ML20195C279

From kanterella
Jump to navigation Jump to search
BWR Feedwater Nozzle Inservice Insp Summary Rept for GGNS, NUREG-0619-00006
ML20195C279
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 11/05/1998
From: Burton E
ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20195C271 List:
References
NUREG-0619, NUREG-0619-0000, NUREG-0619-00006, NUREG-619, NUREG-619-6, NUDOCS 9811170068
Download: ML20195C279 (10)


Text

- _ . _ . _ __

l

' l

l. ,

BWR FEEDWATER NOZZLE INSERVICE INSPECTION

SUMMARY

REPORT FOR GRAND GULF NUCLEAR STATION COMMERCIAL OPERATING DATE: JULY 1,1985 1

REPORT NUMBER: NUREG-0619-00006

REFERENCE:

NUREG-0619 L I OWNER / OPERATOR ,

1 I

ENTERGY OPERATIONS, INC.

ECHELON ONE  !

P. O. BOX 31995 i JACKSON,MS. 39286-1995 i i

I l

9811170068 981103 PDR 0 ADOCK 05000416 PDR l.

REPORT NUMBER: NUREO-0619-00006 l

4 PEFERENCE: NUREG-0619 l i 1 l

BWR FEEDWATER NOZZLE INSERVICE INSPECTION

SUMMARY

REPORT i

FOR i l

GRAND GULF NUCLEAR STATION l

COMMERCIAL OPERATING DATE: JULY 1,1985 l l OWNER / OPERATOR j- ENTERGY OPERATIONS, INC.

1 ECHELON ONE l P. O. BOX 31995 JACKSON,MS. 39286-1995

Prepared By Reviewed By Approved By 9A.,s3 G&m -

- [80lw, DOCUMENT COMPLETION DATE I ll S '

9%

(

(.

o REPORT NUMBER NUREG-0619-00006 According to NU' REG-0619, a detailed report must be submitted to the Nuclear Reg statory Commission discussing the inspections performed on the Feedwater Nozzle Blend Radii and Bore Regicns (Inner Radius) and Nozzle-to-Safe-End Welds. Program Plan M-489.1, Inservice Inspection Program, is in compliance with the requirements of Table 2 of NUREG-0619, which require augmented volumetric examinations of these areas. This report summarizes the inspections performed since the previous report through RFO9.

The volumetric exams were performed by Framatome Technologies under contract to Entergy Operations, Inc. The data reports for all examinations are available for review upon request.

To provide the Nuclear Regulatory Commission with the requested information, this report is being presented in the following format. Each item listed in Paragraph 4.4.3.l(2) of NUREG-

. 0619 is addressed sepsrately.

a. Startup/ Shutdown Cycles l
1. Total number ofcycles at Grand Gulf: 111; total includes 46 scrams,65 heatups and their respective cooldowns.
2. Total number of cycles since the previous volumetric examinations on the bler.d radii: 8; total includes 5 scrams,3 heatups and their respective cooldowns.
3. Total number of cycles since the previous surface examinations on the blend radii: 111; tocal includes 46 scrams,65 heatups and their respective cooldowns.
4. Total number of cycles since the previous volumetric examinations on the nozzle-to-safe-end welds: 8; total includes 5 scrams,3 Leatups and their respective cooldowns.
5. Total number of cycles since the previous surface examinations on the nozzle-to-safe-end welds:

N4A and N4B: 55; total includes 25 scrams,30 heatups and their respective cooldowns.

N4C and N4D: 47; total includes 20 scrams,27 heatups and their respective cooldowns.

N4E and N4F: 24; total includes 10 scrams.14 heatups and their respective cooldowns.

b. Summary of Methods Used and Results of Previous Inspections The volumetric exams performed during RFO9 were the sixth examinations performed in accordance with NUREG-0619 since the prese vice examinations. During RFO9, volumetric exams were performed on all six (6) of the nozzle blend radii and bore regions (inner radius) and two of the six nozzle-to-safe end welds, N4A and N4B.

Refer to Tables 1 and 2 (attached) for examination method, results, and date examinations were performed.

NUREG 0619-00006 page 1 of 8 l.

c. System Changes and Changes in Operating Procedures

, ,.There ,have not been any system changes or changes to operating procedures that would affect system temprature or flow during this period,

d. Inspection Results During RFO9 volumetric exams were performed on all six feedwater nozzle blend radii, bore regions (inner radii) as well as on two nozzle-to-safe end welds, N4A and N48.

No indications were recorded on the blend radii, bore region, or nozzle-to-safe end welds which required evaluation in accordance with ASME Section XI. l Final analysis of the ultrasonic examination data was performed and found to be acceptable in accordance with GGNS-M-489.2, Program Plan For The Performance of ASME Section XI Examinations.

e. Leakage Monitoring

)

Grand Gulf has not installed any type of on-line leakage monitoring system capable of I detecting leakage through degraded seals on the feedwater spargers.

f. Information Regarding UT Crack-like Indications and Any Subsequent PT indications  ;

No UT crack-like indications were detected, therefore no penetrant testing was required. l i

l l

l l

0 NUREG 0619 00006 page 2 of 8

._7

~ ~

TAlilE I

' Inner Radius Page1of3 -

ID/ EXAM PROCEDURE RESULTS -DATE-AZIMUTH TYPE N4A UT GG21A3802AB No Recordable Indications 09/19n8 i PT GG21 A3809AA (RADIUS & BORE) 2 Areas Of Recordable Indications 04/07/80

@ 30*

UT UT-23-380 ATT. "N ZONE I No Recordable Indications 12/19/80 -

UT UT-23-380 ATT. "B" ZONE 2 No Recordable Indications 12/19/80 UT UT-23-380 ATT. "C" ZONE 3 No Recordable Indications 12/19/80 i UT UT-28 No Recordable Indications 10/20/86-UT UT 23 No Recordable Indications 04/14/89 UT UT-23 No Recordable Indications 05/22/92 UT 83A6042 1 Area Of Recordable Indication 05/06/95 --

.UT QAl 9.60 No Recordable Indications 3 05/05/98 N4B UT GG21A3802AB No Recordable Indications 09/19n8

@90' PT GG21 A3809AA (RADIUS & BORE) No Recordable Indications 04/07/80 UT UT-23-380 ATT. "A" ZONE I No Recordable Indications 12/19/80 UT UT-23-380 ATT. "B" ZONE 2 No Recordable Indications 12/19/80 UT UT-23-380 ATr. "C" ZONE 3 No Recordable Indications 12/19/80 ,

UT UT-28 No Recordable Indications 10/20/86 UT UT-23 No Recordable Indications 04/14/89 UT UT-23 No Recordable Indications 05/22/92 UT 83A604 2 Areas Of Recordable Indications 05/06/95 UT QAI 9.60 No Recordable Indications 3 05/06/98 8 The previous exams exhibited non-relevant reflectors generated from geometry and mode conversion (GIN 95/01768). Current techniques (QAI 9 60) uses computer optimized beam paths that produce no reflectors in the absence of flaws, NUREG 0619-00006 page 3 of b

___________-______-_______-_I

~

' TABLE 1 -

Inner Radius Page 2 of 3 .

ID/ EXAM PROCEDURE RESULTS- DATE AZIMUTH

~

TYPE N4C UT GG21 A3802AB - No Recordable Indications 09/19D8 -

@150* PC GG21 A3809AA(RADIUS & BORE) No Recordable Indications 04/07/80 UT UT-23-380 ATT. "A" ZONE I No Recordable Indications 12/19/80 UT UT-23-380 ATT. "B" ZONE 2 No Recordable Indications 12/19/80 UT UT-23-380 ATT. "C" ZONE 3 No Recordable Indications 12/19/80' UT UT-28 No Recordable Indications 10/20/86 UT UT-23 No Recordable Indications 04/14/89 UT UT-23 No Recordable Indications 05/22/92 UT 83A6042 4 Areas Of Recordable Indications 05/06/95-UT QAI 9.60 No Recordable Indications 3 05/06/98 N4D UT GG21A3802AB No Recordable Indications 09/19n8

@210' PT GG21 A3809AA (RADIUS & BORE) No Recordable Indications 04/07/80 UT UT-23-380 ATT. "A" ZONE I No Recordable Indicati9ns 12/19/80 UT UT-23-380 ATT. "B" ZONE 2 No Recordable Indications 12/19/80 UT UT-23-380 ATT. "C" ZONE 3 No Recordable Indications 12/19/80 UT UT-28 No Recordable Indications 10/20/86 UT UT-23 No Recordable Indications 04/14/89 UT UT-23 No Recordeble Indications 05/22/92 UT 83A6042 2 Areas Of Recordable Indications 05/06/95 UT QAl 9.60 No Recordable Indications 3 05-06 3 The previous exams exhibited -relevant reflectors generated hm geometry and mode conversion (GIN 95/01768). Current technigees (QAl 9.60) uses computer optimized beam paths that produce no reflectors in the absence of flaws.

NUREG 0619-00006 page 4 of 8

~ ~

TABLE 1 Inner Radius '

Page 3 of 3 - .

ID/ . EXAM lPROCEDURE RESULTS DATE ,

AZIMUTH TYPE N4E UT GG21A3802AB No Recordable Indications 09/19/78 PT GG21 A3809AA (RADIUS & BORE) No Recordable Indications 04/07/80

@270*

UT UT-23-380 ATT. "A" ZONE 1 No Recordable Indications 12/19/80 UT UT-23-380 ATT. "B" ZONE 2 No Recordable Indications 12/19/80 UT UT-23-380 ATT. "C" ZONE 3 No Recordable Indications 12/19/80 UT UT-28 No Recordable Indications 10/20/86 UT UT-23 No Recordable Indications 04/14/89 UT UT-23 No Recordable Indications 05/20/92 UT 83A6042 No Recordable Indications 05/06/95 UT QAI 9.60 No Recordable Indications 05-06-98 N4F UT GG21A3802AB No Recordable Indications 09/19/78

@330* PT GG2i A3809AA (RADIUS & BORE) No Recordable Indications 04/07/80 UT UT-23-380 ATT. "A" ZONE I No Recordable Indications 12/19/80 UT UT-23-380 ATT. "B" ZONE 2 No Recordable Indications 12/19/80 UT UT-23-380 ATT. "C" ZONE 3 No Recordable Indications 12/19/80 UT UT-28 No Recordable Indications 10/20/86 UT UT-23 No Recordable Indications 04/14/89 UT UT-23 No Recordable Indications 05/20/92 UT 83A6042 No Recordable Indications 05/06/95 UT QAI 9.60 No Recordable Indications 05-05-98 i

NUREG 0619-00006 page 5 of 8

. ~ . . . . - - . - . - - - - . - - - - - - - - - - - - - - - - - - . - = - - -

.n

' ~

TABLE 2 Nozzle-To-Safe End Page1of3 -

.ID/ EXAM PROCEDURE RESULTS DATE-AZIMUTH TYPE N4A PT PT-01-390 No Recordable Indications 01/09/81

@ 30* PT PT-04-390 No Recordable Indications 04/12/83 PT QAP 9.50 ' No Recordable Indications 09/21/86 UT UT-22-380 No Recordable Indications 02/19 & 25/81-UT UT-22-380 1 Recordable Indication 04/12/83 UT UT-51 Non-Relevant /Inside Surface Geometry ' 10/06/86 UT UT-51 Non-Relevant /Inside Surface Geometry 04/12/89 UT GE-UT-209 Non-Relevant /Inside Surface Geometry 05P.1/92 UT QAl 9.22/4 No Recordable Indications 05/08/95 UT 54-151-131-03 No Recordable Indications 05/05/98 PT QAI930 No Recordable Indications 05/05/98

, N4B PT PT-01-390 No Recordable Indications 01/09/81 I

@90* PT PT-04-390 No Recordable Indications 04/12/83 PT QAP 9.50 No Recordable Indications 09/21/86 UT UT-22-380 No Recordable Indications 02/19 & 25/81 UT UT-22-380 3 Recordable Indications 04/12/83 UT UT-51 Non-Relevant /Inside Surface Geometry 10/06/86 UT UT-51 Non-Relevant /Inside Surface Geometry 04/10/89 UT GE-UT-209 Inside Surface Geometry 05P.1/92 UT QAI 9.22/4 No Recordable Indications 05/06/95 UT 54-151-131-00 No Recordable Indications 05/05/98 PT QAI 930 No Recordable Indications 05/06/98 4

NUREG 0619-00006 page 6 of 8

TABLE 2 Nozzle-To-Safe End Page 2 003 ID/ EXAM 'PROCEDUIb ~ RESULTS DATE AZIMUTH TYPE N4C PT PT-01-390 ' No Recordable Indications 01/09/81

@150 PT PT-04-390 No Recordable Indications 04/12/83 UT UT-22-380 3 Recordable Indications 02/19 & 25/81 UT UT-22-380 12 RecordableIndications 04/12/83 UT UT-51 Non-Relevant /Inside Surface Geometry 10/06/86 PT PT-SR No Recordable Indications 03/21/89 UT UT-51 Non-Relevant /Inside Surface Geometry 04/12/89 UT GE-UT-209 Inside Surface Geometry 05/22/92 UT QAI 9.22/4 2 Recordable Indications 05/06/95 N4D PT PT-01-390 No Recordable Indications 01/09/81

@210* PT PT-04-390 No Recordable Indications 04/12/83 UT UT-22-380 No Recordable Indications 2/19 & 25/81 UT UT-22-380 3 Recordable Indications 04/12/83 UT UT-51 Non-Relevant /Inside Surface Geomety 10/09/86 PT PT-SR No Recordable Indications 03/21/89 UT UT-51 Non-Relevant /Inside Surface Geometry 04/07/89 UT GE-UT-290 Non-Relevant /Inside Surface Geometry 05/22/92 UT QAI 9.22/4 No Recordable Indications 05/08/95 t

i NUREG 0619-00006 page 7 of 8

' ~

TABLE 2 ,

Nozzle-To-Safe End Page 3 of 3 IDI EXAM PROCEDURE RESULTS DATE AZIMUTH TYPE N4E PT PT-01-390 i Recordable Indications 01/09/81

@270* PT PT-04-390 No Recordable Indications 04/12/83 UT UT-22-380 No Recordable Indications 02/19 & 25/81

  • UT UT-22-380 6 Recordable Indications 04/12/83 UT UT-51 Non-Relevant /Inside Surface Geometry 10/07/86 UT UT-51 Non-Relevant /Inside Surface Geometry 04/11/89 PT QAI 9.13 No Recordable Indications 05/09/92 UT GE-UT-209 Non-Relevant /Inside Surface Geometry 05/21/92 UT QAl 9.22/4 4 Recordable Indications 05/06/95 N4F PT PT-01-390 No Recordable Indications 01/09/8I

@ 330 PT PT-04-390 No Recordable Indications 04/12/83 i UT UT-22-380 No Recordable Indications 2/19 & 25/81 UT UT-22-380 3 Recordable Indications 04/12/83 i UT UT-5i Non-Relevant /Inside Surface Geometry 10/07/86 UT UT-51 Non-Relevant /Inside Surface Geometry 04/11/89 PT QAl 9.13 No Recordable Indications 05/09/92 i UT GE-UT-209 Non-Relevant /I.D. Surface & Root Geometry 05/22/92 UT QAI 9.22/4 3 Recordable Indications 05/06/95 ,

f i

NUREG 0619-00006 page 8 of 8

- _ . _ _ _ - m _ _ _. u____. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.___ . . . _ _ __ _ . _ _ __s _ _ _ _ . _ _ _ _ . _ _ _ _ _ _ _ _ . _ _