ML17250B252
| ML17250B252 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 06/17/1991 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Andrea Johnson Office of Nuclear Reactor Regulation |
| References | |
| GL-88-14, NUDOCS 9109190225 | |
| Download: ML17250B252 (5) | |
Text
ACCELERATED DJ RIBUTION DEMONS TION SYSTEM
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iF'EGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:9109190225 DOC.DATE: 91/06/17 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
05000244 AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas 6 Electric Corp.
RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R.
Project Directorate I-3
SUBJECT:
Suppls 890203 response to Generic Ltr 88-14, "Instrument Air Supply Sys Problems Affecting Safety-Related Equipment."
Results of axr quality testing at facility in Mar
& Apr 1989 listed.
DISTRIBUTION CODE:
DFOID COPIES RECEIVED:LTR 2 ENCL J2 SIZE:
TITLE: Direct Flow Distribution:
50 Docket (PDR Avail)
D NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).
05000244 A
RECIPIENT ID CODE/NAME INTERNAL: NUDOCS-ABSTRACT EXTERNAL: NRC PDR COPIES LTTR ENCL EG FILE NSIC 01 RECIPIENT ID CODE/NAME COPIES LTTR ENCL D
D D
NOTE TO ALL"RIDS" RECIPIENTS:
D D
PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 4
ENCL
'J'IIJlVi2ii'III".',"l"Ill"rr ROCHESTER GAS AND ELECTRIC CORPORATION 7
s TOES STAVE
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89 EAST AVENUE, ROCHESTER N.K 14649-0001 ROBERT C. MECREDY Vice President Cinna Nuclear Production TELEPHONE AAEACODE 7i6 546 2700 June 17, 1991 U.S. Nuclear Regulatory Commission Document Control Desk Attn:
Allen R. Johnson Project Directorate I-3 Washington, D.C.
20555
Subject:
Generic Letter 88-14 R.E.
Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Johnson:
This letter is being rovided i response to the reporting provisions of Generic Lett r 88-14, 'nstrument Air Supply System Problems Affecting Safety R lated E
ipment."
In that Generic Letter, it was requested that provide a written notification that all necessary actions taken to implement our commitments are complete (as specified in our February 3,
1989 response).
Generic Letter 88-14 requested confirmation of actions taken to implement four specific actions.
Based on a review of NUREG-1275 Volume 2 and Generic Letter 88-14 the four actions, and our
- results, are as follows:
Action 1: Verification by test that actual instrument air quality is consistent with the manufacturer's recommendation for individual components served.
Results:
In March and April of 1989, RG&E performed air quality testing of the Ginna Station Instrument Air System.
This testing monitored the parameters specified in ANSI/ISA Standard S7.3-1975 (R1981), "Quality Standard for Instrument Air".
These parameters, and the results
- obtained, were:
a.
Dew Point:
-39'F (at line pressure) b.
Particle Size:
None larger than 3 microns c.
Oil Content:
None measurable 9209i90225 910617 PDR AGOCK 05000244 P
PDIi p) io
-ROCHESTER GAS AND ELE
/C CORP.
~ DATE 6/17/91
~ 'To Mr. Allen R. Johnson SHEET NO.
2 The Instrument Air System intake at the Ginna Station is located in an area free of chemical contaminants.
The system has no scrubber or other equipment utilized for the removal of chemical contaminants from the system.
Therefore, no contamination tests were performed to check the effectiveness of any such equipment.
This is consistent with the guidance of ISA RP7.7-1984, "Recommended Practice for Producing Quality Instrument Air."
Action 2: Verification that maintenance practices, emergency procedures, and training are adequa'te to ensure that safety-related equipment will function as intended on a loss of instrument air.
Results:
All Instrument Air System maintenance practices, operating procedures, annunciator procedures, emergency procedures, training scenarios, and training lesson plans were reviewed as part of an overall Instrument Air System functional inspection.
This review indicated that these items were acceptable and that the Instrument Air System would function as intended upon a
loss of instrument air pressure.
Additionally, a detailed review of the Ginna Station Air-Operated Valve test procedures was performed to verify that the failure position of each safety-
- related, pneumatically-operated valve had been identified.
This review confirmed that these air-operated valves in the plant would function as intended upon a loss of instrument air.
The Ginna Station Quality Assurance
- Manual, Appendix C, "Inservice Pump and Valve Testing Program" governs testing of safety-related, air-operated, valves.
Action 3: Verification that the design of the Instrument Air System is in accordance with its intended function.
This includes verification by test that air-operated safety components will perform as expected.
Results:
The design basis of the Instrument Air System was researched and documented in a Design Basis Document (DBD).
The Instrument Air System itself was also tested to demonstrate that design requirements for air flow, pressure, and air quality specified in the original design continue to be maintained.
Through the DBD (which included an Instrument Air System Description) and the testing performed to demonstrate the functionality of system components, it
ROCHESTER GAS AND ELECTRIC CORP.
', DATE 6/17/91 To Mr. Allen R. Johnson 0
SHEET NO.
3 was verified that the system design is consistent with the original design specifications and requirements.
Action 4:
A discussion of the program for maintaining proper instrument air quality.
Results:
The following Preventative Maintenance, Test and Monitoring Program has been implemented to ensure the continued high quality of instrument air:
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Annual major inspection and maintenance of each compressor and moisture trap.
Annual filter and dryer dessicant inspection and/or replacement.
Semi-annual minor inspection of compressor (inlet and discharge valve) and inlet air filter.
Quarterly aftercooler backflush.
Quarterly dewpoint and flow tests.
Annual hydrocarbon and particle sampling.
Annual calibration of compressor indicators,
- alarms, and controls.
Blowdown of air receivers each shift.
Monitoring air filter differential pressure each shift.
RG&E has completed all of these actions, and will retain the documentation verification for a minimum of two years.
Very truly yours, Robert C.
Mec dy xc:
Mr. Allen R. Johnson jMail Stop 14D1)
Project Directorate I-3 Washington, D.C.
20555 U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Ginna Senior Resident Inspector
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