ML19324B790
| ML19324B790 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 10/24/1989 |
| From: | SYSTEM ENERGY RESOURCES, INC. |
| To: | |
| Shared Package | |
| ML19324B788 | List: |
| References | |
| SERI-0619-00002, SERI-619-2, NUDOCS 8911080242 | |
| Download: ML19324B790 (8) | |
Text
l REPORT NUMBER SERI 0619 00002 REF: NUREG 0619 l
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SWR FEE 0 WATER N0ZZLE l
INSERVICE INSPECTION REPORT FOR j
l GRAND SULF NUCLEAR STAfl0N UNIT I COMMERCIAL OPERATING DATE: JULY 1,1988 i
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OWNER l
SYSTEM ENERGY RESOURCES,INC.
R Q DOX TSS PORT SISSON, MS 38150 9
e System f
Energy l
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C911000242 891024 PDR ADOCK 05000416 G
PNV
= -
REPORT NUMBER-83RI-0419-00003 i
In accordance with NUREG-0619 a detailed report must be submitted discussing the inspections performed on the Tecdwater Nossle Blend Radii and Bore Regnons (Inner Radius) and Nostle to Safe End Welds.
Specification SERI-M-489.1 (Inservice Inspection Ten Year Program) is in compliance with the requirements of Table 2 of NUREG-0619 which requires augmented volumetric examinations of these areas.
This report summarises the inspections performed since the previous report through RF03.
The volumetric examinations were performed by General Electric
)
under contract to System Energy Resources Inc. (SERI). In addition, surface examinations were performed on two nossle-to-safe-end welds j
(N4C and N4D) by U.S. Testing Company under contract to SERI. The data reports for all examinations are available for review upon i
request.
In an offort to provide the Nuclear Regulatory Commission with the j
requested information, this report is being presented in the t
following format. Each item listed in Paragraph 4.4.3.1(2) of r
NUREG-0619 is addressed separately.
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Startup/ Shutdown cycles l
1)
Total number of cycles at Grand Gulf 64, total includes f
26 scrams, 38 heatups and their respective cooldowns.
2)
Total number of cycles since the previous volumetric examinations on the blend radiit 8,
total includes 5 scrams, 3 heatups and their respective cooldowns.
l 3)
Total number of cycles since the previous surface i
examinations on the blend radiit 64, total includes 36 f
scrams, 38 heatups and their respective cooldowns, f
4)
Total number of cycles since the previous volumetric J
examinations on the nossle-to-safe-end weldst 8,
total
~
includes 5 scrams, 3
heatups knd their respective cooldowns.
j 5)
Total number of cycles since the previous surface
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examinations on the nossle-to-sofe-end weldst N4A and N4B; 8, total includes 5 scrams, 3 heatups l
and their respective cooldowns.
N4C,N4D,N4E and N4F; 61, total includes 26 scrams, 35 heatups and their respective cooldowns.
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b.
Summary of Methods Used and Results of Previous Inspections During RF03 volumetric examinations were performed on the l
j nossle blend radii and bore regions (inner radius) and the i
i nossle-to-safe-end welds. Surf ace examinations were performed on the outside surface on two nossle-to-safe-end welds (N4C
]
I and N4D).
Refer to tables 1 and 2 (attached) for examination methods and l
dates examinations were performed for each nozzle.
l t
Refer to previous report (SERI-0619-00001) for the methods i
used and results of inspections performed prior to RF03.
l c.
system changes and changes in operating Procedures l
1 The volumetric examinations performed during RF03 were the second examinations performed since the preservice L
examinations. There have not been any system changes or changes to operating procedures that would effect system i
temperature or flow during this time period.
I l
d.
Inspection Resulta j
I RF03, remote volumetric examinations were performed on Durinfxfeedwaternossleblendradiiandboreregicns(inner all a I
radius) and all six feedwater nossle-to-safe end welds.
i No indications were recorded for examinatione on the blend i
radii and bore regions (inner radius) which required j
evaluation in accordance with ASME Section XI.
I Won-relevant indications were recorded on the nossle-to-safe-end welds. These indications were evaluated and determined to l
be caused by:
I.D.
surface geometry, geometry from thermal i
sleeve positioning ridge and root geometry.
P Final analysis' of the ultrasonic examination data was parformed and found to be acceptable in accordance with the General Electric procedure for reviewing and analysing recordable indications (NDE-1) and SERI standard SERI-M489.2.
l j
During RF03 surface examinations were performed on the outside surface of two nozzle-to-safe-end welds (N4C and N4D). The surface examinations resulted in no recordable indications.
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t e.
Isakage Monitoring
[
Grand Gulf has not installed any type of on-line leakage l
monitoring system capable of detecting leakage through degraded seals on the feedwater sparger.
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f.
Information Regarding UT Crack-like Indications and any j
subsequent PT Indications.
No UT crack-like indications were detected, thus no penetrant testing was required.
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ThB&B 1 PASB 1 OF 3
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IM BRDIUS BERN ID/ASINUTB TYFB N
N BEfB UT GG21A3802AB NO RECORDMBI2 INDICATIONS 09/19/78*
N4A PT GG21A3809AA (RADIUS & BORE) 2 AREAS OF RECORDnB M INDICATIONS 04/07/80 9 30*
UT UT-23-380 ATT.
"A" ZONE 1 NO RECORDhBM INDICATIONS 12/19/80 i
UT UT-23-380 ATT.
"B" ZONE 2 NO RECORDABIE INDICATIONS 12/19/80 UT UT-23-3b0 ATT.
"C" ZONE 3 NO RECORDABIE INDICATIONS 12/19/80 4
UT UT-28 NO RECORDMBIE INDICATIONS 10/20/86 l
UT UT-23 NO RECORDhBLE INDICATIONS 04/14/89 l
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UT GG21A3802AB NO RECORDhBIE INDICATIONS 09/19/78 j
j M4B PT GG21A3809AA (RADIUS & BORE)
NO RECORDhBIE INDICATIONS 04/07/80 9 90*
UT UT-23-380 ATT.
"A" ZONE 1 NO RECORDABIE INDICATIONS 12/19/80 l
UT UT-23-380 ATT.
"B" ZONE 2 NO RECORDhB12 INDICATIONS 12/19/80 l
UT UT-23-380 ATT.
"C" ZONE 3 NO RECORDhBIE INDICATIONS 12/19/80
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UT UT-28 NO RECORDhBM INDICATIONS 10/20/96 UT UT-23 NO RECORDhBIE INDICATIONS 04/14/89 i
i UT GG21A3802AB NO RECORDhBI2 INDICATIONS 09/19/78 l
N4C PT GG21A3809AA (RADIUS & BORE)
NO RECORDhBt2 INDICATIONS 04/07/80 9 150*
UT UT-23-360 ATT.
"A" ZONE 1 NO RECORDhBIK INDICATIONS 12/19/80 l
l UT UT-23-380 ATT.
"B" ZONE 2 NO RECORDhBIA INDICATIONS 12/19/80 i
UT UT-23-380 ATT.
"C" ZONE 3 NO RECORDABM INDICATIONS 12/19/80 l
UT UT-28 NO RECO A mu INDICATIONS 10/20/86 j
UT UT-23 NO RECORDhBM INDICATIONS 04/14/89 I
UT GG21A3802AB NO RECORDhBIA INDICATIONS 09/19/78 l
N4D PT GG21A3809AA (RADIUS & BORE)
NO RECORDhBIE INDICATIONS 04/07/80 j
@ 210*
UT UT-23-380 ATT.
"A" ZONE 1 NO RECORDEBIK INDICATIONS 12/19/80 i
UT UT-23-380 ATT.
"B" ZONE 2 NO RECORDhBIE INDICATIONS 12/19/80 I
UT UT-23-380 ATT.
"C" ZONE 3 NO RECORDhBIE INDICATIONS 12/19/80 UT UT-28 NO RECORDABM INDICATIONS 10/20/86 UT UT-23 NO RECORDABM INDICATIONS 04/14/89 UT GG21A3802AB NO RECORDhBIE INDICATIONS 09/19/78
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N4E PT GG21A3809AA (RADIUS & BORE)
NO RECORDhBM INDICATIONS 04/07/80
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@ 270*
UT UT-23-380 ATT.
"A" ZONE 1 NO RECORDhBM INDICATIONS 12/19/SC l
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"B" ZONE 2 NO RECORDhBIE INDICATIONS 12/19/80
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UT UT-23-380 ATT.
"C" ZONE 3 NO RECORDhBM INDICATIONS 12/19/80 l;
UT UT-28 NO RECORtmBM INDICATIONS 10/20/86 UT UT-23 NO RECORDhBM INDICATIONS 04/14/89 l
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