ML20236B399
| ML20236B399 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 07/16/1987 |
| From: | Jape F, Lenahan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20236B376 | List: |
| References | |
| 50-321-87-14, 50-366-87-14, NUDOCS 8707290101 | |
| Download: ML20236B399 (5) | |
See also: IR 05000321/1987014
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGION il
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101 MARIETTA STREET, N.W., SUITE 2900
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ATLANTA, GEORGIA 30323
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Report Nos.:
50-321/87-14 and 50-366/87-14
Licensee: Georgia Power Company
P. O. Box 4545
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Atlanta, GA 30302
Docket Nos.:
50-321 and 50-366
License Nos.: DPR-57 and NPF-5
Facility Name: Hatch
Inspection Conducted: June 29 - Jul
2, 1987
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Inspector:
J. J. Lenahan
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Date Signed
Accompanying Personnel:
S. Sparks
Approved by:
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/a F. Jape, Se'ction Chief
Date Signed
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Engineering Programs Branch
Division of Reactor Safety
SUMMARY
Scope:
This routine, unannounced inspection was in the areas of followup on
licensee action on previous inspection findings and the snubber surveillance
program.
Results:
One violation was identified - Failure to Have Written Procedures to
Cover Inspection of Mechanical Snubbers Af ter Severe Dynamic Event
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paragraph 5.a.
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REPORT DETAILS
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1.
Persons Contacted
Licensee Employees
- H. C. Nix, Plant Manager
- S. J. Bethay, Nuclear Safety and Compliance Supervisor
- G. M. Creighton, Compliance Specialist
- P. E. Fornel, Manager, Maintenance
- A. Fraser, Site QA Manager
G. A. Goode, Manager, Engineering Support Group
M. H. Gouge, Manager, Outage Support Group
- B. Keck, Acting Engineering Manager
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H. S. Koski, Snubber Engineer
NRC Resident Inspectors
- P. Holmes-Ray
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- J. Menning
- Attended exit interview
2.
Exit Interview
The inspection scope and findings were summarized on July 2,1987, with
those persons indicated in paragraph I above.
The inspectors described
the areas inspected and discussed in detail the inspection findings.
No
dissenting comments were received from the licensee.
The following new
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item was identified during this inspection.
Violation Item 321, 366/87-14-01, Failure to Have Written Procedures
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to Cover Inspection of Mechanical Snubbers After Severe Dynamic
Event, paragraph Sa,
The licensee did not identify as proprietary any of the materials provided
to or reviewed by the inspector during this inspection.
3.
Licensee Action on Previous Enforcement Matters
(0 pen) Unresolved Item 321, 366/84-05-02, Timely Closecut of Design Change
Requests.
Review of the status of Design Change Requests (DCR) during .
previous inspections disclosed that the DCRs were not being closed out in
a timely fashion after completion of the actual physical modifications to
the plant.
Example of items that need to be resolved prior to DCR
closeout are: verification by knowledgeable engineers that as-built
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drawings have been completed, that all affected procedures have been
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revised, that NCRs and field deviation reports have been resolved, and
that revisions to various other documents (e.g. equipment indexes) have
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been completed. As a result of the . inspector's concerns, the licensee
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formed a task force to address DCR closeout.
The task force, named the
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DCR closeout group, reviewed 486 DCRs. Of this number, 292 were closed or
voided
152 were determined to need additional implementation, and the
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status of 42 could not be determined.
The task force was disbanded in
June 1985.
The inspectors discussed the current status of DCR closeout
with licensee engineers.
These discussions disclosed that a total of 1043
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DCRs were currently open.
Of this number, 452 were ready to be closed,
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182 were to be voided, 358 were in various stage of implementation, while
the status of the remaining 51 was not indicated.
Some of the open DCRs
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date back to 1977, 1978.
The licensee indicated that additional emphasis
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will be made to reduce the backlog of DCRs now that the Unit 1 outage work
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is completed.
This item will remain open pending further review by NRC
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Region II.
4.
Unresolved Items
Unresolved items were not identified during this inspection.
5.
Snubber Surveillance Program, Units 1 and 2 (70370)
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The inspectors examined procedures and quality records related to the
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snubber surveillance program and inspected snubbers on safety-related
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piping systems.
Acceptance criteria examined by the inspectors appear in
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Unit 1 Technical Specification 3/4.6.L and Unit 2 Technical Specification
3/4.7.4.
a.
Review of Snubber Surveillance Procedures
The inspectors examined the following procedures whicn control
snubber surveillance activities:
(1) Procedure numbers 52SV-SUV-001-IS and 52SV-SUV-001-25, Hydraulic
Shock and Sway Arrestor Inspection and Functional Test.
(2) Procedure
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and
Inspection and Testing Pacific Scientific Mechanical Snubber.
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(3) Procedure number 52GM-MME-025-01, Removed of Pipe Hangers,
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Restraints and Supports.
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Review of the above procedure and discussions with responsible
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engineers disclosed that the tables listing safety-related snubbers
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in procedures were currently being updated and revised.
Some of
these revisions were due to addition of new safety-related snubbers
to systems and expansion of boundaries of safety-related systems
which resulted in inclusion of additional snubbers under the TS
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surveillance program.
The licensee identified the discrepancies in
the snubber listings on Deficiency Card 1-87-381 during the
Spring 1987 refueling outage.
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Review of procedures 52IT-MME-002-IS and 2S disclosed the following
violation:
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Units 1 and 2 TS 6.8.1 requires that written procedures be establish-
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ed covering activities referenced in Appendix A of Regulatory Guide
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(RG) 1.33.
Paragraph 8.b of RG 1.33 Appendix A requires that proce-
dures be written and implemented for each surveillance test listed in
the TSs.
Contrary to this requirement, procedures were not written
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to cover inspection of mechanical snubbers required by Unit 1 TS
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4.6.L.2.(3)(a) and (b) and Unit 2 TS 4.7.4.(3)(a) and (b) to deter-
mine if there had been a severe dynamic event and verify the snubbers
were not frozen up. This violation was identified to the licensee as
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Violation Item 321, 366/87-14-01, Failure to Have Written Procedure
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to Cover Inspection of Mechanical Snubbers After Sever Dynamic Event.
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b.
Inspection of Snubbers
The inspectors performed a visual inspection of the .' following
(1) Snubber numbers 1E11 RHR 193*, IE11 RHR 213, 216 and 217 on the
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Unit 1 RHR system
(2) Snubber numbers 2E11 RHR 268, 269 A/B and 220 on the Unit 2 RHR
system
(3)
Snubber number IE21 CSH-21 as the Unit 1 core spray system
- Indicates mechanical snubber.
All other snubbers listed are
hydraulic type.
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During the above inspection, the inspectors verified that the
snubbers were not damaged, that attachment to the supporting
structure (hanger) and piping was secure, and for hydraulic snubbers
that the reservoir levels acceptable.
One hydraulic snubber
examined, number 2G11 RHR 269B, had a reservoir level more than one
increment below full capacity when examined in accordance with
procedure 52SV-SUV-001-IS.
Per the procedure this snubber was
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considered to be low in fluid and required replacement. The licensee
installed a new snubber in this location on July 2,1987, under
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maintenance work order 2-87-2446.
The licensee will perform a
functional test on the removed snubber to determine if it was
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c.
Review of Quality Records
The inspectors examined quality records documenting visual inspection
of Unit 1 inaccessible hydraulic snubbers performed during April-May
1987.
The inspectors also examined the results of functional tests
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performed on mechanical snubber numbers 1 831-F3-H 800, 1EH-RHRH-724,
1 E 11 RHRH-728, 1 N11-MSH-50A, and 1 N11-MSH-43.
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Within the area examined, no-deviations were identified.
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