ML20134M263
| ML20134M263 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 11/14/1996 |
| From: | John Marshall, Terry C TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-96-001, IEB-96-1, TXX-96510, NUDOCS 9611220290 | |
| Download: ML20134M263 (4) | |
Text
.......
~
-.. ~ -.. - -.. -
e u ;r summmmmmmu
}.
==
i Log # TXX 96510
- =
O File # 10119 4
C Ref. # NRCB 96 01 i.
RIELECTRIC 1
November 14, 1996 l
i U. S. Nuclear Regulatory Commission j
Document Control Desk l
Washington, DC 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50 445 AND 50-446 SUPPLEMENTAL RESPONSE TO NRC BULLETIN NO. 96 01:
CONTROL ROD INSERTION PROBLEMS 1
REF:
TU Electric letter logged TXX 96096 from C. L. Terry to the NRC dated April 8, 1996.
Gentlemen:
TU Electric responded to NRC Bulletin 96 01 via Reference 1.
Requested i
Action (3) from the bulletin required that TU Electric measure and evaluate at each outage of sufficient duration during calendar year 1996 (end of cycle, maintenance, etc.) the control rod drop times and rod l
l 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.
l 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 fifi.h refueling outage for Unit 1.
The results have been included in Attachment 1.
During the I
rod drop time testing, each Rod Cordrol Cluster Assembly (RCCA) exhibited a minimum of two recoils and no significant outliers were noted in the i
drag force data.
l f
9611220290 961114 PDR ADOCK 05000445 G
PDR 920068 P.O. Box 1002 Glen Rose. Texas 760431002
~
g-6 TXX 96510 Page 2 of 2 If you have any questions regarding the attached information, please j
contact Mr. J. D. Seawright at (817) 897 0140.
Sincerely.
i C. L. Terry A
By: ~
I J. S. Marshall Generic Licensing Manager JDS/grp Attachment t
i i
c-Mr. L. J. Callan Region IV Mr. T.-J. Polich. NRR Mr. J. I. Tapia, Region IV Resident Inspector CPSES I
i i
i i-2 1
l
Attachment to TXX 96510
Red Core Assia Fuel Burump Time
'Burump Tlsme Burump Time Bank Lag 10 Iyag fMWD/MTth lang)
(MWD /MTti (asE.}
(MWD /MTil (3gg)
CBA H-06 ~ F63 Siemens "PCA* Zirc-4 22780 1.45 37356 I.49 44970 1.51 CBA H-10 F81 Siemens *PCA* Zirc 4 23180 1.46 37699 1.49 45307 1.51 CBA F 08 F53 Siemens "PCA* Zirc-4 23030 1.43 37645 1,48 45236
'l.45 CBA K-08 Fil Siemens 'PCA* Zirc-4 22803 1.48 37357 1.46 44921 1.49 CBB F-02 F75 Siemens "PCA* Zirc-4 16316 l.49 30013 1.51 36900 1.52 CBB B-10 F65 Siemens 'PCA* Zirc4 16620 1.45 30300 1.47 37118 1.49 CBB K 14 F04 Siemens "PCA* Zirc-4 16830 1.46 30554 1.47 37481 1.48 CBB P 06 F40 Siemens "PCA* Zirc4 16435 1.44 30184 1.45 37090 1.44 CBB B-06 F39 Siemens 'PCA* Zirc-4 16169 1.43 29974 1.48 36949 1.43 CBB F 14 F58 Siemens "PCA" Zirc-4 16387 1.45 30332 1.46 37332 1.46 CBB P 10 F61 Siemens "PCA* Zirc-4 16970 1.46 30571 1.45 37416 1.46 CBB K 02 F37 Siemens 'PCA" Zirc4 16656 1.46 30563 1.47 37585 1.47 CBC H-02 F20 Siemens "PCA" Zirc4 20665 1.46 34055 1.47 40814 1.47 CBC B-08 F34 Siemens "PCA* Zirc-4 21081 1.44 34378 1.46 41154 1.46 CBC H 14 F01 Siemens *PCA* Zirc4 20916 1.47 34084 1.47 40811 1.47 CBC P 08 F48 Siemens PCA"Zirc 4 20810 1.45 33949 1.45 4 % 32 1.45 CBC F 06 F13 Siemens *PCA* Zirc4 20842 1.41 35651 1.47 43523 1.48 CBC F-10 F73 Siemens "PCA* Zirc-4 21092 1.43 35954 1.47 43844 1.48 CBC K-10 F24 Siemens "PCA" Zirc4 20963 1.46 35834 '
l.50 43769 1.46 CBC K-06 Fl6 Siemens *PCA' Zirc-4 20758 1.45 35595 1.46 43487 1.48 CBD D-04 F27 Siemens *PCA" Zire-4 19016 1.46 33606 1.45 41117 1.46 CBD M-12 F55 Siemens *PCA* 2irc4 19269 1.46 33966 1.45 41499 I.48 CBD D-12 F02 Siemens "PCA* Zirc-4 19225 1.45 33950 1.45 41534 1,46 CBD M-04 F82 Siemens *PCA" Zirc-4 19273 1.49 33815 1.52 41302 1.47 CBD H-08 C53 Westinghouse " Standard" Zirc-4 16107 1.46 29521 1.50 36453 1.50 SBA D.02 F46 Siemens 'PCA* Zirc4 23425 1.46 31448 1.47 35864 1.49 SBA B-12 F30 Siemens *PCA* Zirc-4 23198 1.47 31160 1.47 35489 1.46 SBA M-14 F60 Siemens *PCA* Zirc-4 23144 1.46 31201 1.47 35588 1.45 SBA P 04 F50 Siemens *PCA' Zirc-4 23108 1.47 31251 1.46 35719 1.45 SilA B-04 F87 Siemens *PCA* Zirc-4 23431 1.44 31509 1.47 35910 1.46 SBA D-14 F68 Siemens *PCA' Zirc-4 23359 I.47 31444 1.48 35884 1.48 SBA P 12 F08 Siemens *PCA" Zirc.4 23691 1.48 31733 1.48 36111 1.48 SBA M-02 F71 Siemens "PCA" Zirc4 23450 1.46 31450 1.46 35770 1.47 SBB G 03 F36 Siemens *PCA* Zirc-4 20281 1.45 34688 1.47 42215 1.47 SBB C-09 F41 Siemens 'PCA" Zirc-4 20012 1.43 34462 1.48 41988 1.48 SBB J 13 f86 Sienns "PCA* Zirc4 20203 1.44 34568 l.46 42108 1.46 SBB N-07 Fl8 Siemens *PCA* Zirc-4 19974 1.45 34308 1.47 41813 1.46 SBB C-07 F28 Siemens "PCA* Zirc-4 19959 1.47 34388 1.47 41909 1.47 SBB G-13 F66 Siemens 'PCA" Zirc-4 20099 1.48 34485 1.48 42008 1.49 SBB N49 F33 Siemens 'PCA" Zirc4 20211 1.45 34458 1.45 41896 1.46 SBB J-03 F67 Siemens 'PCA' Zirc-4 20145 1.43 34589 1 45 42124 1.47 SBC E-03 F14 Siemens "PCA* Zirc-4 13121 1.46 28298 1.45 36082 1.48 SBC C-il F69 Siemens *PCA* Zirc-4 12775 1.45 28218 1.44 36126 1.47 SBC L 13 F74 Siemens 'PCA' Zirc-4 13069 1.45 28541 1.45 36438 1.46 SBC N 05 F54 Siemens 'PCA* Zirc-4 13106 1.45 28329 1.46 36116 1.46 SBD C-05 F72 Siemens 'PCA* Zirc-4 13223 1.43 28657 1 45 36543 1.48 SBD E 13 F57 Siemens *PCA* Zirc-4 13402 1.46 28779 1.47 36621 1.46 SBD N-Il FI5 Siemens "PCA" Zirc4 12979 1.44 28403 1.45 36165 1.45 SBD L 03 F79 Siemens "PCA" Zirc-4 13073 1.44 28392 1.46 36231 1.47 SBE H-04 F10 Siemens "PCA* Zirc-4 22759 1.45 37159 1.48 44703 1.48 SBE D-08 F23 Siemens *PCA* Zirc-4 22916 1.45 37377 1.45 44936 1.45 SBE H-12 F42 Siemens 'PCA* Zirc-4 23042 1.47 37316
'.4 8 44822 1.48 SBE M 08 Fl2 Siemens 'PCA" Zirc4 22931 1.47 37242
. 44 44742 1.45 Average Rod Drop Time:
1.45 1.47 f.47 Standard Deviation: 0 016 0.017 0.018
=
Attachment to TXX 96510
! 1 Page 2 of 2,
l-
~ Comanche Peak - Unit 1, Cycle 05 1RF05 Control Rod Drive Shaft UNLATCH 10/5/1996 (EOC)
RCCA Laten Drag Force (Ibs)
Rod Core Assembly Feet jaak facatina ID Iyjag Dashpot Region Out of P '" Realan CBA S 06 F63 Siemens "PCA* Zirc-4 33 35 CBA 4 10 F81 Siemens "PCA* Zirc-4 25 25 CBA F-08 F53 Siemens 'PCA* Zirc-4 0
5 CBA K-08 Fil Siemens *PCA' Zirc-4 '
10 15 CBB F-02 F75-Siemens *PCA' Zirc 4 15
-20 CBB B-10 F65 Siemens 'PCA* Zirc-4 5
10 CBB K 14 F04 Siemens 'PCA* Zirc-4 30 20 4
CBB P-06 F40 Siemens "PCA* Zirc-4 10 3
CBB B 06 F39 Siemens 'PCA" Zirc-4 12 18 CBD F-14 F58 Siemens "PCA* Zirc-4 10 10 CBD P-10 F61 Siemens "PCA* Zirc-4 5
10 CBB K-02 F37 Siemens "PCA* Zirc-4 10 10 CBC-H42 F20 Siemens 'PCA' Zirc-4 10 10 CBC B-08 F34 Siemens *PCA' Zirc4 10 15 CBC H-14 Foi Siemens *PCA* Zirc-4
'5 10 CBC P-08 F48 Siemens 'PCA* Zirc4 5
5 CBC F-06 F13 Siemens 'PCA* Zirc4 25
' 3a l
CBC F-10 F73 Siemens "PCA* Zirc-4 10 15 CBC K-10 F24 Siemens 'PCA* Zirc-4 20 20 CBC K-06 F16 Siemens "PCA* Zirc-4 30 35 CBD D 04 F27 Siemens "PCA* Zi:c-4 15 20 CBD M-12 F55 Siemens "PCA* Zirc-4 30 20 CBD D 12 F02 Siemens "PCA" Zirc-4 20 25 CBD-M-04 F82 Siemens "PCA* Zirc-4 25 15 CBD H-08 C53 Westinghouse ' Standard" Zirc-4 35 SBA D 02 F46 Siemens "PCA* Zirc-4 5
10 l
SBA B-12 F30 Siemens 'PCA* Zirc-4 5
11 SBA M-14 F60 Siemens 'PCA* Zirc-4 5
5 SBA P-04 F50 Siemens "PCA" Zirc-4 10 5
SBA B-04 F87 Siemens "PCA" Zirc-4 9
14
)
SBA D-14 F68 Siernens 'PCA* Zirc-4 10 15 SBA P-12 F08 Siemens "PCA" Zirt-4 10 10 SBA M 02 F71 Siemens "PCA* Zirc-4 10 10 SBB G.03 F36 Siemens "PCA* Zirc-4 20 20 SBB C 09 741 Siemens *PCA* Zirc-4 5
10 SBB J-13 F86 Siemens "PCA' Zirc-4 15 15 SBB N-07 F18 Siemens *PCA' Zirc-4 20 15 SBB C 07 F28 Siemens *PCA' Zirc4 7
12 SBB G-13 F66 Siemens 'PCA* Zirc4 10 15 SBB N-09 F33 Siemens "PCA* Zirc-4 10 10 SBB J-03 F67 Siemens 'PCA" Zirc 15 15 SBC E-03 F14 Siemens 'PCA* Zirc-4 15 20 SBC C 1I F69 Siemens "PCA* Zirc4 8
13 SBC L 13 F74 Siemens "PCA* Zirc-4 15 20 SBC N-05 F54 Siemens "PCA* Zirc-4 25 20 SBD C 05 F72 Siemens *PCA* Zirc-4 15 17 SBD E 13 F57 Siemens 'PCA* Zirc4 15 20 SBD N-i l FIS Siemens *PCA* Zirc4 25 20 SBD
!<03 F79 Siemens 'PCA* Zirc-4 20 15 SBE H-04 FIO Siemens "PCA* Zirc-4 25 25 SBE D-08 F23 Siemens *PCA* Zirc-4 10 15 SBE H-12 F42 Siemens 'PCA' Zirc-4 15 20 SBE M-08 F12 Siemens "PCA" Zirc-4 2'
20