ML18347B185

License Event Report 1978-005-00 Re Steam Generator Level Instrumentation

ML18347B185
Person / Time
Site:	Palisades
Issue date:	03/02/1978
From:	Hoffman D Consumer Energy Co
To:	James Keppler NRC/RGN-III
References
LER 1978-005-00
Download: ML18347B185 (2)

Text

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. t=-1i..t- c.;P-f consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 March 2, 1978 Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - BR-78-005 - STEAM

.GENERATOR LEVEL INSTRUMENTATION The reverse side describes a reportable occurrence under Technical Specification 6.1.2.b(l) for the Palisades Plant.

David P Hoffman Assistant Nuclear Licensing Administrator CC: Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement 1978

• • Palisades NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION (7*77)

LICENSEE EVENT REPORT CONTROL BLOCK: I I G) !PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION!

1 6

[IE] IMIIIPIAILl1l@lolololololololo lob lo 101411111111101 I 10 7 8 9 LICENSEE COOE 14 ~5 LICENSE NUMBER ~5 26 LICENS~ TYPE 30 57 CAT 58 CON'T

[ill] ~~~~~ ~10 I 51 01bIo12 I 51 5*101 oI o 21o12 17 I 8 IG)I 13 10 12 17 1B10 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@

f During calibration of steam generator level instruments which provide

[))1J I trip signals to the RPS. LT-0751C was found to have a setpoint of 40 inches. This setpoint is outside the limit of TS 2.3 (Table 2.3.1).

The other three 'A' steam generator level instruments providing RPS trip signals were within specifications; as a result, the steam generator low

~ I level trip was operable.

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1 .0 9 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCOOE SUBCODE filII 7 8 I

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10 11 12 I IIN Is I Tl I1 u1e 13 18 L.!J 19

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20 SEQUENTIAL OCCURRENCE REPORT REVISION*

c:;... LE RIRO Cy' 7ENT Y8EAR ROEPOORT N50. OC003E J.,YPEI  !:>(0.

\;.:) REPORT NUMBER 21 I I 22 I I 23 I I I I 24 26 I /I 27 I I 28 29 I r::......J 30 I I 31 L'32.::.J ACTION FUTURE TAKEN ACTION EFFECT ON PLANT SHUTDOWN METHOD HOURS

@> ATTACHMENT SUBMITTED NPRD-4 FORM SUS.

PRIME COMP.

SUPPLIER COMPONENT MANUFAq"\JRER l!J@~@

33 34

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35 l!J@)

36 I

37 q 010 I I L!J@

40 41 l:J@)

42 EJ@

43 1F ~ 10 10 44 47 I@

CAUSE DESCRIPTION AND CORREC'rlVE ACTIONS @

I The occurrence is attributed to setpoint drift. During the recalibration

!JJII Lprocesco, no transmitter mol f1mcti ons were detected. and the transmitter o::m was easily returned to specifications. No further action is contemplated.I OJI!

o:::m 7 8 9 80 FACILITY METHOD OF r.:;:::-.

STATUS  % POWER OTHER STATUS @ DISCOVERY

• DJSCOYE.8.Y DESC,RJPTION '8J DJI1 L!U@ 10 I o I 01@1 N;A ___

I ~QD.l c_a_1_1_b_r~at~1_o_n___ ~e_s_u_.~_~_s____________.....i 7 8 9 10 12 13 45 - 40 80 ACTIVITY CONTENT t.;;;\

REL1ifSED OF RELEASE I AMOUNT OF ACTIVITY N/A LOCATION OF RELEASE @

[ill] ~@) ~@l.__N_A_ _ _ _ ____.

7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES ~

NUMBER r:;:;.. TYPE DESCRIPTION

[ill] I 01 010 k~~@~N:..../A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _- - J 7 8 9 11 12 13 80 PERSONNEL INJURIES ~

NUMBER DESCRJPTION~

[LlTI I 0 I 01 0 l@~N_;A _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ J 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY G I2:III TYPE DESfflfA_JON ~

~@).___1_,__________________________________J 7 8 9 10 80 PUBLICITY Q O

r:;-r,::i 1rirrr'44\DES1fJ'_A10N~ NRC USE ONLY

~7 2

8 9

-v~------------------------------l 10 68 I 69 I I I I I I I I I I I 80I