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| document report number = NUDOCS 8004110836
| document report number = NUDOCS 8004110836
| package number = ML19319E582
| package number = ML19319E582
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO,LER), TEXT-SAFETY REPORT
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER), TEXT-SAFETY REPORT
| page count = 5
| page count = 5
}}
}}


=Text=
=Text=
{{#Wiki_filter:.          .
{{#Wiki_filter:.
UCENSEE EVENT REPC                       T a             CONTROL 8tOCx 1 1
UCENSEE EVENT REPC T
I   I   I  I   I 8
a CONTROL 8tOCx 1 I
I                           cm. anes mis T au.n8 u8i8e 8s e88 san 8ss NAME                                       LCENSE NUM8EA 7 89 l A IR I A IR lRll 1 14 1010 l-lo lo lo le lo l-lo lo l                       14 l 1 11 11 l l l         lo 13 15                                               25   28                   30   31   3E CATEGOAV          TYy EE                       OOCKET NUMSEA Evt 4f OATE                   MAONT OATE O 1 CON'T l           l     l     {(j       {t_,j   lQ l5 l01-101311 l3 I 1012 l1 li h h l I Ol3 I f I 417171, 7 8                 57     58         59       80     81                                 88     89                     74   75                   E EVENT DESCRIPTON
I I
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EVENT DESCRIPTON
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O s_-         1. Reportable Occurrence Report No.                 50-313/77-6
O 1.
: 2. Report Date: 3/15/77                             3. Occurrence Date:       2/19/77 4   Facility:                 Arkansas Nuclear One-Unit 1 Russellville, Arkansas
s_-
: 5. Identification of Occurrence:
Reportable Occurrence Report No.
50-313/77-6 2.
Report Date: 3/15/77 3.
Occurrence Date:
2/19/77 4
Facility:
Arkansas Nuclear One-Unit 1 Russellville, Arkansas 5.
Identification of Occurrence:
Failure of the High Pressure Injection Flow Transnitters (PDT-1210 6 PDT-1209) on Loop "A" and the Flow Transmitters (PDT-1228 6 PDT-1230) on Loop "B" being out of manufacturer's tolerance.
Failure of the High Pressure Injection Flow Transnitters (PDT-1210 6 PDT-1209) on Loop "A" and the Flow Transmitters (PDT-1228 6 PDT-1230) on Loop "B" being out of manufacturer's tolerance.
: 6. , Conditions Prior to Occurrence:
6.
Steady-State Power                                   Reactor Power           0             MWth Hot Standby                                         Net Output               0             MWe Cold Shutdown                                       Percent cf Full Power             0           g Refueling Shutdown                   X               Load Changes During Routine f)                                                                      Pcner Operation V                 Routine Startup Operation Routine Shutdown Operation Other (specify)
, Conditions Prior to Occurrence:
: 7. Description of Occurrence:
Steady-State Power Reactor Power 0
At 1400 hours on February 19, 1977, while performing a surveillance test on the HPI flow transmitters, it was discovered that the two flow transmitters on Loop "A" (PDT-1210 and PDT-1209) had failed and the two flow transmit.ters on Loop "B" (PDT-1228 and PDT-1230) were out of the recommended manufacturers tolerances.                                                           -
MWth Hot Standby Net Output 0
The bellows of. PDT-1210 and PDT-1209 had failed, therefore the flow indicator would not have indicated flow upon the actuation of an ES signal. PDT-1228 would have indicated flow 1% low and PDT-1230 m               would have indicated 4% low upon actuation of an ES signal.
MWe Cold Shutdown Percent cf Full Power 0
km    )
g Refueling Shutdown X
f)
Load Changes During Routine Pcner Operation V
Routine Startup Operation Routine Shutdown Operation Other (specify) 7.
Description of Occurrence:
At 1400 hours on February 19, 1977, while performing a surveillance test on the HPI flow transmitters, it was discovered that the two flow transmitters on Loop "A" (PDT-1210 and PDT-1209) had failed and the two flow transmit.ters on Loop "B" (PDT-1228 and PDT-1230) were out of the recommended manufacturers tolerances.
The bellows of. PDT-1210 and PDT-1209 had failed, therefore the flow indicator would not have indicated flow upon the actuation of an ES signal.
PDT-1228 would have indicated flow 1% low and PDT-1230 m
would have indicated 4% low upon actuation of an ES signal.
k
)
m


      \s           Reportable Occurrence Report No.     50-313/77-6
\\s Reportable Occurrence Report No.
: 8. Designation of Apparent Cause of Occurre- e:
50-313/77-6 8.
Design                                 Procedure Manufacture                           Unusual Service Condition Including Environmental Installation /
Designation of Apparent Cause of Occurre-e:
Construction                         Component Failure (See Failure Data)
Design Procedure Manufacture Unusual Service Condition Including Environmental Installation /
Operator Other (specify)     X O'ne bellows appeared to have failed due to fatigue and the other bellows appeared to have failed due to being over pressurized. The
Construction Component Failure (See Failure Data)
          ,          reason for two transmitters being out of tolerances is unknown.             l k           9. Analysis of Occurrence:
Operator Other (specify)
X O'ne bellows appeared to have failed due to fatigue and the other bellows appeared to have failed due to being over pressurized.
The reason for two transmitters being out of tolerances is unknown.
k 9.
Analysis of Occurrence:
Since both HPI loops remained operable even though the transmitters were inoperable or inaccurate, there was no hazard to the health to the health and safety of the public.
Since both HPI loops remained operable even though the transmitters were inoperable or inaccurate, there was no hazard to the health to the health and safety of the public.
l l
l
1 l
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                                                                                                -j I
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t Reportable Occurrence Report No. 50-313/77-6                           ;,
t Reportable Occurrence Report No.
50-313/77-6
: 10. Corrective Action:
: 10. Corrective Action:
1
1 The two bellows were replaced in PDT-1210 6 PDT-1209 and adjustments were made to PDT-1228 6 PDT-1230.
;'                    The two bellows were replaced in PDT-1210 6 PDT-1209 and adjustments ;
I i
were made to PDT-1228 6 PDT-1230.
11.
I i               11. Failure Data:
Failure Data:
The flow transmitters were Bailey Meter Type BY-3240X-A; 0-1000 inches H2 O differential pressure transmitter.
The flow transmitters were Bailey Meter Type BY-3240X-A; 0-1000 inches H O differential pressure transmitter.
i a
2 i
                            .                                                                  l i
a i
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J 4
J 4
Reportable Occurrence Report do.                           50-313/77-6
Reportable Occurrence Report do.
                          -10.         Corrective Action:
50-313/77-6
The two bellows were replaced in PDT-1210 5 PDT-1209 and adjus tments                                                                             !
-10.
were made to PDT-1228 4 PDT-1230.                                                                                                                 !
Corrective Action:
1 i
The two bellows were replaced in PDT-1210 5 PDT-1209 and adjus tments were made to PDT-1228 4 PDT-1230.
i
?
?
4
4 11.
: 11.         Failure Data:                                                                                                                                   ,
Failure Data:
l The flow transmitters were Bailey Meter Type- BY-3240X-A; 0-1000
l The flow transmitters were Bailey Meter Type-BY-3240X-A; 0-1000
)                                     inches H2 O differential pressure transmitter.
)
l l-i-
inches H O differential pressure transmitter.
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Latest revision as of 19:02, 1 January 2025

RO 50-313/77-06:on 770219,surveillance Test Indicated Two HPI Flow Transmitters on Loop a Failed & Two Flow Transmitters on Loop B Out of Tolerance.Caused by Bellows Fatigue & Overpressurization.Bellows Replaced
ML19319E585
Person / Time
Site: Arkansas Nuclear 
Issue date: 03/14/1977
From: Mardis D
ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19319E582 List:
References
NUDOCS 8004110836
Download: ML19319E585 (5)
v • d • e


Text

.

UCENSEE EVENT REPC T

a CONTROL 8tOCx 1 I

I I

I I

I cm. anes mis T au.n8 u8i8e 8s e88 san 8ss 1

8 NAME LCENSE NUM8EA l A IR I A IR lRll 1 1010 l-lo lo lo le lo l-lo lo l 14 l 1 11 11 l l l lo 13 7 89 14 15 25 28 30 31 3E TYy EE OOCKET NUMSEA Evt 4f OATE MAONT OATE CATEGOAV O 1 CON'T l l

l

{(j

{t_,j lQ l5 l01-101311 l3 I 1012 l1 li h h l I Ol3 I f I 417171, 7 8 57 58 59 80 81 88 89 74 75 E

EVENT DESCRIPTON

@B 1 b ma toutua wrtoowa. A wuum.mec Terr wmcasm u 4er be 1-7 is 9 I )i W

8 IT - ~ m,,. i ea woe a u.

,m m w we n a,mmmm ea woe r

7 89 W

8 l usu e w, 2_v--

mi.um,ea, w uct.s. %es une er.sucs= en l'

7 89 M

M i T.

Aco r, c n wo nosodwom w.at mm,

a. we um, s w.,mrrsu.

I 7 89 M

v

.. w.n w sv. h us. (so-ml,, U iI EE I h t.

7 89 m

90 !

$oor Of COMPONENT CocE ER MANUFACTt A VOLATON u IP ic. i is_J h la is lTi t.lo l IAI is l o l41s l (1J 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTON EE lem I,

sau.

u, u.m.v ma eet x. m mut mew m.

ums.mu 7 89 80 lYAWEO Mt To 00Mf tassu.tT.AdT ied. T*E S.ukso 3 Pe We TemaMamTTE%L hl96 OCT OF

~89 80

) I w.=wa w u.w4.L,itmo w.w was wwn, u. w Covaa3.

1 5 Y

% POW En ofwrA STATUS OtSCOVEAv OrSCOVERY DESCAlpTON 8

L3.J lololol I v.

I l.h.]

I 1

7 8 9

10 12 13 44 45 46 80 AELEdD LEJ l

m I

I e

1 OF L ASE AMOUNT OF ACTfvi1Y LOCATON OF RELEASE n

1.i 7 8 9

10 11 44 45 80 PERSONNEL EXPOSURES NUweE R Type DESCAspTON M 1010161 lj!!J l

um I

7 89 11 12, 13 80 PERSONNEL INJURIES NUM8EA DESCAspTICN lolo lol I

ww I-1 89 11 12 80 OFFSITE CONSEQUENCES i

I sk I

7 8g 80 LOSS OR OAMAGE TO FACILITY Tv pf DESCAipTON 8WI ws l'

7 89 10 go PUBUCITY 8I am I

7 89 80 8004110Mf AODITIONAL FACTOPt 4

6/1 m

I 7 89 80 8I l

N = E.

bo 6. hems PNONe: soi/ a ti -44%

O 1.

s_-

Reportable Occurrence Report No.

50-313/77-6 2.

Report Date: 3/15/77 3.

Occurrence Date:

2/19/77 4

Facility:

Arkansas Nuclear One-Unit 1 Russellville, Arkansas 5.

Identification of Occurrence:

Failure of the High Pressure Injection Flow Transnitters (PDT-1210 6 PDT-1209) on Loop "A" and the Flow Transmitters (PDT-1228 6 PDT-1230) on Loop "B" being out of manufacturer's tolerance.

6.

, Conditions Prior to Occurrence:

Steady-State Power Reactor Power 0

MWth Hot Standby Net Output 0

MWe Cold Shutdown Percent cf Full Power 0

g Refueling Shutdown X

f)

Load Changes During Routine Pcner Operation V

Routine Startup Operation Routine Shutdown Operation Other (specify) 7.

Description of Occurrence:

At 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br /> on February 19, 1977, while performing a surveillance test on the HPI flow transmitters, it was discovered that the two flow transmitters on Loop "A" (PDT-1210 and PDT-1209) had failed and the two flow transmit.ters on Loop "B" (PDT-1228 and PDT-1230) were out of the recommended manufacturers tolerances.

The bellows of. PDT-1210 and PDT-1209 had failed, therefore the flow indicator would not have indicated flow upon the actuation of an ES signal.

PDT-1228 would have indicated flow 1% low and PDT-1230 m

would have indicated 4% low upon actuation of an ES signal.

k

)

m

\\s Reportable Occurrence Report No.

50-313/77-6 8.

Designation of Apparent Cause of Occurre-e:

Design Procedure Manufacture Unusual Service Condition Including Environmental Installation /

Construction Component Failure (See Failure Data)

Operator Other (specify)

X O'ne bellows appeared to have failed due to fatigue and the other bellows appeared to have failed due to being over pressurized.

The reason for two transmitters being out of tolerances is unknown.

k 9.

Analysis of Occurrence:

Since both HPI loops remained operable even though the transmitters were inoperable or inaccurate, there was no hazard to the health to the health and safety of the public.

l

-j

=

9 0

t Reportable Occurrence Report No.

50-313/77-6

10. Corrective Action:

1 The two bellows were replaced in PDT-1210 6 PDT-1209 and adjustments were made to PDT-1228 6 PDT-1230.

I i

11.

Failure Data:

The flow transmitters were Bailey Meter Type BY-3240X-A; 0-1000 inches H O differential pressure transmitter.

2 i

a i

W

(

l l

t

J 4

Reportable Occurrence Report do.

50-313/77-6

-10.

Corrective Action:

The two bellows were replaced in PDT-1210 5 PDT-1209 and adjus tments were made to PDT-1228 4 PDT-1230.

i

?

4 11.

Failure Data:

l The flow transmitters were Bailey Meter Type-BY-3240X-A; 0-1000

)

inches H O differential pressure transmitter.

2 l

l-i-

i 1

i i

l

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