05000280/LER-1982-032

LER 82-032/03L-0:on 820531,pressure in Nitrogen Bottle Supplying Emergency Air to PCV-MS-202A & B Found Below Tech Spec Limit.Caused by Fitting Leaks in Air Lines.Fittings Tightened & Pressurized Bottle Installed

ML20054L635
Person / Time
Site:	Surry
Issue date:	06/28/1982
From:	Joshua Wilson VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20054L628	List: 05000280/LER-1982-032 05000280/LER-1982-066 05000280/LER-1982-070 ML20054L627
References
LER-82-032-03L-03, LER-82-32-3L-3, NUDOCS 8207080315
Download: ML20054L635 (2)

LER-2082-032,

Event date:
Report date:
2802082032R00 - NRC Website

text

.-.

NCC F ORM,366

• U.S. NUCLEAR REGULATO3Y COMMISSION

1 11) .

LICENSEE EVENT REPORT l

CONTROL BLOCK. l l l 1 I lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION1 l

l e i.i .l i VI. .CE~su Al SC;atl P I S l 2 l@n010

i. uCE~ul -l~uu.E.01010l 01 01 =-l010 2s uCENu l@l Tv.E 4 s0 l 1 l car 1

1l 11 l @ 1l@l C ON'*

lo!ii M"g{ l L }@l 01510 i 0101 ? l 81 1l@l015 l 3 l1 l 8 l 2 l@l75 0 l REPORT 34 612181DATE 812l@

80

~

8 W Si DOCKET NUMetm 48 09 EVENT DATE EVENT DESCRIPTION AND PROBA8LE CONSEQUENCES Q l c ::1 l With Unit 2 steady at 95% power, operators performine inspections discovered that l .

i o 13 i j pressure in the Nitrogen bottle supp' lying emergency air to PCV-MS-202A & B was t .. . . .

> 10141 l below the limit. This event is contrary to T.S. 3.6.C and is reportable per l __

lo !sl 1 T.S.6.6.2.b(2). The Instrument Air System remained operable, therefore, the healthl_

~

I o is i I nnd snfety of the nublic were not nffected. l _

10l7l l l I

t o le l 1 SYSTEM CAUSE CAUSE COMP. VALVE CCOE CCOE SUSCODE COMPONENT CODE SUSCODE SUSCCDE

, ,[o f e_ .j lS l11 l@ W@ l Z l@ l P lIl Pl El XI XI@ y@ lZ m l@

. ic ,, n 22 i. i.

SEQUENTIAL OCCURRENCE REPORT REV'S'ON EVENTYE4R REPORT NO. CODE TYPE NC.

LEm/m0

@ ,aj,3; I81 21 1-1 1013121 1/l I o f 31 I tl L-1 toJ 2i 22 22 24 as 2r as as 20 si 22 EN 'ASoN '

oEIET '*SEo* u '"'"s',$N uENu"I2CTURER NoumS @ #7e^ui1 S TIE PoES e. SU l33B l@l34 Gl@ lZ 33 l@ I26Z l@ l 010 l 0101 37 40 J@

di l42Nl@ lLl@ lZ l9 19 19 l@

42 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I i i o i I The loss of pressure was a result of fittinc lenks. The fittines were richtened I The bottle creasure readine has I

_Iiti1Iand a fully pressurized bottle was installed.

i, ,2, I been added to the daily loc data sheet. I I

liisi l l

I l li id i l i 7 3 p 50 A  % POWE9 QTHER STATUS i ERY DISCOVERY DESCR8FTiON 11 151 d @ lOI0l5lh! N/A j ( Ajh! Operator Observa tion l 7 e i 12 11 44 46 es 80 5.ELEASED CP mELEAst AMOUNT OF ACTivtTY LOCATION OF RELEASE

{ li {6 l N /A l l N/A 80 l

l 7 8 9 30 si 44 46 i PERSONNEL EXPOsungs NUMete TV'E DESCRIPTION l i ! ? l I ol nl ol@l Z l@l N/A 1 PEmsCNNE L awupiES N,.E m C nCR,, Tie-@

N/A I I?

l i i s8l .I 01 01 0l@li2 11 B0

( LOSS 08 On cauact TO FACILITY 43 DESCR,8 TION Tv*E

, l ' 191 [2.j@l N/A _

l 8207080315 820628 eued?Tv NRC uSE ONLv -

issute oEsCai Tion @ PDR ADOCK 05000280 .

,1 C ( c ) W@l S PDR l lt Ii llti111 l;

!, , . 30 .. .. .0  :

NAVE C= .or.4 co J. L. Wilson w:yg (804) 357-31R4 5

_. -- =__ _

d ATTAClutENT 1 i

SURRY POWER STATI0'1, UNIT NO. 2 j DOCKET NO: 50-281 REPORT NO: 82-032/03L-0 EVENT DATE: 05-31-82 TITLE OF Tile EVENT: Low Emergency Air Pressure to Steam Driven Aux. Feed Pump

1. DESCRIPTION OF EVENT: {:

f:

On tiay 31 and June 1, with the unit steady at 95% power, operators performing i:

walkdowns of the #2 Safeguards Building discovered that the pressure in the Nitrogen bottle supplying energency air to the Steam Driven Auxiliary Feed

'; pump A0V's (PCV-MS-202A & B) was below the limit of 1000 psig. This event is contrary to Technical Specification 3.6.C and is reportable in accordance with l

+ Technical Specification 6.6.2.b(2).

2. PROEABLE CONSEQUENCES and STATUS of REDUNDANT EQUIPMENT:

' The Steam Driven Auxiliary Feedwater pump (2-FW-P-2) must be capable of being operated independently of any alternating current power source for at least two hours. The nitrogen tank has been added to the instrument air line to provide control of the PCV's for the required two hour period. l The Instrument Air System remained operable while the emergency air system was out of service. Therefore, the health and safety of the public were not j'

, affected.

i

3. CAUSE:

The loss of Nitrogen pressure was a result of fitting leaks in the air lines.

4. IMMEDIATE CORRECTIVE ACTION:

i l The Nitrogen bottle was replaced with a fully pressurized bottle.

4 t,

5. SUBSEQUENT CORRECTIVE ACTION:

The leaking fittings were tightened, and the system was returned to service within the time span specified by Technical Specification 3.6.F. 1

6. ACTION TAKEN TO PREVENT RECURRENCE

The Nitrogen bottle pressure reading has been added to the operators outside i Log Data Sheet to ensure that the pressure is monitored daily.

7. CENERIC IFTLICATIONS: i, l;

None.

I, l

r l

- _ _ _ -