ML20085M529
| ML20085M529 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 01/14/1974 |
| From: | Gilleland J TENNESSEE VALLEY AUTHORITY |
| To: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| ROB-73-06, ROB-73-6, NUDOCS 8311080623 | |
| Download: ML20085M529 (3) | |
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Janunry lb, leph F-a v c r
Mr. Normin C.
Poseley, Director g
g; Directorate of Itegula t.o ry Opera tions y
E U.S. A t o r-i c i:nergy Cormis, ion I
Region 11 - Suite 918 5
230 Peac utrce St.
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Atlant.
Georg 30303 D<ar Mr. Moseley:
Thir :s in response to Directorate of Regulatory Operations letter E
Rn : 1 I : T'30-239, 50-260 and 50-296, dated Wovember 26, 1973, which tran mitted Ret;ula tory Operat ions Bulletin No. 73-6, " Inadvertent Criticality in a Boilin;; Water Reactor."
Our responses to Bulletin t
g 73-6 follow; each recponse is keyed so a particular section of the bu'letin.
L l.a.(1) - We h. ce reviewc our control rod drive system operating
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and 'esting procedures and have determined adequate I
appt >ved instructions exist.
F-L 1.a.(2) - T' me instructions were also reviewed to determine i: they contain adequate prerequisiter and procedural
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F con t..als.
Ue find that the approved startup test S'Y.h'Js h
instructions w!i.h are the controlling docuuents for Ab ' -
g present la u t operating conditions contain aJaquate ut;itas for testing associated interlocking pr.
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protective featuren.
In certain instances, the a
plant operati instructions which will replace the
-1 instructions 2,
use during the startup testing period
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were inadequate.
These ii.structions are being revised as appropriate and will be availabic when required.
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F 1.a. (3) - We have reviewed.he instructions to determine that the
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prerequisites and uetails demonstrate compliance with
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technical spec ification requirements and design basis.
A situation similar to that repor ted above in 1.a. (2)
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The startup test instructiens now in use yj
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E are fully adequate, but the operational instructions i 'T4
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which will replace them in some cases rtquire improve-k M.
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This work will be completed by the time these
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instructions are needed.
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8311000623 740114 0 Ql PDR ADOCK 05000259 PDR r.*f p",*
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Mr. Norman C. Moseley, Director January 14, 1974 1.b.
- The existing bypass installation procedur(:; have been reviewed by engineering and operatio:., personnel for technical adequacy and for administrative controls.
Plant instructions were found to be adequate, but sev-eral procedural errors were uncovered as a result of this review.
Corrective action was taken immediately upon discovery.
1.c.
- Industrial Security Instruction No.1, Radiological Control Instruction No. 2, and the Radiological Emergency Plan contain procedures for access control and personnel cecountability. These instructions have been ririmed to assure that they are current and accomplish their objectives.
1.d.
- A review of the instruction governing shift turnover b-fi confirms that it requires cor c.:unicating the status of
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individual being relieved.
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- Standard Practice B5 '.36 delineates the mai.agement cor -
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trols for temporary circuitry changes and temporary
$+k off-normal plant conditions. These temporary changes
- ' j*y are made only in accordance with approved instructions which are periodically reviewed to ensure that safety-
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V related equipment and procedural controls have not
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y been degraded.
Similar management controls are being
[f.J used for permanent modifications and are fully under-
'l stood by the plant cupervisors. These supervisors
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(}C t.s have also reviewed the standard practice and under-stand the administrative controls established by it.
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- An extensive and comprehensive training program has A 32
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The program is repeated annually and is mandatory for all licensed operators.
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Safety-related activities that are infrequent, complex, A. ";
or have unusual safety significance will be covered by J.J.[,,}
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. 1 Mr. Norman C. Moseley, Director January 11+, 197 4
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the review of applicable BWR abnormal occurrences and
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operating experience reports and by planc abnormal
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and emergency opera Ing instructions.
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Very truly yours, i ;., r "
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.'!,J.E.Gilleland A'hh
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Assistant to the Manager of Power
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Letter from Tennennee Valley Autho11by, J. E.
Gilleland dated January 14, 1974 50-259, 50-260 and 50-296' g3 y7 D74 DISTRIEUT:Coli:
H. 1). Thornburg M:HQ (4)
DR Central Filec Direc torate of Licensing (4 )
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