Headquarters Daily Report NOVEMBER 18, 1997 *************************************************************************** REPORT NEGATIVE NO INPUT ATTACHED INPUT RECEIVED RECEIVED HEADQUARTERS û REGION I û REGION II û REGION III û REGION IV û PRIORITY ATTENTION REQUIRED MORNING REPORT - HEADQUARTERS NOV. 18, 1997 Licensee/Facility: Notification: Part 21 Database MR Number: H-97-0139 Conval Date: 11/18/97 Subject: Part 21 - Potential crack in valve body forging Discussion: VENDOR: Conval PT21 FILE NO: 97-80-0 DATE OF DOCUMENT: 10/24/97 ACCESSION NUMBER: SOURCE DOCUMENT: EN 33144 REVIEWER: PECB, W. Burton NEW ISSUE. The vendor reports that five forged valve bodies of one inch, 1500 lb design, #5, Y-Globe, stop valve and check valve may have a crack within the forging wall at the die flash line. The problem is limited to Ideal Forge Heat Code Lot M7, which is stamped on each body forging. Only the Maine Yankee, Cook 1, and Cook 2 nuclear power plants are affected. _ HEADQUARTERS MORNING REPORT PAGE 2 NOVEMBER 18, 1997 Licensee/Facility: Notification: Part 21 Database MR Number: H-97-0140 Abb-Ce Date: 11/18/97 Subject: Part 21 - Nuts and washer plates for ECCS strainer assemblies were made of wrong material Discussion: VENDOR: ABB-CE PT21 FILE NO: 97-81-0 DATE OF DOCUMENT: 10/30/97 ACCESSION NUMBER: SOURCE DOCUMENT: EN 33188 REVIEWER: PECB, V. Hodge NEW ISSUE. The vendor reports that nuts and washer plates to be used in emergency core cooling system suction strainer connections at Peach Bottom 3 were made of the wrong material. This would have been the first application for these fasteners. None were installed. _ HEADQUARTERS MORNING REPORT PAGE 3 NOVEMBER 18, 1997 Licensee/Facility: Notification: Part 21 Database MR Number: H-97-0141 Siemens Date: 11/18/97 Subject: Part 21 - End-of-cycle transient scenarios might not always be limiting for the entire cycle Discussion: VENDOR: Siemens PT21 FILE NO: 97-82-0 DATE OF DOCUMENT: 10/16/97 ACCESSION NUMBER: 9710210065 SOURCE DOCUMENT: REVIEWER: PECB, V. Hodge NEW ISSUE. Transient analysis results for end-of-cycle (EOC) might not always be limiting for the entire cycle. Some plants have operating limits that support operation in various equipment-out-of-service (EOOS) scenarios. A review of the impact of cycle exposure on the EOOS operating limits is ongoing. The only plant operation potentially affected by this ongoing EOOS evaluation is LaSalle Unit 2 Cycle 8. Preliminary results indicate that the only situation where the current limits may not provide adequate protection is operation below 30 percent power with the turbine bypass valves inoperable. This is an interim report; evaluation is to be completed December 15, 1997. _