ML20085E621
| ML20085E621 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 02/04/1976 |
| From: | Bixel D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| LER-ER-76-002, LER-ER-76-2, NUDOCS 8308150441 | |
| Download: ML20085E621 (2) | |
Text
]
bSEE EVENT REPORT O
Palisades CONTROL 8 LOCK:l l
l l
l l
l (PLEASE PRINT ALL REGUIRED INFORMATION) 1 8
NAME UCENSE NUMBER PE TT O1 l Ml Il Pl A l L l Il l0 l0 l-l 0l 0l0 l 0 l 0l_l 0l0 l l hl 1l 1l1l 1l l0l3l 7 89 14 15 25 26 3C' 31 32 l
NE DOCKET NUMdER EVENT DATE REPCRT DATE TYPE O 1 CON'T l l
l M
(,L_l l0 l 5 l 01-l 0 l2 l 5 l Sl l 0l1 l1l 6l Tl 6l l 0l 2l0 l hl7 l 6l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION 95 l Durine testine the RPS switch as found setting of PS180h was out of calibration j
7 89 80 Q l by + 0.2 psi.
SIS switch as found settings of PS1801A (right) and PS1803A (left l
7 89 80 EE l and right) were out of calibration by -0.05 nsi.
SIS switch PS180hA (left) was l
7 89 80 M l found with intermittent contacts (microswitch). The set noint changes reuresent l
7 89 80 HE l changes of from 1 to h%.
All set noints vere ad.1usted and microsvitch renlaced.
l
.S'E Co"cE CouPoNENT CCCE ACTU U VOLATON e I Il A l IE l lIl Nl S IT l R lU I W
lUl0l7l5l lYl l
7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION DE l There are a total of 8 containment pressure switches manufactured by United l
7 89 80 0
-l v, actric. 9eM es 900. Model J 702-553.
Each PS has two switches with individually l 7 89 80 Q l ad.1usted set points. The one microsvitch replaced was P/N BZR814-A2. The l
FAtluTY METHOO OF STATUS
% POWER OTHER STATUS DISCOVERY CisCOVERY CESCAFTON LeJ l Ol al 01 I UA I
Lt.J l
NA I
1 7 8 9
10 12 13 44 45 46 80 RELE SED OF REL AMOUNT CF ACTMTV LOCATON OF AELEASE E5 lZl
[Zj SE l NA l
l NA l
l 7 8 9
10 11 44 45 80
)
PERSONNEL EXPOSURES NUMBER TYPE CESCRIPTON l
DE 1010101 LZJ l
NA l-7 89 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTON l 0l 0l 0 [
l NA 1
l 7 89 11 12 So PROBABLE CONSEQUENCES
]E l Since other settings were found satisfactory, this vould not have lead to improper l 7 89 initiating.
So LOSS OR OAMAGE TO FAC!UTY TYPE DESCAPTCN
@Wl UA l
7 88 18 8308150441 760204 80 PUBLICITY PDR ADOCK 05000255 6
H l NA PDR l
7 89 80 ADDITIONAL FACTORS 3l (Cause Description Contd) application of these switches is well within their l
/ 89 80 DE l specified capabilities. Additional testing vill be performed to determine l
7 89 further action.
80
O O
x General Offices: 212 West Micmgan Avenue Jackson, Michigan 49201. Area Code S17 788 0550 February 5, 1976
- si %g 4
s Mr James G. Keppler i
I pg2I/Q Office of Inspection Enforcement 7,
g Region III US Nuclear Regulatory Co= mission T99 Roosevelt Road Gut N
S Glen Ellyn, IL 60137
\\
DOCKET 50-255, LICENSE DPR 2 PALISADES PLANT, ER-76-02 FPS / SIS - PS OUT CF CALIBRATION Attached is a reportable occurrence which relates to the Palisades Plant. This occurrence has been classified as a reactor protection system or engineeged safety feature instrument setting which was found to be less conservative ~
than those established by the Technical Specifications but which do not prevent the fulfillment of the functional requirements of the affected system.
/v f~ '
f V
~
.v C David A. Bixel Assistant Nuclear Licensing Administrator CC:
File 1466 ya ce, e