ML042990200
| ML042990200 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 03/23/2003 |
| From: | - No Known Affiliation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2003-0224 CR 03-02317 | |
| Download: ML042990200 (1) | |
Text
NOP-LP-2001-01 Davis-Besse CONDITION REPORT lR Number1 TITLE: P36-2 UPPER COUPLING SPACER FASTNERS MISSING HOLE LOCATION MARKING.
DICVR AElTM VENT DATE l NTIM SYSTEM I ASST 3/23120 l
NA 31.2312003 l
NA 064-03 P36-2 EQUIPMENT DESCRIPTION Reaclor Coolant Pump 1.
1.2 DESCRIPTION
OF CONDITION and PROBABLE CAUSE (If known) Summarize any attachments. IdentIfywhat, when, where, why, how.
The upper coupling spacer stud and nuts do not have obvious match marks. Also there are four 0
new studs and eight nuts to replace earlier identifed missing studs/nuts. Procedure DB-MM-09012, R
caution step 8.8.21 states the nuts and studs are a matched set and are to be installed In the proper hole. All studs/nuts in questions have been maintained together as a matched set but hole location G
Is unknown.
N A
T IMMEDIATE ACTIONS TAKEN ISUPV COMMENTS (Discuss CORRECTIVE ACTIONS completed, basis for closure.)
l Per Flowserve Engineering direction studs/nut to be dther and to a hle location.
o New studs/nuts to be located in coupling at equal distances with existing studs/nuts. Due to all N
coupling fastners being similar there Is no issue with balancing. New match markings will preclude any location Issues In the future.
QUALITY ORGANIZATION USE ONLY IDENTIFIED BY (Check one)
Q Self-Revealed ATTACHMENTS Quality Org. Initiated 0 Yes E
IndividualUtork Group I]
Internal Oversight Quality Org. Follow-up 1 Y:s 0 No 0 Supervision/Management 0
Extemal Oversight 0 Yes li No ORIGINATOR ORGANIZATION DATE SUPERVISOR l
DATE PHONE EXT.
SHALDA, R MAIN 312312003 SHALDA, R l 32312003 8110 SRO EQUIPMENT EVALUATION ORG..I IMMEDIATE
.RG.
MODE CHANGE P
REVIEW OPERABLE REQUIRED NOTIFIED INVESTIGATION REQUIRED NOTIFIED RESTRAINT L El Yes 1l No.
Yes E NO NIAO Yes 0 No DYes RNo Yes O
A MODE ASSOCIATED TECH SPEC NUMBER(S)
ASSOCIATED LCO ACTION STATEMENT(S)
N WOT=10XI!§X*4SPS t5-010~
o DECLARED INOPERABLE REPORTABLE?
one Hour NIA APPLICABLE UNIT(S)
(Date ITime)
DYes ONo F
.H4 E
N/A l
Eight Hour N/A 90 UI 0 U2 0 Both R
l
.IOEVnl ReqUlred FM 5? h
,eE4 3X A
COMMENTS T
Based on discussion with the CR originator, the procedural step In question, DB-MM-09012 step I
8.8.21, is a good practice. The studs/nuts which will be reinstalled on RCP 1-2 are all the same and o
there Is not a concern with balancing. The studstnuts are being etched so the match marking will be N
performed in accordance with the procedure going forward. Since this Is a procedural compliance S
issue with no Impact on RCP 1-2 performance, Operable marked "N/A".
Current Mode - Unit i Power Level - Unit tI Current Mode - Unit 2 Power Level. Unit 2 5
l 0
l NA I
N/A SRO*UNIT I SRO - UNIT 2 DATE Cobbledick. T l Burk. R 3123/2003 Page 33 of 107