ML20132C868
| ML20132C868 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 12/13/1996 |
| From: | Terry C, Walker R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-96-001, IEB-96-1, TXX-96521, NUDOCS 9612190046 | |
| Download: ML20132C868 (4) | |
Text
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Ref. # NRCB 96 01 TUELECTRIC' December 13, 1996 C. Lance Terry Gnmp Mce President U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 AND 50 446 i
SUPPLEMENTAL RESPONSE TO NRC BULLETIN N0. 96-01:
CONTROL R0D INSERTION PROBLEMS REF:
1)
TV Electric letter logged TXX 96096 from C. L. Terry to the NRC dated April 8. 1996.
2)
TV Electric letter logged TXX 96510 from C. L. Terry to the NRC dated November 14, 1996.
Gentlemen:
i TU Electric responded to NRC Bulletin 96 01 via Reference 1.
Recuested Action (3) from the bulletin required that TU Electric measure anc evaluate at each outage of sufficient duration during calendar year 1996 (end of cycle, maintenance, etc.) the control rod drop times and rod recoil data for all control rods, and if appropriate plant conditions exist where the vessel head is removed, measure and evaluate drag forces for all rodded fuel assemblies.
Requested Action (4) from the bulletin required that for each reactor trip during calendar year 1996. TU Electric verify that all control rods promptly fully inserted (bottomed) and obtain other available information to assess the operability and any performance trend of the rods.
TU Electric obtained rod drop times, rod recoil data, and drag force data at the end of cycle for Unit 1, Cycle 5 during the fifth refueling outage for Unit 1.
The results were submitted to the NRC via Reference 2.
TV Electric subsequently obtained rod drop times, rod recoil data, and drag force data at the beginning of cycle 6 for Unit 1.
The results are jl included in Attachment 1.
During the rod drop time testing, each Rod j
Control-Cluster Assembly (RCCA) exhibited a minimum of two recoils and no significant outliers were noted in the drag force data.
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9612190046 961213 PDR ADOCK 05000445 G
PDR P. O. Box 1002 Glen Rose Texas 76M3
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Page 2 of 2 If you have any questions regarding the attached information, please contact Mr. J. D. Seawright at (817) 897 0140.
Sincerely.
e.s. t%
C. L. Terly By:
Mf
- D Roger't. Walker Regulatory Affairs Manager JDS/grp Attachment c-Mr. L. J. Callan, Region IV 4
Mr. T. J. Polich, NRR Mr. J. I. Tapia, Region IV i
Resident Inspector, CPSES a
1 i
s
1 Attachrkent 13 TXX-96321
- Pige 1 of 2 Comanche Peak - Unit 1, Cycle 06 Startup BOC Rod Core Asse Fuel Burmup Time Bank lac ID 123t (MWD /MTta (gg)
CDA 11-06 G86 Siemens 'PCA* Zirc-4 26192 1.47 CBA 11-1 0 G76 Siemens "PCA" Zirc-4 26213 1.45 i
CBA F 08 G34 Siemens "PCA* Zirc-4 26070 1.44 CBA K-08 G19 Siemens 'PCA" Zirc-4 20066 1.48 1
CBB F-02 G54 Siemens "PCA" Zirc-4 17903 1.4a CBB B-10
'G78 Siemens 'PCA* Zirc-4 17689 1.48 CBB K 14 G69 Siemens *PCA* Zirc-4 17784 1.46
)
CBB P46 G83 Siemens "PCA" Zirc-4 17726 1.45 CBB B-06 G30 Siemens 'PCA" Zirc-4 18244 1 44 CBB F-14 G61 Siemens 'PCA* Zirc-4 17798 1.45 CBB P-10 Goa Siemens "PCA* Zirc 4 18068 1.45 CBB K-02 G22 Siemens 'PCA" Zirc-4 18104 1.45 j
i CBC 11-02 G71 Siemens "PCA* Zirc-4 23607 1 46 CBC B-08 G48 Siemens "PCA* Zirc-4 23774 1.45
'i CBC 11-14 G46 Siemens 'PCA" Zirc-4 23805 1,48 CBC P-08 G82 Siemens "PCA* Zirc-4 23789 1.46 CBC F-06 G60 Siemens 'PCA" Zirc-4 25781 1.45 CBC F 10 G66 Siemens "PCA" Zirc-4 25717 1.46 CBC K 10 G55 Siemens 'PCA" Zirc-4 25754 1.47 CBC K 06 G29 Siemens *PCA* Zirc-4 25622 1.47 j
CBD D-04 God Siemens "PCA" Zirc-4 25973 1.45 CBD M-12 G67 Siemens 'PCA* Zirc-4 25897 1.48 CBD D-12 G80 Siemens 'PCA* Zirc-4 25899 1.46 CBD M-04 G31 Siemens 'PCA* Zirc-4 25798 1.51 CBD 11-0 8 C29 Westinghouse ' Standard" Zirc-4 16175 1.49 SBA D 02 G36 Siemens "PCA* Zire-4 27178 1.46 SDA B-12 G53 Siemens "PCA" Zirc-4 27286 1.46 SBA M 14 003 Siemens 'PCA" Zirc 4 27222 1.47 SBA P-04 G26 Siemens 'PCA* Zirc-4 27151 1.46 SBA B-04 G79 Siemens 'PCA" Zirc-4 26a82 1.46 SBA D-14 G68 Siemens "PCA* Zirc-4 26832 1.47 SBA P 12 G88 Siemens "PCA" Zirc4 26751 1.47 SBA M-02 G43 Siemens "PCA" Zirc-4 26870 1.46 SBB G-03 G56 Siemens 'PCA* Zirc 4 21628 1.44 SBB C-09 Gia Siemens *PCA" Zirc-4 21369 1.44 SBB J-13 G94 Siemens 'PCA" Zirc-4 21666 1.45 SBB N-07 GOS Siemens 'PCA* Zirc-4 21738 1.45 SBB C-07 G65 Siemens "PCA' Zirc-4 21992 1.47 SBB G-13 G01 Siemens 'PCA" Zirc-4 21860 1.45 SBB N-09 G17 Siemens *PCA* Zirc 4 21282 1.45 SBB J 03 G42 Siemens *PCA" Zirc-4 21983 1.44 SBC E-03 G39 Siemens 'PCA" Zirc-4 19012 1.47 SBC C-11 G35 Siemens 'PCA' Zirc-4 18892 1.45 SBC tel3 G89 Siemens "PCA" Zirc-4 187c0 1.47 53C N45 G91 Siemens "PCA" Zirc-4 18784 1.44 SBD C-05 092 Siemens *PCA* Zirc-4 1s786 1.43 SBD E-13 G72 Siemens "PCA* Zirc-4 18750 1.46 SBD N-i l
' G49 Siemens 'PCA" Zirc-4 18717 1.44 SBD L 03 G15 Siemens "PCA" Zirc-4 18681 1.45 SBE
!!-04 God Siemens "PCA' Zirc-4 23935 1.44 SBE D 08 G62 Siemens 'PCA* Zirc-4 23930 1 42 SBE 11-1 2 G24 Siemens "PCA* Zirc-4 23570 1.45 SBE M 08 G13 Siemens 'PCA* Zirc-4 23672 1 44 Average Rod Drop Time:
1.46 Standard Deviation: 0.016
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. Attachknt to TXX-96531 l
- Page 3 of 8 l
Comanche Peak - Unit I, Cycle 06 1RF05 Control Rod Drive Shaft LATCH RCCA latch Drag Force (Ibs)
[
Rod Core Assembly Fuel j
Bank Imention ID 12 Jig Dashpot Realen Out of Daanat Resiaa
)
CBA 11-06 G86 Siemens "PCA" Zirc-4 7
5 CBA 11-10 G76 Siemens 'PCA" Zirc-4 15 -
5 CBA F-08 G34 Siemens "PCA* Zirc-4 10 5
CBA K 08 019 Siemens "PCA" Zired 10 5
CBB F-02 G54
' Siemens *PCA* Zirc-4 10 5
i CBD B 10 G78 Siemens "PCA" Zirc-4 10 5
I CBB K-14 G69 Siemens *PCA' Zirc-4 15 5
.CBD P-06 G83 Siemens "PCA" Zirc4 15 5
CBB B-06 G30 Siemens "PCA" Zirc-4 5
5 CBB F-14 G61 Siemens *PCA* Zire-4 5
5 CBB P-10 008 Siemens 'PCA* Zirc-4 15 5
CBD K G22 Siemens *PCA" Zirc-4 10 10 f'
CBC 11-0 2 G71 Siemens "PCA" Zirc-4 15
'15 CBC B-08 G48 Siemens 'PCA" Zirc-4 5
0 CBC 11-14 G46 Siemens *PCA" Zirc4 15 10 CBC P-08 G82 Siemens "PCA* Zirc-4 15 10 CBC F-06 G60 Siemens "PCA" Zirc-4 15 10 CBC F 10 G66 Siemens "PCA" Zirc-4 5
0 CBC K 10 G55 Siemens "PCA" Zirc-4 30 5
CBC K 06 G29 Siemens 'PCA* Zirc-4 15 5
CBD D-04 G64 Siemens "PCA* Zirc-4 15 15 CBD M-12 G67 Siemens "PCA" Zirc-4 15 10 CBD D-12 G80 Siemens 'PCA" Zirc-4 15 10 CBD M-04 031 Siemens *PCA" Zirc-4 15 10 CBD 11-08 C29 Westinghouse " Standard" Zirc-4 7
5 SDA D-02 G36 Siemens *PCA" Zirc-4 15 10 SBA B-12 G53 Siemens "PCA" Zire-4 10 5
SBA M-14 G03 Siemens 'PCA' Zirc-4 10 5
SBA P-04 G26 Siemens "PCA" Zirc-4 15 5
SBA.
B-04 G79 Siemens "PCA* Zirc-4 15 10 SBA D-14 G68 Siemens "PCA" Zirc-4 10 5
SBA P-12 G88 Siemens "PCA* Zirc-4 15 5
SBA M 02 043 Siemens "PCA* Zirc-4 15 5
SBB G-03
- G56 Siemens "PCA* Zirc4 10 10 SBB C-09 GI8 Siemens 'PCA* Zirc-4 10 5
SBB J-13 G94 Siemens 'PCA' Zirc-4 15 10 SBB N-07 GOS Siemens "PCA" Zirc-4 20 5
SBB C-07 065 Siemens *PCA* Zirc-4 5
5 SBB G 13 001 Siemens *PCA" Zirc-4 10 0
SBB N-09 Gl?
Siemens "PCA* Zirc-4 25 10 SBB J-03 G42 Siemens "PCA* Zirc-4 10 5
SBC E-03 G39 Siemens "PCA" Zirc-4 10 5
-SBC C-Il G35 Siemens *PCA" Zirc-4 10 5
SBC 1-13 G89 Siemens *PCA* Zire-4 15 10 SBC N-05 G91 Siemens "PCA* Zirc-4 15 5
SBD C-05 092 Siemens "PCA' Zirc-4 5
5 SBD E-13 G72 Siemens *PCA" Zirc-4 10 5
SBD N-il G49 Siemens "PCA* Zarc-4 25 10 SBD L 03 GI5 Siemens *PCA" Zirc-4 10 5
SBE 11 04 -
0 04 Siemens "PCA* Zirc-4 10 10 SBE D48 G62 Siemens 'PCA" Zirc-4 20 10 SBE 11-12 G24 Siemens *PCA* Zirc-4 15 10
('
SBE M-08 Gl3 Siemens "PCA" Zirc4 15 5
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