05000366/LER-1978-096, /01T-0 on 790303:HPCI Turbine Exhaust Diaphragm Pressure Instruments 2E41-N012A-D Found Calibrated W/Head Correction Making Setpoint Exceed Tech Specs Limit.Caused by Possible Procedure Error Noted When LER 78-096 Submitted

/01T-0 on 790303:HPCI Turbine Exhaust Diaphragm Pressure Instruments 2E41-N012A-D Found Calibrated W/Head Correction Making Setpoint Exceed Tech Specs Limit.Caused by Possible Procedure Error Noted When LER 78-096 Submitted

ML19282B963
Person / Time
Site:	Hatch
Issue date:	03/09/1979
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19282B962	List: 05000366/LER-1978-096, /01T-0 on 790303:HPCI Turbine Exhaust Diaphragm Pressure Instruments 2E41-N012A-D Found Calibrated W/Head Correction Making Setpoint Exceed Tech Specs Limit.Caused by Possible Procedure Error Noted When LER 78-096 Submitted 05000366/LER-1979-028, Forwards LER 79-028/01T-0
References
LER-79-028-01T, LER-79-28-1T, NUDOCS 7903190172
Download: ML19282B963 (2)

LER-1978-096, /01T-0 on 790303:HPCI Turbine Exhaust Diaphragm Pressure Instruments 2E41-N012A-D Found Calibrated W/Head Correction Making Setpoint Exceed Tech Specs Limit.Caused by Possible Procedure Error Noted When LER 78-096 Submitted

Event date:
Report date:
3661978096R00 - NRC Website

text

'

I LICENSEE EVENT REPORT cOs Taoa atoce [

]

l l _]

l l@

(Ptt Ast PnmT OR WPE ALL HEOUlHLO WFORNi, MOW i

O LchbWJxLdOLdo 10 Ohldo_Lo I o I O I O JCl4 I i I 1_D I 1 IGL_LJ G 8

')

Li.,EN'.LL LUNL 14 I 's L lL L '< '.L hl V.5 L H h

.u L6C L t. t 1)FL JJ 51 LAI *6 e

'T 2

[E W@l 0 l 5 l Ol 01 Gl 3! d 6@0 l 3 [0_[1 l 7 l 9 }@l 0 l 1 l0l4l7j(Lj@

8 OJ ta l DOO L T P.U*.'u t.g

..d t, J EVENT DATE 14 la HLFJH T DAIE tJ EVE rJT DESCnirTION, NO PnOB AnLE CONSECUE NCES h yl Durine, shutdown and while perf orming su rv e i llanc e it was discovered that IIPCI l

l turbine exhaust diaphragn pressure instruments 2E41-N012A-D vere calibrated with g[

l gl a head correction of 13.8 ps!g. These instruments are on a dry line and should not j

have a head eOrrection. This nade the setpoint 21.8 psig which exceeds the l

gl yl Technical Specification of < = 10 psig (Tabic 3.3. 2-2-4c). These instruments were j

gl recalibrated to the correct p r e ssu r e. There was nO affect on Public Ilealth and l

lg i safety.

l 60 8' 9 SYST E '.1 CAUSC C AL.S E COYP.

VALVE COCE CODE SU9CCOE CC'?FONENT CODE SUSCODE SUCCCCE E

Ic E]g jojg zlg j zl zl zl zi zj zjg ; z jg j z[g 8

9 10 11 12 13 la is 20 SEQUE NT I A.

OCCURRENCE REFORT REVISION

_ EVENT YE AR REFOHT N O.

CODE TYPE NO.

O,"L E R /ROI 71 91 l-J l 0l 21 s]

I/I I 01 1 I ITI l---J LOJ U.La '

r 21 2.'

23 24 16 27 2d 2')

Jo 31

2 ACTION FUTURE EFFECT SHUTD0?.N ATT AC H*? E N T

• Pi' D.4 PGl'.t E COYo.

CO'.' PON E N T 4

TAKEN AC i l ON ON PLANT f.' E T H C D HOURS a

S uis*. tit T ED F O i

• dUS.

St.,F P L I E R Y A'.L:F AC Tyr E R lG l @ l Zl h l3S zlh l Zlh l 0l 0l Ol Ol W@

'; l@

l Sl@

lZl9]919l@

JJ 34 36 31 40 41 42 43 44 47 CAUSE DESCHIPTION AND CORRECTIVE ACTIONS h W l A pr sibic prec edure error v.za s not ed at the the 1.i'? 7 8-096 *n s su b,i t t ed. A proar,, 1 E L ras initiated to reviev n11 instrur.ent s t er errerr er the tre tv,e. m s., r,, n i,,.,, c e l Q l procedure ll5P-2-1109. was revised and the instrument c alibra tion wa s corr ec t ed ciuri ~ l l

Cl nornal surveillance.

I El 80 8 9 F ACittTV VE THOD CF STA1US

'6 POV.E R OTHE R STATUS DisCOV E HY DISCOVERY DESCHIPTION

';A l

lB l@l Siirveillance Testine l

[ gj h l 0l 01 0]hl 5

8 9 10 12 13 44 45 46 80 AC Tivt1 Y CONTENT

$<C LE ASE D OF PELE ASE AVOUNT OF ACTivlTY LOCATION OF RE LEASE - '

x^

l I

n^

l El L7J @ Ld8 8 9 10 11 44 4b 60 PCRSONNE L E XPO%nE S NU*.'B E A TYPE DESCRIPTIO*d l

10I o O_j@l zl@l NA 7

80 8,9 11 12 13 PEIISONNEL INJUHf ES P.U. P E H DE' HiPTiON O LOJ_'*0J_0J 81 l

na fJ d 9 11 1.'

L O 6 0 F C#' t, e t:t fit i A CIL t f Y f4FL t H '.Lin P l u iN

- l E LrJ@l x^

t.. }

en 'i

!)

Il l. ( ' t f' 41

'e

] h l. L_. _. _ _.

m

_..]

l : LLI !.I 1 J L.!J 7 9 0 319 0 rt 2_

oi.)'i,7_7;si n

T. um Pno,o wa o, phi ram n -

httpet illl Cit lellt.

( 11

'!.1111 ! U II lile e g

NARRATIVE

REPORT LER 7 9-28 With the unit in cold shutdown during the perf ormance of IC:p-2-3309, !!PCI Turbine Exhaust Diaghran Pressure Ff6C, pressure instrument s 2E41-5012A-D were discovered to be calibrated with a head correction of 13.8 psig.

These instruments are on a dry leg and should not be corrected for head pressure. As a result of this error the as f ound setpoint was 21.8 psig which exceeds the Technical Specification of <10 psig (Table 3.3.2.2-4c).

i A possibic procedure error was noted at the Line LER 78-096 was submitted.

A progran was initiated to review all instruments for errors of the same type.

The surveillance procedure, HNP-2-3309, was revised aid the instrument cali-j bration was corrected durin:; normal surveillance. The instruments were Barksdale pressure switches. The calibration procedure, IINP-2-5279, was also revised to correct the setpoint. There was no eff ec t on public health and saf et y.

I l