05000324/LER-1979-096-03, /03L-0:on 791115,during Reactor Low Pressure Channel Calibr & Function Test,Switches 1 & 2 of 2-B21-PS-N021D Were Out of Tolerance.Caused by Loose Actuating Cam.Cam Set Screw Tightened & Instrument Calibr

/03L-0:on 791115,during Reactor Low Pressure Channel Calibr & Function Test,Switches 1 & 2 of 2-B21-PS-N021D Were Out of Tolerance.Caused by Loose Actuating Cam.Cam Set Screw Tightened & Instrument Calibr

ML19256F342
Person / Time
Site:	Brunswick
Issue date:	12/07/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256F339	List: 05000324/LER-1979-096, Forwards LER 79-096/03L-0 05000324/LER-1979-096-03, /03L-0:on 791115,during Reactor Low Pressure Channel Calibr & Function Test,Switches 1 & 2 of 2-B21-PS-N021D Were Out of Tolerance.Caused by Loose Actuating Cam.Cam Set Screw Tightened & Instrument Calibr
References
LER-79-096-03L, LER-79-96-3L, NUDOCS 7912180537
Download: ML19256F342 (1)

LER-1979-096, /03L-0:on 791115,during Reactor Low Pressure Channel Calibr & Function Test,Switches 1 & 2 of 2-B21-PS-N021D Were Out of Tolerance.Caused by Loose Actuating Cam.Cam Set Screw Tightened & Instrument Calibr

Event date:
Report date:
3241979096R03 - NRC Website

text

(7 7H LICENSEE EVENT REPORT CONTROL RLOCK: l l

l l

l l

l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

IO I I l Nl Cl B l E l Pl 2 l@l 0 l 0 l -l 0 0l0l0l0l-l0l0l@l4l1l1l1l1l@l l

7 8 9 LICENSEE CODE 14 15 LICENSE NUMUEH 2%

26 LICENSE TYPE JO

$ 7 GA T 68 CON'T 3[,c l L @l 0l 5 l 0 l -l 0 l 3 l 214 l@l 1 l 1 l 1 l 5 l 7 l 9 l@l l

l l

l l

l@

o i 7

8 60 61 OOCK ET NUuSER 68 63 EVENT 0 ATE le 7'J HEPORT DATE

1. 0 EVENT DESCRIPTION AND PROSA8LE CONSEQUENCES h ITTTl l While performing PT 3.1.14PC, Reactor Low Pressure Channel Calibration and Function 1 0 3i ! Test, switches 1 and 2 of 2-B21-PS-N021D were out of tolerance.

Switch 1, with a l

ITTT1 I requirement of 335 15 psig, was found at 315 psig, and switch 2, with a requirement l 0

s I of 435 t 15 psig, was found at 480 psig.

l 0 s l l

0 7

l l

0 g

Technical Specifications 3.3.3, 6.9.1.9b l

80 7

8 9 susSCOo'c sSCUE

• $E"

• ^ "o*E sLeCd5E C

CO COuPONENT COoE g

l Sl Flh Wh l B lh IlN lS lT lR lU lh l Xlh Zlh 7

8 9

10 It 12 13 18 19 20 SEOVENTI AL OCCURRENCE REPORT R EV151oN LER 80 EVENT vf AR REPORT NO.

CODE TYPE NO.

O fff.y l217 l9 l l-l 10 19 6l l/l 10 l3 l lL l

- l l0 l U

2?

23 24 26 27 28 29 30 31 J2 T K A TO O PL T V T MOUR$

$8 IT FOR h 8.

5 PPLIE MANUF CTURER (E_j@ W @

lZl@

( Z_jh l10 l0 010l W@

lY @

W@

l B l 0 l 8 l0 l(

33 J4 3b 36 3

40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i

O l The actuating cam was found to be loose causing the indication and switches to be

]

m

'out of tolerance. The cam set screw was tightened, the instrument was calibrated.

I i

7 l and the instrument was returned to service satisfactorily. This is an isolated eventi gi and no further action is required.

I l

4 7

8 9 90 STAI S

% POWER OTHE R STATUS Di$ 0 RY DISCOVERY oESCRIPTION

[_gjh l0l9 3l@lN/A l

W @l Periodic Test l

t 5

ASTiviTv COOrENT aELE ASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE

[.i 16] [.JJ @ l 2 l@l N/A l

l N/A l

7 1 9 10 t1 44 45 80 PE RL)gNEL ( RPQ$LR ES Nt '.*8t E n TYPE D E SC RIP flO N 10 10 0 l@l zl@l N/A l

i 7

h, PEnsONNEt.~~4Es D"D 7 D d @ lrde oE sCR.P nO~ @

M L'.1_J 1010 10 l@l N/A bb g

Num n l

1 4 9 11 11 80

=' "1 = "' @

1609 160

[.Z_j@l N/A l

i o e,

io So issub["@""INcniPnoN O NRC USE ONLY 791 algo [3

l N/A l

llllIII lIIIl'

-' o M

'J 10 68 69 80 i 919-457-9521 NAME OF PREPARER PHONE: