ML19322A430

Abnormal Occurrence 76-6/1P on 760204:radiation Leak Detection Sys Out of Svc for 22-h.No Reactor Bldg Atmospheric Samples Taken.Caused by Cover Plate to Monitor Left Open Following Insp.Procedures Reviewed W/Personnel

ML19322A430
Person / Time
Site:	Crane
Issue date:	02/05/1976
From:	Colitz J METROPOLITAN EDISON CO.
To:
References
NUDOCS 7910240867
Download: ML19322A430 (2)

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TROPOLITAN EDISON COMPANY suesmunior ar.ra.:t puevc unurics ccvva.um.-

FriC OOX 480 MID D L ETOW N. PENNSYLV ANI A 17C57 TELF. PHONE 717 5M4 4C 1 DIo D)

Oy 5 February 1976 0 '9~I m

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Mr. J. P. O'Reilly

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Directorate of Regulatory Op2 rations Region I 631 Park Avenue King of Prussia, Penna.

19405 Operating License DPR-50 Docket 50-289 SUDJECT:

Reportable Occurrence f;o. AD 76-6/IP De.se Mr. O'Reilly:

This telegram is to confim the telecon between Mr. Lee Spessard (Region I-N.C) anc Mr. J. J. Colitz (TMI-1, Superintendent) at 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> en 5 Februcry 1976.

The folicwing report is submitted in accordance with Paragraph 6.7.2.a.1 (page 6-11) of the Technical Specifications.

Between the hcurs of OlC3 and 2303 on 4 Februs y 1976, a Le:k Detection System based on sen.itivity to radioactivity ws not ir.

service n;r were sa.7ples of the Reactor Building At~,oran2re ta<en and analyzed as reauired by Paragraph 3.i.6.7 of Aopendix "A" cf the Technical Specifications.

At 0103 hours0.00119 days <br />0.0286 hours <br />1.703042e-4 weeks <br />3.91915e-5 months <br /> on 4 February 1975 an insnec-tior. was r,ade of the novina filter caper in the particulate ronitor of the Reacter Building Au osphere Monitor (RM-A2).

Upon craletion of the inspection, the ccver plate en the particulate monitor was lef t afar, allowing outsidt air rather than Reacto-Suilding air to be drawn through tne panitor.

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!!r. J. P. O'Relliy 5 February 1975 At 2300 hours0.0266 days <br />0.639 hours <br />0.0038 weeks <br />8.7515e-4 months <br /> on 4 February 1976 the particulate mnitor cover plate was fcur.d to be out of post tion and was replaced, thereby sealine the sample line.

Long tern corrective action will include procedural cuidance for it:e re'. oval and replacteent of the particulate :r.onitor cover plate and

.:etncds to detemine ttle effectiveness of the cover plate seal.

Very truly yours.

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. J. Colitz Unit 1 Superintendent Three Mile Island fluclear Station JJC/lca T P ]D

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