IR 05000528/1990022
| ML17305A892 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/05/1990 |
| From: | Huey F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML17305A891 | List: |
| References | |
| 50-528-90-22, 50-529-90-22, 50-530-90-22, NUDOCS 9006260266 | |
| Download: ML17305A892 (13) | |
Text
0
~
U. S.
NUCLEAR REGULATORY COMMISSION REGION V
Report Nos.
50-528/90-22, 50-529/90-22 and 50-530/90-22 Docket Nos.
50-528, 50-529, 50-530 License Nos.
NPF-41, NPF-51, NPF-74 Licensee:
Arizona Public Service Company Facility Name:
Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2 and
Inspection at:
Pa'lo Verde Site, k'intersburg, Arizona Inspection Conducted:
May 7-18, 1990 Inspector:
C. A.
C ctor Ins ector Approved by:
uey, C ie Engineering Section 455~
ate
>gne e
Ins ection Summar
Ins ection Durin the Period Ma 7-18 1990 Re ort Nos. 50-528/90-22, 5-an-3 9-Areas Ins ected:
A routine unannounced inspection by one regional inspector of t e licensee performance of Inservice Inspection ( ISI) activities at Unit 2, and maintenance and vendor interface programs.
Inspection Procedure Nos. 30703, 62702, 73051, 73052, 73753, 73755 and 92701 were used as guidance for the inspection.
Results:
General Conclusions and S ecific Findin s:
Observed Unit 2 ISI activities appeared to meet program requirements.
The inspector noted concerns with Inservice Inspection (ISI) and Inservice Testing (IST) procedures that contain the following statement,
"The nonconforming process is not required to be initiated when the unacceptable condition can be readily corrected in accordance with 30AC-9ZZ01, l/ork Control."
This statement may result in a lack of engineering review, evaluation and corrective action, for an identified nonconforming condition.
The inspector noted that maintenance work orders do not always reference
~
~
~
the latest vendor instructions.
This will be the subject of a future NRC inspection.
9<30( 2AO26b
'pC>060C F DR AGOCK i):ii:>005~8 I.(
Fbc
Si nificant Safet f1atters:
None Summar of Vio1ation:
Hone 0 en Items Svmmar
There were no new open items identifie e DETAILS 1.
Persons Contacted
- W. Marsh, Director 08M, Nuclear Production
- G. Overbeck, Director, Technical Support
- R. Schaller, Assistant Plant Manager, Unit I
- G. Sowers, Manager, EED
- M. Benac, Manager, El Paso Electric
- T. Bradish, Manager, Compliance
- W. Webster, Superivsor, Technical Support
- R. Henry, Site Representative, SRP
- C. Teeter, Senior Information Coordinator, Part Services H. Maxwell, Technical Engineer
- Denotes those attending the May 11, 1990 exit meeting.
The inspector also held discussions with other licensee and contractor personnel during the course of the inspection.
2.
Maintenance Pro ram 62702)
The inspector observed that the Unit 2 auxiliary feedwater pump AFN-P01 had been painted, and that the orange location paint marks used for placement of the vibration probes for vibration testing were no longer installed.
After reviewing applicable procedures and discussions with licensee personnel, the following was identified.
The licensee did not have a document/procedure that identified the proper locations for the probe location paint marks used in the vibration monitoring program.
Various licensee personnel have installed probe location marks, and in the past they had been found in different locations on the same pump in different units.
An example on this same pump was documented in paragraph 2.d.(2) of NRC inspection report 50-529/89-09.
The licensee's Maintenance Program did not include instructions to ensure that the locations of probe location marks were appropriately documented prior to repainting the equipment.
During the inspection, the licensee identified that the following actions would be taken:
The vibration group will install new orange paint probe location marks on the Unit 2 auxiliary feedwater pump AFN-P01.
This work has been accomplishe (i
The vibration group will take photographs of the installed probe location paint marks on the Unit 2 auxiliary feedwater pump AFN-P01.
These photographs will be used to ensure the orange paint marks on the same pumps in Units I and 3, are installed in the same locations.
If any orange paint marks are not installed in similar locations, they shall be relocated.
Take photographs of the locations of the existing probe location paint marks on other equipment in the vibration monitoring program.
These photographs will be used to:
(I)
Ensure the locations of probe location paint marks on similar equipment are installed in similar locations for all units.
(2)
Reestablish removed or painted over probe location paint marks.
Future vibration monitoring will be performed by dedicated vibration data collection personnel, who will be trained in the proper placement of the probe location paint marks on applicable equipment.
Licensee procedures will be reviewed and revised to ensure proper placement of vibration probe location markers.
Based on the above information, it appears the licensee is implementing appropriate corrective action.
No violations or deviations were identified in the areas reviewed.
3.
Inservice Ins ection - Review of Pro ram 73051 a ~
Pro ram A
royal The latest Inservice Inspection (ISI) program plans for Palo Yerde Units I, 2 and 3, were submitted to NRC/NRR by letters dated August 26, 1985, July 17, 1986, and March ll, 1987, and supplemented by a letter dated August 7, 1987.
The NRR latest review of the ISI programs, was contained in an, October 21, 1987, letter from Mr. E. A. Licitra to Mr. E.
E.
Van Brunt, Jr.
The NRR staff determined that the ISI programs for Units 1,
and 3 were acceptable and, with one exception, the requested relief from certain ASME Code Section XI requirements was granted.
The Unit 2 ISI plan is described in a document entitled, "Inservice Inspection Program Summary Manual, program no. ISI-2, Revision No.
0."
The Unit 2 ISI program review was documented on a cover sheet which indicated the following:
a technical review, Engineering Manager's approval, Authorized Nuclear Inservice Inspector's (ANII)
concurrence, and the Plant Review Board's approva gl
b.
Pro ram Or anization Administrative Procedure No. 73AC-OXI01, Revision 1, entitled,
"ASME Section XI Inservice Inspection," establishes the methods for preparing, controlling, and implementing the ISI program.
This procedure also defines the responsibilities of the persons involved with the finhl evaluation and acceptance of the ISI results.
This inspection information is documented in the "ISI Summary Report".
Administrative Procedure No. 73AC-OEE04, Revision 0, entitled,
"gualification and Certification of NDE Personnel,"
establishes the qualification, training, certification, and recertification of NDE personnel at all levels.
This procedure, is consistent with ASME Section XI and SNT-TC-1A ( 1980 Edition) requirements.
c.
ualit Assurance Pro ram The "Operations guality Assurance Criteria Manual," Criterion 9, addresses requirements for the control of special processes.
The gA program contains provisions to oversee contractor/subcontractor ISI activities.
No violations or deviations were identified in the areas reviewed.
4.
Inservice Ins ection - Review of Procedure 73052 A sam le review of ISI rocedures identified that No violations or deviations were identified in the areas reviewed.
5.
Inservice Ins ection - Observation of Work and Work Activities 73753 p
p the licensee had issued procedure 73TI-9ZZ19, Revision 4, "Visual Examination of Pump and Valve Internal Surfaces",
to incorporate INPO Significant Operating Event Report 86-03,
"Check Valve Failures or Degradation,"
inspection requirements for check valves.
These new check valve inspection instructions appear to be an improvement in the licensee inspection program.
The inspector noted that the procedure contains a weakness in section 8.4.2.1, where it states
"This nonconforming process is not required to be initiated when the unacceptable condition can be readily corrected in accordance with 30AC-9ZZ01, Work Control."
This statement al'lows a non-engineering review to direct an item to Work Control, and a
unacceptable condition may never receive an engineering review, evaluation and corrective action.
This same procedure statement has been identified as a concern in other ISI and Inservice Testing (IST) procedures, and the licensee implementation of this statement will be reviewed during future inspections.
During the inspection, the licensee was conducting the Unit 2 cycle
refueling outage, which is the second refueling outage of the first period of the first ten year ISI interval.
The ISI examinations performed during this inspection, were performed by the licensee staff and contractor personnel supplied by Lambert, MacGill and Thomas, In The inspector.reviewed the qualification and certification records for the ISI examiners, and the equipment certifications.
Available visual (VT), wet magnetic particle (Y>T), ultrasonic (UT), and liquid penetrant (PT) examinations performed on piping, valves and pressurizer manway studs were observed by the inspector.
No violations or deviations were identified in the areas reviewed.
6.
Inservice Ins ection - Data Review and Evaluation'73755 The inspector reviewed all the available NDE ISI data sheets generated this outage, prior to and during this inspection.
No violations or deviations were identified in the areas reviewed.
7.
Followu 92701 During a review of the licensee's valve maintenance activities, the inspector identified the following:
The valve technical manuals, referenced in licensee work orders, are a licensee assembled package, instead of a vendor's valve manual.
The licensee assembled valve technical manuals included the following:
(1)
Bechtel instructions (2)
valve operator vendor instructions (3)
valve vendor instructions (4)
original licensee installation instructions The instructions contained in these licensee assembled manuals (such as P221B-294, N001-1104-128 and 264) are not the latest vendor instructions.
Licensee procedure 81AC-OCCOB, "Control of Vendor Documentation,"
revision 1, specifies controls for the receipt, review, approval, revision and use of vendor documentation.
This Vendor Interface Program procedure di'd not appear to establish time periods for review and implementation of new vendor instructions.
A licensee
"DCC's vendor package late-lists" identified that package no.
A2992 (Anchor-Darling) was going through the licensee review program.
This package contained an Anchor/Darling Valve Company manual entitled "Maintenance Manual for Flexible Vedge Type Gate Valves", vendor number MYi Fkl-I/83-2.5M. It appears that this manual was issued in January of 1983, and is only now being reviewed.
Another Anchor/Darling Valve Company manual, entitled "Maintenance Manual for Swing Check Valves," vendor number MMSCV 2500 I/88, was
I'
found in an engineering section file, but was not available in the licensee's Drawing and Data Control
{DDC) program.
The inspector discussed the above information with the licensee, who identified that they were aware of problems in this area, and were evaluating implementation of a vendor group to improve the vendor interface program.
The subject of vendor interface is discussed in the following NRC documents:
Generic Letter 83-28, dated July 8, 1983 Generic Letter 90-03, dated March 20, 1990 Licensee performance in this area will be reviewed during a future inspection.
No violations or deviations were identified in the areas reviewed.
8.
Exit Meetin 30703 The inspector met with the licensee management representatives denoted in paragraph 1,
on Nay 11, 1990.
The scope of the, inspection and the inspector's findings up to the time of the meeting were discussed.
At this meeting the inspector identified that he had obtained some information that would be reviewed later in the region, with the findings documented in this report.
The available information was reviewed and the findings included in paragraphs 4 and 7 of this repor C
~