ML20133B044
Text
..
- [ TS f %
NUCLEAR REGULATORY COMMISSION
- , I
(.;7
.;. gg%{/
- ~
wAsMmotoN. o. c. rosss
% ?~M.
l
.g j APR 10 sie er /
j NOTE TO:
B. J. Youngblood FROM:
W. Butler
SUBJECT:
CSB RELATED INPUT RE:
IDENTIFICATION OF MP&L TECHNICAL SPECIFICATION PROBLEM SHEETS THAT NEED RESOLUTION FOR LOW POWER OPERATION The CSB has completed the initial phase of the review request under TACS No. 54458.
The review involved identifying those Technical Specification (TS) problem sheets for the Grand Gulf Nuclear Station, Unit 1, as prepared by MP&L, that need resolution for low power operation.
Three items are felt to fall into this category.
They are items 292, 293, and 305.
Enclosed are our comments on the problem sheets themselves that should be addressed.
\\
t\\
1 W.
tier, Chief
Enclosure:
As stated Cent inment Systems Branch, DS!
cc:
R. W. Houston L. Kintner D. Ho f fman F
c,t '- -
,,1
=
4 a
,>t.
.I e
'J
.f'
, r!,
a%
,o e
g p's.'p,
, ( p. c,
~.....
(l;,h;_.) Y b 9
El:'
[
,',g 4
- \\ \\<
\\ C l
- ..b.
t y<,
q s.,,,
a.
$g.
4-
'i,.
'4 l
+
c.,
- N f b__+ _
u.
J l
0507200217 050D15 PDff FOIA DELLO4-459 pg>rt
.Y
- - - - = - -
TECHNICAL SPEC::::ATION PROBLEM SHEET
- em Nutter:
292!QCi3 P rio r' ty :
15 R. C. Clay:en
/3-19-84 R. Slovic Identified By Date Responsible Supervisor 4.6.1.3.d.2[/./,f,,2,3.d.2 Tecn Spec
Reference:
Tech Spec Page: 3/4 6-6 / g p./ f /6 Air Flask Pressure (Containment Air Lock)/(DANWELL s4t Problem
Title:
1..ProblemDescrip(tjog(,{e pec,FSAR,SER,GEDesign,Other):
Technical Specification 4.6.1.3.d.2 requires verifying seal air flask pressure to be greater than or equal to 60 psig.
Technical Specification 4.6.1.3.d.3[e/.6.2.3./
requires v.erifying that the system pressure does not decay more than 2 psig from.90 psig within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.
Based on this allowable pressure decay rate, the seal air flask pressure should be changed from 60 psig to a value at least 30 psig above the minimum required inflatable seal pressure.
This will ensure adequate inflatable seal pressure for at least 30 days with no air supply.
2.
Safety Significance:
None.
This change will ensure sufficient seal air flask pressure to maintain inflatable seal pressure above the minimum required value.
3.
Anticipated Resolution:
Perform an evjly*f'13 'd 2 should[be changed and to wha atgt Specification 4....g jetermine if the 60 psig value in Technical results of that eva'luation, recommend appropriate changes to Ihe Technical Specifications.
~
4 NRC Response to item (NRR/IE):
NRC Notified:
/
Individual Notified Date Time hY \\
M k(, umE k ACC h D/C ?> i4 (7WC 9, 8%'3) TTek @j iME Tm s..v. n u r u
, r m c.<
ie n, c A r n r,uw wc 04cswa :
w.c a s o u rc w c la u n
. cn e vin.
ec O E D4 C. iN C;C ($f6 t /CC)All,,(.'U(Opsq M//O ps t3)
(9.bc w n me Lco 3.<...t/s/s 6 a.3, s
C :s Nenc s n t s (.. w e <.r,w /u A M ce. Ac a WN' M.T tM
,; ;,(( J. J (.x L D E C ( Llsj.'. i L 0 7.
Id f'O. A TC t 7
..x
...,,n w.
t.
TECP.tICAL SPECIFICATION PROELEM SHEET j
j Ite,tiumoer:
306 Priority:
15 i
~
Val tialafew
/3-21-84 l
Ioentified By Date Responsible Supervisor Tech Spec
Reference:
Taole 3.6.4-1 l
Tech Spec Pag;: 3/4 6-27 to 6-44 Problem
Title:
Containment and Drywell Isolatien Valves 1.
ProblemDescription(TechSpec,FSAR,SER,GEDesign,Other):
l; i
Table 3.6.4-1 does not pr,esently include combustable gas control system valves l
E61-F002A & B; F004A & B;. and the upper conta'inment pool drain system valve G41'-5_265. -
I o
Also, yalv'es G33-F00'1, F004, F250',"and F251 '(RWCU pump suction ' alves) v apparently have a GE requirement(30 seconds) concerning valve isolation time used in the analyses of potential offsite releases.
1
~
MP&L, in a letter frem Mr. L. F. Dale to Mr. H. R. Denton, dated August 29, 1983,(AECH-83/0492), requested the maximum isolation times for these valves i,
'.be changed from the present 30 seconds to 42 seconds..
t i
2.
Safety Significance:
i There is no safety significance concerning the valve omission, since valves l
E61-F002A &'B and F004A & B are governed by the more restrictive requirements
]
of Technical S'pecification 3/4.6.5. Valve G41-F265 is operated only during a refueling outage, and if inadvertently left open, the resultant l'eakage into a
the drywell would be detected by the drywell leakage detection system.
However, if the specified closing times for the RWCU pump suction valves are l
'not within the GE analytical limits, this may ' result in a radiological release l
)
following a RWCU pipe break in excess of previously analyzed releases, j
d#k
[FSOC q#S E l N84 467724
- d IIl-O
- d 3 /O 'b'f
- A k (T 'I, 3 N 3 m., n u uca 1.u.<n. a.a m
~.a. ~ r.c :
i
(' Im g,.
g' l* k c.
WW I.N C. L L D L l')
lC 'I (4 lL
..lkHtTTAL Cd i
{
G C t jo icf r At tTt u Allt. Il H&s Mehl 4'D( At (LCisN6 MM j
Mde, AcacNrs, nam,m we..
AeAe n.4'[c,,18'[/2%,g.,4c,yg,'.j g
l 4.....:sm.m.,o(
nie me.o n., <,a A ui.-n err ( f g p,j,
l
,c j
t i
7
.....-__..-...__.s
.s-o MpMOR @ UM OF CALL Previeve estions vesbie M
O vou weaE c4LLeo av-Z vouweas visitio av-lu or,or aiseteoas i
PLEASE' PHONE >
0 ris O'utovon a
WILL CALL AGAIN l$ WAltlNG To SEE You O cirua~eo voua c4LL wisn'esa" 4aroi~ruc~r MESSAGE
~ w l
A~-p ~
RECElvtD gY DATE T4ME
..~,...
- 4..
o v..
............mn.,
v;;lggiy,,25t.i_ii.
I Q/
Q c *{ W' 1 : W
~ - * ~ ~
Page 1
\\
CCNS TEC!! SPEC CHANCE LISTING (PRIORIIT 1)
- cr.chlis t Tech Date Schedule feWr Priority Spee No Submitted Item No Date Description // Remarks 001 1E 3/4.5.1 540320 01 Current requirement is 7 operable ADS valves; CNS has 8 JDS va ves, all or which should be operable. Change TS requirement.
005 IB 3/4.3.2 840320 02 Change TS to require at least one o3rable chanrel. for R14CU isolation en S1CS actuation. (Garrent IS requires none).
015 1B 3/4.3.2 840407 C4A Change serpoint to account for barometric pressure influences since contain art and dryweit differential g,ressure messererents are referenced to absolute pressure.
F 016 13 3/4.3.8 840407 04B Charige containment spray pressure actuation setpoints to conform to design specification.
933 13 3/4.3.8 840407 04C Cher.;;e containment spray timer setpoint and #11ow2ble value for consistency with design specification and instrument drift / accuracy assumptions.
034 In 3/4.3.8 84S329 03 Delete Item 1.c, RPV water level LLL Level 1 because it does not apply.
Increase Minimum Operable Channels for drywell & containment pressure instrumentation from 1 to 2.
076 15 3/4.3.3 830909 06 Change response time from 45 to 40 seconds for the LPCI mode of the RIIR A and B pumps.
078 IB 3/4.3.5 831011 01 Change Minimum Operable Channels for RCIC level 2 trip from 2 to 4 103 IB 3/4.3.2 840407 02 Change Minimum Operable Channels from 2 (with explanatory notes) to 8 channels per trip system for MSL flow-hi.
233 1B 3/4.5.1 840411 Resolve inconsistencies between minimum flow and head values in FSAR, Tech Spec, and SER for ECCS pumps. Change Tech Spec to include revised head
- values, p.
.g\\'
E 293 IB 3/4.6.1.3 840407 03 Revise 4.6.1.3.d.2 to require seal air flask pressure be maintained at
\\
greater than or equal to 30 psig above the seal pressure (Containment Air
'b Lock). li.e. 90 psig]
g ['/
- W M
1.-
a %. s u... w_s _., %. -
t i
P 3:
j 4-Pagt 2~
h CCNS TECH SPEC CHANCE LISTING (PRIORITY 1)
I h
1 j
Punchlist Tech Date Schedule I
Kumber Priority Spec No Subefreed 3.en No Date Description // Remarks 293 IB 3/4.6.2.4 840407 03 Revise 4.6.2.3 to require verification that the seal air flask pressure be maintained at greater than or equal to 30 psig above the seal pressure
-(Drywell Air Lock). (i.e. 90 psig]
i
{
306 IB 3/4.6.4 840410 Add five drywell isolation valves to valve table.
[
s 308 IB 3.4.3.2 840410 Change the equipment area Temperature - High setpoint values listed in Table h
3.3.2-2 as required. (Setpoints being changed are generally lowered by j,
about 4').
t 2
3 021 1C 3/4.7.4 840329 01 Snubber addition.
I L r.
i 037 1C 3/4.3.2 831214 Change calibration freq for Riley temperature monitors (from 18 months to 12 months) and Rosemount trip units (add a new monthly trip unit calibration requirement) for consistency within Tech Specs and to comply with vendor recommendation.
038 1C 3/4.3.7'.1 840407 01A Change enlibration frequency for the Carbon Bed Vault Radiatien Monitor and other radiation monitors from 18 months to 12 months to acet vendor I
recommendations.
f' 139 IC 3/4.7.4 831007 01 Snubber additions.// Item originally submitted as Item 31 of 9/9/83
,l[
l' submittal, withdrawn by 9/28/83 letter and resubmitted with corrections, i-t t-l 198 1C 3/4.3.7.1 840329 02 Make Minimum Operable Channels consistent for items 6, 7, 8, and 9 on Table i
3.3.7.1-1.
Revise action statements to include trip system terminology.
213 1C 3/4.3.3 840329 04 Change Items A.2.g and B.2.f. in Table 3.3.3-1 to "2/ trip system" instead of "1/ valve" under Minimum Operable Channels for ECCS manual initiation logic for the ADS System.
262 1C 3/4.3.7.12 840407 01B Add standby Cas Treatment ef fluent monitoring instrumentation to 3.3.7.12 I
with applicability to Mode 1, 2, and "*"; add "*" to 3.3.7.5 whenever the
[;
SBCT system is in operation and provide necessary action statements.
L I
i f-
..m
.w
- ==
J
.. c..
coa _, _.s.R; w 1.
_..-m.,
.t
'j._~.. +
A.
Paga 3 '
.}-
CCNS TECH SPEC CHANGE LISTING (PRIORITY 1)
- 1. :
I g
TcFlist Tech.
Datel
-Schedule j
q' cher ;. Priority Socc No - SuLeitted Ites No' Date Description // Remarks
- i
's s
T 285-'
1C '
3/p.3.7.8, 840329 05,
V, frequency from 18 months to 6 months to conform with R.C..l.95, Rev.,1.
Revise Specification 4.3.7.8 to change chlorine detection calibration.
329 1C' 3/4.3.7.5 840410 Change IS to require operability in specific operating conditions _ for each g
monitor.,rather than a b1c.nket requirement' for modes,1 and 2.
.i
~I
,t i t
i,
[:
2.:
f s
e.
~
s el
- /
"A,
'.s]
~
fh
,a 0
n
?!.
4 -
i 4
- E.
g t
i.
i.
k:
i:
i 3?
p
,4
?
t,
} '.
i; L'
- i l-lj G
k.
Ei
( ',
{l if sf J.
j!
.--.g