ML20154S715
| ML20154S715 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 09/29/1988 |
| From: | Tiernan J BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML20154S718 | List: |
| References | |
| NUDOCS 8810050142 | |
| Download: ML20154S715 (11) | |
Text
DALTIMORE GAS AND ELECTRIC CHARLES CENTER P. O. BOX 1475 BALTIMORE. MARYLAND 21203 JostPH A.TitRN AN vie s e...,*
- Nuconet=,.".,
September 29, 1988 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:
Document Control Desk SUIk7ECT:
Calvert Cliffs Nuclear Power Plant Unit No. It Docket No. 50-317 Inservice Insoection ReDorts ENCLOSURES:
(1) ASME Boiler & Pressure Vessel Code Section XI, l
Form NIS-1 l
(2) 1988 Inservice Examination of Selected Class 1, l
Clacs 2, and Class 3 Components and Systems of Calvert Cliffs Nuclear Power Plant Unit 1,
Volumes 1 through 5 j
(3) Steam Generator til and
- 12 Eddy Current Testing Final Report, April / June 1988 Gentlemen:
Please find enclosed the Inservice Inspection reports for Calvert Cliffs Unit 1.
The results are incorporated within the three enclosures submitted.
These inspections fulfilled the intentions and requirements stated in our program plan and our commitment to I
comply with ASME Code Section XI Inservice Inspection requirements.
Should you have any questions en the contents of this report, please do not hesitate to contact us.
Very truly yours, JATI LMD:mic A
Enclosures p
i 4 C' 8810050142 890929 PDR ADOCK 05000317 g
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Document Control Desk l
September 29, 1988 j
Page 2 l
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cc (w/o Enclosures)
D. A. Brune, Esquire 3
j J. E. Silberg, Esquire l
)
R. A. Capra, NRC i
S. A. McNeil, NRC W. T. Russell, NRC 4
D. C. Trimble/V.
L.
Pritchett T. Magette, DNR l
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ENCLOSURE (1)
TO BALTIMORE GAS AND ELECTRIC COMPANY'S INSERVICE INSPECTION REPORT FOR CALVERT CLIFFS UNIT 1 ASME BOILER AND PRESSURE VESSEL CODE i
SECTION XI, FORM NIS-1
DATE8 SeDtember 29. 1988 NIS-1 PAGE 1
of 7
NIS-1 FORM NIS-1 ONNER'S DATA REPORT FOR INSERVICE INSPECTIONS (As Required by the Provisions of the ASME Code Rules) 1.
Owner:
Baltimore Gas and Electric Company P. O.
Box 1475 Baltimore, MD 21203 i
2.
Plant:
Calvert Cliffs Nuclear Power Plant Lusby Post Office Lusby, MD 20657 3.
Plant Unit:
4.
Owner Certification of Authorization:
.11 HA_
- 5. Commercial Service Date:
6.
National Board Number for Unit:
May 8, 1975 20911
- 7. Components Inspected:
l l
COMPONENT MANUFACTURER MANUFACTURER STATE NATIONAL OR OR OR INSTALLER OR BOARD APPURTENANCE INSTALLER SERIAL f PROVINCE f NUMBER Reactor Combustion Pressure Engineering CE-67107 14000N 20911 Vessel Pressurizer Combustion a
l Engineering CE-67602 14000N 2091S
~~
Steam Combustion Generator Engineering CE-67504 14000N 20922 411 Steam Combustion CE-67505 14000N 20923 Generator Engineering
]
- 12 Reactor Combustion i
Coolant Engineering CONTRACT No.
Pipe 72467 fila Reactor Byron Jackson /
Coolant Pump /
Bechtel SN-0437 Support 1
illB Reactor Byron Jackson SN-0438 Coolant Pump i
l DATE SeDtember 29, 1988 NIS-1 PAGE 2
of 7
l NIS-1
- 1. Owner:
Baltimore Gas and Electric Company i
P. O.
Box 1475 Baltimore, MD 21203 2.
Plant:
Calvert Cliffs Nuclear Power Plant i
Lusby Post Office Lusby, MD 20657 3.
Plant Unit:
4.
Owner Certification of Authorization:
.fi
._HA-
- 5. Commercial Service Dates 6.
National Board Number for Unitt May 8.
1911_
20911 7.
Components Inspected (Continued):
l COMPONENT MANUFACTURER MANUFACTURER STATE NATIONAL OR OR OR INSTALLER OR BOARD APPURTENANCE INSTALLER SERIAL f PROVINCE f NUMBER
- 12A Reactor Byron Jackson SH-0439 Coolant Pump
- 12B Reactor Byron Jackson /
SN-0440 Coolant Pump /
Bechtel Support
- 11A RCP Westinghouse SN-2S-79P528 l
Motor l
Flywheel l
t
- 11B RCP Westinghouse SN-1S-77P168 Motor Flywheel i
l
- 12A RCP Westinghouse SN-2S-77P108 I
Motor Flywheel l
l l-
$12B RCP Westinghouse SN-1S-89P957 Motor Flywheel Shutdown Kellogg/Bechtel cooling ITT Grinnell Piping /
l Supports 1
1
DATE:
Sectember 29, 1988 NIS-1 PAGE 3
of 7
i NIS-1
- 1. Owner:
Baltimore Gas and Electric Company P. O.
Box 1475 Baltimore, ND 21203 2.
Plant Calvert Cliffs Nuclear Power Plant Lusby Post Office Lusby, MD 20657 3.
Plant Unitt 4.
Owner Certification of Authorization:
11 EA-
- 5. Commercial Service Datet 6.
National Board Number for Unit May 8.
1975 20911
- 7. Components Inspected (Continued):
CONPONENT MANUFACTURER MANUFACTURER STATE NATIONAL OR OR OR INSTALLER OR BOARD l
AIPURTENANCE INSTALLER SERIAL f PROVINCE f NUNBER Safety Kellogg/Bechtel Injection ITT Grinnell Piping /
Supports Pressurizer Kellogg/Bechtel Spray Piping /
ITT Grinnell Support Charging Kellogg/Bechtel Piping /
ITT Grinnell Supports l
RCS Drain Kellogg/Bechtel J
Piping /
ITT Grinnell Support Main Steam Kellogg/Bechtel Piping Feedwater Kellogg/Bechtel Piping i
t Pressurizer ITT Grinnell/
Surge Bechtel Support i
Pressurizer ITT Grinnell/
Safety &
Bechtel Relief Support I
DATE:
Sootenbar 29. 1988 NIS-1 PAGE 4
of 7
NIS-1
- 1. Owner:
Baltimore Gas and Electric Company P. O. Box 1475 Baltimore, MD 21203 2.
Plant Calvert Cliffs Nuclear Power Plant Insby Post Office Lusby, MD 20657 3.
Plant Unit 4.
Owner Certification of Authorisation
.11 EA
- 5. Commercial Service Date 6.
National Board Number for Unit:
i May 8, 1975 20911 7.
Components Inspected (Continued):
COMPONENT MANUFACTURER MANUFAC'IURER STATE NATIONAL OR OR OR INSTALLER OR BOARD i
l APPURTENANCE INSTALLER SERIAL f PROVINCE $
NUMBER Letdown ITT Grinnell 6
Supports
- 11 Shutdown Engineers &
S-15783-A 14054NV 1143 Cooling Heat Fabricators /
Exchanger Bechtel Regenerative Whitlock/
75251 56360NV 75251 Heat Exchanger Bechtel 8.
Examination Dates:
January 13. 1987 to July 4.
1988 9.
Inspection Interval ADril 1.
1987 to ADril 1.
1997 l
- 10. Abstract of Examinations:
(Include list of exams and statements concerning status of work required for current I
inte rval).
(See Enclosures 2 and 3 for the list of exams).
The examinations reported herein constitute the ninth such report of Inservice examination performed at Calvert Cliffs Unit 1,
and the first report within tne first period of the second interval of commercial operation.
The examinations for the second interval as required by the Long-Tern Examina-tion Plan for Calvert Cliffs Unit 1,
were performed in accordance with the 1933 Edition of ASME Code Section XI with Addenda through Suamer 1983.
Hydrostatic and System Pressure Testing Procedures are available at the plant site for review.
l DATE3
.. Septonbor 29, 1988 NIS-1 l
PAGE 5
of 7
NIS-1 11.
Abstract of Conditions Noted (Sco Enclosures 2 & 3) a.
Eddy current examinations of fil and #12 Steam Generators revealed signs of steam generator tube degradation.
Results of fil Steam Gonorator examinations showed that of the 8,463 tubos examined, 21 were defective (1 40%
wall loss), 149 were degraded (between 20 and 39% wall loss),
and 135 had imperfections
(<
20% wall loss).
Inspection of #12 Steam Generator revealed that of the 8,482 tubes
- 6xamined, 17 were defective, 136 were degraded and 152 had imperfections.
b.
Codo-allowable indications were recorded during ultrason-ic testing examinations of Main Steam piping welds 34-MS-1202-10 and 13, Steam Gonorator 11 Wold SG-11-3, I
and Steam Generator 12 weld 12-4-102.
c.
During the PT examinations of Reactor Coolant piping weld 30-RC-118-7 and Safety Injection piping wold 12-SI-1009-16, arc strike indications vero recorded.
d.
Linear indications were recorded during the PT examina-l tion of support lugs for RCP-11A and RCP-11B.
Also on l
RCP-11B, visual examination of the capscrews revealed heavy
- pitting, gouging and/or heat cracking in the
- threads, c.
Visual examinations of supports revealed 5 supports with construction / installation deficiencies at the integral I
attachments; 8 supports with misning or loosoned items; I
2 supports with improper spring sottings; and 6
supports with other construction deficiencies.
I 12.
Abstract of Correctivo Measures Recommended and Takent (Sco Enclosures 2 & 3) n.
Those tubes found to contain imperfections greater than 40% wall loss were removed from service by plugging each end with a mechanical ribbed tube plug.
Additionally, 1
31 tubos which showed oddy current indications of less than 40% nominal wall loss were plugged.
These 31 tubos woro plugged because of the potential for a local active intorgranular attack (ICA) mechanism in the sludge pile area.
Previous metallurgic examination of Unit 1 tubing has shown degradation in this area of each steam generator was caused by IGA.
l b.
All ultrasonic testing indications were evaluated, per ASME Code Section XI 1983 Edition through Summer 1983
- Addenda, and found acceptable by Baltimore Gas & Elec-tric.
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1
DATE:
September 29. 1988 NIS-1 PAGE 6
of 7
NIS-1 c.
The arc strikes on Reactor Coolant piping weld 30-RC-11B-7 and Safety Injection piping weld 12-SI-1009-16 were removed by light
- grinding, and i
following reexamination were found acceptable and l
returned to service.
i i
d.
The indications found during the examination of RCP 11A l
and 118 support lugs were removed by light
- grinding, and following reexamination were found acceptable and returned to service.
The capscrews were replaced.
e.
The supports were either accepted by evaluation in accordance with IWF-3122.4 or repaired by brin them their original design. ging into conformance with l
l
- 13. NAMES OF INSPECTORSt R.
W.
Lawrence,
N.
S.
Hewitt EMPLOYER OF INSPECTORSt Factory Mutual Enaineerina One Bala Plaza Suite 200 Bala Cynwyd. PA 19004 i
We certify that the Statements made in this report are correct i
and the examinations and corrective measures taken conform to the i
rules of the ASME Code,Section XI.
i DATE:
h 19 b.
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SIGNED:
, Baltimore Gas & Electric Company A. R. Thornton General Supervisor -
Plant & Project Engineering i
Certificate of Authorization No. HA Erpiration Date HA i
(
i
DATE:
Sentamber 29, 1988 NIS-1 PAGE 7
of 7
NIS-1 P
CERTIFICATE OF INSERVICE INSPECTION I,
the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and/or the State or Province of Maryland and employed by Arkwriaht-Mutual Insurance connany have inspected the components described in this Owner's Data Report during the period January 13. 1987 to July 4.
1988, and state that to the best of my knowledge and i
3 belief, the Owner has performed examinations and tab.en corrective measures described in this owner's Data Report in accordance with i
the requirements of the ASME Code,Section XI.
t By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the l
examinations and corrective measures descrtbed in this owner's i
i Data Report.
Furthermore, neither the Inspector nor his employor i
shall be liable in any manner for any personal injury or property l
damage or a loss of any kind arising from or connected with this a
inspection.
l' DATE d#rr 27 1968
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INSPECTOR SIGNATUR2
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FACTORY MUTUAL SYSTEM J
COMMISSION:
NB 8 Z 2 c,
, MD 647 t
National Board State h
q Province and No.
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N ENCIDSURE (2)
TO BALTIMORE CAS AND ELECTRIC COMPANY'S INSERVICE INSPECTION REPORT 1988 INSERVICE EXAMINATION OF SELECTED CIASS 1, CIASS 2, AND CLASS 3 COMPONENTS AND SYSTEMS OF CALVERT CLIFFS NUCLEAR POWER PIANT UNIT 1 VOIBMES 1 THROUGH 5 i
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