ML19254A781
| ML19254A781 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 08/07/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Parris H TENNESSEE VALLEY AUTHORITY |
| References | |
| NUDOCS 7908160151 | |
| Download: ML19254A781 (2) | |
Text
C[ / C p* * * "' G%,,
UNITED STATES o
!\\
. g ',n NUCLEAR REGULATORY COMMISSION I ' ' l '-*c#
REGION 11 T
r o, p.dh[a
,[
101 M ARif TT A ST., N W., SUIT E 3100 AT L ANT A, GEORGI A 30303
[
6, AUG 7 1979 In Reply Refer To:
RII:JPO
( T Q 2 9,c fo!Frs Tennessee Valley Authority Attn H. G. Parris Manager of Power 500A chestnut Street Tower II Chnttanooga, Tennessee 37h01 Gentlemen:
The enclosed Eu11etin 79-18 is forwarded to you for action. A vritten response is required.
If you desire additional ~infomation regarding this matter, please contact this office.
Sincerely, c
.w%
k ~
_,N bet /
g"' James P. O'Reilly Director
Enclosures:
1.
Listing of IE Bulletins Issued in Last Six Months
- g08160 6 k
AUG 7 1979 Tennessee Valley Authority s cc w/ encl:
J. G. Dewease Plant Superintendent Post Office Box 2000 Decatur, Alabama 35602 J. F. Cox 400 Commerce Street W10C131 C Knoxville, Tennessee 37902 D. E. McCloud Project Engineer 400 Chestnut Street Tower 11 Chattanooga, Tennessee 37401
ccessions No: 7908030403 (ESINS No: 6820 UNITED STATES NUCLEAR REGULATORY COMMISSI MENT 0FFICE OF INSPECTION AND EhTO WASHINGTON, D.C.
20555 August 7, 1979 IE Bulletin No. 79-18 E
AUDIBILITY PROBLEMS ENCOUNTERED ON EVACUAT AREAS Description of Circumstances:
In January 1979, a number of licensee personnel were engaged in routin tion, Crystal activities in the auxiliary building at the Florida Power CorporaWhile the l
of radio-River Unit 3 nuclear plant.
auxiliary building, in a high-noise (fan) area, an unplanned re ease h
uxiliary active noble gases was detected by building monitors within t e a lity building at concentrations which caused the licensee to initiate the faci The facility Emer-emergency plan auxiliary building evacuation procedur d initiated licensee's PA system, was not heard by the personnel working in th an auxiliary building evacuation.
Licensee personnel did evacuate the auxiliary building upon observin l roem to inquire that other personnel hrd left, and after calling the controDuring these occurrence area.
if an evacuation had been initiated.
l tory personnel were not exposed to quantities of radionuclides guidance.
of individuals to radioactive materials.
Subsequent to the NRC followup inspection of this occurrence, Flori Corporation initiated an assessment of this situation and performed a h
the annun-engineering evaluation and identified several plant areas w ereThe licensee has ciator system needed audibility improvement.
l indi-new auxiliary building evacuation tone signal and may add visual a ara cators in areas of very high-noise.
Action to N Taken by the Licensees:
For all power reactor facilities with an operating license:
Determine whether current alarm systems and evacuation announcem ith systems are clearly audible or visible throughout all plant areas w 1.
emphasis on high-noise areas.made with the maximum anticipated no M
/
Entire document previously entered into system under:
2 ANO 796g; y g
- y No. of pages
5
.