ML20238A750
| ML20238A750 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 08/27/1987 |
| From: | Andrews R OMAHA PUBLIC POWER DISTRICT |
| To: | Bournia NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| IEIN-86-010, IEIN-86-10, LIC-87-566, NUDOCS 8708310194 | |
| Download: ML20238A750 (4) | |
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Omaha Pubilc Power District i
1623 Harney Omaha, Nebraska 68102 1
402/536 4000 August 27, 1987 LIC-87-566 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555
Reference:
Docket No. 50-285
Dear Mr. Bournia:
SUBJECT:
SPDS Information 1
Omaha Public Power District (0 PPD) received your telecopy dated July 23, 1987 regarding the upcoming visit by NRC personnel to review the Safety Parameter Display System (SPDS).
Included in the package was an " Enclosure 1" entitled l
" Questions On Status of SPDS". Accordingly, OPPD responds as follows:
1.
Indicate date SPDS was declared operational.
Was this in accordance with issued orders, or commitment dates?
The SPDS was declared operational on April 30, 1986. This was in l
accordance with the NRC's Confirmatory Order dated January 9,1986.
2.
Specify date Verification and Validation program en SPDS vias completed.
The Verification and Validation program on ths hPDS was completed April 10, 1986.
3.
Were operators training and procedures available for using SPDS?
Operators and shift technical advisors have been trained in the use of the SPDS. Procedures are currently available for its use.
4.
Have you reviewed your SPDS against the problems identified in IE Information Notice 86-10? Do you have similar problems?
OPPD has reviewed the SPDS against problems noted in IE Information Notice 86-10. OPPD's review resulted in the generation and subsequent closecut of several maintenana orders. Reliability problems were noted in the early kP[kB310 ADO $k f
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1 A. Bournia LIC-87-566 Page 2 stages of startup testing, etc. These were relative to debugging a new system and have been corrected.
Generally speaking, the items noted in IE Notice 86-10 are not problems at the Fort Calhoun Station.
5.
What is the operational availability of the SPDS?
Since declaring the SPDS operational on April 30, 1986, the availability has been 99.63% through August 1, 1987.
s 6.
Is the SPDS incorporated into the Emergency Operating Procedures?
No. Although the SPDS parameters correspond to those of the E0P Safety Function Status checks and in general will be used for this purpose, the intention was never to make the E0P's dependent upon the Safety Parameter Display System should the system be down when required. The Safety Func-tioli Status Checks of the E0P's are more easily accomplished via the SPDS but the Emergency Operating Procedures and associated Safety Function Status Checks are entirely independent of the SPDS.
7.
Who is the primary user of the SPDS?
The Shift Technical Advisor position at the Fort Calhoun Station is the primary user of the SPDS.
8.
Have modifications been made to the SPDS since it was declared operational?
Yes. The modifications made are as follows: Deleted the boron concentra-tion from the reactivity control display, because the instrumentation is isolated upon SIAS. This was accomplished through a software change.
Containment average temperature was added to the containment integrity oisplay. Modification package FC-85-099 completed the addition of qualified containment RTDs.
9.
Does the operational staff believe that the SPDS makes the operators job easier?
At the Fort Calhoun Station, the primary user of the SPDS is the Shift Technical Advisor (STA).
For the purposes of discussion, the SPDS en-compasses the top level and second level displays on the Emergency Response Facilities (ERF) computer system. Thus, the SPDS consists of 8 displays on the ERF computer. The remainder of the ERF computer system screens are informational and are not a part of the SPDS. Thus, the SPDS screens are of primary use to the STA when performing Safety Function Status Checks.
Use of the SPDS to do so eliminates the necessity of collecting the same l
information from the control panels. Operationally the SPDS is not highly utilized. The ERF computer system on which the SPDS resides is utilized for day-to-day normal operational activities by operators, STAS and other station personnel.
- 10. To what extent are operational staf f using or relying on information provided by the SPDS?
A. Bournia LIC-87-566 Page 3 The SPDS is heavily utilized for~ emergency operations, following reactor trips, and during emergency exercises and drills to perform the safety function status checks required by the E0Ps.
We believe the above information should serve to address the questions in.
If you have any additional. questions, please do not hesitate to contact us.
i Sincerely, 8/ &W R. L.'Andrews Division Manager Nuclear Production RLA/me cc: LeBoeuf, Lamb, Leiby & MacRae
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1333 New Hampshire Ave., N.W.
Washington, DC 20036 R. D. Martin, NRC Regional Administrator A. Bournia, NRC Project Manager P. H. Harrell, NRC Senior Resident Inspector I
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