ML19308A491
| ML19308A491 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/07/1974 |
| From: | Herbein J METROPOLITAN EDISON CO. |
| To: | |
| References | |
| NUDOCS 7910250680 | |
| Download: ML19308A491 (1) | |
Text
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,utmoPoum) ED150 CClaPM4Y wwarmorcunsu01c urwascov 3STCFFICE SCX 460 M50DLETOWf4, PEP 4t4SYLVAfilA 17057 TELEPHONE 717-944 4Cm June 7,1974 Pr. J.P. O'9nilly, Birector Ofrectorate of Regulatorf Operations Region I 63? Park Avenue
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Klag of Pruss k, Pa l F 06 Operating Licczss DPR-50 Docket 50-289 Sctfoct: Abnorrai Occurrence !!o. AD 74-3 h
Dear Hr. O'Reilly:
h This telegran is to confim the telecon between L. Spessard (Regfon I-DP.0),
an6 5.G. Hubein (Till Superintendent) at 1030 HRS. June 7, l9N.
Violation of Technical Spectficattan 3.7.h?.h in that the nuclear overpower trip for channel B of the US was detemined to be set at a value greater than 55 The out of specification safety system setting, ddtemind to 6e 20%, resuitd frca an incorrect pain setting on the linear arpIfffets en channet B.
Channels A, C and D were not affected by this setting.
The three unaffected channels were checked for the correct s~;oiifier t.nd Mstable sett}ngs. The cain setting for channel B y;ts returned to the correct setting and the over pr.9 trip for channe) 8 was tested to verlfy that the trip setpoint was less than 5%.
'Jery truly
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.G. derbein Station Superktendent M Nucicar Stction
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