Text

Drift Study for Agastat ETR Series Time Delay Relays
	ML13018A110
Person / Time
Site:	River Bend
Issue date:	02/11/2009
From:	Hunter R; Entergy Operations
To:	Wang A; Plant Licensing Branch IV
	Wang A
Shared Package
ML13018A081	List: ML13018A084; ML13018A100; ML13018A103; ML13018A107; ML13018A110;
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	TAC ME7767 G13.18.6.3-014
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ANO-1 ANO-2 GGNS IP-2 IP-3 PLP JAF PNPS RBS VY W3 CALCULATION (1)

EC # 11753 (2)

Page 1 of 50 COVER PAGE (3) Design Basis Calc. YES NO (4) CALCULATION EC Markup (5 ) (6)

Calculation No: G13.18.6.3-014 Revision: 0 (7)

Title:

Drift Study for Agastat ETR Series Time Delay Relays (8) (9)

System(s): 203, 403 Review Org (Department): NSBE3 (I&C Design)

(10) (11)

Safety Class: Component/Equipment/Structure Type/Number:

Safety / Quality Related E22-S004-ACBR-62S3 E22-S004-ACB1-62S4 Augmented Quality Program Non-Safety Related E22-S004-ACBR-62S5 E22-S004-ACB1-62S6 HVR-A02-62A HVR-B02-62A (12)

Document Type: F43.02 (13)

Keywords (Description / Topical Codes): Drift REVIEWS (14) (15) (16)

Name/Signature/Date Name/Signature/Date Name/Signature/Date Robert Hunter / Richard J. Hannigan

/ 2-11-09 See AS for electronic signature

/ 2-11-09 Responsible Engineer Design Verifier Supervisor/Approval Reviewer Comments Attached Comments Attached

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 2 OF 14 CALCULATION CALCULATION NO: G13.18.6.3-014 REFERENCE SHEET REVISION: 0 I. EC Markups Incorporated None Input Output Impact Tracking II. Relationships: Sht Rev Doc Doc Y/N No.

328113 NA 341045 NA 341654 NA 344293 NA 350913 NA 350914 NA 358911 NA 359922 NA 362327 NA 371448 NA 371449 NA CR-RBS-1999-1449 NA CR-RBS-2001-0064 NA CR-RBS-2008-01550 0 CR-RBS-2008-01783 0 ECH-NE-08-00015 0 G13.18.6.2-ENS*007 0 000 Y EC11753 STP-302-1604 1 7 STP-302-1604 1 9 STP-302-1604 1 10 STP-302-1604 1 11 STP-302-1604 1 12 STP-302-1604 2 7 STP-302-1604 3 7 STP-302-1605 1 12 STP-302-1605 1 13 STP-302-1605 1 14 STP-403-1300 1 9 STP-403-1300 1 10 STP-403-1300 2 10 STP-403-1301 1 2 STP-403-1301 1 3 WO-50374409 0 WO-50374410 0 WO-50688117 0

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 3 OF 14 CALCULATION CALCULATION NO: G13.18.6.3-014 REFERENCE SHEET REVISION: 0 Input Output Impact Tracking II. Relationships (contd): Sht Rev Doc Doc Y/N No.

WO-50688140 0 WO-50688141 0 WO-50967748 0 WO-50981804 0 WO-51005340 0 WO-51006660 0 WO-51011563 0 WO-51037963 0 WO-51037964 0 WO-51048546 0 WO-51053418 0 WO-51207246 0 III. CROSS

REFERENCES:

1. American National Standard N15.15-1974, Assessment of the Assumption of Normality (Employing Individual Observed Values)

2. ANSI/ISA-S67.04-Part I-2000, Setpoints for Nuclear Safety Related Instrumentation

3. DOE Research and Development Report No. WAPD-TM-1292, Statistics for Nuclear Engineers and Scientists Part 1: Basic Statistical Inference, February 1981

4. EPRI TR-103335R1, Statistical Analysis of Instrument Calibration Data; Guidelines for Instrument Calibration Extension / Reduction Programs, October 1998

5. ISA-RP67.04-Part II-2000, Methodologies for the Determination of Setpoints for Nuclear Safety-Related Instrumentation, Second Printing, June 12, 1995

6. NRC Generic Letter 91-04, Changes in Technical Specification Surveillance Requirements to Accommodate a 24 Month Fuel Cycle, April 2, 1991 IV. SOFTWARE USED:

Title:

N/A Version/Release: Disk/CD No.

V. DISK/CDS INCLUDED:

Title:

N/A Version/Release Disk/CD No.

VI. OTHER CHANGES:

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 4 OF 14 Revision Record of Revision Initial issue.

0

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 5 OF 14 TABLE OF CONTENTS 1 Purpose ................................................................................................................................................. 6 2 Conclusions ........................................................................................................................................... 7 3 Design Inputs......................................................................................................................................... 7 4 References............................................................................................................................................. 7 5 Assumptions.......................................................................................................................................... 8 6 Method of Analysis................................................................................................................................ 8 7 Analysis.................................................................................................................................................. 9 8 Attachments ........................................................................................................................................ 14 Attachment 1 - Drift Analysis Supporting Information (Excel Spreadsheet) - 28 pages Attachment 2 - DVR Forms with Comments - 8 pages

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 6 OF 14 1 Purpose 1.1 The purpose of this analysis is to establish more realistic drift values and characteristics to be used by instrument uncertainty calculations for determination of setpoints and allowable values for the subject instrumentation. The drift values are determined by historical As Found / As Left data analysis.

1.2 Specifically, this analysis addresses Agastat ETR Series Time Delay Relays with tag numbers as shown in Table 1.2-1 below. Also shown in the table are the calibration procedure numbers, device functions, and applicable Technical Specification (TS) sections. The results of this analysis can be conservatively applied to any Agastat ETR Series Time Delay Relay used at River Bend Station that meets the criteria listed in Section 3.5.3 of Reference 4.1.3, Considerations When Combining Instruments Into a Single Group.

TABLE 1.2-1 COMPONENT LIST PROCEDURE NO. TAG NO. FUNCTION TS SECTION Loss of Power (LOP) Instrumentation E22-S004-62S3 Division 3 - 4.16 kV Emergency Bus STP-302-1604 3.3.8.1.3-2.b E22-S004-62S4 Undervoltage Loss of Voltage - Time Delay Loss of Power (LOP) Instrumentation E22-S004-62S5 Division 3 - 4.16 kV Emergency Bus STP-302-1605 3.3.8.1.3-2.d E22-S004-62S6 Undervoltage Degraded Voltage - Time Delay, No LOCA Containment Unit Cooler System STP-403-1300 HVR-A02-62A Instrumentation 3.3.6.3.4-4 STP-403-1301 HVR-B02-62A System A and System B Timers

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 7 OF 14 2 Conclusions 2.1 The bounding Analyzed Drift (DA) for the Agastat ETR Series Time Delay Relays (See Table 1.2-1) has been determined to be 3.725% Setpoint for 30 months (24 months +

25%), with no significant bias. The Analyzed Drift should be treated as a normally distributed, 2 value for uncertainty analysis.

2.2 The results of this analysis can be conservatively applied to all of the relays in Table 1.2-1 and to any Agastat Series Time Delay Relay used at River Bend Station, which meets the criteria listed in Section 3.5.3 of Reference 4.1.3, Considerations When Combining Instruments Into a Single Group.

3 Design Inputs 3.1 Pages 1 thru 4 of Attachment 1 provide a listing of the historical As Left (AL) and As Found (AF) data, as obtained from Reference 4.2.1, with any data exclusions or modifications noted. All dates of calibration are also entered to provide time intervals between calibrations.

4 References 4.1 METHODOLOGY 4.1.1 ANSI/ISA-S67.04-Part I-2000, Setpoints for Nuclear Safety Related Instrumentation 4.1.2 ISA-RP67.04-Part II-2000, "Methodologies for the Determination of Setpoints for Nuclear Safety-Related Instrumentation," Second Printing, June 12, 1995 4.1.3 ECH-NE-08-00015, Instrument Drift Analysis Design Guide," Rev. 0, Generated by EXCEL Services Corporation, July 2008 4.1.4 EPRI TR-103335R1, "Statistical Analysis of Instrument Calibration Data; Guidelines for Instrument Calibration Extension / Reduction Programs," October, 1998 4.1.5 DOE Research and Development Report No. WAPD-TM-1292, "Statistics for Nuclear Engineers and Scientists Part 1: Basic Statistical Inference," February 1981 4.1.6 NRC Generic Letter 91-04, "Changes in Technical Specification Surveillance Requirements to Accommodate a 24 Month Fuel Cycle," April 2, 1991 4.1.7 American National Standard N15.15-1974, "Assessment of the Assumption of Normality (Employing Individual Observed Values)"

4.2 PROCEDURES 4.2.1 Historical Calibration Records from RBS Surveillance Test Procedure Results for STP-302-1604, STP-302-1605, STP-403-1300, and STP-403-1301.

4.3 MISCELLANEOUS REFERENCES 4.3.1 None

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 8 OF 14 5 Assumptions 5.1 This drift report employs those assumptions customarily used for standard statistical analyses, as directed by Reference 4.1.3, such as the assumption that a distribution is normal and the use of statistical tests to confirm this hypothesis.

5.2 This drift report is based on analysis of historical As Found and As Left data from calibration records for the devices listed in Table 1.2-1. The results of this analysis can also apply to any Agastat ETR Series Time Delay Relay used at RBS, but care must be taken when applying these results. Specifically, in order to apply the results of this analysis to other similar devices, the devices must meet the criteria listed in Section 3.5.3 of Reference 4.1.3, Considerations When Combining Instruments Into a Single Group.

6 Method of Analysis 6.1 The methodology used for this analysis is Reference 4.1.3, which is written in accordance with Reference 4.1.4, using References 4.1.1, 4.1.2 and 4.1.7 to supplement. An overview of the methodology is given herein, and any deviation from Reference 4.1.3 or any supplemental methods used herein are described.

6.2 This analysis determines the drift values for the subject instrumentation by analysis of historical As Found / As Left data from calibration records. Drift for a given device for a calibration period is determined by subtracting the previous As Left setting from a more recent As Found setting. The time interval for that calibration period is determined by subtracting the previous date from the more recent date, in units of days. All retrievable As Left and As Found data is collected for each calibration performed on each device covered by this report, for the study period. From this information, the drift and calibration interval is generated for each possible instance. Per Section 3.4.2 of Reference 4.1.3, "The goal is to collect enough data for the instrument or group to make a statistically valid pool." The devices covered by this report are currently calibrated on an 18 Month basis, and the proposed extension is for a 24 Month nominal calibration interval. Therefore, a study period of 16 years represents approximately ten of the present calibration cycles, and eight of the proposed calibration cycles, which is adequate to understand the component's performance over time. Also, a sufficient number of valid drift values are provided as a result of the selected study period to make a statistically valid pool. Therefore, As Found and As Left Data values are entered from calibrations occurring for approximately the last 10 to 16 years, depending on data availability.

6.3 Determination of the Analyzed Drift is generally accomplished through the following steps.

6.3.1 Gather and Generate Raw Drift Data: In addition to gathering the As Found and As Left data, and computing the drift values and time intervals, this step also involves an investigation into whether all of the devices should be analyzed together, or whether they should be separated into smaller analysis groups. Finally, this step involves careful screening of the input data for errors or other situations that could disrupt the proper determination of drift.

6.3.2 Determination of Outliers and Statistical Summary: In order to properly model the drift characteristics for a device, it could be proper to remove up to one more data

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 9 OF 14 value, which obviously does not conform to the vast majority of the data. A t-Test is performed on the data to detect any outliers, and remove up to one if appropriate, per the guidelines of Reference 4.1.3. Additionally, the basic statistical values which describe the group of drift data are derived in this step, including such parameters as Mean, Standard Deviation, Count, Median, Minimum, Maximum, etc.

6.3.3 Tests for Normality: Per Reference 4.1.3, a statistical test (W or D-Prime, depending on sample size) is performed on the drift data to support the hypothesis that the data conforms to a normal distribution. If this test is unable to support that hypothesis, then a Coverage Analysis is performed to ensure that the data can be conservatively modeled by a normal distribution and to provide an adjustment to the standard deviation of the drift model, if necessary to conservatively envelop the observed data population.

6.3.4 Time-Dependency

Per Reference 4.1.3, Scatter Plots and a time-based Binning Analysis are developed for the data to establish the time-dependency of the drift. If enough drift data exists for significantly different time intervals, regression analysis is performed to aid in the determination of time-dependency. The drift data is determined to be strongly time dependent or moderately time dependent, for the purpose of extrapolation.

6.3.5 Analyzed Drift Derivation and Characterization: The drift values are determined for the current calibration interval. These values are conservatively extrapolated to the desired calibration interval, based on the methods prescribed in Reference 4.1.3, depending on the degree of time-dependency derived for the drift data.

6.4 The mathematical computations of the statistical analysis are performed within an Excel spreadsheet. Supporting information from the spreadsheet is printed out in the form of Attachment 1 to this analysis. Microsoft Excel spreadsheets generally compute values to an approximate 15 decimal resolution, which is well beyond any required rounding for engineering analyses. However, for printing and display purposes, most values are displayed to lesser resolution. It is possible that hand computations will produce slightly different results, because of using rounded numbers in initial and intermediate steps, but the Excel computed values are considered highly accurate in comparison.

6.5 Acceptance Criteria: Since the purpose of the analysis is to generate a value and description of the characteristics of the drift of the evaluated make/model, there are no specific acceptance criteria.

7 Analysis 7.1 Gather and Generate Raw Error Data 7.1.1 Specifically, this analysis addresses Agastat ETR Series Time Delay Relays, with the tag numbers as shown in Table 1.2-1 of this analysis. These relays have the same manufacturer and series, with model numbers differing only in range. These relays perform the same delay on pull in function. Since the relays addressed in this analysis have different ranges and setpoints, pooling tests are required to determine whether or not it is appropriate to group the data from all the relays together. Three Groups based on setpoint are tested to determine whether pooling the three groups together for analysis is appropriate.

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 10 OF 14 7.1.2 Data not entered into the analysis is listed in the table below, showing the reasoning used in not entering the data.

Table 6.1.2-1 Data Not Entered in the Drift Analysis Procedure Tag Number Surveillance Comments/Disposition Number Date(s)

Relay was found failed. Technician found signs of over-heating. The relay was STP-403-1300 HVR-A02-62A 03/16/2005 replaced and calibrated. This data point was excluded from this drift analysis since no As Found data was available.

Relay was found failed. Technician found signs of over-heating. The relay was STP-403-1300 HVR-A02-62A 09/11/99 replaced and calibrated. This data point was excluded from this drift analysis since no As Found data was available.

7.1.3 Pages 1 thru 4 of Attachment 1 provide a listing of the initial As Found and As Left data from available historical plant calibration records for the subject time delay relays. Note that the calibration dates are also recorded, and notes are provided to clarify the activities performed or to provide additional information about the data, as appropriate. This data was entered into an Excel spreadsheet for computation of the drift values, time intervals between calibrations and statistical analysis.

7.1.4 A screening of the initial input data from pages 1 thru 4 of Attachment 1 was performed. To help identify erroneous data, an informal critical T-test was performed, with the Critical T values reduced incrementally until approximately 10%

of the data population was identified as outliers. Those outliers were researched, and no data errors were revealed. The specific informal T-tests performed are not documented, as they are only used as tools to identify potentially erroneous data and do not contribute to the analysis of the valid data.

7.1.5 Per the methodology of Section 4.1.1.11 of Reference 4.1.3, drift is computed by subtracting the As Left data of one calibration from the As Found data of the next calibration, as documented in pages 9 thru 12 of Attachment 1. These pages also document the time interval between calibrations (in the number of days and months) by subtracting the As Left date of one calibration from the As Found date of the next calibration, per Section 4.1.1.10 of Reference 4.1.3. Pages 9 thru 12 of Attachment 1 import the Sequence ID, the Tag ID., the AF / AL flags, the dates of calibration and the As Found and As Left data from pages 1 thru 4 (after data conversion on pages 5 thru 8) of Attachment 1 and computes the interval between calibrations.

Pages 9 and 10 of Attachment 1 compute the drift values and summarize the time intervals computed. As an example of the equations used, the first drift value and time interval are computed as follows. The rest of the values are computed identically.

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 11 OF 14 Drift (Seq 1) = AF (02/24/08) - AL (03/21/06) [For Tag E22-S004-62S3]

= 97.467 (From Seq. 1 on Left) - 99.000 (From Seq. 4 on Left)

= - 1.533 % Setpoint Cal Interval (Seq 1) = 02/24/08 - 03/21/06

= 705 Days Cal Interval (Mo.) = Cal Interval (Days) x 12 Months / 365.25 Days

= 23.2 Months 7.1.6 Specific pooling tests are performed on the data, as documented on pages 15 and 16 of Attachment 1. The data is divided into three groups as shown below.

Table 7.1.6-1 Initial Pooling Groups Group Tags Model / Series Setpoint Application No.

E22-S004-62S3 Voltage Switch-Delay 1 ETR-14D3B 3.0 sec.

E22-S004-62S4 on Energization E22-S004-62S5 54.9 sec. or Voltage Switch-Delay 2 ETR-14D3E E22-S004-62S6 57.0 sec. on Energization HVR-A02-62A Voltage Switch-Delay 3 ETR-14D3N 600.0 sec.

HVR-B02-62A on Energization By inspection, the groups all sense voltage and provide a Delay on Energization function. All three groups are the same series with differing ranges / setpoints.

Therefore, the only significant variable which needs testing is the setpoint.

Therefore, one specific pooling tests is performed as follows:

1. Group 1 versus Group 2 to test the setpoint difference,

2. Group 1 versus Group 3 to test the setpoint difference, and

3. Group 2 versus Group 3 to test the setpoint difference.

The t Tests are performed per Section 3.5.4 of Reference 4.1.3, to determine acceptability for pooling. As shown on pages 15 and 16 of Attachment 1, the magnitude of the t Statistic is less than the t Critical two-tail value for all three tests, indicating that it is acceptable to combine the data sets in each test. The standard deviations and means of the groups are similar enough for pooling. From an engineering standpoint, all data should be combined for drift analysis, as explained within Section 7.1.1, and the t Tests confirm this hypothesis. Therefore, it is acceptable to combine the all of the data for these Agastat ETR Series relays for drift analysis.

7.2 Determination of Outliers and Statistical Summary 7.2.1 The outlier analysis is recorded on pages 13 and 14 of Attachment 1 to this drift analysis. This page displays the Sequence No., Tag No., Drift, and Calibration Interval (in units of Days). The critical T value used in the outlier analysis comes directly from Table 2 of Reference 4.1.3. As shown on page 13 of Attachment 1,

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 12 OF 14 one outlier was detected and removed. The Final Data Set (FDS) for this analysis is documented on pages 13 and 14 of Attachment 1.

7.2.2 A summary of the required statistical values for the Final Data Set, per Section 4.2 of Reference 4.1.3, is developed on page 13 of Attachment 1. Cell formulas for the determinations of statistical quantities are used directly from Section 4.2 of Reference 4.1.3.

7.3 Tests for Normality 7.3.1 Since the FDS contains less than 50 samples, the W Test is performed on the data to test for normality, as shown on page 17 of Attachment 1. Per the methodology of Section 3.7.2 of Reference 4.1.3, the details of the W Test methodology are shown in Reference 4.1.7. Equations used are listed on page 17 of Attachment 1. Since the calculated W statistic (0.9584) is greater than the critical value for W (0.947),

this test does not reject the assumption of normality for this data set.

7.3.2 Since the W Test did not reject the assumption of normality, a Coverage Analysis is not necessary, but a Histogram is developed for information only. The Histogram is developed and documented on pages 19 and 20 of Attachment 1, per Sections 3.7.5 and 4.4 of Reference 4.1.3. To generate the Histogram data, the drift values are categorized into 12 bins, in relation to the mean and standard deviation. These bins are generated in multiples of 1/2 Standard Deviation increments, and the bin maximum values are derived in accordance with the methods given in Section 19 of Reference 4.1.4. (See page 19 of Attachment 1 for specific formulas used for the maximums.)

The expected populations within each bin are developed from normal distribution percentages, as shown on page 19 of Attachment 1.

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 13 OF 14 7.4 Time-Dependency 7.4.1 In order to determine time-dependency of the drift data, the data is first plotted as a scatter plot on page 21 of Attachment 1, in accordance with the methodology of Section 4.5.1 of Reference 4.1.3. The trend line within this scatter plot starts at a negative value and becomes more negative (slightly) over the evaluation period.

The data scatter increases over time, as confirmed by the increasing standard deviation from Bin 4 to Bin 5 and from Bin 5 to Bin 6. The trend line and the associated equation are noted on the scatter plot on page 21 of Attachment 1.

7.4.2 The binning analysis is performed as shown on pages 22 and 23 of Attachment 1.

The drift and time interval data are divided into bins, based on the intervals between calibrations as defined in Section 3.8.3.1 of Reference 4.1.3. Statistical summaries for each bin, including count, mean, standard deviation, mean time interval and maximum observed time interval are computed. Excel functions are used to determine the statistical summary values for each bin, and are used explicitly from Sections 4.2.1, 4.2.2, 4.2.3 and 4.2.7 of Reference 4.1.3. This information is tabulated on page 22 of Attachment 1. Per Section 3.8.3.4 of Reference 4.1.3, after removing those bins with 5 or less data points and those with less than or equal to 10% of total population, only Bins 4 and 5 remain.

Page 23 of Attachment 1 displays a plot of the mean and standard deviations of the drift data versus the average time interval between calibrations for the subject bins, in accordance with Section 4.5.2 of Reference 4.1.3. It also provides all of the binning parameters and statistics that are a part of the binning analysis. The mean value of the data starts from a positive value in Bin 4 and crosses zero to a negative value for Bin 5. This represents a decrease in the magnitude of the mean which is not indicative of time dependency. Also, from this plot, the standard deviation increases from Bin 4 to Bin 5. In addition, the ratio of the variances (Bin 5 / Bin 4) is compared to the F critical value, as directed by Section 4.5.2 of Reference 4.1.3.

Potentially strong time dependency is indicated for the random portion of drift from the variance test (Sections 3.8.3.4 and 4.5.2 of Reference 4.1.3).

7.4.3 Per Section 3.8.4 of Reference 4.1.3, a drift regression analysis is performed within pages 24 and 25 of Attachment 1. The equations and functions used by Excel are taken specifically from Section 3.8.4 of Reference 4.1.3. The regression analysis output shows an R Squared Value (0.000026) less than 0.09, a P Value greater than 0.05 (0.972533) and F Value (0.001199) less than F Critical (3.199582).

These results all indicate that the bias portion of the drift is not time dependent. The regression line stays relatively constant within the analysis period, which per the last paragraph of Section 3.8.4 of Reference 4.1.3, is not indicative of time dependency, confirming the statistical test results. The bias portion of drift is conservatively treated as moderately time dependent for the purpose of extrapolation.

7.4.4 Per Section 3.8.4 of Reference 4.1.3, an absolute value drift regression analysis is performed within pages 26 and 27 of Attachment 1. The drift data is converted into absolute value via the Excel ABS function for each drift data value. The equations and functions used by Excel for the Regression analysis are taken specifically from Section 3.8.4 of Reference 4.1.3. This regression analysis output shows an R Squared Value (0.030798) less than 0.09, a P Value (0.232836) greater than 0.05, and an F Value (1.461713) less than F Critical (3.199582). These results all indicate a random portion of drift that is not time-dependent. The absolute value

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 14 OF 14 drift regression line increases over time, and the binning plot shows an increasing standard deviation over time. Based on these results, per Section 3.8.4 of Reference 4.1.3, the random portion of drift is conservatively treated as moderately time-dependent for the purpose of extrapolation.

7.5 Analyzed Drift (DA) Derivation and Characterization 7.5.1 As shown on page 28 of Attachment 1, per Section 3.11 of Reference 4.1.3, the drift bias error is evaluated for significance. The critical value for significance of the bias term is computed and shown therein. The bias is determined to be negligible.

Therefore, the computed Analyzed Drift Bias term (DAbias) is negligible.

7.5.2 Per Section 4.6.6 of Reference 4.1.3, the random portion of the Analyzed Drift is determined from multiplying the standard deviation of Bin 5 by the Tolerance Interval Factor (TIF), and extrapolating as required to a calibration interval of 30 months. Since the random portion of drift has been determined to be moderately time-dependent for the purpose of extrapolation, the standard deviation of Bin 5 is used with the average observed time interval from Bin 5 on page 22 of Attachment 1 as the starting point. The TIF is obtained from Table 1 of Reference 4.1.3 as 2.408 for a 95/95 significance. The computation of this value is shown on page 28 of Attachment 1 to result in a DArandom extrap term of 3.725% Setpoint.

8 Attachments Attachment 1 - Analysis Spreadsheet (28 pages)

Spreadsheet Contents Pages Input Data 1-4 Data Conversion 5-8 AF-AL Data 9-12 Outliers & Summary 13-14 Pooling Tests 15-16 W Test 17-18 Histogram 19-20 Scatter Plot 21 Binning Analysis 22-23 Regression - Drift 24-25 Regression - AV of Drift 26-27 Analyzed Drift (DA) 28 Attachment 2 - DVR Forms with Comments (8 pages)

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Input Data Attachment 1 Page 1 of 28 Seq. AF/ AF / AL ID Tag ID Date Procedure Make/Model AL Setpt Data Units Comments 1 E22-S004-62S3 2/24/2008 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.924 sec Post maintenance testing per WO 50372350 2 E22-S004-62S3 2/24/2008 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.925 sec 3 E22-S004-62S3 3/21/2006 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.980 sec 4 E22-S004-62S3 3/21/2006 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.970 sec 5 E22-S004-62S3 6/17/2004 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.980 sec 6 E22-S004-62S3 6/17/2004 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.980 sec 7 E22-S004-62S3 5/21/2003 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.970 sec 8 E22-S004-62S3 5/21/2003 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.980 sec 9 E22-S004-62S3 11/8/2001 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.940 sec 10 E22-S004-62S3 11/8/2001 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.940 sec 11 E22-S004-62S3 3/8/2000 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.950 sec 12 E22-S004-62S3 3/8/2000 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.950 sec 13 E22-S004-62S3 4/13/1999 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.950 sec 14 E22-S004-62S3 4/13/1999 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.950 sec 15 E22-S004-62S3 E22 S004 62S3 8/19/1997 STP-302-1604 STP 302 1604 Agastat ETR ETR-14D3B 14D3B AF 3.000 2.970 sec 16 E22-S004-62S3 8/19/1997 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.970 sec 17 E22-S004-62S3 1/13/1996 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.960 sec 18 E22-S004-62S3 1/13/1996 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.960 sec 19 E22-S004-62S3 5/20/1994 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.980 sec Post maintenance testing per WO 50372355.

20 E22-S004-62S3 5/20/1994 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.980 sec 21 E22-S004-62S3 7/6/1992 STP-302-1604 Agastat ETR-14D3B AF 3.000 3.060 sec 22 E22-S004-62S3 7/6/1992 STP-302-1604 Agastat ETR-14D3B AL 3.000 3.060 sec 23 E22-S004-62S4 2/24/2008 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.989 sec 24 E22-S004-62S4 2/24/2008 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.991 sec 25 E22-S004-62S4 3/21/2006 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.940 sec 26 E22-S004-62S4 3/21/2006 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.940 sec 27 E22-S004-62S4 6/17/2004 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.910 sec 28 E22-S004-62S4 6/17/2004 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.910 sec 29 E22-S004-62S4 5/21/2003 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.920 sec 30 E22-S004-62S4 5/21/2003 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.920 sec 31 E22-S004-62S4 11/8/2001 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.900 sec 32 E22-S004-62S4 11/8/2001 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.900 sec 33 E22-S004-62S4 3/8/2000 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.890 sec 34 E22-S004-62S4 3/8/2000 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.890 sec 35 E22-S004-62S4 4/13/1999 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.890 sec Post maintenance testing per WO 50372362 36 E22-S004-62S4 4/13/1999 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.890 sec 37 E22-S004-62S4 8/19/1997 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.940 sec

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Input Data Attachment 1 Page 2 of 28 Seq. AF/ AF / AL ID Tag ID Date Procedure Make/Model AL Setpt Data Units Comments 38 E22-S004-62S4 8/19/1997 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.940 sec 39 E22-S004-62S4 1/13/1996 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.890 sec 40 E22-S004-62S4 1/13/1996 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.890 sec 41 E22-S004-62S4 5/20/1994 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.930 sec 42 E22-S004-62S4 5/20/1994 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.930 sec 43 E22-S004-62S4 7/6/1992 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.994 sec 44 E22-S004-62S4 7/6/1992 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.994 sec 45 E22-S004-62S5 2/24/2008 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.214 sec 46 E22-S004-62S5 2/24/2008 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.220 sec Relay replaced due to expired date code. AF 47 E22-S004-62S5 4/17/2007 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.32 sec data from old relay.

48 E22-S004-62S5 4/17/2007 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.32 sec 49 E22-S004-62S5 6/14/2005 STP-302-1605 Agastat ETR-14D3E AF 54.900 56.95 sec 50 E22-S004-62S5 6/14/2005 STP-302-1605 Agastat ETR-14D3E AL 54.900 54.90 sec 51 E22-S004-62S5 E22 S004 62S5 6/17/2004 STP-302-1605 STP 302 1605 Agastat ETR ETR-14D3E 14D3E AF 54 900 54.900 57.410 sec 52 E22-S004-62S5 6/17/2004 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.910 sec 53 E22-S004-62S5 5/21/2003 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.250 sec Setpoint changed from 57.0 sec to 54.9 sec.

54 E22-S004-62S5 5/21/2003 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.230 sec 55 E22-S004-62S5 11/8/2001 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.800 sec 56 E22-S004-62S5 11/8/2001 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.600 sec 57 E22-S004-62S5 3/8/2000 STP-302-1605 Agastat ETR-14D3E AF 57.000 55.810 sec 58 E22-S004-62S5 3/8/2000 STP-302-1605 Agastat ETR-14D3E AL 57.000 55.800 sec 59 E22-S004-62S5 4/13/1999 STP-302-1605 Agastat ETR-14D3E AF 57.000 55.800 sec 60 E22-S004-62S5 4/13/1999 STP-302-1605 Agastat ETR-14D3E AL 57.000 55.760 sec 61 E22-S004-62S5 8/19/1997 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.130 sec 62 E22-S004-62S5 8/19/1997 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.140 sec 63 E22-S004-62S6 2/24/2008 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.762 sec 64 E22-S004-62S6 2/24/2008 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.778 sec Relay replaced due to expired date code. AF 65 E22-S004-62S6 4/17/2007 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.52 sec data from old relay.

66 E22-S004-62S6 4/17/2007 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.53 sec 67 E22-S004-62S6 6/14/2005 STP-302-1605 Agastat ETR-14D3E AF 54.900 56.91 sec 68 E22-S004-62S6 6/14/2005 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.12 sec 69 E22-S004-62S6 6/17/2004 STP-302-1605 Agastat ETR-14D3E AF 54.900 56.790 sec 70 E22-S004-62S6 6/17/2004 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.730 sec 71 E22-S004-62S6 5/21/2003 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.670 sec Setpoint changed from 57.0 sec to 54.9 sec.

72 E22-S004-62S6 5/21/2003 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.660 sec

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Input Data Attachment 1 Page 3 of 28 Seq. AF/ AF / AL ID Tag ID Date Procedure Make/Model AL Setpt Data Units Comments 73 E22-S004-62S6 11/8/2001 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.400 sec 74 E22-S004-62S6 11/8/2001 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.400 sec 75 E22-S004-62S6 3/8/2000 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.530 sec 76 E22-S004-62S6 3/8/2000 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.510 sec 77 E22-S004-62S6 4/13/1999 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.150 sec 78 E22-S004-62S6 4/13/1999 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.100 sec 79 E22-S004-62S6 8/19/1997 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.680 sec 80 E22-S004-62S6 8/19/1997 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.660 sec 81 HVR-A02-62A 3/4/2008 STP-403-1300 Agastat ETR-14D3N AF 600.000 590.29 sec 82 HVR-A02-62A 3/4/2008 STP-403-1300 Agastat ETR-14D3N AL 600.000 590.27 sec 83 HVR-A02-62A 8/1/2006 STP-403-1300 Agastat ETR-14D3N AF 600.000 592.29 sec 84 HVR-A02-62A 8/1/2006 STP-403-1300 Agastat ETR-14D3N AL 600.000 591.30 sec Relay was overheated and failed. Relay 85 HVR-A02-62A 3/16/2005 STP-403-1300 Agastat ETR-14D3N AF 600.000 FAIL sec replaced.

86 HVR-A02-62A 3/16/2005 STP-403-1300 Agastat ETR-14D3N AL 600 000 600.000 586 00 586.00 sec 87 HVR-A02-62A 10/28/2003 STP-403-1300 Agastat ETR-14D3N AF 600.000 574.00 sec 88 HVR-A02-62A 10/28/2003 STP-403-1300 Agastat ETR-14D3N AL 600.000 574.00 sec 89 HVR-A02-62A 6/14/2002 STP-403-1300 Agastat ETR-14D3N AF 600.000 579.60 sec 90 HVR-A02-62A 6/14/2002 STP-403-1300 Agastat ETR-14D3N AL 600.000 579.70 sec 91 HVR-A02-62A 1/26/2001 STP-403-1300 Agastat ETR-14D3N AF 600.000 576.00 sec 92 HVR-A02-62A 1/26/2001 STP-403-1300 Agastat ETR-14D3N AL 600.000 575.00 sec Relay was overheated and failed. Relay 93 HVR-A02-62A 9/11/1999 STP-403-1300 Agastat ETR-14D3N AF 600.000 FAIL sec replaced per MAI 328113. AL Data recorded in file STP-403-1300 990911-2.pdf.

94 HVR-A02-62A 9/11/1999 STP-403-1300 Agastat ETR-14D3N AL 600.000 592.00 sec 95 HVR-A02-62A 4/24/1998 STP-403-1300 Agastat ETR-14D3N AF 600.000 589.60 sec 96 HVR-A02-62A 4/24/1998 STP-403-1300 Agastat ETR-14D3N AL 600.000 589.60 sec 97 HVR-B02-62A 3/24/2008 STP-403-1301 Agastat ETR-14D3N AF 600.000 579.89 sec 98 HVR-B02-62A 3/24/2008 STP-403-1301 Agastat ETR-14D3N AL 600.000 579.98 sec During inspection relay exhibited heat damage (per technician relay "was damaged but 99 HVR-B02-62A 10/12/2006 STP-403-1301 Agastat ETR-14D3N AF 600.000 568.00 sec functional") so it was replaced. AF was from old relay, AL ecorded from 2nd test in file STP-403-1301 061017.pdf.

100 HVR-B02-62A 10/12/2006 STP-403-1301 Agastat ETR-14D3N AL 600.000 592.00 sec 101 HVR-B02-62A 5/26/2005 STP-403-1301 Agastat ETR-14D3N AF 600.000 598.64 sec 102 HVR-B02-62A 5/26/2005 STP-403-1301 Agastat ETR-14D3N AL 600.000 598.62 sec

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Input Data Attachment 1 Page 4 of 28 Seq. AF/ AF / AL ID Tag ID Date Procedure Make/Model AL Setpt Data Units Comments 103 HVR-B02-62A 1/8/2004 STP-403-1301 Agastat ETR-14D3N AF 600.000 598.02 sec 104 HVR-B02-62A 1/8/2004 STP-403-1301 Agastat ETR-14D3N AL 600.000 597.81 sec 105 HVR-B02-62A 8/19/2002 STP-403-1301 Agastat ETR-14D3N AF 600.000 597.38 sec 106 HVR-B02-62A 8/19/2002 STP-403-1301 Agastat ETR-14D3N AL 600.000 597.24 sec 107 HVR-B02-62A 4/6/2001 STP-403-1301 Agastat ETR-14D3N AF 600.000 588.82 sec 108 HVR-B02-62A 4/6/2001 STP-403-1301 Agastat ETR-14D3N AL 600.000 588.71 sec During inspection relay exhibited heat damage

("relay good functional but failed inspection") so 109 HVR-B02-62A 1/11/2001 STP-403-1301 Agastat ETR-14D3N AF 600.000 597.70 sec it was replaced. AF was from old relay, recorded from 2nd test in file STP-403-1301 010112.pdf.

110 HVR-B02-62A 1/11/2001 STP-403-1301 Agastat ETR-14D3N AL 600.000 604.08 sec 111 HVR-B02-62A 8/28/1999 STP-403-1301 Agastat ETR-14D3N AF 600.000 605.00 sec 112 HVR-B02-62A 8/28/1999 STP-403-1301 Agastat ETR-14D3N AL 600.000 604.00 sec 113 HVR-B02-62A 4/10/1998 STP-403-1301 Agastat g ETR-14D3N AF 600.000 597.00 sec 114 HVR-B02-62A 4/10/1998 STP-403-1301 Agastat ETR-14D3N AL 600.000 594.00 sec

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Data Conversion Attachment 1 Page 5 of 28 Seq. AF/ Setpoint AF / AL Data AF / AL Data ID Tag ID Date AL (Seconds) (Seconds) (% Setpoint) Notes 1 E22-S004-62S3 2/24/2008 AF 3.000 2.924 97.467 Post maintenance testing per WO 50372350 2 E22-S004-62S3 2/24/2008 AL 3.000 2.925 97.500 3 E22-S004-62S3 3/21/2006 AF 3.000 2.980 99.333 4 E22-S004-62S3 3/21/2006 AL 3.000 2.970 99.000 5 E22-S004-62S3 6/17/2004 AF 3.000 2.980 99.333 6 E22-S004-62S3 6/17/2004 AL 3.000 2.980 99.333 7 E22-S004-62S3 5/21/2003 AF 3.000 2.970 99.000 8 E22-S004-62S3 5/21/2003 AL 3.000 2.980 99.333 9 E22-S004-62S3 11/8/2001 AF 3.000 2.940 98.000 10 E22-S004-62S3 11/8/2001 AL 3.000 2.940 98.000 11 E22-S004-62S3 3/8/2000 AF 3.000 2.950 98.333 12 E22-S004-62S3 3/8/2000 AL 3.000 2.950 98.333 13 E22-S004-62S3 4/13/1999 AF 3.000 2.950 98.333 14 E22-S004-62S3 4/13/1999 AL 3.000 2.950 98.333 15 E22-S004-62S3 E22 S004 62S3 8/19/1997 AF 3.000 2.970 99.000 16 E22-S004-62S3 8/19/1997 AL 3.000 2.970 99.000 17 E22-S004-62S3 1/13/1996 AF 3.000 2.960 98.667 18 E22-S004-62S3 1/13/1996 AL 3.000 2.960 98.667 19 E22-S004-62S3 5/20/1994 AF 3.000 2.980 99.333 Post maintenance testing per WO 50372355.

20 E22-S004-62S3 5/20/1994 AL 3.000 2.980 99.333 21 E22-S004-62S3 7/6/1992 AF 3.000 3.060 102.000 22 E22-S004-62S3 7/6/1992 AL 3.000 3.060 102.000 23 E22-S004-62S4 2/24/2008 AF 3.000 2.989 99.633 24 E22-S004-62S4 2/24/2008 AL 3.000 2.991 99.700 25 E22-S004-62S4 3/21/2006 AF 3.000 2.940 98.000 26 E22-S004-62S4 3/21/2006 AL 3.000 2.940 98.000 27 E22-S004-62S4 6/17/2004 AF 3.000 2.910 97.000 28 E22-S004-62S4 6/17/2004 AL 3.000 2.910 97.000 29 E22-S004-62S4 5/21/2003 AF 3.000 2.920 97.333 30 E22-S004-62S4 5/21/2003 AL 3.000 2.920 97.333 31 E22-S004-62S4 11/8/2001 AF 3.000 2.900 96.667 32 E22-S004-62S4 11/8/2001 AL 3.000 2.900 96.667 33 E22-S004-62S4 3/8/2000 AF 3.000 2.890 96.333 34 E22-S004-62S4 3/8/2000 AL 3.000 2.890 96.333 35 E22-S004-62S4 4/13/1999 AF 3.000 2.890 96.333 Post maintenance testing per WO 50372362 36 E22-S004-62S4 4/13/1999 AL 3.000 2.890 96.333 37 E22-S004-62S4 8/19/1997 AF 3.000 2.940 98.000 38 E22-S004-62S4 8/19/1997 AL 3.000 2.940 98.000 39 E22-S004-62S4 1/13/1996 AF 3.000 2.890 96.333

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Data Conversion Attachment 1 Page 6 of 28 Seq. AF/ Setpoint AF / AL Data AF / AL Data ID Tag ID Date AL (Seconds) (Seconds) (% Setpoint) Notes 40 E22-S004-62S4 1/13/1996 AL 3.000 2.890 96.333 41 E22-S004-62S4 5/20/1994 AF 3.000 2.930 97.667 42 E22-S004-62S4 5/20/1994 AL 3.000 2.930 97.667 43 E22-S004-62S4 7/6/1992 AF 3.000 2.994 99.800 44 E22-S004-62S4 7/6/1992 AL 3.000 2.994 99.800 45 E22-S004-62S5 2/24/2008 AF 54.900 55.214 100.572 46 E22-S004-62S5 2/24/2008 AL 54.900 55.220 100.583 47 E22-S004-62S5 4/17/2007 AF 54.900 55.320 100.765 Relay replaced due to expired date code. AF data from old relay.

48 E22-S004-62S5 4/17/2007 AL 54.900 55.320 100.765 49 E22-S004-62S5 6/14/2005 AF 54.900 56.950 103.734 50 E22-S004-62S5 6/14/2005 AL 54.900 54.900 100.000 51 E22-S004-62S5 6/17/2004 AF 54.900 57.410 104.572 52 E22-S004-62S5 6/17/2004 AL 54.900 56.910 103.661 53 E22-S004-62S5 5/21/2003 AF 57.000 56.250 98.684 Setpoint changed from 57.0 sec to 54.9 sec.

54 E22-S004-62S5 E22 S004 62S5 5/21/2003 AL 54 900 54.900 56 230 56.230 102 423 102.423 55 E22-S004-62S5 11/8/2001 AF 57.000 56.800 99.649 56 E22-S004-62S5 11/8/2001 AL 57.000 56.600 99.298 57 E22-S004-62S5 3/8/2000 AF 57.000 55.810 97.912 58 E22-S004-62S5 3/8/2000 AL 57.000 55.800 97.895 59 E22-S004-62S5 4/13/1999 AF 57.000 55.800 97.895 60 E22-S004-62S5 4/13/1999 AL 57.000 55.760 97.825 61 E22-S004-62S5 8/19/1997 AF 57.000 56.130 98.474 62 E22-S004-62S5 8/19/1997 AL 57.000 56.140 98.491 63 E22-S004-62S6 2/24/2008 AF 54.900 55.762 101.570 64 E22-S004-62S6 2/24/2008 AL 54.900 55.778 101.599 65 E22-S004-62S6 4/17/2007 AF 54.900 55.520 101.129 Relay replaced due to expired date code. AF data from old relay.

66 E22-S004-62S6 4/17/2007 AL 54.900 55.530 101.148 67 E22-S004-62S6 6/14/2005 AF 54.900 56.910 103.661 68 E22-S004-62S6 6/14/2005 AL 54.900 55.120 100.401 69 E22-S004-62S6 6/17/2004 AF 54.900 56.790 103.443 70 E22-S004-62S6 6/17/2004 AL 54.900 56.730 103.333 71 E22-S004-62S6 5/21/2003 AF 57.000 56.670 99.421 Setpoint changed from 57.0 sec to 54.9 sec.

72 E22-S004-62S6 5/21/2003 AL 54.900 56.660 103.206 73 E22-S004-62S6 11/8/2001 AF 57.000 56.400 98.947 74 E22-S004-62S6 11/8/2001 AL 57.000 56.400 98.947 75 E22-S004-62S6 3/8/2000 AF 57.000 56.530 99.175 76 E22-S004-62S6 3/8/2000 AL 57.000 56.510 99.140 77 E22-S004-62S6 4/13/1999 AF 57.000 56.150 98.509 78 E22-S004-62S6 4/13/1999 AL 57.000 56.100 98.421

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Data Conversion Attachment 1 Page 7 of 28 Seq. AF/ Setpoint AF / AL Data AF / AL Data ID Tag ID Date AL (Seconds) (Seconds) (% Setpoint) Notes 79 E22-S004-62S6 8/19/1997 AF 57.000 56.680 99.439 80 E22-S004-62S6 8/19/1997 AL 57.000 56.660 99.404 81 HVR-A02-62A 3/4/2008 AF 600.000 590.290 98.382 82 HVR-A02-62A 3/4/2008 AL 600.000 590.270 98.378 83 HVR-A02-62A 8/1/2006 AF 600.000 592.290 98.715 84 HVR-A02-62A 8/1/2006 AL 600.000 591.300 98.550 85 HVR-A02-62A 3/16/2005 AF 600.000 FAIL FAIL Relay was overheated and failed. Relay replaced.

86 HVR-A02-62A 3/16/2005 AL 600.000 586.000 97.667 87 HVR-A02-62A 10/28/2003 AF 600.000 574.000 95.667 88 HVR-A02-62A 10/28/2003 AL 600.000 574.000 95.667 89 HVR-A02-62A 6/14/2002 AF 600.000 579.600 96.600 90 HVR-A02-62A 6/14/2002 AL 600.000 579.700 96.617 91 HVR-A02-62A 1/26/2001 AF 600.000 576.000 96.000 92 HVR-A02-62A 1/26/2001 AL 600.000 575.000 95.833 Relay was overheated and failed failed. Relay replaced per MAI 328113 328113. AL 93 HVR-A02-62A 9/11/1999 AF 600.000 FAIL FAIL Data recorded in file STP-403-1300 990911-2.pdf.

94 HVR-A02-62A 9/11/1999 AL 600.000 592.000 98.667 95 HVR-A02-62A 4/24/1998 AF 600.000 589.600 98.267 96 HVR-A02-62A 4/24/1998 AL 600.000 589.600 98.267 97 HVR-B02-62A 3/24/2008 AF 600.000 579.890 96.648 98 HVR-B02-62A 3/24/2008 AL 600.000 579.980 96.663 During inspection relay exhibited heat damage (per technician relay "was 99 HVR-B02-62A 10/12/2006 AF 600.000 568.000 94.667 damaged but functional") so it was replaced. AF was from old relay, AL ecorded from 2nd test in file STP-403-1301 061017.pdf.

100 HVR-B02-62A 10/12/2006 AL 600.000 592.000 98.667 101 HVR-B02-62A 5/26/2005 AF 600.000 598.640 99.773 102 HVR-B02-62A 5/26/2005 AL 600.000 598.620 99.770 103 HVR-B02-62A 1/8/2004 AF 600.000 598.020 99.670 104 HVR-B02-62A 1/8/2004 AL 600.000 597.810 99.635 105 HVR-B02-62A 8/19/2002 AF 600.000 597.380 99.563 106 HVR-B02-62A 8/19/2002 AL 600.000 597.240 99.540 107 HVR-B02-62A 4/6/2001 AF 600.000 588.820 98.137 108 HVR-B02-62A 4/6/2001 AL 600.000 588.710 98.118 During inspection relay exhibited heat damage ("relay good functional but 109 HVR-B02-62A 1/11/2001 AF 600.000 597.700 99.617 failed inspection") so it was replaced. AF was from old relay, recorded from 2nd test in file STP-403-1301 010112.pdf.

110 HVR-B02-62A 1/11/2001 AL 600.000 604.080 100.680 111 HVR-B02-62A 8/28/1999 AF 600.000 605.000 100.833 112 HVR-B02-62A 8/28/1999 AL 600.000 604.000 100.667

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Data Conversion Attachment 1 Page 8 of 28 Seq. AF/ Setpoint AF / AL Data AF / AL Data ID Tag ID Date AL (Seconds) (Seconds) (% Setpoint) Notes 113 HVR-B02-62A 4/10/1998 AF 600.000 597.000 99.500 114 HVR-B02-62A 4/10/1998 AL 600.000 594.000 99.000

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION AF-AL Data Attachment 1 Page 9 of 28 CAL INTERVAL = DRIFT = (Current CAL INTERVAL =

AF/AL DATA OUTLIERS Seq. CAL DATE AF/AL (Current Date - Seq. Cal AF Data - Prev (Current Date -

VALUE COMMENTS Previous Date) Cal AL Data) Previous Date)

ID Make/Model Number Tag ID mm/dd/yy Status % Setpoint Days Months ID Tag ID (% Setpoint) Days Months 1 Agastat ETR-14D3B E22-S004-62S3 02/24/08 AF 97.467 705 23.2 1 E22-S004-62S3 -1.533 705 23.2 2 Agastat ETR-14D3B E22-S004-62S3 02/24/08 AL 97.500 3 E22-S004-62S3 0.000 642 21.1 3 Agastat ETR-14D3B E22-S004-62S3 03/21/06 AF 99.333 642 21.1 5 E22-S004-62S3 0.000 393 12.9 4 Agastat ETR-14D3B E22-S004-62S3 03/21/06 AL 99.000 7 E22-S004-62S3 1.000 559 18.4 5 Agastat ETR-14D3B E22-S004-62S3 06/17/04 AF 99.333 393 12.9 9 E22-S004-62S3 -0.333 610 20.0 6 Agastat ETR-14D3B E22-S004-62S3 06/17/04 AL 99.333 11 E22-S004-62S3 0.000 330 10.8 7 Agastat ETR-14D3B E22-S004-62S3 05/21/03 AF 99.000 559 18.4 13 E22-S004-62S3 -0.667 602 19.8 8 Agastat ETR-14D3B E22-S004-62S3 05/21/03 AL 99.333 15 E22-S004-62S3 0.333 584 19.2 9 Agastat ETR-14D3B E22-S004-62S3 11/08/01 AF 98.000 610 20.0 17 E22-S004-62S3 -0.667 603 19.8 10 Agastat ETR-14D3B E22-S004-62S3 11/08/01 AL 98.000 19 E22-S004-62S3 -2.667 683 22.4 11 Agastat ETR-14D3B E22-S004-62S3 03/08/00 AF 98.333 330 10.8 12 Agastat ETR-14D3B E22-S004-62S3 03/08/00 AL 98.333 23 E22-S004-62S4 1.633 705 23.2 13 Agastat ETR-14D3B E22-S004-62S3 04/13/99 AF 98.333 602 19.8 25 E22-S004-62S4 1.000 642 21.1 14 Agastat ETR-14D3B E22-S004-62S3 04/13/99 AL 98.333 27 E22-S004-62S4 -0.333 393 12.9 15 Agastat ETR-14D3B E22-S004-62S3 08/19/97 AF 99.000 584 19.2 29 E22-S004-62S4 0.667 559 18.4 16 Agastat ETR-14D3B E22-S004-62S3 08/19/97 AL 99.000 31 E22-S004-62S4 0.333 610 20.0 17 Agastat ETR-14D3B E22-S004-62S3 01/13/96 AF 98.667 603 19.8 33 E22-S004-62S4 0.000 330 10.8 18 Agastat ETR-14D3B E22-S004-62S3 01/13/96 AL 98.667 35 E22-S004-62S4 -1.667 602 19.8 19 Agastat ETR-14D3B E22-S004-62S3 05/20/94 AF 99.333 683 22.4 37 E22-S004-62S4 1.667 584 19.2 20 Agastat ETR-14D3B E22-S004-62S3 05/20/94 AL 99.333 39 E22-S004-62S4 -1.333 603 19.8 21 Agastat ETR-14D3B E22-S004-62S3 07/06/92 AF 102.000 41 E22-S004-62S4 -2.133 683 22.4 22 Agastat ETR-14D3B E22-S004-62S3 07/06/92 AL 102.000 23 Agastat ETR-14D3B E22-S004-62S4 02/24/08 AF 99.633 705 23.2 45 E22-S004-62S5 -0.193 313 10.3 24 Agastat ETR-14D3B E22-S004-62S4 02/24/08 AL 99.700 47 E22-S004-62S5 0.765 672 22.1 25 Agastat ETR-14D3B E22-S004-62S4 03/21/06 AF 98.000 642 21.1 49 E22-S004-62S5 0.073 362 11.9 26 Agastat ETR-14D3B E22-S004-62S4 03/21/06 AL 98.000 51 E22-S004-62S5 2.149 393 12.9 27 Agastat ETR-14D3B E22-S004-62S4 06/17/04 AF 97.000 393 12.9 53 E22-S004-62S5 -0.614 559 18.4 28 Agastat ETR-14D3B E22-S004-62S4 06/17/04 AL 97.000 55 E22-S004-62S5 1.754 610 20.0 29 Agastat ETR-14D3B E22-S004-62S4 05/21/03 AF 97.333 559 18.4 57 E22-S004-62S5 0.088 330 10.8 30 Agastat ETR-14D3B E22-S004-62S4 05/21/03 AL 97.333 59 E22-S004-62S5 -0.596 602 19.8 31 Agastat ETR-14D3B E22-S004-62S4 11/08/01 AF 96.667 610 20.0 32 Agastat ETR-14D3B E22-S004-62S4 11/08/01 AL 96.667 63 E22-S004-62S6 0.423 313 10.3 33 Agastat ETR-14D3B E22-S004-62S4 03/08/00 AF 96.333 330 10.8 65 E22-S004-62S6 0.729 672 22.1 34 Agastat ETR-14D3B E22-S004-62S4 03/08/00 AL 96.333 67 E22-S004-62S6 0.328 362 11.9 35 Agastat ETR-14D3B E22-S004-62S4 04/13/99 AF 96.333 602 19.8 69 E22-S004-62S6 0.237 393 12.9 36 Agastat ETR-14D3B E22-S004-62S4 04/13/99 AL 96.333 71 E22-S004-62S6 0.474 559 18.4 37 Agastat ETR-14D3B E22-S004-62S4 08/19/97 AF 98.000 584 19.2 73 E22-S004-62S6 -0.193 610 20.0

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION AF-AL Data Attachment 1 Page 10 of 28 CAL INTERVAL = DRIFT = (Current CAL INTERVAL =

AF/AL DATA OUTLIERS Seq. CAL DATE AF/AL (Current Date - Seq. Cal AF Data - Prev (Current Date -

VALUE COMMENTS Previous Date) Cal AL Data) Previous Date)

ID Make/Model Number Tag ID mm/dd/yy Status % Setpoint Days Months ID Tag ID (% Setpoint) Days Months 38 Agastat ETR-14D3B E22-S004-62S4 08/19/97 AL 98.000 75 E22-S004-62S6 0.754 330 10.8 39 Agastat ETR-14D3B E22-S004-62S4 01/13/96 AF 96.333 603 19.8 77 E22-S004-62S6 -0.895 602 19.8 40 Agastat ETR-14D3B E22-S004-62S4 01/13/96 AL 96.333 41 Agastat ETR-14D3B E22-S004-62S4 05/20/94 AF 97.667 683 22.4 81 HVR-A02-62A -0.168 581 19.1 42 Agastat ETR-14D3B E22-S004-62S4 05/20/94 AL 97.667 83 HVR-A02-62A 1.048 503 16.5 43 Agastat ETR-14D3B E22-S004-62S4 07/06/92 AF 99.800 44 Agastat ETR-14D3B E22-S004-62S4 07/06/92 AL 99.800 87 HVR-A02-62A -0.950 501 16.5 45 Agastat ETR-14D3E E22-S004-62S5 02/24/08 AF 100.572 313 10.3 89 HVR-A02-62A 0.767 504 16.6 46 Agastat ETR-14D3E E22-S004-62S5 02/24/08 AL 100.583 91 HVR-A02-62A -2.667 503 16.5 47 Agastat ETR-14D3E E22-S004-62S5 04/17/07 AF 100.765 672 22.1 48 Agastat ETR-14D3E E22-S004-62S5 04/17/07 AL 100.765 49 Agastat ETR-14D3E E22-S004-62S5 06/14/05 AF 103.734 362 11.9 97 HVR-B02-62A -2.018 529 17.4 50 Agastat ETR-14D3E E22-S004-62S5 06/14/05 AL 100.000 99 HVR-B02-62A -5.103 504 16.6 51 Agastat ETR-14D3E E22-S004-62S5 06/17/04 AF 104.572 393 12.9 101 HVR-B02-62A 0.138 504 16.6 52 Agastat ETR-14D3E E22-S004-62S5 06/17/04 AL 103.661 103 HVR-B02-62A 0.130 507 16.7 53 Agastat ETR-14D3E E22-S004-62S5 05/21/03 AF 98.684 559 18.4 105 HVR-B02-62A 1.445 500 16.4 54 Agastat ETR-14D3E E22-S004-62S5 05/21/03 AL 102.423 107 HVR-B02-62A -2.543 85 2.8 55 Agastat ETR-14D3E E22-S004-62S5 11/08/01 AF 99.649 610 20.0 109 HVR-B02-62A -1.050 502 16.5 56 Agastat ETR-14D3E E22-S004-62S5 11/08/01 AL 99.298 111 HVR-B02-62A 1.833 505 16.6 57 Agastat ETR-14D3E E22-S004-62S5 03/08/00 AF 97.912 330 10.8 58 Agastat ETR-14D3E E22-S004-62S5 03/08/00 AL 97.895 59 Agastat ETR-14D3E E22-S004-62S5 04/13/99 AF 97.895 602 19.8 60 Agastat ETR-14D3E E22-S004-62S5 04/13/99 AL 97.825 61 Agastat ETR-14D3E E22-S004-62S5 08/19/97 AF 98.474 62 Agastat ETR-14D3E E22-S004-62S5 08/19/97 AL 98.491 63 Agastat ETR-14D3E E22-S004-62S6 02/24/08 AF 101.570 313 10.3 64 Agastat ETR-14D3E E22-S004-62S6 02/24/08 AL 101.599 65 Agastat ETR-14D3E E22-S004-62S6 04/17/07 AF 101.129 672 22.1 66 Agastat ETR-14D3E E22-S004-62S6 04/17/07 AL 101.148 67 Agastat ETR-14D3E E22-S004-62S6 06/14/05 AF 103.661 362 11.9 68 Agastat ETR-14D3E E22-S004-62S6 06/14/05 AL 100.401 69 Agastat ETR-14D3E E22-S004-62S6 06/17/04 AF 103.443 393 12.9 70 Agastat ETR-14D3E E22-S004-62S6 06/17/04 AL 103.333 71 Agastat ETR-14D3E E22-S004-62S6 05/21/03 AF 99.421 559 18.4 72 Agastat ETR-14D3E E22-S004-62S6 05/21/03 AL 103.206 73 Agastat ETR-14D3E E22-S004-62S6 11/08/01 AF 98.947 610 20.0 74 Agastat ETR-14D3E E22-S004-62S6 11/08/01 AL 98.947

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION AF-AL Data Attachment 1 Page 11 of 28 CAL INTERVAL = DRIFT = (Current CAL INTERVAL =

AF/AL DATA OUTLIERS Seq. CAL DATE AF/AL (Current Date - Seq. Cal AF Data - Prev (Current Date -

VALUE COMMENTS Previous Date) Cal AL Data) Previous Date)

ID Make/Model Number Tag ID mm/dd/yy Status % Setpoint Days Months ID Tag ID (% Setpoint) Days Months 75 Agastat ETR-14D3E E22-S004-62S6 03/08/00 AF 99.175 330 10.8 76 Agastat ETR-14D3E E22-S004-62S6 03/08/00 AL 99.140 77 Agastat ETR-14D3E E22-S004-62S6 04/13/99 AF 98.509 602 19.8 78 Agastat ETR-14D3E E22-S004-62S6 04/13/99 AL 98.421 79 Agastat ETR-14D3E E22-S004-62S6 08/19/97 AF 99.439 80 Agastat ETR-14D3E E22-S004-62S6 08/19/97 AL 99.404 81 Agastat ETR-14D3N HVR-A02-62A 03/04/08 AF 98.382 581 19.1 82 Agastat ETR-14D3N HVR-A02-62A 03/04/08 AL 98.378 83 Agastat ETR-14D3N HVR-A02-62A 08/01/06 AF 98.715 503 16.5 84 Agastat ETR-14D3N HVR-A02-62A 08/01/06 AL 98.550 85 Agastat ETR-14D3N HVR-A02-62A 03/16/05 AF FAIL 505 16.6 86 Agastat ETR-14D3N HVR-A02-62A 03/16/05 AL 97.667 87 Agastat ETR-14D3N HVR-A02-62A 10/28/03 AF 95.667 501 16.5 88 Agastat ETR-14D3N HVR-A02-62A 10/28/03 AL 95.667 89 Agastat ETR-14D3N HVR-A02-62A 06/14/02 AF 96.600 504 16.6 90 Agastat ETR-14D3N HVR-A02-62A 06/14/02 AL 96.617 91 Agastat ETR-14D3N HVR-A02-62A 01/26/01 AF 96.000 503 16.5 92 Agastat ETR-14D3N HVR-A02-62A 01/26/01 AL 95.833 93 Agastat ETR-14D3N HVR-A02-62A 09/11/99 AF FAIL 505 16.6 94 Agastat ETR-14D3N HVR-A02-62A 09/11/99 AL 98.667 95 Agastat ETR-14D3N HVR-A02-62A 04/24/98 AF 98.267 96 Agastat ETR-14D3N HVR-A02-62A 04/24/98 AL 98.267 97 Agastat ETR-14D3N HVR-B02-62A 03/24/08 AF 96.648 529 17.4 98 Agastat ETR-14D3N HVR-B02-62A 03/24/08 AL 96.663 Identified as 99 Agastat ETR-14D3N HVR-B02-62A 10/12/06 AF 94.667 outlier and 504 16.6 removed 100 Agastat ETR-14D3N HVR-B02-62A 10/12/06 AL 98.667 101 Agastat ETR-14D3N HVR-B02-62A 05/26/05 AF 99.773 504 16.6 102 Agastat ETR-14D3N HVR-B02-62A 05/26/05 AL 99.770 103 Agastat ETR-14D3N HVR-B02-62A 01/08/04 AF 99.670 507 16.7 104 Agastat ETR-14D3N HVR-B02-62A 01/08/04 AL 99.635 105 Agastat ETR-14D3N HVR-B02-62A 08/19/02 AF 99.563 500 16.4 106 Agastat ETR-14D3N HVR-B02-62A 08/19/02 AL 99.540 107 Agastat ETR-14D3N HVR-B02-62A 04/06/01 AF 98.137 85 2.8 108 Agastat ETR-14D3N HVR-B02-62A 04/06/01 AL 98.118 109 Agastat ETR-14D3N HVR-B02-62A 01/11/01 AF 99.617 502 16.5 110 Agastat ETR-14D3N HVR-B02-62A 01/11/01 AL 100.680 111 Agastat ETR-14D3N HVR-B02-62A 08/28/99 AF 100.833 505 16.6 112 Agastat ETR-14D3N HVR-B02-62A 08/28/99 AL 100.667

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION AF-AL Data Attachment 1 Page 12 of 28 CAL INTERVAL = DRIFT = (Current CAL INTERVAL =

AF/AL DATA OUTLIERS Seq. CAL DATE AF/AL (Current Date - Seq. Cal AF Data - Prev (Current Date -

VALUE COMMENTS Previous Date) Cal AL Data) Previous Date)

ID Make/Model Number Tag ID mm/dd/yy Status % Setpoint Days Months ID Tag ID (% Setpoint) Days Months 113 Agastat ETR-14D3N HVR-B02-62A 04/10/98 AF 99.500 114 Agastat ETR-14D3N HVR-B02-62A 04/10/98 AL 99.000

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Outliers & Summary Attachment 1 Page 13 of 28 Extreme Final Drift Data Drift Cal Interval Cal Interval Seq. ID Tag ID Studentized Set

(% Setpoint) (Days) (Days)

Deviate (T) (% Setpoint) 1 E22-S004-62S3 -1.533 705 0.988 -1.533 705 3 E22-S004-62S3 0.000 642 0.127 Raw Drift Data Statistics Summary 0.000 642 5 E22-S004-62S3 0.000 393 0.127 (Initial Data Set) 0.000 393 7 E22-S004-62S3 1.000 559 0.854 Mean (Average) -0.1746 1.000 559 9 E22-S004-62S3 -0.333 610 0.115 Variance 1.8911 -0.333 610 11 E22-S004-62S3 0.000 330 0.127 Std. Dev. 1.3752 0.000 330 13 E22-S004-62S3 -0.667 602 0.358 Sample Size (Count) 49 -0.667 602 15 E22-S004-62S3 0.333 584 0.369 Maximum 2.149 0.333 584 17 E22-S004-62S3 -0.667 603 0.358 Median 0.000 -0.667 603 19 E22-S004-62S3 -2.667 683 1.812 Minimum -5.103 -2.667 683 Range 7.253 23 E22-S004-62S4 1.633 705 1.315 Sum -8.556 1.633 705 25 E22-S004-62S4 1.000 642 0.854 Kurtosis 2.315 1.000 642 27 E22-S004-62S4 -0.333 393 0.115 Skewness -1.110 -0.333 393 29 E22-S004-62S4 0.667 559 0.612 0.667 559 31 E22-S004-62S4 0.333 610 0.369 Critical T-Value (Upper 5% Signif.) 2.96 0.333 610 33 E22-S004-62S4 0.000 330 0.127 0.000 330 35 E22-S004-62S4 -1.667 602 1.085 Equation for Each Studentized Deviate: T= lDrift-Meanl/Std. Dev. -1.667 602 37 E22-S004-62S4 1.667 584 1.339 Crit T Value Lookup Value from Ref. 4.1.3 Table 2, per sample 1.667 584 39 E22-S004-62S4 -1.333 603 0.843 size. See Sections 3.6.1 and 3.6.2 of Reference 4.1.3. -1.333 603 41 E22-S004-62S4 -2.133 683 1.424 Outliers will be Denoted as such in "Final Data Set" column. -2.133 683 One Outlier Detected and Removed (Seq. 99) 45 E22-S004-62S5 -0.193 313 0.013 -0.193 313 47 E22-S004-62S5 0.765 672 0.683 Drift Data Statistics Summary 0.765 672 49 E22-S004-62S5 0.073 362 0.180 (Final Data Set) 0.073 362 51 E22-S004-62S5 2.149 393 1.690 Mean (Average) -0.0719 2.149 393 53 E22-S004-62S5 -0.614 559 0.320 Variance 1.4037 -0.614 559 55 E22-S004-62S5 1.754 610 1.403 Std. Dev. 1.1848 1.754 610 57 E22-S004-62S5 0.088 330 0.191 Sample Size (Count) 48 0.088 330 59 E22-S004-62S5 -0.596 602 0.307 Maximum 2.149 -0.596 602 Median 0.036 63 E22-S004-62S6 0.423 313 0.434 Minimum -2.667 0.423 313 65 E22-S004-62S6 0.729 672 0.657 Range 4.816 0.729 672 67 E22-S004-62S6 0.328 362 0.365 Sum -3.453 0.328 362 69 E22-S004-62S6 0.237 393 0.299 Kurtosis -0.079 0.237 393 71 E22-S004-62S6 0.474 559 0.471 Skewness -0.448 0.474 559 73 E22-S004-62S6 -0.193 610 0.013 -0.193 610 75 E22-S004-62S6 0.754 330 0.676 0.754 330 77 E22-S004-62S6 -0.895 602 0.524 -0.895 602

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Outliers & Summary Attachment 1 Page 14 of 28 Extreme Final Drift Data Drift Cal Interval Cal Interval Seq. ID Tag ID Studentized Set

(% Setpoint) (Days) (Days)

Deviate (T) (% Setpoint) 81 HVR-A02-62A -0.168 581 0.005 -0.168 581 83 HVR-A02-62A 1.048 503 0.889 1.048 503 87 HVR-A02-62A -0.950 501 0.564 -0.950 501 89 HVR-A02-62A 0.767 504 0.684 0.767 504 91 HVR-A02-62A -2.667 503 1.812 -2.667 503 97 HVR-B02-62A -2.018 529 1.341 -2.018 529 99 HVR-B02-62A -5.103 504 3.584 OUTLIER OUTLIER 101 HVR-B02-62A 0.138 504 0.228 0.138 504 103 HVR-B02-62A 0.130 507 0.222 0.130 507 105 HVR-B02-62A 1.445 500 1.178 1.445 500 107 HVR-B02-62A -2.543 85 1.723 -2.543 85 109 HVR-B02-62A -1.050 502 0.637 -1.050 502 111 HVR B02 62A HVR-B02-62A 1 833 1.833 505 1 460 1.460 1 833 1.833 505

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Pooling Tests Attachment 1 Page 15 of 28 These relays are the same ETR series, but with different ranges to accommodate the different setpoints.

The relays perform the same 'delay on pull in' function.

Group 1: E22-S004-62S3, 4 Group 2: E22-S004-62S5, 6 Group 2: E22-S004-62S5, 6 Group 3: HVR-A02-62A, HVR-B02-62A Setpoint, Group 1: 3 seconds Setpoint, Group 2: 57 seconds and 54.9 seconds Setpoint, Group 2: 57 seconds and 54.9 seconds Setpoint, Group 3: 600 seconds t-Test: Two-Sample Assuming Unequal Variances t-Test: Two-Sample Assuming Unequal Variances Group 1 Group 2 Group 2 Group 3 Mean -0.235 0.330122 Mean 0.330122 -0.33625 Variance 1.404617 0.655107 Variance 0.655107 2.31835 Observations 20 16 Observations 16 12 Hypothesized Mean Difference 0 Hypothesized Mean Difference 0 df 33 df 16 t Stat -1.69488 t Stat 1.377142 P(T<=t) one-tail 0.049758 P(T<=t) one-tail 0.093716 t Critical one-tail 1.69236 t Critical one-tail 1.745884 P(T<=t) two-tail 0.099517 P(T<=t) two-tail 0.187431 t Critical two-tail 2.034515 t Critical two-tail 2.119905 Standard Deviation 1.185165 0.809387 Standard Deviation 0.809387 1.522613

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Pooling Tests Attachment 1 Page 16 of 28 Group 1: E22-S004-62S3, 4 Group 3: HVR-A02-62A, HVR-B02-62A Setpoint, Group 1: 3 seconds Setpoint, Group 3: 600 seconds t-Test: Two-Sample Assuming Unequal Variances Group 1 Group 3 Mean -0.235 -0.33625 Variance 1.404617 2.31835 Observations 20 12 Hypothesized Mean Difference 0 df 19 t Stat 0.197272 P(T<=t) one-tail 0.422855 t Critical one-tail 1.729133 P(T<=t) two-tail 0.84571 t Critical two-tail 2.093024 Standard Deviation 1.185165 1.522613

Conclusion:

The setpoints for these 3 switch groups vary greatly, and are tested for pooling.

The standard deviations for the two groups are similar, and in all cases the magnitude of the t statistic is less than the t Critical two-tail value. From an engineering standpoint, there is little reason that these switches should perform differently. The t Tests confirm this hypothesis.Therefore, these groups are combined for analysis in units of "% setpoint".

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION W Test Attachment 1 Page 17 of 28 Drift bi (Per "i" an-i+1*

Values Step 4)

-2.667 1 0.3789 1.8248 Specific W Normality Test Methodology from Reference 4.1.7 and Section 19 of Reference 4.1.4

-2.667 2 0.2604 1.1718

-2.543 3 0.2281 0.9803 Steps to Perform:

-2.133 4 0.2045 0.7771 1. Paste all final drift data into column 1.

-2.018 5 0.1855 0.6774 2. Sort in ascending order.

2

-1.667 6 0.1693 0.5268 3. Calculate S taking the variance of the drift data adjusted by (Count-1)

-1.533 7 0.1551 0.4004

-1.333 8 0.1423 0.3320 S2 = (n-1)(Variance (Drift))

-1.050 9 0.1306 0.2677

-0.950 10 0.1197 0.2055 where: n = Count

-0.895 11 0.1095 0.1817

-0.667 12 0.0998 0.1418 4. Calculate the Quantity b:

-0.667 13 0.0906 0.1264

-0.614 14 0.0817 0.1046 b = Sum[(an-i+1)(xn-i+1 - xi)]

-0.596 15 0.0731 0.07823

-0.333 16 0.0648 0.04898 where: i = 1 to k

-0.333 17 0.0568 0.03787 k = (n)/2

-0.193 18 0.0489 0.02574 xi = Drift value at point number i

-0.193 19 0.0411 0.02141 an-i+1 values are taken from Table 1 of Reference 4.1.7.

2

-0.168 20 0.0335 0.01357 5. Calculate b .

0.000 21 0.0259 0.00358 6. Compute the W Statistic and compare to the critical value at the 5% confidence 0.000 22 0.0185 0.00240 level. The table of critical values is given as Table 2 on page 9 of Reference 4.1.7.

0.000 23 0.0111 0.00097 2 2 0.000 24 0.0037 0.00027 W = b /S Results:

0.073 Since the W statistic, 0.9584, is greater than the 0.088 Computed Values critical value for W, 0.947, this test does not 0.130 b= 7.9515 S2 = 65.97272 reject the assumption of normality for this data set.

0.138 (Per Step 4) b= 7.9515 0.237

From Table 1 of Ref. 4.1.7. b2 = 63.2263 0.328 Count (n): 48 0.333 W = b2/S2 = 0.9584 0.333 W Critical = 0.947 5% Significance From Table 2 of Reference 4.1.7.

0.423

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION W Test Attachment 1 Page 18 of 28 Drift bi (Per "i" an-i+1*

Values Step 4) 0.474 0.667 0.729 0.754 0.765 0.767 1.000 1.000 1.048 1.445 1.633 1.667 1.754 1.833 2.149

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Histogram Attachment 1 Page 19 of 28 Normal Cumulative Expected Bin No. StDev Bin Maximums = Observed Distribution Bin Descriptions Probability (CPi) Frequency No. (NS) Mean + (NS*StDev) Frequency Probability (Table 18-2 Ref 4.1.4) (Ei = Pnorm*N)

(Pnorm = CPi-CPi-1) 1 Up to - 2.5 Standard Deviations from Mean -2.5 -3.0339 0 0.0062 0.0062 0.2976 2 -2.5 to -2.0 Standard Deviations from Mean -2.0 -2.4415 3 0.0228 0.0166 0.7944 3 -2.0 to -1.5 Standard Deviations from Mean -1.5 -1.8491 2 0.0668 0.0441 2.1144 4 -1.5 to -1.0 Standard Deviations from Mean -1.0 -1.2567 3 0.1587 0.0919 4.4088 5 -1.0 to -0.5 Standard Deviations from Mean -0.5 -0.6643 5 0.3086 0.1499 7.1952 6 -0.5 Standard Deviations from Mean to Mean 0.0 -0.0719 7 0.5000 0.1915 9.1896 7 Mean to +0.5 Standard Deviations from Mean 0.5 0.5204 14 0.6915 0.1915 9.1896 8 +0.5 to +1.0 Standard Deviations from Mean 1.0 1.1128 8 0.8414 0.1499 7.1952 9 +1.0 to +1.5 Standard Deviations from Mean 1.5 1.7052 3 0.9332 0.0919 4.4088 10 +1.5 to +2.0 Standard Deviations from Mean 2.0 2.2976 3 0.9773 0.0441 2.1144 11 +2.0 to +2.5 Standard Deviations from Mean 2.5 2.8900 0 0.9938 0.0166 0.7944 12 More than Mean + 2.5 Standard Deviations More More 0 1.0000 0.0062 0.2976 Totals 48 48 Percentage for Observed Observed

+/- Sigma Bounds Normal Drift Values Percentages Distribution 2.5 (Bins 2-11) 48 100.00% Mean -0.0719 2 (Bins 3-10) 45 93.75% 95.45% Std. Dev. 1.1848 1.5 (Bins 4-9) 40 83.33% Sample Size 48 1 (Bins 5-8) 34 70.83% 68.27%

0.5 (Bins 6-7) 21 43.75%

Methodology for Histogram Taken from Section C.5 of Reference 4.1.4 and Section 3.7.5 of Reference 4.1.3

1. Order the drift data in ascending order.

2. Obtain mean, standard deviation, and sample size.

3. Establishing bins in 1/2 sigma increments from the mean to 2.5 sigma in both directions, derive the upper bin limits, in units of drift, based on the values of the mean and standard deviation.

4. Obtain expected frequency for a normal distribution in each bin.

5. Manually compute the number of observed drift data points within each bin, and list under observed frequency.

6. Plot the Expected Frequency and the Observed Frequency Data on the Histogram for comparison to each other.

Results: Since the data passed the W Test for normality, a Coverage Analysis is not necessary. The Histogram is provided for information only.

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Histogram Attachment 1 Page 20 of 28 Histogram of Drift - River Bend Station Agastat ETR Relays 16 14 Observed Frequency 12 Normal Distribution 10 Population 8

6 4

2 0

-3.0339 -2.4415 -1.8491 -1.2567 -0.6643 -0.0719 0.5204 1.1128 1.7052 2.2976 2.8900 More

% Setpoint

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Scatter Plot Attachment 1 Page 21 of 28 Scatter Plot - River Bend Station Agastat ETR Relays 3.0 y = -5E-05x - 5E-02 2.0 Linear (Drift) 1.0

% Setpoint 0.0

-1.0

-2.0

-3.0 0 100 200 300 400 500 600 700 800 Time (Days)

Note: Equation on Scatter Plot is computer generated, based on the associated trend line.

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Binning Analysis Attachment 1 Page 22 of 28 Bin Statistics Bin 1 Bin 2 Bin 3 Bin 4 Bin 5 Bin 6 Bin 7 Count 1 12 33 2 Standard Dev. N/A 0.6507 1.2301 2.2392 Mean -2.5433 0.2938 -0.1374 0.0500 Mean Interval 85.00 353.50 578.52 705.00 Max Interval 85 393 683 705 Bin Definition and Selection Bin Hi Limit Bin Population Bins Bins (Days) Count Percentage Included 1 45 0 0.0%

2 135 1 2.1%

3 230 0 0.0%

4 460 12 25.0% 4 5 690 33 68.8% 5 6 915 2 4.2%

7 Over 0 0.0%

Total Count: 48 100%

See Section 3.8.3 of Reference 4.1.3 for Binning Analysis Methodology.

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Binning Analysis Attachment 1 Page 23 of 28 Graph Summary Bin Time (days) Std Dev Mean Binning Analysis - River Bend Station 4 353.50 0.6507 0.2938 Agastat ETR Relays 5 578.52 1.2301 -0.1374 Std Dev Mean Test of Variances 1.4 F Critical 2.561 1.2 Variance Ratio 3.574 1.0 Potential Strong TD of Yes 0.8 Random Drift?

Drift (% Setpo oint) 0.6 0.4 0.2 0.0

-0.2

-0.4 300 350 400 450 500 550 600 Time (Days)

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Regression - Drift Attachment 1 Page 24 of 28 Regression Analysis - Drift F Critical REGRESSION ANALYSIS 3.199582

SUMMARY

OUTPUT Regression Statistics Multiple R 0.005104 R Square 0.000026 Adjusted R Square -0.021713 Standard Error 1.197561 Observations 48 ANOVA df SS MS F Significance F Regression 1 0.001719 0.00171885 0.001199 0.972533 Residual 46 65.971003 1.43415224 Total 47 65.972722 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0%

Intercept -0.048324 0.703668 -0.068675 0.945546 -1.464735 1.368087 -1.464735 1.368087 X Variable 1 -0.000046 0.001319 -0.034620 0.972533 -0.002700 0.002609 -0.002700 0.002609

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Regression - Drift Attachment 1 Page 25 of 28 Drift Regression Line Fit Plot 3.0 2.0 Drift (% Setpoint) 1.0 D ift Drift 0.0 Predicted Drift

-1.0

-2.0

-3.0 0 200 400 600 800 Time (Days)

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Regression - AV of Drift Attachment 1 Page 26 of 28 Regression Analysis - AV of Drift F Critical ABSOLUTE VALUE 3.199582 REGRESSION ANALYSIS

SUMMARY

OUTPUT Regression Statistics Multiple R 0.175493 R Square 0.030798 Adjusted R Square 0.009728 Standard Error 0.764217 Observations O 48 8

ANOVA df SS MS F Significance F Regression 1 0.853680 0.853680 1.461713 0.232836 Residual 46 26.865255 0.584027 Total 47 27.718935 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0%

Intercept 0.369353 0.449042 0.822536 0.415015 -0.534521 1.273228 -0.534521 1.273228 X Variable 1 0.001017 0.000842 1.209013 0.232836 -0.000676 0.002711 -0.000676 0.002711

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Regression - AV of Drift Attachment 1 Page 27 of 28 AV of Drift Regression Line Fit Plot 3.0 2.5 AV of Drift (% Setp point) 20 2.0 AV of Drift 1.5 Predicted AV of Drift 1.0 0.5 0.0 0 200 400 600 800 Time (Days)

DRIFT ANALYSIS AGASTAT ETR SERIES TIME DELAY RELAYS G13.18.6.3-014 Rev. 0 RIVER BEND STATION Analyzed Drift (DA) Attachment 1 Page 28 of 28 Drift Bias Determination First, the bias term is evaluated for significance per Section 3.10 of Reference 4.1.3.

Per Outlier Statistical Summary, Count (N) 48 Drift Data Points Drift Bias Term (Mean) -0.0719 % Setpoint FDS Standard Deviation (Stdev) 1.1848 % Setpoint t for Count = 48 Data Points 2.000 (Ref. 4.1.3, Table 4)

[Bias (Crit) = t

Stdev / (N)^0.5]

Signficant Bias Critical Value 0.342 Deg F Therefore, the bias value for this drift data set is not signficant, since the magnitude of the Bias is less than the Critical Bias Value.

DAbias = Negligible Random Drift Determination Time Dependency Moderate Count (N) 48 Drift Data Points Bin 5 Standard Deviation (Stdev) 1.2301 % Setpoint Mean Bin 5 Time Interval 579 Days Maximum Required Cal Interval 915 Days Tolerance Interval Factor (TIF) 2.408 (Ref. 4.1.3, Table 1)

[Current Interval Drift = Stdev

TIF]

DArandom (current) = +/- 2.962 % Setpoint

[Extrap Drift = DArandom (current) * (Required Cal Interval / Mean Bin 5 Cal Interval)1/2]

DArandom (extrap) = +/- 3.725 % Setpoint for up to 915 Days

G13.18.6.3-014 Attachment 2 Page 1 of 8 DESIGN VERIFICATION COVER PAGE ANO-1 ANO-2 IP-2 IP-3 JAF PLP PNPS VY GGNS RBS W3 NP Document No. G13.18.6.3-014 Revision No. Page 1 of 0

Title:

Drift Study for General Electric Model SAM11B Time Delay Relays Quality Related Augmented Quality Related DV Method: Design Review Alternate Calculation Qualification Testing VERIFICATION REQUIRED DISCIPLINE VERIFICATION COMPLETE AND COMMENTS RESOLVED (DV print, sign, and date)

Electrical Mechanical Richard J. Hannigan Instrument and Control 2/11/09 Civil/Structural Nuclear Originator:

R.A. Hunter 2/11/09 Print/Sign/Date After Comments Have Been Resolved

G13.18.6.3-014 Attachment 2 Page 2 of 8 DESIGN VERIFICATION CHECKLIST SHEET 1 OF 3 IDENTIFICATION: DISCIPLINE:

Civil/Structural Document

Title:

Drift Study for General Electric Model SAM11B Time Delay Relays Electrical Doc. No.:G13.18.6.3-013 Rev. 0 QA Cat. 1 I&C Mechanical Richard J. Hannigan 2/11/09 Nuclear Print Sign Date Verifier: Other Manager authorization for supervisor performing Verification.

N/A Print Sign Date METHOD OF VERIFICATION:

Design Review Alternate Calculations Qualification Test The following basic questions are addressed as applicable, during the performance of any design verification. These questions are based on the requirements of ANSI N45.2.11 - 1974.

NOTE The reviewer can use the Comments/Continuation sheet at the end for entering any comment/resolution along with the appropriate question number. Additional items with new question numbers can also be entered.

1. Design Inputs - Were the inputs correctly selected and incorporated into the design?

(Design inputs include design bases, plant operational conditions, performance requirements, regulatory requirements and commitments, codes, standards, field data, etc.

All information used as design inputs should have been reviewed and approved by the responsible design organization, as applicable.

All inputs need to be retrievable or excerpts of documents used should be attached.

See site specific design input procedures for guidance in identifying inputs.)

Yes No N/A

2. Assumptions - Are assumptions necessary to perform the design activity adequately described and reasonable? Where necessary, are assumptions identified for subsequent re-verification when the detailed activities are completed? Are the latest applicable revisions of design documents utilized?

Yes No N/A

3. Quality Assurance - Are the appropriate quality and quality assurance requirements specified?

Yes No N/A

G13.18.6.3-014 Attachment 2 Page 3 of 8 DESIGN VERIFICATION CHECKLIST SHEET 2 OF 3

4. Codes, Standards and Regulatory Requirements - Are the applicable codes, standards and regulatory requirements, including issue and addenda properly identified and are their requirements for design met?

Yes No N/A

5. Construction and Operating Experience - Have applicable construction and operating experience been considered?

Yes No N/A

6. Interfaces - Have the design interface requirements been satisfied and documented?

Yes No N/A

7. Methods - Was an appropriate design or analytical (for calculations) method used?

Yes No N/A

8. Design Outputs - Is the output reasonable compared to the inputs?

Yes No N/A

9. Parts, Equipment and Processes - Are the specified parts, equipment, and processes suitable for the required application?

Yes No N/A

10. Materials Compatibility - Are the specified materials compatible with each other and the design environmental conditions to which the material will be exposed?

Yes No N/A

11. Maintenance requirements - Have adequate maintenance features and requirements been specified?

Yes No N/A

12. Accessibility for Maintenance - Are accessibility and other design provisions adequate for performance of needed maintenance and repair?

Yes No N/A

13. Accessibility for In-service Inspection - Has adequate accessibility been provided to perform the in-service inspection expected to be required during the plant life?

Yes No N/A

14. Radiation Exposure - Has the design properly considered radiation exposure to the public and plant personnel?

Yes No N/A

15. Acceptance Criteria - Are the acceptance criteria incorporated in the design documents sufficient to allow verification that design requirements have been satisfactorily accomplished?

Yes No N/A

16. Test Requirements - Have adequate pre-operational and subsequent periodic test requirements been appropriately specified?

Yes No N/A

G13.18.6.3-014 Attachment 2 Page 4 of 8 DESIGN VERIFICATION CHECKLIST SHEET 3 OF 3

17. Handling, Storage, Cleaning and Shipping - Are adequate handling, storage, cleaning and shipping requirements specified?

Yes No N/A

18. Identification Requirements - Are adequate identification requirements specified?

Yes No N/A

19. Records and Documentation - Are requirements for record preparation, review, approval, retention, etc., adequately specified? Are all documents prepared in a clear legible manner suitable for microfilming and/or other documentation storage method? Have all impacted documents been identified for update as necessary?

Yes No N/A

20. Software Quality Assurance- ENN sites: For a calculation that utilized software applications (e.g., GOTHIC, SYMCORD), was it properly verified and validated in accordance with EN- IT-104 or previous site SQA Program?

ENS sites: This is an EN-IT-104 task. However, per ENS-DC-126, for exempt software, was it verified in the calculation?

Yes No N/A

21. Has adverse impact on peripheral components and systems, outside the boundary of the document being verified, been considered?

Yes No N/A

G13.18.6.3-014 Attachment 2 Page 5 of 8 DESIGN VERIFICATION COMMENT SHEET SHEET 1 OF 1 Comments / Continuation Sheet Question Comments Resolution Initial/Date NONE

G13.18.6.3-014 Attachment 2 Page 6 of 8 During the independent review of calculation G13.18.6.3-014, alternate applications Lotus 1 3 and Quattro Pro were used to validate the results generated by MS Excel in the calculation.

The reviewer independently generated the G13.18.6.3-014 results. In the table below the results of the validation for the G13.18.6.3-014 values and the values produced by Lotus 1-2-3 and Quattro Pro are illustrated for the Final Data Set - after removal of the single outlier. The results from Lotus 1-2-3 and Quattro Pro validated the calculation G13.18.6.3-014 results generated by MS Excel. Minor differences in the values between the MS Excel generated results and the Lotus 1-2-3 and Quattro Pro generated results were reviewed and can be attributed to rounding and conversion between applications. Below is a partial listing of some of the values from G13.18.6.3-014 that were validated:

G13.18.6.3-014 Validation Validation Parameter Value Value Application Valid?

Mean -0.0719 -0.0719 Lotus 1-2-3 Yes Variance 1.4037 1.4037 Lotus 1-2-3 Yes Standard 1.1848 1.1848 Lotus 1-2-3 Yes Deviation Count 48 48 Lotus 1-2-3 Yes Max 2.149 2.149 Lotus 1-2-3 Yes Median 0.036 0.036 Lotus 1-2-3 Yes Min -2.667 -2.667 Lotus 1-2-3 Yes Range 4.816 4.816 Lotus 1-2-3 Yes Sum -3.453 -3.453 Lotus 1-2-3 Yes Kurtosis -0.079 -0.079 Lotus 1-2-3 Yes Skewness -0.448 -0.448 Lotus 1-2-3 Yes Outliers Sequ. ID 99 identified Sequ. ID 99 identified Lotus 1-2-3 Yes as an outlier and as an outlier and removed removed Visual inspection Drift scatter plot N/A shows agreement Lotus 1-2-3 Yes with trend line between the scatter plots and trend lines Drift scatter plot trend line Y = -5E-05x - 5E-02 Y = -4.57E-05x - Lotus 1-2-3 Yes 0.0483 W Test Value 0.9584 (does not reject 0.9584 (does not reject Lotus 1-2-3 Yes assumption of assumption of normality) normality)

Visual inspection Histogram N/A shows agreement Lotus 1-2-3 Yes between the histograms

G13.18.6.3-014 Attachment 2 Page 7 of 8 G13.18.6.3-014 Validation Validation Parameter Value Value Application Valid?

Data within 0.5 Standard Deviations 21 21 Lotus 1-2-3 Yes Data within 1.0 Standard Deviation 34 34 Lotus 1-2-3 Yes Data within 1.5 Standard Deviations 40 40 Lotus 1-2-3 Yes Data within 2.0 Standard Deviations 45 45 Lotus 1-2-3 Yes Data within 2.5 Standard Deviations 48 48 Lotus 1-2-3 Yes Bin 2 count 1 1 Lotus 1-2-3 Yes Bin 2 drift Standard Deviation NA NA Lotus 1-2-3 Yes Bin 2 drift mean -2.5433 -2.5433 Lotus 1-2-3 Yes Bin 2 interval mean 85.00 85.00 Lotus 1-2-3 Yes Bin 2 interval Yes maximum 85 85 Lotus 1-2-3 Bin 4 count 12 12 Lotus 1-2-3 Yes Bin 4 drift Standard Deviation 0.6507 0.6507 Lotus 1-2-3 Yes Bin 4 drift mean 0.2938 0.2938 Lotus 1-2-3 Yes Bin 4 interval mean 353.50 353.50 Lotus 1-2-3 Yes Bin 4 interval Yes maximum 393 393 Lotus 1-2-3 Bin 5 count 33 33 Lotus 1-2-3 Yes Bin 5 drift Standard Deviation 1.2301 1.2301 Lotus 1-2-3 Yes Bin 5 drift mean -0.1374 -0.1374 Lotus 1-2-3 Yes Bin 5 interval mean 578.52 578.52 Lotus 1-2-3 Yes Bin 5 interval Yes maximum 683 683 Lotus 1-2-3 Bin 6 count 2 2 Lotus 1-2-3 Yes Bin 6 drift Standard Deviation 2.2392 2.2392 Lotus 1-2-3 Yes Bin 6 drift mean 0.0500 0.0500 Lotus 1-2-3 Yes Bin 6 interval mean 705.00 705.00 Lotus 1-2-3 Yes Bin 6 interval Yes maximum 705 705 Lotus 1-2-3 Binning Analysis 3.574 3.574 Lotus 1-2-3 Yes Ratio of Variances Binning Analysis 2.561 3.561 Quattro Pro Yes F Critical

G13.18.6.3-014 Attachment 2 Page 8 of 8 G13.18.6.3-014 Validation Validation Parameter Value Value Application Valid?

Visual inspection Drift Regression NA shows agreement Lotus 1-2-3 Yes Scatter Plot between the two scatter plots and trend lines.

Drift Regression Y = -0.000046x Y = -0.000046x Scatter Plot Trend Line -0.048324 -0.048301 Quattro Pro Yes Drift Regression R Square Value 0.000026 0.000026 Quattro Pro Yes Drift Regression Yes F Value 0.001199 0.001201 Quattro Pro F Crit Value 3.199582 3.199582 Quattro Pro Yes Drift Regression P-Value 0.972533 0.972506 Quattro Pro Yes Visual inspection AV Drift Regression NA shows agreement Lotus 1-2-3 Yes Scatter Plot between the two scatter plots and trend lines.

AV Drift Regression Y = 0.001017x Y = 0.001017x Scatter Plot Trend Line + 0.369353 + 0.369353 Quattro Pro Yes AV Drift Regression R Square Value 0.030798 0.030798 Quattro Pro Yes AV Drift Regression F Value 1.461713 1.461713 Quattro Pro Yes F Crit Value 3.199582 3.199582 Quattro Pro Yes AV Drift Regression P-Value 0.232836 0.232705 Quattro Pro Yes Other values, including those based on the above parameters, were checked using hand calculations.

v t e Letter Sequence Other
TAC:ME7767, (Approved, Closed)
Initiation Request, Request, Request, Request, Request, Request, Request, Request Acceptance Supplement Administration Questions 12 March 2012 7 August 2012 5 December 2012 Answers 5 September 2012 9 January 2013 Results Approval Other: ML13018A084, ML13018A100, ML13018A103, ML13018A107, ML13018A110, ML13022A138, ML13023A109
MONTHYEAR2012-12-05 [Table View]

ML13018A110

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6.3.4 Time-Dependency

Conclusion:

SUMMARY

SUMMARY

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