98-14774. Loss of Reactor Coolant Inventory and Associated Potential for Loss of Emergency Mitigation Functions While in a Shutdown Condition; Issue

[Federal Register Volume 63, Number 107 (Thursday, June 4, 1998)]
[Notices]
[Page 30521]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-14774]


-----------------------------------------------------------------------

NUCLEAR REGULATORY COMMISSION


Loss of Reactor Coolant Inventory and Associated Potential for 
Loss of Emergency Mitigation Functions While in a Shutdown Condition; 
Issue

AGENCY: Nuclear Regulatory Commission.

ACTION: Notice of issuance.

-----------------------------------------------------------------------

SUMMARY: The Nuclear Regulatory Commission (NRC) has issued Generic 
Letter (GL) 98-02 to all holders of operating licenses for pressurized-
water reactors, except those who have permanently ceased operations and 
have certified that fuel has been permanently removed from the reactor 
vessel, to request that addressees (1) assess the susceptibility of 
their residual heat removal (RHR) and emergency core cooling (ECC) 
systems to common-cause failure as a result of reactor coolant system 
(RCS) draindown while in a shutdown condition, and (2) submit certain 
information, pursuant to Sec. 50.54(f) of Title 10 of the Code of 
Federal Regulations (10 CFR 50.54(f)), concerning their findings 
regarding potential pathways for inadvertent RCS drain-down and the 
suitability of surveillance, maintenance, modification and operating 
practices and procedures regarding configuration control during reactor 
shutdown cooling.
    The generic letter is available in the NRC Public Document Room 
under accession number 9805050197.

DATES: The generic letter was issued on May 28, 1998.

ADDRESSEES: Not applicable.

FOR FURTHER INFORMATION CONTACT: Muhammad M. Razzaque, at (301) 415-
2882.

SUPPLEMENTARY INFORMATION: This generic letter does not constitute a 
backfit as defined in 10 CFR 50.109(a)(1) since it does not impose 
modifications of or additions to structures, systems or components or 
to design or operation of an addressee's facility. It also does not 
impose an interpretation of the Commission's rules that is either new 
or different from a previous staff position. The staff, therefore, has 
not performed a backfit analysis.

    Dated at Rockville, Maryland, this 28th day of May 1998.

    For the Nuclear Regulatory Commission.
Jack W. Roe,
Acting Director, Division of Reactor Program Management, Office of 
Nuclear Reactor Regulation.
[FR Doc. 98-14774 Filed 6-3-98; 8:45 am]
BILLING CODE 7590-01-P