ML20195G369
| ML20195G369 | |
| Person / Time | |
|---|---|
| Issue date: | 08/14/1987 |
| From: | Murley T Office of Nuclear Reactor Regulation |
| To: | Beckjord E NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| Shared Package | |
| ML20195G243 | List:
|
| References | |
| FOIA-87-714, TASK-093, TASK-93, TASK-OR IEB-85-001, IEB-85-1, NUDOCS 8708210408 | |
| Download: ML20195G369 (2) | |
Text
..
s Original: Sheron
.. I cys: Beckjord UNITED STATES
! NUCLEAR REGULATORY COMMISSION nAsMinatow. o. c. mses Minners Kniel
,, AUG 141NI no MEMORANDUM FOR: Eric S. Beckjord, Director Office of Nuclear Regulatory Research FROM: Thomas E. Murley, Director Office of Nuclear Reactor Regulation
SUBJECT:
RESOLUTION OF GENERIC SAFETY ISSUE 93, "STEAM BINDING OF AUXILIARY FEEDWATER PUMPS" l
l This memorandum is in response to your request, included in memoranda of May 1, 1987 and June 26, 1987, that NRC Inspection Procedures be modified to include monitoring of Auxiliary Feedwater System (AFVS) backleakage and that Licensing Project Managers ensure that the annual licensee updates of FSARs include documentation of ar.y added AFWS backleakage monitoring systems. ,
IE Bulletin 85-01, issued Octcber 29, 1985, required that licensees develop and implement procedures covering the subjects nf periodic monitoring of AFWS temperatures, recognizing steam binding, and recovering from a stearr binding event. Temporary Instruction 2515/69 issued December 20, 1985 (expired l April 30, 1987) defined the inspection requirements to verify that licensee personnel understood and were using the new procedures. The generic letter
! discussed in your May 1, 1987 memorandum, requires licensees to continue to l implement the precedures required by IE Bulletin 85-01 on a routine basis.
I Current NRC Inspection Procedures (IPs) require periodic review of licensee adherence to approved procedures and surveillance tests. Inspection Procedure 71707, "Operational Safety Verification," which is part of the minimum er basic l NRC Light-Water Reactor Inspection Program for the Operations Phase, provides l guidance that the auxiliary feedwater system should be included as part of the p(eriodic 71707-03c). operability verification Additionally, of engineered the procedural safety features requirements (ESF) of for inspection trains ESF systems require weekly inspection by the resident inspector of any general condition that might prevent fulfillment of their functional requirements. On this basis, we believe there is no need to add a new specific inspection requirement for inspection of AFWS pumps for steam binding. However, we will revise IP 71707-03c to include the matter of monitoring the AFVS pumps for steam binding as an example of a recurring operational event that shquid be periodically checked by the NRC inspectors.
Any changes affecting the FSAR are required to be submitted by the licensee
. to the NRC by 10 CFR 50.71. AFWS backleakage monitoring systems which meet the requirements of 10 CFR 50.71 would be covered by this requirement. We do g:u g
- JYa ys
.I Eric 5.'Beckjord '
j AUG 14 ter7 not consider it appropriate to initiate a special requ'irement for review of l
such licensee submittals to determine if the licensee's program for AFWS backleakage monitoring systems is included.
It is our belief that the current licensing and inspection requirements, l particularly after the revision to IP 71707 guidance, will be sufficient to provide adequate assurance that licensees continue to address steam binding of Auxiliary Feedwater Pumps.
Thomas E. Murley, Director Office of Nuclear Reector Regulation l
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