ML18030B182
| ML18030B182 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/10/1986 |
| From: | Grotenhuis M Office of Nuclear Reactor Regulation |
| To: | White S TENNESSEE VALLEY AUTHORITY |
| References | |
| GL-84-09, GL-84-9, NUDOCS 8603140478 | |
| Download: ML18030B182 (5) | |
Text
Docket Nos.
50-259/260/296 Mr. S. A. White Manager of Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801
Dear Mr. White:
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SUBJECT:
HYDROGEN RECOMBINER RELIEF Re:
Browns Ferry Nuclear Plant, Units 1,,2 and 3
By letter dated July 2, 1984, TVA responded to the letter from D.
G. Eisenhut dated May 8, 1984 regarding recombiner
'capability requirements of 10 CFR 50.44(c)(3)(iii).
We have reviewed the July 2, 1984 letter and find that we need the information contained in the enclosu're to this letter to complete our review.
Please respond to this request within 60 days from the date of receipt of this letter.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely,
'.'-'."&+@ah signed bg Marshall Grotenhuis, Project Manager BWR Project Directorate ¹2 Division of BWR Licensing
Enclosure:
As stated cc w/enclosure:
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Mr. S.
A. Hhite Tennessee Valley Authority Browns Ferry Nuclear Plant Units 1, 2, and 3
CC:
II. S. Sanqer, Jr., Esouire General Counsel Tennessee
)alley Authority 400 Commerce Avenue E 11B 330 Knoxville, Tennessee 37902 Mr. Ron Roaers Tennessee Valley Authority 5N 130B Lookout Place Chattanooga, Tennessee 37402-2801
- Chairman, Limestone County Commission Post; Office Box 188
- Athens, Alabama 35611 Ira L. Meyers, M.D.
State Health Officer State Department of Public Ilealth State Office Building Iiontgomery, Alabama 36130 Mr. K. I!. Hhitt E3AB 400 Hest Summit !!ill Drive Tennessee Valley Authority Knoxville, Tennessee 37902 Reqional Administrator, Region II U. S. Nuclear Regulatory Commission 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Mr. Steven Roessler U. S. Nuclear Regulatory Commission Reactor Training Center Osborne Office Center, Suite 200 Chattanooga, Tennessee 37411 H. C. Bibb Site Director, BFNP Tennessee Valley Authority Post Office Box 2000
- Decatur, Alabama 35602 Resident Inspector U. S. Nuclear Regulatory Commission Route 2, Box 311
- Athens, Alabama 35611 Mr. Donald L. 'I!illiams, Jr.
Tennessee Valley Authority 400 I!est Summit Hill Drive, 'I!10B85 Knoxville, Tennessee 37902 Robert L. Lewis, t1anaper, RFNP Tennessee Valley Authority Post Office Box 2000
- Decatur, Alabama 35602
RE VEST FOR ADDITIONAL INFORMATION BROMNS FERRY NUCLEAR PLANT UNITS I, ND 3 1.
Based on your July 2, 1984 reply to Generic Letter 84-09, the possibility exists that valve'2-332 (Ref:
FSAR Fig.
- 10. 14-4),
backup air supply cutout valve, might be open during the course of a LOCA.
This could occur as a result of having been left open following a prior maintenance procedure or as a result of a deliberate action due to a loss of drywell air compressor operability.
Describe any administrative controls, presently in effect, or planned, which assures that when 32-332 is open, and primary containment integrity is required, the control room operators will close this valve in the event of a LOCA.
Verify whether this valve can be closed from the control room or locally.
Include in your response a discussion of the anticipated timing of the necessary operator actions.
2.
The control nitrogen system, which supplies systems insi'de'containment, utilizes recycled containment atmosphere during normal operation.
- However, an air supply system is used as a backup to the control nitrogen system.
Additionally, the isolation provisions (penetration X-22) used'for the normal nitrogen supply and the backup air supply systems consist of two check valves, one located on each side of the containment.
This arrangement does not comply with the 10 CFR 50, Appendix A, GDC 56, requirements (i. e.
sole use of vacuum breakers for isolation).
Provide the following information:
a.
The procedures and instrumentation available to the operators to be used to meet the intent of Criterion 3 of Generic Letter 84-09 if the backup air supply is in use when the LOCA occurs.
b.
The means by which the operator would become aware that operation of the backup air system may have filled the accumulators with air.
c.
The philosophy used to demonstrate compliance with the requirements for use of vacuum breakers as isolation valves contained in 10 CFR 50, Appendix A, GDC 56.
c
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A