05000267/LER-1979-052-03, /03L-0:on 791022,at 9% Power B Instrument Air Compressor Found to Have Insufficient Output While a Compressor Out of Svc.Caused by Bent Piston Rod & Worn Valves.Parts Replaced or Rebuilt

From kanterella
(Redirected from ML19210E320)
Jump to navigation Jump to search
/03L-0:on 791022,at 9% Power B Instrument Air Compressor Found to Have Insufficient Output While a Compressor Out of Svc.Caused by Bent Piston Rod & Worn Valves.Parts Replaced or Rebuilt
ML19210E320
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 11/20/1979
From: Gahm J
PUBLIC SERVICE CO. OF COLORADO
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19210E316 List:
References
LER-79-052-03L, LER-79-52-3L, NUDOCS 7912040330
Download: ML19210E320 (1)


LER-1979-052, /03L-0:on 791022,at 9% Power B Instrument Air Compressor Found to Have Insufficient Output While a Compressor Out of Svc.Caused by Bent Piston Rod & Worn Valves.Parts Replaced or Rebuilt
Event date:
Report date:
2671979052R03 - NRC Website

text

NRC FORM 366 U.S. NUCLEAR REGULATJRY COMMISSION d.m LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l

lh,

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l 6

f6 I l l c l 0 l F l S l V l 1 l@l 0 l 0 -l0l0l0l0l0 l0 l0 l@l4 l1 l1 l2 l0 l@l l

7 8 9 LICENSEE CoOE 14 15 LICENSE NUM8ER 25 26 LICENSE TYPs. J0 5 7 CAT 68 CON'T IL hl0l5l0 0 l0 2 l 6 l 7 @l 1 l 0 l 2l 2l 7l 9l@l 11 I l 2 l 0 l 719 l@

o 1

5O RC 7

8 60 61 COCK ET NUMSER 68 69 EVENT D%TE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h ITTTl l On October 22, 1979, with the plant operating at approximately 9% power and "A" in-l ITTTI I strument air coc: pressor out of service for maintenance, "B" instrument air compressor l l vas found to have insufficient output. This constitutes operation in a degraded trode l o

4 ITTT1 I of Lc0 4.3.6 and is reportable per Technical Specification AC 7.5.2(b)2. No accompanyjng 0

6 l occurrence. No ef fect on public health or safety.

Similar occurrence reported in I

o 7; l R0 79-29.

l o

a l

I 80 7

3 g E

CODE SUSC E COMPONENT CODE SU8 CODE SU E

l P l Al@ [E l@ l F l@ l Bl Ll 0l Wl El Rl@

Zl@ l Zl@

o 9

7 8

9 10 11 12 13 18 19 20 SEoufNTIAL OCCURRENCE REPO97 REVISION LER Ro EVENT YE AR REPORT NO.

CODE TYPE No.

@,ae,g 7 l9 l l-10 15 l 2 l l/l l0 3l lLl l 0l u

._21 22 23 24 26 27 28 29 30 31 32 TK N AC C ONP NT ME HOURS 22 S8 i POR S.

SUPPLIE MANUFACTURER lAl@lZl@

Zl@

l Zl@

0l0l0l0l y@

Nl.g

] @

Gl0l3l5lg 33 34 35 M

31 g

41 42 43 44 47 CAUSE JESCRIPTION AND CORRECTIVE ACTIONS h A l Cause of insufficient output was bent piston rod and worn valves and piston contri-l buting to less efficient compressor operation. Parts were replaced or rebuilt per l

i i

approved procedure and capacity check upon coc:pletion of repair indicated sufficient l g

l output was available.

l 3

i 4

l l

7 a 9 80 STA

% POWER OTHER STATUS 15 RY DISCOVERY DESCRIPTION W @

0l0 g l@l N/A l

[,A_jhl Personnel Discoverv l

i s

ACTIVITY CO TENT RELEASED OF RELEASE AMOUNT OF ACTtVITY LOCATION OF RELEASE 1

6I h

N/A l

l N/A l

7 3 9 10 tt 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE

DESCRIPTION

l0l0l0l@lZl@lN/A l

i 7

13 a0 PERSONNE t iN;u'Ri ES oESCRIPTION@

NuMeER 0l0l0l@l N/A l

t a

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

DESCRIPTION

9 f-lTl l_ Z_j@l N/A 1472 c

i 7912040 M 80 7

8 9 10 i

ITITl,$$uEf@oISCRiPriON @

NRC use ONov N

l N/A l

lllllllll 1fl{

  • 7 68 69 80 %

7 8 9 to

/[ df d J. W. Gahm (303) 785-2.253 o