ML19327A090
| ML19327A090 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 07/21/1980 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-17, NUDOCS 8008010145 | |
| Download: ML19327A090 (3) | |
Text
.
W%
PHILADELPHI A ELECTRIC COM PANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 sMIELos L DALTROFF stac'inic[no$ ion July 21, 1980 Re: Docket Nos. 50-277 50-278 IE Bulletin 80-17 Mr. Boyce H.
Grier, Director Office of Inspection & Enforcement Region I US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406
Dear Mr. Grier:
This letter is in response to IE Bulletin 80-17, forwarded to us on July 3, 1980, concerning the failure of 76 of 185 control rods to fully insert during a scram at a BWR.
This response addresses item 4.
The " Action to be Taken by Licensees" and our response follows.
Acti.on t o_ b e T a k_e n_ b y_ L i_c e n s_e.e_s 4.
'Jithin 10 days, complete a review of emergency operating procedures by the licensee and the NSSS vendor to assure that, for scram, operator actions include:
a)
Place the reactor mode switch in a position other than RUN.
b)
Determine whether either of the two conditions below exist:
(1)
Five (5) or more adjacent rods not inserted below the 06 position.
(2)
Thirty (30) or more rods not inserted below the 06 position.
8 0 0 8_01.ofj/f
Lf-Mr. Boyco, H. Grior,; Director Page 2 c)
If eithe,r condition 4.b.(1) or 4.b.(2) exists:
(1)
Trip the recirculation pumps.
ii
-(2)
Insert rods manually.
If rods cannot be inserted manually, alternately reset the RPS and scram the i
reactor-until all rods are fully inserted.
i~
(3)
'(4)
Manually open or bypass the scram instrument volume i
drain ~and vent valves,'if possible.
.d)
If,'at any time, either. condition 4.b.(1) or 4.b.(2)
. exists and either.RPV water level cannot be maintained or suppression pool water temperature cannot be maintained below the suppression pool water temperature scram limit, initiate the SLCS.
4 e)
Review the Browns Ferry occurrence with all licensed operators'and train-them in the procedures to recognize and mitigate the event.
Verify that preliminary training of operators is completed within 10 days of the i
date of this Bulletin and that full training is completed within 30 days of the date of this Bulletin.
Response
A review of emergency operating procedures has been completed to assure that the requirements in items 4.a throu8h 4.d are j
included in the procedures.
The following procedures have been revised to comply with these requirements.
1.
S.3.6.B
. Initiation of the Standby Liquid Control System f
a l
2.
GP-4 Scram i;
3.
GP-6 Group I (MSIV) Isolation with Scram.
The 10 day preliminary training requirements in item 4.e concerning the Browns Ferry occurrence have been coupleted.
The full' training is scheduled to be completed by August 1, 1980.
Very truly yours,
,s
/
f/
) w. Al l L ",a,yl -
.f
- cc:.US Nuclear Regulatory' Commission Of fice-of Inspection & Enforcement Division of Reactor Operations Inspection Washington, DC.20555 P
c-( --
COMMONWEALTIl 0F PENNSYLVANIA :
ss.
COUNTY OF PHILADELPHIA
~
S.:L. Daltroff, being first duly sworn, deposes and says:
That'he is Vice President of Philadelphia Electric Company; that he has read the foregoing response to IE Bulletin 80-17 and knows the contents thereof; and that the statements and matters set forth therein are true and correct to the best of his knowledge, information and belief.
j/
7, 1f Mg -_..
Subscribed and sworn to before me this.$ s r day of Juwy,1980
_.. N o t a r y M'u bli e t;:t:5PM:.MM'3 M##I* k u, i;r ~ *.sa.~. Ls ?'a < ** 4
- h U?3-L: