05000305/LER-1981-017-03, /03L-0:on 810515,discovered That High Pressure Reactor Trip Setpoints for Pressure Transmitters Were Higher than Tech Spec.Caused by Setpoint Drift.Instruments Recalibr

From kanterella
(Redirected from ML20009B535)
Jump to navigation Jump to search
/03L-0:on 810515,discovered That High Pressure Reactor Trip Setpoints for Pressure Transmitters Were Higher than Tech Spec.Caused by Setpoint Drift.Instruments Recalibr
ML20009B535
Person / Time
Site: Kewaunee Dominion icon.png
Issue date: 06/12/1981
From: Molzahn D
WISCONSIN PUBLIC SERVICE CORP.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20009B532 List:
References
LER-81-017-03L, LER-81-17-3L, NUDOCS 8107160242
Download: ML20009B535 (1)
v • d • e


LER-1981-017, /03L-0:on 810515,discovered That High Pressure Reactor Trip Setpoints for Pressure Transmitters Were Higher than Tech Spec.Caused by Setpoint Drift.Instruments Recalibr
Event date:
Report date:
3051981017R03 - NRC Website
v • d • e

text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION 3 (7-77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

lo lil lw II IK IN lP l 1 l@l 0 l0 l-l 0 l0 l 0 l 0 l n l-ln l n l@l A l1 l1 Ill1l@l l

l@

7 8 9 LICENSEE CODE 14 15 LICENSE NUMBEH 26 26 LICENSE TYPE JO 5 7 C A T 58 CON'T I lil S$RC[ l Ll@l015 l0 10 10 l3 l0 15 l@l0 15 11 16 l8 11 l@l016l1l5l8 l1 l@

7 8

60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSECUENCES h I o l 2 l lDuring the performance of surveillance testing it was discovered that two l

10131 lpressurizer pressure transmitters had drif ted, causing the high pressurc l

Ireactor trip setpoint for those transmitters to be 1 psig and 5.6 psig l

o 4 l o I s l labove Tech. Spec. limits respectively. The remaining channel was l

0 6 lwithin Tech. Spec. limits.

If required the high pressure reactor trip l

10 l 7 l lwould not have occurred within the limits of Technical Specification l

l a Ia l lTS 2.3.a.2.A.

l 80 7

8 9 C DE CODE S BCO E COWONENT CODE SUB DE SU E

1019l lI l A l@ y@ y@ lIl Nl Sl Tl Rl Ul@ W@ W @

SEQUENTI AL OCCURRENCE REPORT REVISION LE R;RO EVENT YE AR REPOR' NO.

CODE TYPE N O.

@ REP g l218l1l

[--j l 0 l 1l7 l y

l0l3l lL l l-l l0l 22 23 24 26 27 2d 29 30 31 32 T K N ACT N O PL s

ET O HOURS S B ITT FOR 6U0.

SUPPLt R MAN FACTURER l El@[Z_,J@

y@

Lj@

l0 l 0l 0l 0l W@

lN[g

] @

l F l 1 l 8 l 0 lg 33 34 35 36 3/

40 41 42 43 44 47 CAUSE CSSCRIPTION AND CORRECTIVE ACTIONS h lil0llThe cause of both instruments being out of specification was l determined to be instrument drif;::. Both instruments were l

i i lil7llrecalibrated and brought within specifications. A document review has shown l

liI?l lthese instruments to be reliable in the past.

No failures were found and no I

g Ifurther action is deemed necessary at this time.

l 7

8 9 80 STA S

% POWER OTHER STATUS IS U R DISCOVERY DESCRIPTION L'_lf_I W@ l 0101 Ol@l NA l

W @l Surveillance Testing l

j ACTIVITY CO TENT l

RELEASED OF RELE ASE AMOUP.T GF ACTIVITY LOCATION OF RELEASE l.,1_} 6 l d @ W@l NA l

l NA l

7 8 9 10 11 44 45 80 j

PERSONNEL EXPOSURES NOV8ER TYPE

DESCRIPTION

y l0l0l0l@[ZJ@l l

NA l

PERSON NE L INJUI IES I

NUMBER

DESCRIPTION

l 0 l 0 l 0 l@l NA l

1 s l

7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILtTV TYPE

DESCRIPTION

W@l NA l

1 9 PustiETY 8107160242 010612 8

ISSUE [@ DESCRIPTION h PDR ADOCK 05000305 NRC USE ONLY (E

l u, s

PDR g

lll;;;ggg;;;ly 2 o 7

8 9 to "

68 69 80 5 (414) 388-2560 D. J. Molzahn SW 0

!b gHONE:

N AME OF PREPARER

Retrieved from "https://kanterella.com/w/index.php?title=05000305/LER-1981-017-03,_/03L-0:on_810515,discovered_That_High_Pressure_Reactor_Trip_Setpoints_for_Pressure_Transmitters_Were_Higher_than_Tech_Spec.Caused_by_Setpoint_Drift.Instruments_Recalibr&oldid=4656863"