View source for L-10-013, Steam Generator Tube Inspection Report - Technical Specification 5.6.6.2.4

{{Adams
| number = ML100491087
| issue date = 02/11/2010
| title = Steam Generator Tube Inspection Report - Technical Specification 5.6.6.2.4
| author name = Harden P
| author affiliation = FirstEnergy Nuclear Operating Co
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000412
| license number = NPF-073
| contact person = 
| case reference number = L-10-013
| document type = Letter type:L
| page count = 7
}}

=Text=
{{#Wiki_filter:.1 FENOC                                                                               Beaver Valley Power Station FirstEnergyNuclear Operating Company                                                                P.O. Box 4 Shippingport,PA 15077 PaulA. Harden                                                                                  724-682-5234 Site Vice President                                                                       Fax: 724-643-8069 February 11,        2010 L-10-013 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001

==SUBJECT:==

Beaver Valley Power Station, Unit No. 2 Docket No. 50-412, License No. NPF-73 Steam Generator Tube Inspection Report- Technical Specification 5.6.6.2.4 In accordance with Technical Specification 5.6.6.2.4, FirstEnergy Nuclear Operating Company hereby submits a report containing tube inspection results for Beaver Valley Power Station, Unit No. 2, steam generators. The attachment to this letter provides information required by the technical specification that was obtained during inspections conducted during the fall 2009 refueling outage.
There are no regulatory commitments contained in this letter. If there are any questions or if additional information is required, please contact Mr. Thomas A. Lentz, Manager -
Fleet Licensing, at (330) 761-6071.
Paul A. Harden

==Attachment:==

Beaver Valley Power Station Unit No. 2 Steam Generator Tube Inspection Report

Beaver Valley Power Station, Unit No. 2 L-10-013 Page 2 cc:  Nuclear Regulatory Commission Region I Administrator Nuclear Regulatory Commission Resident Inspector Nuclear Reactor Regulation Project Manager Director Bureau of Radiation Protection/Department of Environmental Protection (BRP/DEP)
Site BRP/DEP Representative

Attachment L-10-013 Beaver Valley Power Station Unit No. 2 Steam Generator Tube Inspection Report Page 1 of 5 This report is provided pursuant to Technical Specification (TS) 5.6.6.2.4 with respect to steam generator (SG) tube inspections conducted during the fall 2009 refueling outage (2R14).
During the 2R14 outage, the Plus Point probe was used to inspect the hot leg top of the tubesheet region.
The inspection scope was 100 percent of the active hot leg tubes in all SGs. The inspection distance was from 6.0 inches above the top of tubesheet to 3.0 inches below the top of tubesheet, including examination of the F* distance below the bottom of roll expansion transition. Ten tubes with roll expansion transitions at lower than nominal elevations were inspected to a depth of 5.0 inches below the top of tubesheet to ensure that the F* distance was adequately examined.
Tables A through C provide tabulations of inspection results found in the tubesheet region. Consistent with the reporting requirements of TS 5.6.6.2.4, each of the tables provides the following information for the respective SG:
: a. Total number of indications, location of each indication, orientation of each indication, severity of each indication, and whether the indications initiated from the inside or outside surface,
: b. The cumulative number of indications detected in the tubesheet region as a function of elevation within the tubesheet,
: c. The projected end-of-cycle accident-induced leakage from tubesheet indications.
All indications observed were plugged upon detection. All circumferential indications were stabilized prior to installing the hot leg plug. None of the indications that were removed from service during 2R14 represented a leakage potential at postulated main steam line break conditions during Cycle 14.
Tables D through F provide inspection results for indications found in non-tubesheet regions of the SGs.
The following is a summary of the degradation observed during the 2R14 tubesheet region examinations.
SG "A"Hot Leg:
Thirty-six tubes were plugged for indications reported during the hot leg tubesheet region examination.
Of the 36 tubes, 33 tubes were reported with either single or multiple circumferential outside diameter stress corrosion cracking (ODSCC) indications located at or slightly below the top of tubesheet, 2 tubes were reported with single axial ODSCC indications located above the top of tubesheet, and 1 tube was reported with a single circumferential ODSCC indication located above the top of tubesheet. Table A provides a tabulation of these results.

Attachment L-10-013 Page 2 of 5 Table A 2R14 Tubesheet Indications - SG A Indication Location                                      Severity'          Initiation Axial     Arc      Surface/   Projected Orientiation*
SG     Row       Column        Elevation*                     Volts Length    Length  Degradation Leakage A       2          46         TSH +0.02"         SCI          0.09             560     ODSCC         0 A       4          30         TSH -0.06"         SCO          0.18             2010    ODSCC         0 A       5          37         TSH -0.02"         SCI          0.16             400     ODSCC         0 A       6          31  .      TSH -0.09"         SCI          0.13             430     ODSCC         0 A       7          56         TSH -0.04"         SCI          0.25             1370    ODSCC         0 A      10          53         TSH -0.03"         SCI          0.14             630     ODSCC         0 A      10          65         TSH -0.11"         scI          0.11             71&deg;     ODSCC         0 A      12          43    . TSH -0.10"         scI          0.16             460     ODSCC         0 A      17          41         TSH -0.09"         SCI          0.13             40'     ODSCC         0 A      17          42         TSH -0.13"         SCI          0.15             151'    ODSCC         0 A   . 18           77        TSH -0.10"         SCI          0.13             500     ODSCC         0 A      20           34        TSH -0.17"         SCI          0.16             59'     ODSCC         0 A      21           20        TSH -0.11"         SCI          0.17             630     ODSCC         0 A      21           23        TSH -0.13"         SCI          0.15             1000    ODSCC         0 A      23           25        TSH -0.13"         SCo          0.10             590     ODSCC         0 A      23           73        TSH -0.06"         MCI          0.15             1580    ODSCC         0 A      25           24        TSH -0.16"         SCI          0:09             1080    ODSCC         0 A      25           27        TSH -0.12"         SCI          0.11             40'     ODSCC         0 A      25           71        TSH -0.0T'         SCI          0.13             200     ODSCC         0 A      26           23        TSH -0.10"         ScI          0.33             1670    ODSCC         0 A      27           20        TSH -0.15"         MCI          0.13             1240    ODSCC         0 A      28           22        TSH -0.11"         MCI          0.13             1640    ODSCC         0 A      30           69        TSH -0.05"         SCI          0.24             840     ODSCC         0 A      31           37        TSH -0.12"         MCI          0.09             1260    ODSCC         0 A      31           71        TSH -0.07"         SCI          0.26             1990    ODSCC         0 A      31           75        TSH -0.107         SCI          0.09             480     ODSCC         0 A      33           51        TSH -0.13"         SCI          0.05              300    ODSCC         0 A      36           35        TSH -0.04"         MCI          0.11             900     ODSCC,        0 A      36           45        TSH -0.07"         SCI          0.24             175'    ODSCC         0 A      36           68        TSH -0.05"         MCI          0.26             1210. ODSCC         0 A      37           58        TSH +0.73"         SAI          0.09  0.22"              ODSCC         0 A      38           29        TSH +0.64"         SAI          0.09  0:38"              ODSCC         0 A -    39           44        TSH -0.07"         SCI          0.14             450     ODSCC         0 A      41           48        TSH -0.02"         SCI          0.31             1030    ODSCC         0 A      42           46        TSH +0.00"         SCI          0.14             1100    ODSCC         0 A      42           47        TSH -0.03"         SCI          0.10              21o    ODSCC         0 TSH - Tubesheet (hot leg)
MCI - Multiple circumferential indications SAI - Single axial indication SCI - Single circumferential indication Reported using the 300 kHz Plus Point coil

Attachment L-10-013 Page 3 of 5 SG "B" Hot Le6q:
Eighteen tubes were plugged for indications reported during the hot leg tubesheet region examination. Of the 18 tubes, 11 tubes were reported with either single or multiple circumferential ODSCC indications located at or. slightly below the top of tubesheet, 5 tubes were reported with single axialODSCC indications locatedabove the top of tubesheet, and 2 tubes were reported with single circumferential ODSCC indications located above the top of tubesheet. Table B provides a tabulation of these results.
TableeB 2R14 Tubesheet Indications - SG B Indication Location                                           Severity***               Initiation Projected SG   Row        Column        Elevation*     Orientiation**            Axial,      Arc           Surface/    Leakage Volts   Length      Length       Degradation  Leakage B     5             39      TSH +0.56"           SAI.          0.25    0.36"                     ODSCC         0 B     6             54      TSH +0.10"           SAI           0.14    0.16"                     ODSCC         0 B     8             36      TSH -0.17"           MCI           0.19                  91&deg;         ODSCC         0 B     9             34      TSH -0.08"           MCI           0.19                  90&deg;         ODSCC         0 B     9            41       TSH -0.07"           SCI           0.10                  33"         ODSCC         0 B    10            42       TSH +0.03"           SCI           0.12                  103"        ODSCC         0 B    11           .48       TSH -0.05"           SCI           0.14                  103"        ODSCC         0 B    16             11      TSH -0.09"           SCI           0.10                  23"         ODSCC         0 B    17             26      TSH +0.09"           SAI           0.19    0.21"                     ODSCC         0 B    17            .27      TSH +0.07"           SAI           0.24    0.21"                     ODSCC         0 B    17             30      TSH -0.12"           SCI            0.07                 770         ODSCC         0 B    18             27  . TSH +0.04"           SAI            0.16   0.28"                     ODSCC         0 B    20             43. TSH  -0.11"          MCI          .0.11                  170"        ODSCC         0 B    30             49      TSH  +0.03"          SCI            0.09                 112"        ODSCC         0 B    32             38      TSH  -0.03"          SCI            0.15                 27"         ODSCC         0 B    32             46      TSH  -0.04"          SCI            0.10                 133"        ODSCC         0 B    35             46      TSH  -0.11"          SCI            0.11               . 40"         ODSCC         0 B    36             52      TSH  -0.15"          SCI            0.16                 96          QODSCC        0
* TSH - Tubesheet (hot leg)
**   MCI - Multiple circumferential indications SAI - Single axial indication SCI - Single circumferential indication Reported. using the 300 kHz Plus Point coil t--"

Attachment L-10-013 Page 4 of 5 SG "C" Hot Leq:
Twenty-five tubes were plugged for indications reported during the hot leg tubesheet region examination.
Of the 25 tubes, 23 tubes were reported with either single or multiple circumferential ODSCC indications located at or slightly below the top of tubesheet, 1 tube Was reported with a single axial ODSCC indication located above the top of tubesheet, and 1 tube was reported with a single circumferential ODSCC indication located above the top of tubesheet. Table C provides a tabulation of these results..
TableC 2R14 Tubesheet Indications - SG C Indication Location                                          Severity'                 Initiation    Projected SG    Row       Column        Elevation*     Orientiation**           Axial        Arc           Surface/        Leakage Volts  Length       Length       Degradation     Leakage C      1          55         TSH -0.10"           SCI          0.24                 1620         ODSCC             0 C      2          53         TSH -0.12"           SCI          0.11                  46'         ODSCC             0 C      4          30         TSH -0.13"          MCI           0.12                 117'         ODSCC             0 C      5          20         TSH -0.09"         . SCI          0.08                  78'         ODSCC             0 C      6          40         TSH +0.55"           SAI          0.29    0.51".                    ODSCC             0 C      7           57        TSH -0.09"           SCI          0.22                 115o         ODSCC             0 C      9           70        TSH -0.12"           SCI          0.17                  81.'        ODSCC             0 C     11          44         TSH-0.14"            SCI          0.20                  750         ODSCC             0 C     15          21         TSH -0.04"           SCI          0.12                  92"         ODSCC             0 C     15          24         TSH +0.00"           SCI          0.17                  62"         ODSCC             0 C     15'         41         TSH -0.09"           SCI          0.16                 134'         ODSCC            .0 C     16          24         TSH -0.05"           SCI          0.06                  23'         ODSCC             0 C     18          49         TSH -0.07"           SCI          0.12                 106"         ODSCC             0 C     19          60         TSH -0.10 '          SC.          0.16                  65"         ODSCC             0 C_    19           70        TSH -0.06"           SCI          0.17                  56"         ODSCC             0.
C     21           39        TSH +0.09"           SCI          0.14                  43"         ODSCC             0 C     28           25        TSH -0.19"           MCI          0.09                  155"        ODSCC'            0 C     29          42         TSH -0.09"           SCI          0.11                  36"         ODSCC             0 C     33           66        TSH -0.11"           SCI          0.14                  39"         ODSCC             0 C     34          48         TSH  -0.08"          SCI          0.12                  39"         ODSCC             0 C     34           52        TSH  -0.12"          SCI          0.09                  24"         ODSCC          . 0 C     35          47         TSH  -0.11"          SCI          0.11                  39"         ODSCC             0 C     35          49         TSH  -0.11"          SCI          0.15                  50'         ODSCC             0 C     36           54        TSH  -0.10"          SCI          0.05                  18"         ODSCC     .       0 C     37           58        TSH  -0.09"          SCI          0.13                  62"         ODSCC             0
* TSH-- Tubesheet (hot leg)
**    MCI - Multiple circumferential indications SAI - Single axial indication SCI - Single circumferential indication Reported using the 300 kHz Plus Point coil

Attachment L-10-013 Page 5 of 5 Non-Tubesheet Region:
Tables D, E, and F provide a list of tubes that were removed from service for degradation in otherareas of the steam generators. This information is being submitted for completeness of the tube plugging performed during 2R14 and is not required by Technical Specification 5.6.6.2.4.
Table D Steam Generator A Indication Location                                           Severity***            Initiation    Projected Orientiation**           Axial       Arc        Surface/      Leakage SG    Row        Column        Elevation*                         Volts Length      Length    Degradation A     32           47         1C +0.74"            SVI           0.12   0.16"        260       WEAR             0 A     38           36         3H +0.01"            SAI           0.10   0.21"                  ODSCC            0 Table E Steam Generator B Indication Location                                          Severity***            Initiation SG    Row        Column        Elevation*      Orientiation**           Axial       Arc        Surface/      Projected Volts Length. Length    Degradation     Leakage B      2           20          5H -0.01"           SAI           0.12   0.26"                  ODSCC            0 B     17           31         3H +0.00"            SAI           0.28   0.44"                  ODSCC            0 B     17           39          3H -0.04"           SAI           0.28   0.21"                  ODSCC            0 B     21           52         2H +0.11"            SAI           0.11   0.31"                  ODSCC            0 B     36           56         AV3 +0.00"           40%           6.13                          WEAR             0 Table F Steam Generator C Indication Location                                  7       Severity***            Initiation    Projected SG    Row        Column        Elevation*.                        Volts Length      LenAc      Surac l          egth     Degradation    Leakage C      3           26         3H +0o01"            SAI           0.12   0.44"                  ODSCC            0 C     13           49         2H +9.70"            SCI           1.01                 35'      ODSCC            0 C     19           35          3H -0.16"           SAI           0.10   0.20"                  ODSCC            0 C     23           60         2H +0.03"            SAI           0.11   0.30"                  ODSCC            0 C     32           71         2H +0.20"            SAI           0.12   0.26"                  ODSCC            0 C     43           36         3H +2.70"            SCI           1.09                430       ODSCC            0 2H, 3H, 5H = 2 , 3 d 5th Hot leg tube support plate 10 = 1 st Cold leg tube support plate (flow distribution baffle)
AV3= 3 rd Anti-vibration bar
** *MCI     - Multiple circumferential indications SAI   - Single axial indication SCI   - Single circumferential indication SVI   -'Single volumetric indication Reported using the 300 kHz Plus Point coil SG B, Row 36, Column 56 (AV3) voltage reported from bobbin coil}}