ML20151G740
| ML20151G740 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 07/15/1988 |
| From: | Cockfield D PORTLAND GENERAL ELECTRIC CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8807290199 | |
| Download: ML20151G740 (2) | |
Text
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s Portland General E!echicCompany s.,
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David W. Cockfield Vice President, Nuclear July 15, 1988 Trojan Nuclear Plant Dockot 50-344 Licenso NPF-1 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington DC 20555
Dear Sir:
Control Room Annunciator System Modification As part of Portland General Electric's (PGE) corrective actiore to resolvo Detailed Control Room Design Review (DCRDR) findings, PGE informed the NRC that a major modification to the cuntrol room annunTintor system would be mado. PGE committed in December 1984 to perform a study to determino whether conditions warranted system replacement or selectivo modifications to resolvo the human engincoring discrepanelee (l{EDs). On June 24, 1986, PGE committed to replace the control room annunciator system by j
September 30, 1989.
The objectivo of the new design was to reduco and prioritizo alarms, improve interpretability and arrangement of annunciator tiles, and improvo the overall man-machino interface control mechanisms. This design has I
required extensivo, in-depth reviews of system installation requirements.
In 1986, it was anticipated that a complete rodosign could be accomplished in 1989. Ilowever, the extent of the complexities involved and delays in the vendor delivery schedule woro not anticipated.
It has now becomo apparent that in order for the new control room annunci-ator system to be installed without compromising its quality, an extension of the original commitment dato is needed. PGE proposes to completo installation of the new control room annunciator system and achievo full operational status by September 30, 1990.
The reasons for the extension are as follows:
1.
The vendor has consistently not mot the key milestones in the design, manufacture, testing and shipment schedulo. The current projected delivery has been delayed by more than six months from the original vendor scledulo.
In addition, the delays in equipment delivery causo corresponjing delays in the issuance of PGE Detailed Construction Packages (DCPs).
The last vendor dolivery schedule revision has left insuffic ont time to completo the DCPs and adequately plan and com-ploto construction in 1989.
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WMMM Document Control Desk July 15, 1988 Page 2 2.
Testing of and training on the new control room annunciator system will require a major effort. The test instructions will be extencive and will involve considerable time and coordination between soveral depart-ments.
Final test instructions and training lesson plans cannot be written until the DCPs are available.
The DCRDR commitments affected by the new control room annunciator system modification include the following HEDs:
125-129, 132-137, 139, 234-236, 269-271, 276, 277, 345, 357 and 364.
The implementation schedulo noted in Volumes I and II of PGE-1041, "DCRDR Summary Report", for each of these HED resolutions will be changed to September 30, 1990.
We would be plcased to discuss any questions or comments you may have rescrding this information.
Sincerely, c:
Mr. John B. Martin Regional Administrator, Region V U.S. Nuclear Regulatory Commission Mr. Bill Dixon State of Oregon Department of Energy Mr. R. C. Barr NRC Resident Inspector Trojan Nuclear Plant i
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