ML19290B908
| ML19290B908 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 12/09/1979 |
| From: | Burstein S WISCONSIN ELECTRIC POWER CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7912140422 | |
| Download: ML19290B908 (5) | |
Text
NRC PORM 363 U.S. NUCLEAR REGULATORY CCMMISSJON tr.m LICENSEE EVENT REPORT CONTROL 8 LOCK: l l
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60 63 OCCEET NUMSER 64 69 EVENT OATE 74 75 REPCAT CATE 80 EVENT DESCRIPTION AND PROBABLE CONSECUENCES h Channni
'R' rod block 0
2 I nurinn nnwer ascensinn fnlinwinn a roactnr ceram.
I monitor (RBM) failed 'inop' causing a control rod block. The block occo -
I O 2 I rred intermittently depending on the control rod selected. Channel
'A' I
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RT 1 LRBM was verified to be operable by performir.a surveillance test orocedu i
ITTI I re 42C002. After verifvino Channel
'A' enprability. Channel
'R' PRM was I
o17 I bvoassed as necessarv to cernit control rod withdrawal. Sep TS 3.7 C.?_
l i TS Table 3.2-C. and Note No.1 in +be notes for Tahlo 3_ ? r_
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41 22 CAUSE DESCRIPTION AND CORRECTIVE ACTICNS h iio I Channel 'B' RBM failed 'innn' dua to a driftod enunt trin lovnl sotnnint i
Li_j_i j i _ The count trin level sotnnint wac adjnetod and wrvnillanco tnet 1
1 procedure 42C002 was performed to verify Channel 'B' RBM operability.
I i i2 The count trip level adiustment was completed on 11-13-79.
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