ML17261A146

LER 79-020/03L-0:on 791009,during Snubber Insp,Snubber in Position MS146 Found W/No Accumulator Level.Caused by Movement of Pipe Resulting in Wear on Accumulator & Eventual Failure of Shaft Seal.Unit Replaced W/Spare

ML17261A146
Person / Time
Site:	Ginna
Issue date:	11/07/1979
From:	Spector S ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17249A258	List: ML17249A257 ML17261A146
References
LER-79-020-03L, LER-79-20-3L, NUDOCS 7911140239
Download: ML17261A146 (2)

Text

NRC F~M 366 I7-77I "~ I t 79-020/03L-0 LICENSEE EVEAIT REPORT U. S. NUCLEAR REGULATORY COMMISSION

~ (CAR 1239)

~$

CONTROL BLOCK' Qi (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI

~O 7 8 9 N Y R E LICENSEE CODE G 1 14 3

15 0 0 0 0 0 0 LICENSE NUMBER 0 0 0 0 3 26 4 1 1 LICENSE TYPE 1 1 30 Q 57 CAT 58 CON'T

~O REPoRT

~LQB 0 5 0 0 0 DOCKET NUMBER 2 4 4 68 7

69 1 0 0 9 EVENT DATE 7 9 74 B

'75 1 1 0 7 REPORT DATE 7 9 Q 7 8 60 61 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 uring snubber inspection snubber in position MS 146 (top) was found with no accumulator level . Unit was replaced with a new factory tested spare 4 (T.S. 3. 13. 1)

~O6

~OB

~O7

~OB 80 7 8 9 SYSTEM CAUSE CAUSE COMP VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~OB Q11 B Gs ~B Q13 S U P 0 R T 04 LDJQ13 ~z Q13 9 10 11 12 13 18 19 20 7 8 REVISION SEQUENTIAL OCCURRENCE REPORT Qlr LERIRO REPQRT ACTION FUTURE EVENT YEAR

~79 2'I '22 EFFECT

+

23 SHUTDOWN

~02 24 REPORT NO.

0 26

+~

27

~03 28 ATTACHMENT CODE 29 NPRD 4 TYPE

~L 30 PRIME COMP.

LJ 31 L

NO.

32 I

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~CQTE ~ZQER ~ZQER ~ZQ>> O O O 0 ~WQ33 ~vQ34 ~AQs B 2 O 9 Qss 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o Constant movement of i e resulted in wear on accumulator, tube, iston, shaft, check valves and eventual failure of the shaft seal. The unit is a Bergen-Paterson model HSSA-30. Inspection of snubbers will continue as dictated by the Technical Specification.

80 7 8 9 METHOD OF FACILITY STATUS  % POWER OTHER STATUS Pl M3O DISCOVERY DISCOVERY DESCRIPTION s E Qs ~10 0 Qs NA ~BQ31 Surveillance of snubbers 8 9 10 12 13 44 45 46 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY Q NA LOCATION OF RELEASE Q 6 ~Z Q33 ~ZQ34 NA 9 10 44 45 80 7 8 PERSONNEL EXPOSURES NUI'ABER TYPE 'ESCRIPTION 1 ~00 0 QET ~ZQ33 NA 80 7 8 9 11 12 13 PERSONNEL INJURIES 12 80 7 8 9 11 LOSS OF OR DAMAGE TO FACILITY 43 TYPE DESCRIPTION Z Lzl(8 9 10 NA 80

~t 7

PUBLICITY NRC USE ONLY 7911140 68 69 80 o 7 8 9 10 NAME OF PREPARER S. Spector PHDNE. 716/546-2700, ext. 29 1-2 15

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