L-2025-004, Refueling Outage SL2-28 Low Pressure Turbine Rotor Inspection Results

Refueling Outage SL2-28 Low Pressure Turbine Rotor Inspection Results

ML25064A581
Person / Time
Site:	Saint Lucie
Issue date:	03/04/2025
From:	Mack K Florida Power & Light Co
To:	Office of Nuclear Reactor Regulation, Document Control Desk
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ML25064A580	List: L-2025-004, Refueling Outage SL2-28 Low Pressure Turbine Rotor Inspection Results
References
L-2025-004
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Text

Siemens Energy, Inc. Proprietary (Not Proprietary when separated from Attachment 1) l=PL U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Re:

Florida Power and Light St. Lucie Unit 2 Docket No. 50-389 March 04, 2025 Renewed Facility Operating License NPF-16 L-2025-004 10CFR 50.4 St. Lucie Unit 2 Refueling Outage SL2-28 Low Pressure Turbine Rotor Inspection Results

1. Final Safety Evaluation Regarding Referencing the Siemens Technical Report No.

CT-27332, Revision 2, "Missile Probability Analysis for the Siemens 13.9 M2 Retrofit Design of Low-Pressure Turbine by Siemens AG" (TAC NO. MB 7964) March 30, 2004 (ADAMS Accession No. ML040930616)

2. Florida Power & Light Company (FPL), "Response to NRC Balance-of-Plant Branch Request for Additional Information Regarding Extended Power Uprate License Amendment Request," June 22, 2011 (ADAMS Accession No. ML11188A193)

Florida Power & Light Company (FPL) hereby submits the Low Pressure Rotor Inspection Report conducted during the St. Lucie Nuclear Plant Unit 2 refueling outage SL2-28. The submission fulfills a commitment in Reference 1 for licensees applying Siemens Westinghouse Power Corporation (SWPC) Technical Report CT-27332 in a license amendment request to inform the NRC of the turbine disk inspection results at the end of 100,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> of operation. In Reference 2, FPL applied SWPC Technical Report CT-27332 in its application for the St. Lucie Unit 2 Extended Power Uprate. to this letter provides St. Lucie Unit 2, LPA and LPB Disk Inspection Report. contains information that Siemens Energy, Inc. (SEI) considers to be proprietary in nature. Attachment 2 contains an application for withholding the proprietary information from public disclosure and is supported by an affidavit signed by SEI, the owner of the information. The affidavit sets forth the basis on which the Nuclear Regulatory Commission ("Commission") may withhold the information and addresses with specificity the consideration list in paragraph (b)(4) of Section 2.390 of the Commission's regulations. Accordingly, FPL requests that the information proprietary to SEI be withheld from public disclosure in accordance with 10 CFR 2.390 of the Commission's regulations. Correspondence with respect to the proprietary aspects of the item above or the supporting affidavit should be addressed to Gianluigi Di Giovanni, Senior Vice President Gas Services Business Area, Siemens Energy, Inc. Attachment 3 provides a non-proprietary (redacted) version of the Information provided in Attachment 1.

This letter contains no regulatory commitments.

Florida Power & Light Company 6501 S. Ocean Drive, Jensen Beach, FL 34957

St. Lucie Unit 2 Nuclear Plant Docket No. 50-389 Siemens Energy, Inc. Proprietary (Not proprietary when separated from Attachment 1)

L-2025-004 Page 2 of 2 Should you have any questions regarding this submission, please contact Ms. Maribel Valdez, Fleet Licensing Manager, at 561-904-5164.

Sincerely, Kenneth A. Mack Director, Licensing and Regulatory Compliance Florida Power & Light Company Attachment(3)

Cc:

USNRC Regional Administrator, Region II USNRC Project Manager, St. Lucie Nuclear Plant, Units 1 and 2 USNRC Senior Resident Inspector, St. Lucie Nuclear Plant, Units 1 and 2 Mr. Clark Eldridge, Florida Department of Health

St. Lucie Unit 2 Nuclear Plant Docket No. 50-389 ATTACHMENT 2 L-2025-004 AFFIDAVIT IN SUPPORT OF APPLICATION FOR WITHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE (2 Pages Follow)

STATE OF FLORIDA COUNTY OF ORANGE AFFIDAVIT

1. My name is Gianluigi Di Giovanni. I am SVP Gas Services Business Area of Siemens Energy, Inc. (SEI), and as such I am authorized to execute this Affidavit.

2. I am familiar with the criteria applied by SEI to determine whether certain SEI technical information is proprietary and/or confidential. I am familiar with the policies established by SEI to ensure the proper application of the criteria.

3.

I am familiar with the attached LPA and LPB Disk Inspection report written by SEI for Florida Power & Light Company's (FPL) St. Lucie Unit Number 2 steam turbine located in Stuart, Florida for service event, August 22, 2024 to September 14, 2024 (the "Report").

4. The Report contains information of a proprietary nature and is of the type customarily held in confidence by SEI and not made available to the public.

5. The Report is being made available to the U.S. Nuclear Regulatory Commission in confidence with the request that proprietary information contained in the Report be withheld from public disclosure.

6.

In making this request for withholding proprietary information for which it is the owner, SEI relies upon the exemption from disclosure set forth in the Freedom of Information Act ("FOIA), 5 USC § 552(b)(4) and NRC regulations 10 CFR Part 9.17(a)(4), 2.390(a)(4), and 2.390(b}{1) for "trade secrets and commercial or financial information obtained from a person and privileged or confidential" (Exemption 4).

7. The criteria applied by SEI to determine whether information in the Report should be classified as proprietary and/or confidential is as follows:

a) The Report describes proprietary services for Non-Destructive Examination including proprietary technologies, tooling, and inspection techniques and processes (collectively "Proprietary Information").

b) The Proprietary Information is considered a trade secret of SEI and is held in confidence by SEI.

c) The Proprietary Information is of a type customarily held in confidence by SEI.

d) The Proprietary Information is only known to certain individuals within SEI and only to a limited number of non-competitor third parties on a need-to-know basis that have an obligation to protect the confidentiality of the Proprietary Information under one or more employment agreements, nondisclosure agreements or other contracts.

e) The Proprietary Information is not known to be available in public sources.

f)

The research, engineering, and analytical costs by SE! to develop the Proprietary Information comprised a substantial investment of time and money by SE!.

Siemens Energy, Inc.

Confidential Page 1 of 2

g) The Proprietary Information has commercial value to SEI and provides SEI with a competitive economic advantage over its competitors. If competitors have access to this Proprietary Information, it would harm SEl's ability to differentiate itself in the marketplace, which would likely negatively impact SEl's ability to compete and win business over its competitors. Further, making the Proprietary Information available to competitors without their having been required to undertake a _similar expenditure of resources to develop would unfairly provide competitors with a windfall and deprive SEI of the opportunity to exercise its competitive advantage to seek and adequate return of its larger investment in developing these commercially valuable Proprietary Information.

8.

SEI hereby requests that the Proprietary Information in the Report be considered a trade secret of SEI and given confidential designation under NRC 10 CFR 2.390 (Public inspections, exemptions, requests for withholding).

9. The foregoing statements are true and correct to the best of my knowledge, information, and belief.

01-- 2o2s-1 Di Giovanni Siemens Energy, Inc.

Date

---~D before me this 31_ day of.:::nul hQ 1 1:S)O:;),S

-==.-....::::a.l.a!.==--_:_----------(notary signature)

- ~~'-4--+'-"b---.<...___.,=-"'<="~ f _.._-"'-+_.__..\\::,'-M

__ (print notary name)

NOTARY PUBLIC, STATE OF: Ft.CXZ--l bA MY COMMISSION EXPIRES 0 l 2 1 I z. oz 1, Siemens Energy, Inc.

Confidential Page 2 of 2

. =LNotary Pub lie State of Florlda 1111 My cor;nmlsslon HH 341530

l. *

~oberta Ackerbfoom Expires 3/21/2027

St. Lucie Unit 2 Nuclear Plant Docket No. 50-389 ATTACHMENT 3 NON-PROPRIETARY VERSION ST. LUCIE UNIT 2 LPA AND LPB DISK INSPECTION (55 pages follow)

L-2025-004

SIEMENS GnGrG'(

FLORIDA POWER & LIGHT ST LUCIE Unit Number: 2 Service Event: 2024-08-22 to 2024-09-14 Serial Number: 13A4481-1 Frame Type/Building Blocks: 4448ET3 Job Number: ONIT24004C41 LPA and LPB Disk Inspection Report Written By:

District Service Manager:

CUSTOMER FINAL REPORT 2024 Siemens Energy All Rights Reserved.

- Page 1 of 55 -

Job Number:NDS-ONIT24004C41 Customer: FLORIDA POWER & LIGHT Plant/Unit: ST LUCIE-2 TABLE OF CONTENTS

1. Summary 1.1. Scope Summary 1.2. Unit Information 1.3. Siemens Energy Personnel 1.4. Related Job Numbers

2. Activities and Conclusions 2.1. LP Turbine - LP Rotor Shaft-Disks LPA 2.2. LP Turbine - LP Rotor Shaft - Disks LPB

© 2024 Siemens Energy All Rights Reserved.

- Page 2 of 55 -

Job Nurnber:NDS-ONIT24004C41 Customer: FLORIDA POWER & LIGHT Plant/Unit: ST LUCIE-2

1. Summary 1.1. Scope Summary Siemens Energy Non Destructive Examination (NOE) group was dispatched to Florida Power & Light, ST Lucie Unit 2 to conduct a rotor out Ultrasonic Test (UT) examination of the Low Pressure (LP) A and B (LPA and LPB);

a turbine rotor shrunk-on discs and keyways. The following report describes the components inspected, the NOE methods and procedures used, and the results. UT examination of shrunk-on disc: Procedure PA-1.0145 Revision 1, mechanized UT of shrunk-on disc. The complete disc to shaft shrink-fit area was examined along with the keyways using a combination of pulse echo and pitch catch techniques.

1.2. Unit Information Generator Serial:

81P830 Generator Frame:

Exciter Serial:

76P126 Exciter Frame:

HP Serial:

13A4481-1 HP Frame:

1.3. Siemens Energy Personnel 1.4. Related Job Numbers Main Job Number for this Report Job Number Job Description ONIT24004C41 PSL 2-28 LP Disc Inspection-NOE

2. Activities and Conclusions 2.1. LP Turbine - LP Rotor Shaft-Disks LPA Activity Performed UT on LPA shrunk-on disc turbine end and generator end: discs #1, #2, and #3.

As Found All results were submitted to Siemens Energy Engineering No indications were found.

Action Taken There were no actions taken related to this activity.

© 2024 Siemens Energy All Rights Reserved.

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4-126X275 A201C 4448ET3

Job Number:NDS-ONIT24004C41 Customer: FLORIDA POWER & LIGHT Plant/Unit: ST LUCIE-2 Recommendations Siemens Energy Engineering has recommended disk bore UT reinspection interval for this rotor is 100,000 operating hours.

2.1.1 Datasheet Attachments 2024 Siemens Energy All Rights Reserved.

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2.1.1.1 Gas-and Steam Turbine Plant Florida Power & Light St. Lucie Nuclear Generating Station Unit 2 Job Name, T.-I G.-

No.:

St. Lucie Unit 2 Drehrichtung turning direction Looking from TE to GE Identification No:

Inspection Configuration Component, ld.-No.:

zunehmender Drehwinkel rising turning angle Tower A Tower B Identification Location: Turbine End Coupling Face Zero

Reference:

Corresponds to the rotor serial number id stamp.

Report No: ONIT24004C41 Enclosure Page of LPA Turbine Place : Jensen Beach, Florida Date: September 10th, 2024 Department: SE GS NA SO ST NOE Technician:

Signature:-

Release:

SIEMENS GnGrGY

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This document is subject to the restrictions set forth on the first or title page.

Report No.: ONIT24004C41 Gas-and Steam Turbine Plant Florida Power & Light St. Lucie Nuclear Generating Station Unit 2 Job Name, T.-IG.-No.

St. Lucie Unit 2 UT-Instrument:

Serial #: 538362 Frequency:

Cal Date: 7/08/2024 Cal Due: 7/08/2025 Attenuator: NIA Lfd.

Nr.

No.

Nr.

No.

PrOfkopf / Probe Typ Nennwinkel Type Nominal angle

[OJ Vorlauf Delay

[µs]

Enclosure.

2 Page 1

of Component, ld.-No.

LPA Turbine Reference Block:

Serial#: 3151 24 Pulser Voltage:

Pulse Width V Gerat mit Abschw.

R 100 am K1, Echo 80%

amplification with attenuator r 100 on K1 at 80% hs Einjustierung Calibration in

[dB]

Ausjustierung Calibration out

[dB]

Bemerkung Remarks Place : Jensen Beach, Florida Department: SE GS NA so ST NOE 2

Signature:

Release

_o_a_te_:_s_e_pt_e_m_b_e_r_1_ot_h_, _2_02_4 ___

T<_e_c_h_n_ic_ia_n_s_: ___________________________ _

SIEMENS enerG"'t

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This document is subject to the restrictions set forth on the first or tittle page.

Gas-and Steam Turbine Plant Florida Power & Light St. Lucie Nuclear Generating Station Unit 2 Job Name, T. -IG.-No.

St. Lucie Unit 2 Lfd.

PrOfkopf / Probe Nr.

Nr.

Typ Nennwinkel no.

No.

Type Nominal angle

[

0

]

Vorlauf Delay

[µs]

Report No.: ONIT24004C41 Enclosure.

2 Page 2

of 2

Component, ld.-No.

LPA Turbine V Gerat mit Abschw.

R 100 am K1, Echo 80%

amplification with attenuator r 100 on K1 at 80% hs Einj ustierung Calibration in

[dB]

Ausjustierung Calibration out

[dB]

Bemerkung Remarks Place : Jensen Beach, Florida Department: SE GS NA so ST NOE Signature:

Release

_o_a_t_e_:_s_e_p_te_m_b_e_r_1_o_th...,_2_0_24 ___ T_e_c_h_n_ic_ia_n_s_:_..._ __............... ____________ _

SIEMENS GnGrG"/

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This document is subject to the restrictions set forth on the first or tittle page.

SIEMENS GnGrG'(

Ref. (Department/Year/Serial No.)

Inspection Report Subject/Title Jensen Beach, Florida 9/10/2024 Nodestructive Examination of Florida Power & Light.

St. Lucie Nuclear Generating Station Unit 2 Project Project no.

ONIT24003C4 l Handling Instructions I

Proj.-Code St.Lucie Unit 2 LPA Turbine I

Contents Code Place Date Department Tel ilill i nature SE GS NA SO ST NOE Signature for Release by Dept. Con-cerned Signature for External Release (Not Required for Approval Documents)

Pages of Text 3

Enlosures During the major inspection of the above turbine the components listed in the following were subjected to non-destructive tests. Any deviations result from a change of surface conditions, a change of accessibility or from other changes requested by the customer or by Siemens Energy Services.

............................ *************************************~

Date of testing:

September 10th, 2024 Date of initial startup with Siemens Turbines:

................. i 3/14/2011 106,990 Operating hours since last overhaul:

• • • +*********

... ~;~**********

• • • • • • • • • • • • • 1 r ***startSt'oiaf""

....... )

1 ~--~*~;~*:***~ 1 H~~

.. *1

'. --~i:~~::~i:n*ce.. iast *overha.ui=**:::::::::::::::::::::::::::::::.. :::::::::::::::**

__ [*

NIA EventlD: ONIT24004C4l Instruction : all mentioned test results refer exc/usivelv to the tested subjects 8

Distribution (add "f.i.o. ", if only Summary is distributed for infonnation):

Index Vers.

Date Page(s)

Initials for Release Siemens AG

• Energy Service (ES)

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Report No.: ON/T24004C41 Page: 1 of 3 Instruction Procedure On September 11, 2024, an ultrasonic inspection of the shrunk-on disks was completed on the LPA turbine rotor for Florida Power & Light at St. Lucie Nuclear Generating Station on Unit 2.

The disks were inspected by mechanized UT inspection according to specification PA-1.0145_1ndex 1.

In general, the sensitivity in all test areas was better than Inspection Results There were no reportable indications detected in the hub bore and keyways.

Turbine End Generator End Disk 1 No Indications Disk 1 No Indications Disk 2 No Indications Disk 2 No Indications Disk 3 No Indications Disk 3 No Indications Inspection Procedure Prior to the inspection the geometrical data of the disks were transferred to a computer. Using 30 CAD software the UT parameters were calculated for each disk. The coverage of the hub bore is controlled by ray tracing system.

Senc,fel searc;h unit Search -

units*

Figure 1: Test zones SIEMENS GnGrGY

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Report No.: ONIT24004C41 Page: 2 of 3 Instruction Depending on the width of the disk the hub bore of the disk is subdivided into -

nspection zones (see enclosure 3 to 8).

These zones were inspected step by step using Figure 2: Inspection techniques

~,

• 11me-oUtight dlffreotfon he test equipment was set up on a support in front of the rotor. While turning the rotor with a constant speed of about 0.5 rpm the probes were coupled to the disk surface b a la er of demineralized water. Lookin from GE to TE each zone was ins ected from 0° to 360° For the UT inspection the erial #538362 was used. The UT si nals were dis la ed on a screen

~hile scanning the test zones all data were stored on the inspection computer and an external hard drive.

The 0°-position of the UT probe corresponds to the stamped identification number of the rotor serial number.

With this each indication and therefore each reflector can be identified to a definite axial and circumferencial position at the shrink-fit area.

SIEMENS GnGrG"'(

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Report No.: ONIT24004C41 Page: 3 of 3 Instruction Results illliiiiilf bore of the disks and the keyways no indications were recorded by _

In general, the test sensitivity of the UT inspection was better than The material-technological assessment respectively the residual life calculation is given by Siemens AG, E F PR SU AM EN F1.

Enclosures : : : : : : : :

Configuration of inspection UT probes general review of disk 1GE general review of disk 1 TE general review of disk 2GE general review of disk 2TE general review of disk 3G E general review of disk 3TE SI MENS GnGrG'I

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-I G.-No.:

Radscheibe / disk rs1-del SIEMENS enerGY St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

Datenfile / data file rs1-del Outlet Side (OS)

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LPA Turbine, BerichVReport ONIT24004C41 Anlage/Enc/.

Seite/Page 3

von/of 3

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Radscheibe / disk rs1-del Technik x (Refl.)

x' (PK)

Zeich x (PK)

Y (PK) z (PK)

Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No. :

Datenfile / data file rs1-del Skew I Schallweg R(Refl.)

Wangen-stg.

LPA Turbine, PrOfzone von... bis Phi Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 Abteilung, Prufer: NOE ST Unterschrift:

SIEMENS GnGrGY Department, lnsp.:

Signature:

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Vorlauf vG PrOfdatum Freigabe:

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Radscheibe / disk rs1-del Technik x (Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGY x (PK)

Abteilung, Pruter:

Department, lnsp z (PK)

Prufparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs1-del Skew I Schallweg R(Refl.)

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Wangen-stg.

Radscheib PrOfzone von... bis Unterschrift:

Signature:

'skwide PrOfkopf BerichVReport ONIT24004C41 Anlage!Encl.

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T-IG.-No.:

Radscheibe / disk rs1-der SIEMENS Gn GrGY St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

Datenfile / data file rs1-der

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LPA Turbine, BerichVReport ONIT24004C41 Anlage!Encl.

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No.:

St Lucie Unit 2, 13A4481-1 Radscheibe / disk rs1-der Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS Gn GrGY Zeicho. -

x (PK) y (PK) z(PK)

Abteilung, Pri.ifer:

Department, lnsp.

Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs1-der Skew I Schallweg R(Refl.)

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PrOfzone von... bis Unterschrift:

Signature:

PrOfkopf Bericht/Report ONIT24004C41 Anlage/Encl.

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Radscheibe / disk rs1-der Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGY x (PK) z (PK)

Abteilu n g, P rufer:

Department, lnsp.

Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs1-der Skew I Schallweg R(Refl.)

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Signature:

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-I G.-No.:

Radscheibe / disk rs2-del SIEMENS Gn GrGY St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

Datenfile / data file rs2-del Outlet Side (OS)

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St. Lucie Unit 2, 13A4481-1 Radscheibe / disk rs2-del Zeichn

lsf_,

Priifparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

Datenfile / data fife rs2-del LPA Turbine, Bericht/Report ONIT24004C41 Anlage/Enc/.

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Technik I x (Refl.)

x' (PK) x (PK) y(PK) z (PK) I Skew I Schallweg I R(Refl.)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS Gn GrGY Abteilung, PrOfer:

Department, lnsp

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Unterschrift:

Freigabe:

Signature:

Release:

1 I I I I I I I I

I

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Radscheibe / disk rs2-del Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGY x (PK) z(PK)

Abteilung, PrOfer:

Department, lnsp.

Prufparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs2-del Skew I Schallweg R(Refl.)

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PrOfzone von... bis Unterschrift:

Signature:

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-!G.-No.:

Radscheibe / disk rs2-der SIEMENS Gn GrGY St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs2-der

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Radscheibenbreite / disk wide Bericht/Report ONIT24004C41 Anlage!Encl.

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-/G.-No. :

St. Lucie Unit 2, 13A4481-1 Radscheibe / disk rs2-der Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGY x (PK)

Abteilung, PrOfer:

Department, Ins, z(PK)

Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs2-der Skew I Schallweg R(Refl.)

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vG PrOfdatum Freigabe:

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Radscheibe / disk rs2-der Technik x (Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGY x (PK) z(PK)

Abteilung, PrOfer:

Department, lnsp.

Priifparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs2-der Skew I Schallweg R(Refl.)

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Signature:

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T-/G.-No.:

Radscheibe / disk rs3-del SIEMENS GnGrGY St. Lucie Unit 2, 13A4481-1 Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs3-del

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Radscheibe / disk rs3-del St. Lucie Unit 2, 13A4481-1 Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

Datenfile / data file rs3-del LPA Turbine, BerichVReport ONIT24004C41 Anlage!Encl.

7 Seite/Page 2

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II *............................

• . :. ~. -...

I I I I

I I

I I

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGY Unterschrift:

Freigabe:

Signature:

Release:

- Page 25 of 55 -

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No.:

St Lucie Unit 2, 13A4481-1 Radscheibe / disk rs3-del Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGV x(PK) z(PK)

Prufparameter Test Parameter Komponente, Kenn-Nr.:

LPA Turbine, Component, ld.-No.:

Datenfile / data file rs3-del Skew I Schallweg R(Refl.)

- Page 26 of 55 -

Wangen-stg.

Radschei PrOfzone von... bis Unterschrift:

Signature:

wide PrOfkopf BerichVReport ONIT24004C41 Anlage!Encl.

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Release:

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Prufparameter Test Parameter Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No. :

St. Lucie Unit 2, 13A4481-1 Komponente, Kenn-Nr.:

Component, ld.-No.:

LPA Turbine, Radscheibe / disk rs3-der Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS GnGrGY Datenfile / data file rs3-der Abteilung, Pruter: NDE ST Department, lnsp. : Edwards Inlet Side (IS)

- Page 27 of 55 -

Radscheib Unterschrift:

Signature:

• kwide Bericht/Report ONIT24004C41 Anlage!Encl.

Seite/Page Freigabe:

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St. Lucie Unit 2, 13A4481-1 Komponente, Kenn-Nr.:

Component, ld.-No.:

LPA Turbine, Radscheibe / disk rs3-der Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS Gn GrGY x (PK) z (PK)

Datenfile / data file rs3-der Skew I Schallweg R(Refl.)

Wangen-stg.

Radscheibenbreite / disk wide Prufzone von... bis Prufkopf Vorlauf vG Abteilung, Prufer: NDE ST Unterschrift:

Freigabe:

Department, lnsp.. _

Signature:

Release:

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Prufdatum

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Prufparameter Test Parameter Bericht!Report ONIT24004C41 Anlage/Encl.

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Component, ld.-No.:

LPA Turbine, Radscheibe / disk rs3-der Technik x (Reff.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/10/2024 SIEMENS Gn GrGY Zeichnunwnr. / drawing no.

Datenfile I data file rs3-der x {PK) y(PK) z (PK)

Skew I Schallweg R(Refl.)

Wangen-stg.

PrOfzone von... bis PrOfkopf Vorlauf vG Abteilung, PrOfer: NDE ST Unterschrift:

Freigabe:

Department, lnsp. -

Signature:

Release:

- Page 29 of 55 -

PrOfdatum

Job Number:NDS-ONIT24004C41 Customer: FLORIDA POWER & LIGHT Plant/Unit: ST LUCIE-2 2.2. LP Turbine - LP Rotor Shaft - Disks LPB Activity Performed UT examination on LPB shrunk-on disc turbine end and generator end: discs #1, #2, and #3.

As Found All results were submitted to Siemens Energy Engineering in PCM 1-24-012381.

No indications were found.

Recommendations Siemens Energy Engineering has recommended disk bore UT reinspection interval for this rotor is 100,000 operating hours.

2.2.1 Datasheet Attachments

© 2024 Siemens Energy All Rights Reserved.

- Page 30 of 55 -

2.2.1.1 Gas-and Steam Turbine Plant Florida Power & Light St. Lucie Nuclear Generating Station Unit 2 Job Name, T.-IG.-

No.:

St. Lucie Unit 2 Drehrichtung turning direction Looking from GE to TE Identification No:

Inspection Configuration Component, ld.-No.:

zunehmender Drehwinkel rising turning angle Tower A TowerB Identification Location: Generator End Coupling Face Zero

Reference:

Corresponds to the rotor serial number id stamp.

Place : J B

h Fl

'd ensen eac,

on a Report No: ONIT24004C41 Enclosure Page of LPB Turbine Date : September 12th, 2024 Department: SE GS NA SO ST NOE Technician:

Signature :-

Release:

SIEMENS GnGrGY

- Page 31 of 55 -

Gas-and Steam Turbine Plant Florida Power & Light St. Lucie Nuclear Generating Station Unit 2 Report No.: ONIT24004C41 Enclosure.

2 Page 1

of 2

Job Name, T.-IG.-No.

St. Lucie Unit 2 Component, ld.-No.

LPB Turbine UT-Instrument Serial #: 538362 Frequency Attenuator: NIA Lfd.

Nr.

No.

Nr.

No.

Cal Date: 7/08/2024 Cal Due: 7/08/2025 PrOfkopf / Probe Typ Nennwinkel Type Nominal angle

[OJ Vorlauf Delay

[µs]

Reference Block.

Serial #: 3151 24 Pulser Voltage:

Pulse Width:

V Gerat mit Abschw.

R 100 am K1, Echo 80%

amplification with attenuator r 100 on K1 at 80% hs Einjustierung Calibration in

[dB)

Ausjustierung Calibration out

[dB)

Department: SE GS NA SO ST NOE Bemerkung Remarks Place : Jensen Beach, Florida

_D_a_te_: _s_e_p_t_em_be_r_1_2_th_,_2_0_24 ___

r,_e_c_hn_,_*c_ia_n_s: ______._*

iiiiiiiiiiiiiiiiiii,. ------R-e-/e_a_se ____

SIEMENS GnGrGY

- Page 32 of 55 -

Gas-and Steam Turbine Plant Florida Power & Light St. Lucie Nuclear Generating Station Unit 2 Job Name, T.-IG.-No.

St. Lucie Unit 2 Lfd.

Prufkopf / Probe Nr.

Nr.

Typ Nennwinkel no.

No.

Type Nominal angle

[OJ Vorlauf Delay

[µs]

Report No.: ONIT24004C41 Enclosure.

2 Page 2

of 2

Component, ld.-No.

LPB Turbine V Gerat mit Abschw.

Bemerkung R 100 am K1, Echo 80%

amplification with attenuator Remarks r 100 on K1 at 80% hs Einjustierung Ausjustierung Calibration in Calibration out

[dB]

[dB]

Place : Jensen Beach, Florida Department: SE GS NA so ST NOE Signature:

Release

_o_a_te_ : _s_e_p_t_em_ be_r_1_2_th_._2_0_24 ___

r_e_c_h_m_*c_ia_n_s_

SIEMENS enerG'/

- Page 33 of 55 -

SIEMENS GnGrGY Ref (Department/Year/Serial No.)

Inspection Report Subject/Title Jensen Beach, Florida 9/12/2024 Place Date Nodestructive Examination of Florida Power & Light.

St. Lucie Nuclear Generating Station Unit 2 Department Tel i nature SE GS NA SOST NOE Project Project no.

ONIT24004C4 l Handling Instructions I

Proj.-Code St.Lucie Unit 2 LPB Turbine I

Contents Code Signature for Release by Dept. Con-cerned Signature for External Release (Not Required for Approval Documents)

Pages of Text 3

Enlosures During the major inspection of the above turbine the components listed in the following were subjected to non-destructive tests. Any deviations result from a change of surface conditions, a change of accessibility or from other changes requested by the customer or by Siemens Energy Services.

Date of testing:

12th, 2024

~.....................................

Date of initial startup with Siemens Turbines:

I 3/14/2011 Operating hours, total:

106,990 r Operating hours since last overhaul:

N/A r *.

--~-~-*; *~Id, 11 H-~~.. ** 1

[.. Starts total:

,.. Starts siricEdast over-~~~-1-:... ::::........ :...................... J....................... NIA

...... ::::J Event ID: ONIT24004C4 l nstruction : all mentioned test results refer exc/usivelv to the tested subjects 8

Distribution (add "f.i.o. ", if only Summary is distributed for infonnation):

Index Vers.

Date Page(s)

Initials for Release Siemens AG. Energy Service (ES)

- Page 34 of 55 -

Report No.: ON/T24004C41 Page: 1 of 3 Instruction Procedure On September 12, 2024, an UT inspection of the shrunk-on disks was completed on the LPB turbine rotor for Florida Power & Light at St. Lucie Nuclear Generating Station on Unit 2.

The disks were inspected by In general, the sensitivity in all test areas was better than Inspection Results There were no reportable indications detected in the hub bore and keyways.

Turbine End Generator End Disk 1 No Indications Disk 1 No Indications Disk 2 No Indications Disk 2 No Indications Disk 3 No Indications Disk 3 No Indications Inspection Procedure Prior to the inspection the geometrical data of the disks were transferred to a computer. Using 30 CAD ameters were calculated for each disk. The coverage of the hub bore is controlled by

~ender s.ear<;h unit s*earch ---.....

units Figure 1: Test zones SIEMENS GnGfG' f

- Page 35 of 55 -

Report No.: ONIT24004C41 Instruction llllllllillllllf of the disk the hub bore of the disk is These zones were inspected step by step using Figure 2: Inspection techniques SIEMENS GnGf G "r

- Page 36 of 55 -

Page: 2 of 3 For confidential customer use only

Report No.: ONIT24004C41 Instruction Results Enclosures : : : : : : : :

Configuration of inspection UT probes general review of disk 1GE general review of disk 1 TE general review of disk 2GE general review of disk 2TE general review of disk 3G E general review of disk 3TE SIEMENS GnGf G Y

- Page 37 of 55 -

Page: 3 of 3 For confidential customer use only

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T-IG.-No.:

Radscheibe / disk rs1-del SIEMENS GnGrGY St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Datenfile / data file rs1-del

- Page 38 of 55 -

Signature:

BerichVReport ONIT24004C41 Anlage/Enc/.

Seite/Page 3

van/of 3

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No. :

St. Lucie Unit 2, 13A4481-1 Radscheibe / disk Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGY Zeichnunqsnr. / drawinq no.

x(PK) y (PK)

Abteilung, Prufer; Department, Ins.

z(PK)

Prufparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Datenfile / data file Skew I Schallweg R(Refl.)

- Page 39 of 55 -

Wangen-stg.

Radscheibenbreite / disk wide Priifzone von... bis Unterschrift:

Signature:

Phi Prufkopf Bericht/Report ONIT24004C41 Anlage/Encl.

3 Seite/Page 2

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T-/G.-No.:

St. Lucie Unit 2, 13A4481-1 Technik x (Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGY x (PK) y(PK) z (PK)

Abteilung, PrOfer:

Department, lnsp.

Prufparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Skew I Schallweg R(Refl.)

- Page 40 of 55 -

Wangen-stg.

PrOfzone von... bis Unterschrift:

Signature:

Phi PrOfkopf Bericht/Reporl ONIT24004C41 Anlage/Encl.

3 Seite/Page 3

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-IG.-No.:

SIEMENS enerGY St. Lucie Unit 2, 13A4481-1 Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Inlet Side (IS)

Signature:

- Page 41 of 55 -

Bericht/Report ONIT24004C41 Anlage/Enc/.

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS Gn GrGY Abteilung, Prufer:

Department, lnsp Priifparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Unterschrift:

Signature:

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Bericht/Report ONIT24004C41 Anlage!Encl.

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Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Komponente, Kenn-Nr.:

Component, ld.-No.:

LPB Turbine, Technik x (Refl.)

x' (PK) x (PK) y (PK) z (PK)

Skew Schallweg R(Refl.)

Wa5~g:n-

~~~~~b~;

Phi PrOfkopf Vorlauf vG PrOfdaturn technique x (indic.)

x' (probe) x (probe) y (probe) z (probe)

Skew sord. rhath R (indic)

Contour

f. zone/

Phi probe no PJ~be gain test date Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGV Abteilung, PrOfer:

Department, lnsp.

- Page 43 of 55 -

Unterschrift:

Signature:

Freigabe:

Release:

I I

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 I Radschei Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGY Abteilung, Pruter: NOE ST Department, lnsp Priifparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Unterschrift:

Signature:

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Seite/Page Freigabe:

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St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

LPB Turbine, Bericht/Report ONIT24004C41 Anlage!Encl.

5 Seite/Page 2

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111111-**11111111-* 111--11*-**

- I... II* 11a*-

. ~.

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGY Abteilung, PrOfer:

Department, lnsp

- Page 45 of 55 -

Unterschrift:

Freigabe:

Signature:

Release:

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-IG.-No. :

St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

LPB Turbine, wide BerichVReport ONIT24004C41 Anlage/Encl.

5 Seite/Page 3

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Technik x (Refl.)

x' (PK) x (PK) y (PK) z (PK)

Skew Schallweg R(Refl.)

Was~rn-

~~~~~b7!

Phi PrOfkopf Vorlauf vG PrOfdatum Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS Gn GrGY

- Page 46 of 55 -

Unterschrift:

Freigabe:

Signature:

Release:

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T-IG.-No.:

SIEMENS GnGrGY St. Lucie Unit 2, 13A4481-1 Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No. :

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LPB Turbine, Bericht/Report ONIT24004C41 Anlage/Enc/.

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St. Lucie Unit 2, 13A4481-1 Priifparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

LPB Turbine, I Radschei de Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS enerGY x (PK)

Y (PK) z (PK)

Abteilung, Prufer:

Department, lnsp.

Skew I Schallweg R(Refl.)

- Page 48 of 55 -

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Prufzone von... bis Unterschrift:

Signature:

Phi Prufkopf Bericht/Report ONIT24004C41 Anlage/Encl.

6 Seite/Page 2

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Vorlauf probe vG Freigabe:

Release:

Prufdatum

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Daascne1oe, a 1 Zeichnunasnr / drawing no.

Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

I Datenfi!e I data file

~

Bericht/Report ONIT24004C41 Anlage/Encl.

6 Seite/Page 3

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Technik x (Refl.)

x' (PK) x (PK) y (PK) z (PK)

Skew Schallweg R(Refl.)

Was~rn-

~~~~~b~;

Phi PrOfkopf Vorlauf vG PrGfdatum I

technique x (indic.)

x' (probe) x (probe) y (probe) z (probe)

Skew soy;:ar:th R (indic.)

Contour fri?n~~to Phi probe no.

PJ~~e gain test date Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGY Abteilung, PrGfer:

Department, lnsp.

- Page 49 of 55 -

~

Unterschrift:

Freigabe:

Signature:

Release:

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

Job Name, T.-IG.-No. :

SIEMENS GnGrGY St. Lucie Unit 2, 13A4481-1 Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

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LPB Turbine, BerichVReport ONIT24004C41 Anlage!Encl.

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-/G.-No.:

St. Lucie Unit 2, 13A4481-1 Priifparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

LPB Turbine, Bericht/Report ONIT24004C41 Anlage!Encl.

7 Seite!Page 2

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Technik x (Refl.)

x' (PK) x (PK) y (PK) z (PK)

Skew Schallweg R(Refl.)

Was~g~n-

~~~~~b7; Phi Prufkopf Vorlauf vG Prufdatum technique x (indic.)

x' (probe) x (probe) y (probe) z (probe)

Skew soy;tihath R (indic.)

Contour frg?r,n~to Phi probe no.

PJ~~~

gain test date I

I I L Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGY Abteilung, Prufer:

Department, lnsp.

Unterschrift:

Signature:

- Page 51 of 55 -

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Release:

Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-IG.-Nr.:

Job Name, T.-IG.-No.:

St. Lucie Unit 2, 13A4481-1 Technik x(Refl.)

x' (PK)

Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS Gn GrGY x (PK)

Y (PK) z(PK)

Abteilung, Pruter:

Department, lnsp.

Pri.ifparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Skew I Schallweg R(Refl.)

- Page 52 of 55 -

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SIEMENS GnGrGV St. Lucie Unit 2, 13A4481-1 Prufparameter Test Parameter Komponente, Kenn-Nr.:

Component, ld.-No.:

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LPB Turbine, Bericht/Reporl ONIT24004C41 Anlage/Encl.

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Gas-und Dampfturbinenanlage Gas-and Steam Turbine Plant Kennwort, T.-/G.-Nr.:

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St Lucie Unit 2, 13A4481-1 Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS Gn GrGY Prufparameter Test Parameter Komponente, Kenn-Nr.:

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Unterschrift:

Signature:

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Job Name, T.-/G.-No. :

St. Lucie Unit 2, 13A4481-1 Ort, Datum: Port St. Lucie, FL Place, Date: 09/12/2024 SIEMENS GnGrGY Abteilung, PrOfer:

Department, lnsp Priifparameter Test Parameter Komponente, Kenn-Nr.:

LPB Turbine, Component, ld.-No.:

Unterschrift:

Signature:

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