05000346/LER-1979-115-03, /03L-0:on 791122,remote Contact Data Typer Became Inoperable.Caused by Procedural Deficiency.Surveillance Requirements Inadequately Specified on Log Sheet.Log Sheet Will Be Modified to Specify Tech Spec Requirements

/03L-0:on 791122,remote Contact Data Typer Became Inoperable.Caused by Procedural Deficiency.Surveillance Requirements Inadequately Specified on Log Sheet.Log Sheet Will Be Modified to Specify Tech Spec Requirements

ML19256G088
Person / Time
Site:	Davis Besse
Issue date:	12/20/1979
From:	Rohrer E TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19256G083	List: 05000346/LER-1979-115, Forwards LER 79-115/03L-0 05000346/LER-1979-115-03, /03L-0:on 791122,remote Contact Data Typer Became Inoperable.Caused by Procedural Deficiency.Surveillance Requirements Inadequately Specified on Log Sheet.Log Sheet Will Be Modified to Specify Tech Spec Requirements
References
LER-79-115-03L, LER-79-115-3L, NUDOCS 7912270407
Download: ML19256G088 (2)

LER-1979-115, /03L-0:on 791122,remote Contact Data Typer Became Inoperable.Caused by Procedural Deficiency.Surveillance Requirements Inadequately Specified on Log Sheet.Log Sheet Will Be Modified to Specify Tech Spec Requirements

Event date:
Report date:
3461979115R03 - NRC Website

text

U. S. NUCLEAR HE GULATORY cOM*.ilSSION NRC F oRM 366 U 778 LICENSEE EVENT REPORT

~ CONTROL DLOCK: l l

l l

l l

l (PLEASE PRINT Ofi TYPE ALL REQUIRED INFORMATIONI 1

6 lo l1l l 0l Hl Dj Bl 5 1 @l 0 } 0 l -l 0 0l N l P \\ F l - l 0 l 3 l@ 4 l 1 l 1 l 1 l 1 j@l l

l@

7 8 9 LICCaLE CODE 14 15 LIC E NSE NU'/d EH

.' 3 26 LICEN3t 1 T FE JJ 5 7 L A I $d COTT lLl@0 5 ] 0l - l 0 l 3 l 4 l 6 l@l 1 ] 1 l 2. l 2 l 7 l 9 l@l l l 2 l 2 [ 0l 7 l 9 l@

0 i

7 8

00 61 DCCKET NU'/d ER 63 b3 EVENT DATE 74 73 REPORT DAT E b0 EVENT DESCRIPTION AND PRO 3AULE CONSEQUENCES h [The re ote contact data typer became inoperable removing Control Room indication of j

o 2 l o j a l l fire alarms. An hourly fire watch was established to inspect all affected zones. The hourly fire watch was maintained until 0600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br /> when the operator assigned to observe jo ja j and ggj [the Fnergency Diesel Generator Rooms was performing another surveillance teet i ailed to perform the hourly fire watch. The fire watch was again performed at 0800 j

f o

e 0

7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />. There was no danger to the health and safety of the public or station personnel l.

The local fire' alarm pancis were operable if a fire had occurred.

(NP-33-79-134) o a

b) 7 8 9 SYSTEM CAUEE

CAUSE

C O*/ P.

VALVE CODE CODE SUSCODE CO*/PON ENT CODE SUBCODE SUSCOCE 1o191 1 Al Bl@ W@ W@ Iz 17 lz Iz Iz Iz l@

ZI@ W @

7 8

9 10 11 12 13 16 IJ 20 SE OUE N TI A L OCCU R R E NCE REPORT R E VISION EEH EO EVENT YE AR RE PORT NO.

CODE TYPE N O.

7 9l l-l 1l1 Sl M

lO!3l l Ll l-l J

@ gg; 21 21 23 24 26 27 23 W

30 31 31 ACTION FUTUPE EFFECT SHU T DO'/,N A TT ACH*? E N T N P R O-4 PRI'/E CT/P, COUDO*,f N T TAKEN ACTION ON PL ANT r.1E T H OD HOURS SUBvlT T ED F O R *A hU tl SUPPLI E R PJANUFACTUHEH I N I@Lc J@

LzJ@

LO@

l 01 01 01 1

IY @

lNl@

l2l@

l2lzlzlz @

34 J5 36 3/

40 41 42 43 44 47 33 CAUSE DESCRIPTION AND COHRECTIVE ACTIONS h jilol phe root cause of this occurrence is a procedural deficiency. The log sheet used by l

l i li j lthe operator did not adequately specify the surveillance requirements. The operator

[ believed the performance of the Diesel Fire Pump Surveillance Test was of higher prior-l 7

l1 13 l lity than the fire watch.

The applicable log sheet will be modified to specify the j

l l Technical Specification requirements.

i 4 83 7

8 9 ST

• ' POWE R OTHER ST A TUS ISCO Y

DISCOVEHY DESCRIPTION NA l

l B l@LN^

d @ l017l3l@l i

5 ACTIVITY CO TENT RELEASED OF RE LE ASE AYOUNT OF ACTIVITY LOCATION OF RELE ASE NA NA l

l1 lc j l Zl @ l Zj@l 7

8 9 10 11 44 45 80 PERSONNEL E XPOSURES NU'/BfR TYPE DE SCRIPT:ON 1 01 0 01@l zl@l NA i 7 80 7

8 9 11 12 13 PERSONNE L INJUHtES NU'?PE R

DESCRIPTION

i -

l010l0@l NA l

) L) [a

)((

[

80 7

8 9 11 12 l

( r f

LOSS CF 07 U AV AGE TO F ACILITY TYPE DE SCRIPTION l

li lu t I zi@l NA 30

. 9 o

PU R L ICI T Y NRC USE ONLY Q

NA l

ll l[l!li!l ll$

DESCRIPTION

ISSUE D@j 0

2 o e o os 7

a 2 io

{

419-259-5000 Ext. 267 Fd Rohrer PHON E :

NA*.1E OF PREP AREH

TOLEDO EDISON COMPANY DAVlS-BESSE NUCLEAR POWER STATION UNIT ONE SUPPLEMENTAL INFOR31ATION FOR LER NP-33-79-134 DATE OF EVENT: November 22, l'J79 FACILITY: Davis-Besse Unit 1 IDENTIFICATION OF OCCURRENCE: An operator assigned to perform a fire watch failed to perform two hourly observations of his zone Conditions Prior to Occurrence: The unit was in Mode 1, with Power (MWT) = 2023, and Load (Gross MNE) = 685.

Description of Occurrence: At 0001 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> on November 21, 1979, the remote contact data typer became inoperable, removing Control Room indication of fire alarms. To comply with the action statement of Technical Specification 3.3.3.8, an hourly fire watch was established to inspect all af fected zones. The hourly fire watch was main-tained until 0600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br /> when the operator assigned the fire watch in the Emergency Diesel Generator Rooms was performing a surveillance test on the Diesel Fire Pump, and failed to perform the hourly fire watch. The fire watch was again performed on the Emergency Diesel Generator Rooms at 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />.

Designation of Apparent Cause of Occurrence: The root cause of this occurrence is a procedural deficiency. The log sheet used by the operator in AD 1810.00, Fire Pro-tection Program, did not adequately specify the surveillance requirements. The opera-tor believed the performance of the Diesel Fire Pump Surveillance Test was of higher priority than the fire watch.

Analysis of Occurrence: There was no danger to the health and safety of the public or to station personnel. Only two inspections of one fire zone were not performed.

The local fire alarm panels were operable if a fire had occurred.

Corrective Action

The fire watch was re-established at 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br /> and maintained until the contact data typewriter was returned to operability at 1605 hours0.0186 days <br />0.446 hours <br />0.00265 weeks <br />6.107025e-4 months <br /> on Novem-ber 26, 1979.

The applicable log sheet in AD 1810.00 will be modified to specify the technical specification requirements.

Failure Data: There have been no previous failures to perform an established fire watch.

LER #79-115 1643 274