ML19282A779

Forwards LERs 79-013/03L-0,79-014/03L-0 & 79-012/03L-0

ML19282A779
Person / Time
Site:	Arkansas Nuclear
Issue date:	02/26/1979
From:	Rueter D ARKANSAS POWER & LIGHT CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19282A780	List: 05000368/LER-1979-012-03, /03L-0 on 790127:core Protection Computer Channel B Failed,Resulting in Trips.Caused by Analog High Level Amplifier Card Improperly Seating in Connector.Card Reseated & Functional Test Conducted 05000368/LER-1979-013-03, /03L-0 on 790127:control Element Assembly Cluster (Ceac) Deviation Alarms Received.Caused by Disturbance of Ceac Cable Connections 05000368/LER-1979-014-03, /03-0 on 790127:plant Protection Sys C Containment Bldg Pressure Transmitter 2PT-5603-3N Failed, Causing Hi & Hi-Hi Containment Pressure Trips.Caused by Loose Output Connection,Which Was Subsequently Reconnected ML19282A779
References
2-029-20, 2-29-20, NUDOCS 7903060479
Download: ML19282A779 (1)

Text

.

H E1 l'? F.

t)LJJ L ()

d

~1

.\\l ARKANSAS POWER S LIG HT COM P A NY P O GOX 551 LITTLE ACCK. AA< A*;SAS 7rOO3 * (501) 3 /1.1191 Feb ruary 20, 1979 OONALD A. AUETER DiHECTCn TECHN' CAL ANO f NVih0NMENT AL SLAviCES 2-029-20 Sir.

K. V. Seyfrit, Director Office of Inspection G Enforcement U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011

Subject:

Arkansas Nuclear One - Unit 2 Docket No. 50-368 License No. NPF-6 Reportable Occurrence Report Nos. 50-368/79-12, 50-30S/79-13 and 50-368/78-14 (File:

2-0520)

Gentlemen:

In accordance with Arkansas Nuclear One - Unit 2 Technical Specification 0.9.1.9, we have attached the subject reports concerning the inopera-bility of CEAC's,iue to spurious CEA position indication (79-12); the CPC channel "B" being declared inoperable and placed in bypass condition (79-13); and the Containment Building Pressure Channel being inoperable (79-14).

Very truly yours, l

s

• l R f

eit 4 Donald A. Ruete '

L' DAR:B1:vb Attachment ec:

Str. John G. Davis, Acting Director Sl r. h'. D. Johnson Office of Inspection S Enforcement U. S. Nuclear Regulatory U. S. Nuclear Regulatory Conuaission Concai s s ion Washington, D. C.

20555 P. O.

Box 2090 Russellville, Arkansas 72801 Str. Norman bl. Italler, Director Office of >!anagement and Program Analysis U. S. Nuclear Regulatory Commission Washington, D. C.

20555 TAX P A YIN G INVESTOR OWNE O MEMOEM Yi L O L L JO sTH U T IU T C G Y GT EM 790306o4,9