ML050350194
| ML050350194 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 02/03/2005 |
| From: | Bezilla M FirstEnergy Nuclear Operating Co |
| To: | Caldwell J Region 3 Administrator |
| References | |
| 1-1400, EA-03-214 | |
| Download: ML050350194 (4) | |
Text
FENOC Firstfnergy Nuclear Operafing Company 5501 North State Route 2 Oak Harbor. Ohio 43449 Mark B. Bezilla Vice President - Nuclear 4 19-32 1-7676 Fax: 419-321-7582 10 CFR 2.202 Docket Number 50-346 License Number NPF-3 Serial Number 1-1 400 February 3,2005 Mr. James L. Caldwell, Administrator United States Nuclear Regulatory Commission Region I11 2443 Warrenville Road, Suite 2 10 Lisle, Illinois 60532-4352
Subject:
Davis-Besse Nuclear Power Station (DBNPS)
Mid-Cycle 14 Outage Reactor Head Visual Inspection Results (Confirmatory Order EA-03-2 14)
Ladies and Gentlemen:
By letter dated March 8,2004 (DBNPS Log Number 1 -4524), the Nuclear Regulatory Commission issued Confirmatory Order EA-03-21 4 modifying the DBNPS Operating License.Section IV.2 of the Order required the FirstEnergy Nuclear Operating Company (FENOC) to conduct a visual examination of the reactor pressure vessel upper head bare metal surface, including the head-to-penetration (also known as nozzle) interfaces; the reactor pressure vessel lower head bare metal surface, including the head-to-penetration interfaces; and the control rod drive mechanism flanges, using VT-2 qualified personnel and procedures during the Cycle 14 mid-cycle outage, and to report the results and evaluation of the inspections to the Regional Administrator, NRC Region 111.
The visual examinations required by the Order have been completed. No evidence of reactor coolant leakage was found. The examinations did find a small build-up of material and stains on or near some of the control rod drive nozzles on the reactor pressure vessel upper head, including at the head-to-nozzle interfaces. The material involved is orangehrown in color and has little volume. Inspection records show that the material and stains existed before the current operating cycle, and appears to be iron oxide generated by typical atmospheric corrosion of the low alloy steel reactor vessel
Docket Number 50-346 License Number NPF-3 Serial Number 1-1400 Page 2 of 2 head. The material and stains were likely formed at elevated temperatures during the Normal Operating Pressurebformal Operating Temperature testing performed in Fall, 2003. The head-to-nozzle interface likely held moisture that was driven out during the testing. This resulted in the appearance of the iron oxide after the testing, but a lack of pronounced growth in the following operating cycle. Close inspection of several of the most affected nozzles did not reveal any material wastage, boric acid, or any other evidence that would be associated with reactor coolant leakage.
A bare metal examination of the reactor pressure vessel upper head will be performed again during the Fourteenth Refieling Outage (1 4RFO), currently scheduled for Spring, 2006. The results will be reviewed to determine if there are indications of changing material conditions.
If you have any questions or require further information, please contact Mr. Clark A.
Price, Manager - Regulatory Compliance, at (4 19) 32 1-8585, Very truly yours, DRW/CAH/JTM J
Attachment:
Commitment List cc:
NRC Document Control Desk J. B. Hopkins, DB-1 NRC/NRR Senior Project Manager C. A. Lipa, Chief - Branch 4, Division of Reactor Projects S. A. Reynolds, Chairman - Davis-Besse Oversight Panel C. S. Thomas, DB-1 NRC Senior Resident Inspector Utility Radiological Safety Board
Docket Number 50-346 License Number NPF-3 Serial Number 1-1400 Attachment COMMITMENT LIST The following list identifies those actions committed to by the Davis-Besse Nuclear Power Station, Unit Number 1, (DBNPS) in this document. Any other actions discussed in the submittal represent intended or planned actions by the DBNPS. They are described only for information and are not regulatory commitments. Please notify Clark A. Price, Manager -
Regulatory Compliance (41 9-321 -8585) of any questions regarding this document or associated regulatory commitments.
COMMITMENTS A bare metal examination of the reactor pressure vessel upper head will be performed again during the Fourteenth Refueling Outage (1 4RFO), currently scheduled for Spring, 2006. The results will be reviewed to determine if there are indications of changing material conditions.
DUE DATE 14RFO
Extremely Urgent is for use with the following seNiceS:._ ur3 NWCX uay WI UPS Worldwide Expre
'UPS 2nd Day Air' 1
c-I Call I-SOO-PICK-UPS@ (1-800-742-5877) or visit UPS.com?
For UPS Next Day Air services, there is no weight limit for envelopes containing correspondence, urgent documents, and electronic media. When a UPS Next Day Air service is selected, UPS Express Envelopes containing i t e m other lhan those I'kted above are subject to the corresponding Apply shipping documents om Do not use this envelope for:
UPS Ground UPS Standard UPS 3 Day Select*
+
is no limit on the w l Do not use UPS 2nd over 13 ounces in th UPS Express Envelop to the corresponding i s
' Ai' 1&2 1BW Do not send cash or em
@ g
$ ? '...
f mils REQUIRED SATURDAY DELIVERY 17 I
12 488 556 22 1007.556 3 111 11111 llllllll111111111111lllllll Ill Ill 1111 Ill1 Ill !i I
I TELEPHONE iFlRST ENERGY CO JDAVIS-BESSE NUCLEAR POWER PLAN 12 488 566 22 1007 556 3 41 9-321 -7481 L
i P
1 JAMES L. CALDWELL, 1 REGIONAL ADMINISTRATOR U S NRG REGION I11
! LISLE IL 60532-4352 I I 11 l!
4 1 11111 556 3 11 1 I
1 2443 WARRENVILLE ROAD SUITE 210 I
lwaom3uyBB)
DATE?
- ----2*2 OF SHlPMEM,
-3 I J I I tIlleIMlioMl Shipping Notice-Carriage hereunder may be subject to the rules relating to liability and other terms and/or conditions eslabllshed by the tanvention for the Unification of Cerlain'Rules Relating to International Carriage by Ab (*e WaMW cmventlm3 rad/a*C' Contrad hx the international Carriage of Goods by Road (the "CMR Convention?. These commodilies, technology (H software were expected from the US. in accordance with the Expod Administration Regulationr Diversion Contrary to US. bw PmMbltea 010195101 11/03 BL I)aitedww