ML20064K036
| ML20064K036 | |
| Person / Time | |
|---|---|
| Site: | Mcguire |
| Issue date: | 03/15/1994 |
| From: | Mcmeekin T DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 94-02, 94-2, NUDOCS 9403220181 | |
| Download: ML20064K036 (3) | |
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- Duke 1%uct Company T C hkkkmv ai
- hkCuire Nuclear Generation Department I kkeheMdent
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' Huntenville, NC28018M
' (70.I)8754309 Fax 4
f DUKEPOWER March 15, 1994 U.S.. Nuclear. Regulatory Commission Document Control Desk
-Washington, D.C.
20555
Subject:
McGuire Nuclear Station Special' Report No.: 94-02 Problem. Investigation Process No.: 2-M94-0362 Gentlemen:
Attached for your information is-Special' Report No. 94-02 concerning:
'the Unit'2 Vibration and Loose' Parts Monitor, Channel 8, being.
declared inoperable due to signal problems. 'This event ~is considered to be of no significance with respect to'the health and. safety of the.
.public.
Very truly yours,
&Y
.T.C. McMeekin
~
RJD/bcb
' Attachment r
xc Mr. S.D. Ebneter INPO; Records. Center
- Administrator, Region II Suite 1500, U.S. Nuclear Regulatory Commission
.1100? Circle 175 Parkway.
,101 Marietta St., NW, Suite 2900 Atlanta,' GA 30339
' Atlanta,- GA 30323 g.
Mr. Victor'Nerses Mr. George Maxwell-U.S. Nuclear Regulatory Commission NRC Resident Inspector Office.of' Nuclear-ReactorLRegulation McGuire. Nuclear Station Washington, D.C.
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Ilerran R.C.
Norcutt K.L.
C.rano B.F.
Caldwell S.G. Bonesolo (ONS)
G. li. Savage G.D.
Swindlehurst M.S. Tuckman R.F. Cole D.B.
Cook G.A. Copp C.A.
Paton J.I.
Glenn P.M. Abraham Zach Taylor (CNS)
NSRB Support Staff (EC 12-A)
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Special Report SR-94-02 Unit 2 Vibration & Loose Parts Monitor operability of channel 0 i
Associated Tech spec 3.3.3.10 Related PIP's:
PIP 2-M94-0362 Cause of Malfunction:
Channel 8 (2MIMT5170, S/G 2D) of the i
Vibration & Loooo Parts Monitor (V& LPM) was declared inoperable af ter it was discovered to have signal problems by Operations on February 14, 1994.
WO 94012881 was initiated and channel investigated by IAE.
Signal problems were verified.
The cause of the low noise level is associated with sensor or poor cable terminations in RX2.
j Instrument Vendor:
V&LPH manufactured by Rockwell International Generic Concerns:
The V& LPM has a history of unreliable performance. Specifically, numerous sensor cable and termination problems have been experienced due to their susceptibility to damage during. installation or nearby maintenance activities.
This channel was also declared inoperable on 4/14/93 and repaired during 2EOC8.
Refer to Special a
Report SR 93-05 for additionaly information.
Compensatory Measures:
No compensatory measures are planned or required.
Plans for Restoring Operability:
Channel 8 of the V& LPM will be repaired under WO 94012881 during the next Unit 2 refueling outage (2EOC9),
or during installation of NSM MG-22096, when cables and terminations are accessable.
Future Plans for V& LPM:
NSM's MG-12096 (Unit 1) and MG-22096 (Unit
- 2) are scheduled for completion during lEOC9 and
- 2EOC9, respectively.
Implementation on these NSM's began during lEOC8 and 2EOC8, respectively. These NSM's will install a completely new system and address system failure trends.
BY:
l4 Dates bM"~ f Approvals
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Date:
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