ML20009F969
| ML20009F969 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 07/23/1981 |
| From: | Holder G TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20009F964 | List: |
| References | |
| LER-81-033-03L-01, LER-81-33-3L-1, NUDOCS 8108030203 | |
| Download: ML20009F969 (2) | |
Text
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U. S. NUCLEAR REGULATCRY COMMISSION l TC FORM *'
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H' 60 61 OOCKET NUM8ER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l a 12 l,1 During normal operation, while performing routine surveillance tests (SI 4.2.B-7),
2-PS-68-96 switch number 1 failed to operate. (T.S. Table 3.2.B). This switch is ;
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oiAi l a reactor low pressure permissive for recirculation pump' discharge valve actuation.
Redundant systems were g n i ., .
[ There was no danger to the health or safety. of the public.
g JoI. 1 l available and operable. Previous similar event: BFRO-50-260/78018. i TTT-l l l
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' LYJO 48 I42N [@ 43 44 47 J3 J4 JS CAUGE DESCRIPTION AND CORRECTIVE ACTIONS 1
The Barton, bellows type, pressure switch, model 288 g I i l o j l Stuck switch - reason unknown.
iiiij i was freed, exercised a number of times to verify switch operability, and surveillance
- , i ,i i instruction 4.2.B-7 was satisfactorily completed. This is considered a random ;
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- failure and no further recurrence control is required.
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Y OlSCOVERY DESCRIPTION l YTNtf[ % POWER OTHER STATUS OtS Routine test l li 151 [Jjh l 0l 9 l 8l@l NA l lBlgl *
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! Gene Holder PHONE:
(205) 729-6134 ,,
NAME OF PREPARER
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Form liF 17
'Tenrn:..cc Vallev :\ut h.. it y BF 15.2 Brosvin. Iterry N o r te:o l' hut G/04/81 1 F.l; SUl'l LF. MENT Al. INi/ul01 ATION Twhnic.at S;wnfication in ce!ved Tabl t 3,%.B._.._ _ .
Bi it(' f>0 ^ 260. / 81033
- Late due NRC: .8/1Z81. _..
liete ried Under Technic.il Specific.iti<>n (>.7. 2.b_(2).
Time of occurrence __030_g_.,__ Unit 7_
Date of Occurrence 7/2/81
!dentification and De.,cription of Occurrence:
During routine surveillance tests (SI 4.2.B-7), reactor low pressure permissive switch for recirculation pump discharge valve actuation (2-PS-68-96 switch number 1) failed to operate.
Ceiniition:. l'rior to Oc. urrence Uniti' 1 In rdfueling outage.
~
Unic 2 at 98%.
Unit 3 at 99%.
Action >pecified in tne Tc;hnical Specification Surveillance Requirements met Describe .
' h "' 19_ iPOEe r3 b_le _.u.lu il imen t .
None APl'.uwt C. use of occt.crence.
Switch was stuck - reason unknown.
Asudvsis <>f Occurrence.
There was no danger to the health or safrt.y of and the public, no release no resulting of significant activity, no damage to the plant or equipment, chain of events.
(:orr. clive Action: The Barton Model 288 was freed, exercised a number ofd times to verify switch operability, and SI 4.2.B-7 was satisfactorily complete .
This is considered a random failure and no further recurrence control is required.
Failure Data: BFRO-50-260/78018 lier < ntion:
l'er~p d - 1.ifetime; ltesponsibility - Document Control Supervisor
+1h vision :