ML20246L408
| ML20246L408 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 03/17/1989 |
| From: | Morris K OMAHA PUBLIC POWER DISTRICT |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| LIC-89-246, NUDOCS 8903240170 | |
| Download: ML20246L408 (2) | |
Text
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1623 Harnet Omaha, Nebraska 68 Omaha P March 17, 1989 j
LIC-89-246 402/S36 4000 102 2247 U. S. Nuclear Regulatory Commi Attn:
Document Control Desk ssion Mail Station Pl-137 Washington, DC 20555
References:
1.
Docket No. 50-285
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2.
Letter OPPO dated Februar(y. J. Morris) to NRC (Document C K
7,1989 (LIC-89-161), Speci l ontrol Desk)
Inoperability of Main Steam Li and Wide Range Noble Gas Stack Mo itne R a
Report on Letter OPPDfor Post-Accident Monitoring 3.
n Inoperability of Wide Rang (e N bd K
23, 1989, g=
LIC-89-227), Special Report o )
for Post-Accident Monitorin ontrol Desk o le Gas Stack Monitor RM-0 n
SUBJECT:
g Followup to Special Report RM-063H for Post-Accident Mo iRa on Inoperability of Main Steam Gentlemen:
n toring ne n or Omaha Public Power District ments of Fort Calhoun Statio(OPPD) submits thi Monitoring Instrumentation "n Technical Spe if of one channel for ble in Modes 1, 2 and 3RM-063H and one chann c
ication 2.21 noble gas
" Post-Accidentre-main steam line radiation monit stack monitor RM-063L, RM-063Mequi minimum operable channels requi If the submit a Special Report to the Cchannels to operab number of operable channels is l or RM-064 be operand rement, OPPD must either rest a
5.9.3 within 14 days followi ommissionn seven days of the event ore the inoperable ess than the RM-063H and RM-064 and indic preferences 2 and
, or prepare and 17, 1989.
on a ed that these monitors would be inoper Monitors RM-063L and RM-063M 1989.
- 3L RM-063M, were returned to e opera,ble by March service on March 13, PDR8903240170 890317 ADOCK 05000285 g
?4 Employmen it Equ Opportunity
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- U. S. Nuclear Regulatory Commission LIC-89-246 l
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On February 27, 1989, wide range noble gas stack monitor RM-063H was undergoing calibration when detector RE-063H and RM-063H preamplifier were four.d to be I
defective. A replacement detector has been purchased from the manufacturer j
(Victoreen). Victoreen has informed OPFD that the delivery date of the replace-ment detector will be March 28, 1989.
It is planned that RM-063H will be fully operational by May 15, 1989.
Upon receipt of parts for Main Steam Line Monitor RM-064, replacement was completed. The vendor was contacted to verify proper calibration technique because the secondary calibration had only been conducted during an outage in the past.
Results of the conversation indicated that a primary calibration would be required in addition to the secondary calibration. The original primary calibration was performed by-the manufacturer; OPPD has not performed a subsequent primary calibration and consequently did not have a procedure for doing so. The secondary calibration is currently being conducted, concurrent l
with the primary calibration procedure development underway by the Chemistry Department.
It is planned that RM-064 will be fully operational by May 15, 1989.
If you have any questions, do not hesitate to contact us.
Sincerel,
h K. J Morris Division Manager i
Nuclear Operations KJM/dm c:
LeBoeuf, Lamb, Leiby & MacRae R. D. Martin, NRC Regional Administrator P. D. Milano, NRC Project Manager P. H. Harrell, NRC Senior Resident Inspector 1
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