ML20207K130

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Insp Repts 50-321/86-15 & 50-366/86-15 on 860426-0530. Violation Noted:Failure to Recognize Inoperable Hydraulic Snubber
ML20207K130
Person / Time
Site: Hatch  Southern Nuclear icon.png
Issue date: 06/26/1986
From: Holmesray P, Ignatonis A, Nejfelt G
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20207K098 List:
References
50-321-86-15, 50-366-86-15, NUDOCS 8607290343
Download: ML20207K130 (6)


See also: IR 05000321/1986015

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UNITED STATES

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NUCLEAR REGULATORY COMMISSION

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101 MARIETTA STREET.N.W.

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ATLANTA. GEORGI A 30323

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Report Nos.:

50-321/86-15 and 50-366/86-15

Licensee: Georgia Power Company

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ATTN: Mr. J. H. Miller

President, Power Supply

P.O. Box 4545

Atlanta, GA 30302

Docket Nos.: 50-321 and 50-366

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License Nos.: DPR-57 and NPF-5

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Facility Name: Hatch 1 and 2

Inspection Dates: April 26 - May 30, 1986

Inspectors:

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HolmesMay, S pior Resident Inspector

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h. M. Nejfel%', Resiepht Insnector

Date Mgned

Approved by:

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A. J. Egnat(p'is,Thlgff, Project Section 3B

Dite Sig~ned

Division of Reactor Projects

SUMMARY

Scope:

This routine inspection was conducted at the site in the' areas 'of

Licensee Action on Previous Enforcement Matters, Operational Safety Verification,

Maintenance Observation, Plant Modification and Surveillance Observation,

Reportable Occurrences, and Reactor Startup after Refueling Outage.

Results: One violation was identified - failure _to recognize an inoperable

hydraulic snubber.

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REPORT DETAILS

1.

Persons Contacted

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Licensee Employees

  • H. C. Nix, Site General Manager

T. Greene, Deputy Site General Manager

  • H. L. Sumner, Operations Manager

T. Seitz, Maintenance Manager

  • T. R. Powers, Engineering Manager

R. W. Zavadoski, Health Physics and Chemistry Manager

  • 0. M. Fraser, Site Quality Assurance (QA) Manager (Acting)

C. T. Moore, Training Manager

  • S. B. Tipps, Superintendent of Regulatory Compliance

Other licensee employees contacted included technicians, operators,

mechanics, security force members and office personnel.

  • Attended exit interview

2.

Exit Interview (30703)

The inspection scope and findings were summarized on June 3,1986, with

those persons indicated in paragraph 1 above, and on June 24, 1986, with J.

D.

Heidt of the corporate office.

The licensee did not identi fy as

proprietary any of the material provided to or reviewed by the inspectors

during this inspection.

One unresolved item * and a violation were

identified.

The licensee acknowledged the findings and took no exception.

(0 pen) Unresolved Item 50-321/86-15-01 - Unit 1 "1A" Standby Gas Treatment

System charcoal filter was found to be degraded and declared inoperable due

to being wet (paragraph 8).

(0 pen) Violation 50-366/86-15-02 - Failure to recognize an inoperable

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hydraulic snubber (paragraph 8).

3.

Licensee Action on Previous Enforcement Matters (92702)

(Closed) Violation 50-321/85-32-01 - Failure to report pipe crack within

four hours to NRC. GPC letters of January 13, 1986 and April 2, 1986, were

reviewed.

In both letters GPC denied the violation, but agreed that the

event was reportable as a Licensee Event Report. After a careful review of

GPC responses primarily based on the interpretation taken with regard-to

10 CFR 50.72 reporting requirements published in the Federal Register 39042,

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  • An Unresolved Item is a matter about which more information is required to

determine whether it is acceptable or may involve a violation or deviation.

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Volume 48, No. 168 dated August 29, 1983, the NRC agreed with GPC that a

four hour verbal report was not required for this case; hence, the violation

was witndrawn. The licensee's corrective actions with regard to the pipe

crack and have been reviewed and determined to be acceptable by the

inspector.

(Closed) Violation 50-321/85-34-01 - Backseated valve closure time exceeded

TS Table 3.7-1 limit. GPC letter of February 17, 1986 was reviewed and was

determined to be acceptable by the inspector verifying the licensee's

response. Valves that were electrical backseated, after implementation of

the corrective actions, were reviewed to ensure Engineering Department

involvement.

No discrepancies were noted.

(Closed) Deficiency 50-366/79-21-03 - Failure to retain records as required

by TS 6.10.1.d.

Georgia Power Company (GPC) letter of August 14, 1979, for

this deficiency was reviewed and was determined to be acceptable by the

inspector verifying the licensee's response. No discrepancies were noted.

4.

Operational Safety Verification (71707)

The inspectors kept themselves informed on a daily basis of the overall

plant status and any significant safety matters related to plant operations.

Daily discussions were held with plant management and various members of the

plant operating staff. The inspectors made frequent visits to the control

room. Observations included instrument readings, setpoints and recordings,

status of operating systems, tags and clearances on equipment, controls and

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switches, annunciator alarms, adherence to limiting conditions for opera-

tion, temporary alterations in effect, daily journals and data sheet

entries, control room manning, and access controls.

This inspection

activity included numerous informal discussions with operators and their

supervisors.

Weekly, when on site, selected Engineering Safety Feature

(ESF) systems were confirmed operable.

The confirmation was made by

verifying the following: Accessible valve flow path alignment, power supply

breaker and fuse status, instrumentation, major component leakage, lubrica-

tion, cooling, and general condition.

.

General plant tours were conducted on at least a biweekly basis. Portions

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of the Control Building, Turbine Building, Reactor Building and outside

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areas were visited. Observations included safety related tagout verifica-

tions, shift turnover, sampling program, housekeeping and general plant

conditions, fire protection equipment, control of activities in progress,

radiation protection controls, physical security, problem identification

systems, and containment isolation.

In the course of the monthly activities, the Resident Inspectors included a

review of the licensee's physical security program.

The performance of

various shifts of the security force was observed in the conduct of daily

activities to include: protected and vital access controls; searching of

personnel, packages and vehicles; badge issuance and retrieval; escorting of

visitors; patrols; and compensatory posts.

In addition, the Resident

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Inspectors observed protected area lighting, protected and vital areas

barrier integrity and verified an interface between the security organiza-

tion and operations or maintenance. On May 22, 1986, the Resident Inspector

visited the central and secondary alarm stations.

5.

Maintenance Observation (62703)

During the report period, the inspectors observed selected maintenance

activities. The observations included a review of the work documents for

adequacy, adherence to procedures, proper tagouts, adherence to Technical

Specifications, radiological controls, observation of all or part of the

actual work and/or retesting in progress, specified retest requirements, and

adherence to the appropriate quality controls.

Plant housckeeping needs to be improved, after work is conducted in an area.

During this report period, tools, scrap sheet metal, empty plastic bags, and

electrical extensions were found in the Unit-1 and Unit-2 Reactor Buildings.

Otherwise, the housekeeping in these areas was very good.

No violations or deviations were identified.

6.

Plant Modification and Surveillance Testing Observations (37700 & 61726)

The inspectors observed the performance of selected surveillances and plant

modification Design Change Requests (DCRs).

The observation included a

review of the procedure and/or DCR for technical adequacy, conformance to

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Technical Specifications, verification of test instrument calibration,

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observation of all or part of the actual surveillances, removal from service

and return to service of the system or components affected, and review of

the data for acceptability based epon the acceptance criteria.

No violations or deviations were identified.

7.

ESF System Walkdown (71710)

The inspectors routinely conduct partial walkdowns of ESF systems. Valve and

breaker / switch lineups and equipment conditions were randomly verified both

locally end in the control room to verify that the lineups were in accord-

ance with licensee requirements for operability and equipment material

conditions.

During the inspection period the inspectors conducted a

complete walkdown, in the accessible areas, of the Unit-1 High Pressure

Coolant Injection (HPCI) System.

Within the areas inspected, no violations or deviations were identified.

8.

Reportable Occurrences (90712 & 92700)

The following Licensee Event Reports (LERs) were reviewed for potential

generic impact, to detect trends, and to determine whether corrective

actions appeared appropriate. Events which were reported immediately were

also

reviewed as they occurred to determine that the Technical

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Specifications were being met and the public health and safety were of

utmost consideration. The follow LERs are considered closed: (A* indicates

an in-depth review was performed).

Unit-1: 86-07 , 85-14 , 86-15, and 86-16.

Unit-2: 86-06 , 86-14 .

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LER 50-321, 366/86-14 Unit 1 TS 4.7. A.2.f and Unit 2 TS 4.6.1.2.d require

Type

"C"

Containment Isolation Valve Local Testing at an interval not

greater than two years. The following Post Accident Sampling (PASS) return

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lines installed by Design Change Request (DCR)79-475 for Unit 1 and by DCR

79-476 for Unit 2 were not tested within the required two year period:

1821-F111,1821-F112,1E41-F121, and 1E41-F122 for Unit 1 were last tested

February 13,1983; and 2B21-F111, 2821-F112, 2E41-F121, and 2E41-F122 for

Unit 2 were not tested since initial installation tests. Unit I valves were

tested on 4/17/86 and Unit 2 valves will be tested during the upcoming

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refueling scheduled for September 1986.

The licensee is conducting an

engineering review to ensure no other valves were omitted and changing the

leak test procedure to incorporate the proper valves.

Since the TS

violation was identified by the licensee and meets the five criteria of

10 CFR 2 Appendix C for licensee sel f-identi fication and correction, a

Notice of Violation will not be issued.

The inspector will continue to

review licensee action in this area to ensure the corrective action is

adequate to prevent recurrence.

LER 50-321/86-07 Unit 1 TS 3.7.B.1.a requires both Unit 1 SBGT system trains

be operable at all times when Unit 1 secondary containment is required.

Unit 1 TS 3.7.C.1.b requires Unit 1 secondary containment be maintained with

Unit 2 in operational conditions 1, 2, 3, and 5.

Contrary to the above, on

March 11, 1986, with Unit 2 in Operatiunal Condition 1, the Unit 1 "1A" SBGT

charcoal filter train was found to be degraded and declared inoperable

during the performance of the once per operating cycle surveillance test

procedure 42SV-T46-003-1, Revision 0 because the charcoal filter was wet.

The charcoal filter bed apparently became wet from a leaking fire protection

deluge valve, IT43-F032A on or before November 24, 1985.

Leakage from a

fire protection deluge drip check valve, which represented a leaking SBGT

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deluge valve, was not recognized as a condition requiring verification of

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the SBGT operability. The fire protection deluge water supply valve was

closed on November 24, 1985, when IT43-F032A was found leaking.

This is

identified as an unresolved item pending further investigation by the

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inspector in determining the significance of the event (UNR 50-321/86-15-01).

LER 50-366/86-06 Unit 2 TS 4.7.4.b, Amendment No. 51, which became in effect

on August 5, 1985 requires that a snubber be declared inoperable if visible

signs of leakage are present. Contrary to the above, on February 26, 1986,

hydraulic snubber 2E11-RHR-R90 was found leaking but was not declared

inoperable.

Procedure 52SV-SUV-001-2, Revision 0,

which was effective

August 7,1985, failed to include the visual inspection acceptance criteria

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of TS Amendment 51.

TS Amendment No. 51 which was implemented by the

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licensee on September 4,1986, changed the snubber inspection criteria in

order to conform with the Standard Tecienical Specifications. The snubber

was repaired on March 18, 1986.

This is a recurring problem which was

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previously discussed in LER 50-321/1985-028 and LER 50-366/1985-028 and

constitutes a violation (50-366/86-15-02).

9.

Reactor Startup After Refueling Outage (61707 and 71711)

During this reporting interval, the inspector verified that the Unit-1

shutdown margin demonstration for the unit startup was performed in accord-

ance with procedure, 42FH-ENG-019-1, Revision

0.

Also, i.he inspector

witnessed the performance of individual rod scram testing. The strip chart

recordings that were obtained from this testing were reviewed using proce-

dure 42FH-ENG-020-1S, Revision 1, to ensure Unit-1 Technical Specification , 3.3.C.2 scram insertion time compliance.

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Within the areas inspected no violations or deviations were identified.

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