ML19322A440
| ML19322A440 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/20/1977 |
| From: | Colitz J METROPOLITAN EDISON CO. |
| To: | |
| References | |
| NUDOCS 7910250576 | |
| Download: ML19322A440 (1) | |
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METRO?OLITAN EDISON COMPANY. sw c.ure crww.m= ummes-4re r,
POST OFFICE GOX 460 A88COLETOWN PENNSYLVANtA 17057
~ TELEPHONE 717 9 54 4CM1 Farch 20,1977 D@@M O
Pr. J. P. O' Reilly Directorate or Peculate y OperationJ_...
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3 Nuclear Fegalatory Comission 631 Park Avenue King of Prussia,.Eas:nsylvania 19406 Cberatina 1.icense DPP.-50 Docket 50-289 Subiect: Feoortable Occurrence fb. 77-05/4P Cear Mr. O'Fe111y:
This telegra' is to confirn the telecon between Mr. A. N. Fasano (Region I - TAC) and Pr. G. A. Kunder (T'il-1 Svoervisor of Operations) at 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br /> on 20 Parch 1977.
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A violation of the Environmental Technical Specification ~ 2.1.b(2) occurred in that during the Routine Peactor Plant Cooldewn on 03/19/77, the river water differential te perature was chanced by rore than 20 in any cne hour.
0 The river water 6 was beino raintained at 0 F t;o to the tire the Decay Feat Penoval Syster. was olated inservice at 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br />. As the Decay Fest Femval System was placed in service the river water discharge tero-erature began to increase causing an increase in the river water 6.
Since the Pechanical Craft Cooling Tower was operating at its full available '
capacity, i rediate steos were taken to reduce the Cecay Feat Fenoval beat load which in turn decreased the river water IT rate of chance. The 0
river water 6 rate of change reached a rtaxirm of 3.5 F/hr. which exceeded the specification.
The incident will be revie%ed and the results of the evaluation and any corrective action taken will be reported in the 14 day recort.
Very truly yours, G G 64{
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(J. 'J. Coli tt Unit I Sucerintendent Three Mile Island t;uclear Station JJC:11r 7910250 3'7 ol $