE:

The above required maintenance procedures and quality assurance measures have been established and incorporated into Farley Nuclear Plant procedures.

NRC REQUEST:

Threaded fasteners of closure connections, i6entified in the scope of this bulletin, when opened for component inspection or maintenance shall be removed, cleaned, and inspected per IWA-2210 and IWA-2220 of ASME Code Section XI (1974 edition or later) before being reused.

Identify the specific connections examined and provide the results of this examination.

APC0 RESPONSE:

The belo, listed threaded fasteners of closure connections were routinely opened for component inspection / maintenance during the recent Unit 2 refueling outage with the following results:

Closure Type of Des cri pti on Examination Results Steam Generators A, Removed - Wet No degradation B and C Hot and Magnetic Particle Cold Leg Manways and Visual Reactor Coolant Removed - Wet No degradation Pumps B and C #1 Magnetic Particle, Seal Housing Ultrasonic and Visual 4

Hi/Lo Head SI Check Removed - Wet No degradation Valve Q2E11V051A Magnetic Particle and Visual

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Mr. J. P. O'Reilly J anua ry 17, 1983 Page 3 This completes Alabama Power Company's Unit 2 requirements for IE Bulletin Number 82-02.

If you have any questions, please advise.

Yours very truly, F. L. Clayton, J r.

FLCJ r/ JAR :mj h-D33 cc:

Mr. R. A. Thomas Mr. G. F. Trowbridge Mr. S. A. Varga SWORN T0 )ND SUBSCRIBED BEFORE ME Mr. E. A. Reeves THIS /72 DAY OF, /u Mr. W. H. Bradford

,1983

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