ML19224A553
| ML19224A553 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/01/1979 |
| From: | Herbein J Metropolitan Edison Co |
| To: | Grier B NRC Office of Inspection & Enforcement (IE Region I) |
| Shared Package | |
| ML19224A552 | List: |
| References | |
| TASK-TF, TASK-TMR GQL-0173, GQL-173, NUDOCS 7903080143 | |
| Download: ML19224A553 (3) | |
Text
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POST OFFICE BOX 542 fQ ADING, PENNSYLVANI A 19603 TELEPHONE 215 - 929-3601 February 1, 1979 GQL 0173 Mr. B. E. Grier, Director Office of Inspection & Enforcement Region 1 U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Deur Mr. Grier:
Three Mile Island Nuclear Station, Unit 1 (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 Inspection Report No.
78-24 Inspection Report 78-24, received under your letter of Tanuary 5, 1979, ider.ufied an apparent violation, based on Mr. T. Foley's inspection of TMI-l on December 12 - 14, 1978. Attached is Met-Ed's response to the apparent violation.
Please note that this response is three days late per telecons on January 29, and February 1, 1979, with Mr. D. Haverkamp of y,ur staff.
Sincerely,
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J. G.,Herbein Vice President-Generation
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JGH:DGM:tas Attachment V
790308016 "3 7G3
e Metropolitan Edison Compans Thre' Mile Island Unit 1 (TMI-1)
Inspeweion Report No. 78-24 Anparent Violation Technical Specification 6.8.1 states in part, that:
" Written procedures shall be established, implemented, and maintained..."
1.
Unit 1 Surveillance Procedures 1300-3B, 3G, and 3I in Step 7.4 of their Acceptance Criteria, state in part, that: "... compare the valve s troke times with those from the previous performance of this test.
If an increase in stroke time of 25% or more from the previous test...is observed, test frequency shall be increased for those valvea to once each mocth until corrective action is taken".
2.
Unit 1 Surveillance Procedure 1300-3H, " Makeup Pump and Valve Functional Tests",
Revision 1, March 11,1978, states that: " Surveillance Frequency - 31 days (M) for Pump Testing - 92 days (Q) for valve Testing".
Concrary to the above, procedures uere not followed on eight occasions during the period January 2, 1978 to July 2, 1978 in that:
1.
On seven occasiens valve strcke times increased by more than 25 percent from the previous test for valve numbers (EF-V30 A&B, MS-V133, NR-VlB. NR-VlC, NR-V43, DH-V3) and test frequency was not increased nor was corrective action taken; and, 2.
Su rveillanca Procedure 1300-3H was not performed f rom Jan2ary 2,1978 to July 2, 1978, a period of time in excess of 92 days.
Response
1.
A review of the valve test data sheets was conducted.
Results of the reviev indicat-that the valve stroke times that exceeded the 25% increase f rom the previous test criteria, appear to be the result of operator response time for the short stroke time valves (EF-V30A/B, MS-V13B), operator error in reading the stop watch sweep (i.e., each revolution is a 30 second sweep) for the valves with stroke ~imes on the order of 150 seconds (NR-VlB, NR-VlC, NR-V4B,
DH-V3), and f ailure of the operators to review the data from the previous tests to determine if the current stroke times exceeded the previous times by 25% or mo re.
In order to prevent recurrence of the above the procedures will be revised to include on the valve test data sheets a section for recording the stroke times of the previous tests. This will readily provide for a comparison of the current test results to the previous test results. The p rocedures will be revised by February 15, 1979.
Insofar t.s the results of subsequent valve stroke time testing are within the acceptable stroke time cr.teria, it has been concluded that increased test f requenc ies or corrective action f or the valves is not necessary.
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2.
When Surveillance Procedure 1300-3H appeared on the Surveillance Perf ormance Form printout, the makeup and purification system was out of service, and the valve surveillance was postponed, tihen the system was returned to service, the surveillance was overlooked.
To prevent recurrence, the ISI tagging system, currently used for pumps only, will be expanded to include valves. The tagging system provides for the identification of ISI tests that are required on equipment but can not be performed because the equipment is out of service.
In order to remove the tag and return the equipment to service, the required surveillances must be performed per the applicable requirements. The new tags will be developed and the system fully implemented by March 30, 1979.
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