CNRO-2003-00039, Entergy Operations, Inc. - Relaxation Request to NRC Order EA-03-009 for Control Element Drive Mechanism Nozzles
| ML032651025 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 09/12/2003 |
| From: | Krupa M Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| CNRO-2003-00039, EA-03-009 | |
| Download: ML032651025 (6) | |
Text
Entergy Operations, Inc.
1340 Echelon Parkway
'-Enterg.y Jackson, MS 39213-8298 Tel 601 368 5758 Michael A. Krupa Director Nuclear Safety & Licensing CNRO-2003-00039 September 12, 2003 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
SUBJECT:
Enteqypeationgs Inc.
Relaxation Request to NRC Order EA-03-009 for Control Element Drive Mechanism Nozzles Arkansas Nuclear One, Unit 2 Docket No. 50-368 License No. NPF-6
REFERENCE:
Entergy Operations, Inc. letter CNRO-2003-00033 to the NRC, "Relaxation Requests to NRC Order EA-03-009," dated August 27, 2003
Dear Sir or Madam:
In the referenced letter, Entergy Operations, Inc. (Entergy) requested relaxation from Section IV.C(1)(b) of NRC Order EA 03-009 for Arkansas Nuclear One, Unit 2 (ANO-2) via Relaxation Request #1., Specifically, the bottoms of the ANO-2 control element drive mechanism (CEDM) nozzles contain threads that cannot be effectively examined in accordance with Section IV.C(1)(b). The request proposed a three-step alternative based on ultrasonic testing, stress analysis, and augmented inspections utilizing a sampling plan.
lan a telephone c-onfererce herd onrSeptemb(r92U3 r6p
`tatiW mrthWNRC Staff and Entergy discussed this request. As a result of that discussion and by this letter, Entergy amends Relaxation Request #1. Specifically, Entergy will not utilize a sampling plan and proposes to perform augmented inspections of the 75 CEDM nozzles that did not pass analysis (identified in Table 1 of Relaxation Request #1). The enclosed Table 1 to ANO-2 Relaxation Request #1 replaces the previous Table 1 submitted in the referenced letter.
This letter contains no new commitments.
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CNRO-2003-00039 Page 2 of 2 If you have any questions or require additional information, please contact Guy Davant at (601) 368-5756.
Sincerely, MAKIGHD/bal
Enclosure:
Table 1 to ANO-2 Relaxation Request #1 cc:
Mr. C. G. Anderson (ANO)
Mr. W. A. Eaton (ECH)
Mr. G. A. Williams (ECH)
Mr. T. W. Alexion. NRR Project Manager (ANO-2)
Mr. R. L. Bywater, NRC Senior Resident Inspector (ANO)
Mr. T. P. Gwynn, NRC Region IV Regional Administrator
ENCLOSURE
-CNRO-2003-00039 ARKANSAS NUCLEAR ONE, UNIT 2 TABLE 1 TO RELAXATION REQUEST #1
l TABLE I Evaluation of CEDM Nozzles for Augmented Inspection CEDM Nozzle CEDMWNozzle Heat Selected for Augmented Insection Boundary 0: i it V0:;:4ii;0 n
Nurmber formaion:
Augmented rfrnced from bottom of nozze No.i Head:
Heat Yiel History of Inspection (1)
Top Bottom Axial Length AzimuthalLocation and,
- iAngley iNumber Strnth PWSCC (
Elevation Ee a Circumferential Extent 1
00 A6953 42.5 kMi No Yes 1.544" 1.090",
0.454" Downhill +/- 1800 2
8.80 A6953 4iz5si No Yes 1.544" 1.090w.
0.454" Downhill +/- 67;50 3
8.8° A6953 42.5 ksi No Yes 1.544" 1.090" 0.454" Downhill i 67.50 4
8.8° A6953 42.5 ksi No Yes 1.544" 1.090" 0.454" Downhill +/- 67.50 5
8.8° A6953 42.5 ksi No Yes 1.544" 1.090" 0.454" Downhill i 67.50 6
12.40 A6953 42.5 ksi No No N/A N/A K, N/A N/A 7
12.40 A6954 35.0ksi No No N/A N/A N/A N/A 8
12.40 A6954 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 9
12.4° A6953 42.5Gksi No No N/A N/A N/A N/A 10 17.70 A6953 42.5 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 11 17.70 A6954 35.0 ksi No Yes 1.54 1.224" 0.320" Downhill +/- 22.50.
12 17.7° A6954 35.0 ksi No Yes 1.544" 1.224"l 0.320" Downhill +/- 22.50 13 17.70 A6954 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 14 19.90 A6954 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 15 19.90 A6955 40.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 16 19.90 A6955 40.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 17 19.90 A6955 40.0 Isi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 18 19.90 A6954 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.5° 19 19.9° A6955 40.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 20 19.90 A6955 40.0 ksi No No N/A NIA N/A N/A 21 19.90 A6955 40.0 ksi No Yes 1.544" 1.224".
0.320" Downhill +/- 22.50 22 25.50 A6926 39.5 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 23 25.50 A6926 39.5 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 24 25.50 A6785 56.0 ksi Yes Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 25 25.50 A6785 56.0 ksi Yes No N/A N/A N/A N/A 26 27.20 A6777 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 27 27.20 A6777 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 Page 2 of 4
CEDM Nozz C
N e H Selected for AugmentedInspectiohn Boundary V;
Number lnrmation Augmented
(
brefeencedffrm bottom of No.
Head Heat:
Yield' History of Inspection 1)
Top Bottom Axial Length' Azimuthal Location gnd
___Angle Number Strnh PWScCC(2)
Elevation.
Ele'vation Circumferential Extent 28 27.20 A6953 42.5 ksi No Yes 1.544" 1.224"'
0.320" Downhill +/- 22.50 29 27.20 A6953 42.5 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 30 28.80 A6926 35.0 ksi No Yes 1.544" 1.224' 0.320" Downhill +/- 22.50 31 28.80 A6926 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 32 28.80 A6926 35.0 ksi No Yes 1.544" 1.2240 0.320" Downhill +/- 22.50 33 28.80 A6926 35.0'ki No Yes 1.544" 1.224-",
0.320" Downhill +/- 22.50 34 28.80 A6926 35.0 ;isi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.5° 35 28.8° A6926 35.0'ksi No, Yes 1.544" 1.224" 0.320" Downhill +/- 22.50 36 28.80 A6926 35.0 ksl No Yes 1.544" 1.224' 0.320" Downhill +/- 22.50 37 28.80 A6926 35.0 ksi No Yes 1.544" 1.224" 0.320" Downhill +/- 22.5°0 38 33*3 A6954 735.0 k3 i No Yes 1.544" 00.883 0.661" Downhill +/- 45.00 39 33.30 A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill 45.00 40 33.3° A6954 35.0 ksi No Yes 1.544" 0.883' 0.661" Downhill i 45.00 41 33.30 A6954 35.0 ksi No Yes 1.544" 0.883*
0.661" Downhill i 45.00 42 33.30 A6954 35.0 ksi No Yes 1.544" 0.883" 0.66 1" Downhill i 45.00 43 33.30 A6954 35.0 Ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 44 33.30 A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 45 33.30 A6954 35.0 ksi
- No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 46 37.60 A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 47 37.6° A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill i 45.00 48 37.6° A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 49 37.6° A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 50 38.90 A6954 35.0ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 51 38.9° A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 52 38.90 A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 53 38.9° A6954 35.0 ksi No Yes 1.544" 0.883"r 0.661" Downhill +/- 45.00 54 38.9° A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 55 38.90 A6954 35.0 ksi No Yes 1.544" 0.883"i 0.661" Downhill +/- 45.00 56 38.90 A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 57 38.9° A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 58 40.30 A6953 42.5 ksi No No N/A N/A N/A N/A 59 40.3w A6953 42.5 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 Page 3 of 4
1soi CECM Nozzle Nozzle Heat Selected for Aug iented Inspection' Boundary i; i:; f ;; : ; Nu mber Information-X, t:
- i
- Augmentedi J
5 i 0 i L t~referncf dfrombottomfofonozzle)
N No.
Head Heat
- Yield, History of Inspection 1
Top Bottom Axial Length Azimuthal Location and Angle Number Strength PWSCC Elevation.
Elevation Circumferential Extent 60 40.30 A6953 42.5 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 61 40.30 A6953 42.5 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 62 43.00 A6953 42.5 ksi No Yes 1.544" 0.883' 0.661" Downhill +/- 45.00 63 43a0w A6953 42.5 ksi No Yes 1.544" 0.883T 0.661" Downhill +/- 45.00 64 43.00 A6953 s42.5 si No Yes 1.544" 0.883-0.661" Downhill +/- 45.00 65 43.00 A6953 42.si No Yes 1.544" 0.883",
0.661" Downhill +/- 45.00 66 43.00 A6953 42.5 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 67 43.00 A6953 42.5 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.0 68 43.00 A6953 42.5 ksi No Yes 1.54 0.883" 0.661" Downhill +/- 45.00 69 43.01 A6953 42.5 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 70 49.63 A6955 40.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.0° 71 49.6° A6955 40.0 ksi No Yes 1.544" 0.883".
0.661" Downhill +/- 45.00 72 49.6 693
- 4.
i No Yes 1.544"e
- 0.
0.661" Downhill +/- 45.00 73 49.60 A69554 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 74 49.6° A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 75 49.60 A6955 40.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.0° 76 49.60 A6953 42.5 ksi No Yes 1.544" 083" 0.661" Downhill +/- 45.00 77 49.60 A6955 40.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 78 49.60 A6953 42.5 ksi o--
N Yes 1.544" 0.883" 0.661" Downhill +/- 45.0° 79 49.6° A6955 40.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 80 49.60 A6955 40.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 81 49.60 A6954 35.0 ksi No Yes 1.544" 0.883" 0.661" Downhill +/- 45.00 Page 4 of 4