ML17053A807
| ML17053A807 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 06/19/1979 |
| From: | Ippolito T Office of Nuclear Reactor Regulation |
| To: | Dise D NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML17053A808 | List: |
| References | |
| NUDOCS 7907180401 | |
| Download: ML17053A807 (4) | |
Text
0
. APP Docket No. 50-220 Nr. Donald P. Disc Vice President - Engineering Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202
~
Dear Nr. Disc:
A copy of our evaluation addressing this matter is enclosed.
Sincerely, Q.v~~
~
~
~
Thomas A. Ippolito, Chief Operating Reactors Branch g3 Division of Operating Reactors DISTRIBUTION:
~ocket RB83 Rdg RR Rdg VNoonan DEisenhut BGrimes RVolibmer TJCarter WRussell OELD OI&E '(3)
TIppol ito PPolk
/
SSheppard
. JRBuchanan TERA The Commission has evaluated your response k&Zn@4htion and Enforcement Bulletin 79-07 as it affects the Nine Nile Point Unit.l Nuclear Power Plant.
Bulletin 79-07 requested the identification of system designs for which an incorrect piping design code was utilized.
By letters dated April 25, 1979 and June 12, 1979 you provided the documentation which identified the extent of the problem as well as the details of the reanalysis effort.
We have concluded that the requi rements of Bulletin 79-07. have been 'adequately satisfied to allow resumption of power operation.
This is based on the fact that the reanalysis was conducted using computer programs.expl'oying accept-able seismic response combination techniques, and that the results of:the reanalysis have been within the allowable lin>its.
Please note that a final finding of compliance with the provisions of Bulleti'n 79-07'will,require ccmpletion of computer code verification.
By letter dated June 13, 1979 you committed to providing the necessary information for this effort.
I
Enclosure:
Evaluation cc w/enclosure:
See next page POQV i80 4~t
- SEE PREVIOUS YELLOW FOR CONCURRENCES I
II orric43R ORBjt3 EB OURtlAME3H DAT43R
",.I'.I'.pl.k.get... "...~VNoqnap.
6/15/7)......, 6/15/79 NEC PORN 318 (9.76) NRCM 0240 AD/E&P(DOR
+.BQr3JAN 15/79 DOR
.DE ut 6I'
~79 Q II O. OOVORHMONZ PRIHTIHO ORRICICI I ~ 'I ~
ROO
'I ~ O 83 TIpool ito 6/
'~
./79
,K
~ ~ ~ ~
~ ~ ~ ~ "Iqe ~ ~ ~ ~
'4s r
I'i Q /f f
,f
~
fi
- I If
~8 0
Docket No. 50-220 Nr. Donald P. Disc Vice President - Engineering Niagara fiohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202
Dear Hr. Disc:
Distribution Docket ORB II.3 NRR Reading Local PDR DEisenhut BGrimes RVollmer TJCarter WRussell ATty, OELD OIGE (3)
TIppolito PPolk SSheppard JRBuchanan TERA ACRS (16)
VHoonan The Commission has evaluated your response to Inspection and Enforcement Bulletin 79-07 as it affects the Nine Nile Point Unit 1 Nuclear Power Plant.
Bulletin 79-07 requested the identification of 'system designs for which an incorrect piping design code was utilized.
By letters dated April 25, 1979 and June 12, 1979 you provided the documentation which identified the extent of the problem as well as the details of the reanalysis effort.
We have concluded that the requirements of Bulletin 79-07 have been'dequately satisfied to a'11ow resumption of power operation..This is based on the fact that the reanlaysis was conducted using computor programs exploying accept-able seismic response combination techniques, and that the results of the reanalysis have been within the allowable limits.
Please note that final-ization of our evaluation pends completion of computer code verification.
By letter dated June 13, 1979 you committed to providing. the necessary information.
A copy of our evaluation addressing this matter is enclosed.
Sincerely, Enclos'ure:
Thomas A. Ippolito, Chief Operating Reactors Branch P3 Di ision of Operating Reactors orr<CR~
cc OURNAMK+e 1, DATC~
w/encl os ure:
-next-page""
J
~
~
ORB P
lk mjf
/)w~/79 EB VNoo a 6/
/7 iligri AD,'DOR
'bfi's'e'n'fiu't' 6I-77g--"
ORB 83
"'TI'ppoTTtb
~
~ ~ ~ 0 gf I II/79
= NRC 1IORM 518 (9.76) NRCM 0240 0 II,S, OOVICRNMCNT rRINllNO OrrICCI I ~ 'I ~
0 ~ I
'IO ~
4 N
r