Headquarters Daily Report AUGUST 28, 1995 *************************************************************************** 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 - REGION III AUGUST 28, 1995 Licensee/Facility: Notification: Detroit Edison Co. MR Number: 3-95-0148 Fermi 2 Date: 08/25/95 Newport,Michigan RESIDENT OFFICE TELECON Dockets: 50-341 BWR/GE-4 Subject: ENGINEERING DEPARTMENT REOGANIZATION AT FERMI Discussion: THE LICENSEE ANNOUNCED ORGANIZATIONAL CHANGES TO THE ENGINEERING DEPARTMENT. THE PURPOSE OF THE CHANGES IS TO ELIMINATE THE ENGINEERING BACKLOG AND MAKE PLANT ENGINEERING MORE RESPONSIVE TO DEAL WITH ONGOING TECHNICAL ISSUES AT THE PLANT. TO THIS END, THE ENGINEERING DEPARTMENT HAS BEEN REORGANIZED INTO THREE GROUPS: SYSTEM ENGINEERING, PLANT SUPPORT ENGINEERING, AND A BACKLOG REDUCTION TEAM. THE BACKLOG REDUCTION TEAM WAS FORMED FROM APPROXIMATELY 25 ENGINEERS FROM PLANT SUPPORT ENGINEERING, INCLUDING THE CURRENT DEPARTMENT HEAD AND ALL BUT ONE OF THE FORMER SUPERVISORS. PLANT SUPPORT ENGINEERING MANAGEMENT WILL BE BACKFILLED WITH CONTRACTOR PERSONNEL. THESE CHANGES ARE EXPECTED TO BE IN EFFECT THROUGH SEPTEMBER 1996. Regional Action: INFORMATION ONLY. Contact: M. PHILLIPS (708)829-9637 _ REGION IV MORNING REPORT PAGE 2 AUGUST 28, 1995 Licensee/Facility: Notification: Pacific Gas & Electric Co. MR Number: 4-95-0099 Diablo Canyon 1 Date: 08/28/95 Avila Beach,California Licensee to SRI Dockets: 50-275 PWR/W-4-LP Subject: DAMAGE TO INSTRUMENT GUIDE TUBE DISC DURING NEW FUEL RECEIPT INSPECTION Discussion: On August 23, 1995, during the licensee's receipt inspection of a new Westinghouse fuel assembly, the top nozzle instrument guide tube disc (plug) was noted to have broken loose from the four tack welds holding it in place. The disc is approximately 0.56 inches in diameter by 0.20 inches thick, with a 0.104 inch hole in the center. The purpose of the disc is to limit core bypass flow through the instrument tube and prevent flow induced instrument tube vibration. The problem was noted during the licensee's check of the instrument guide tube, which involved insertion of a metal rod the entire length of the tube to verify tube clearances. During manual insertion of the rod, a change was noted in resistance. A visual check of the top of the fuel assembly revealed the metal inspection rod was protruding from the top nozzle with the instrument guide tube disc laying on the top of the nozzle block. The licensee believes that separation of the disc occurred as a result of inserting the metal rod too far into the guide tube during the inspection. Three other assemblies, which were previously inspected, were inspected for similar damage. Of the three assemblies, one was found with the plug laying loose on top of the fuel rods, another was found with three of the four tack welds broken, and the third was found to be intact. The licensee is performing an examination of the broken tack welds. Also, the licensee plans to perform an inspection of the 57 new Westinghouse fuel assemblies which have been placed into the Unit 1 spent fuel pool and all of the other spent fuel of similar design. The licensee reviewed the core video maps taken following the latest Unit 1 (1R6) and Unit 2 (2R6) core reloads and determined that the top nozzle was visible on approximately two-thirds of the assemblies. None of the guide tube discs were noted to be missing in any of the fuel assemblies which were visible on the tapes. The licensee has performed an initial evaluation of the potential impact of instrument guide tube discs breaking loose during reactor operation. The evaluation addressed the following concerns; increased core bypass flow through the instrument guide tube and the effect on PCT and DNBR margins; vibrational effects (fretting) of the instrument guide tubes as a result of the increased flow through the tubes; and loose parts concerns. The licensee has informed Westinghouse of the problem and is working with Westinghouse to refine the initial assessment of the problem. REGION IV MORNING REPORT PAGE 3 AUGUST 28, 1995 MR Number: 4-95-0099 (cont.) Regional Action: A conference call was held with licensee, Region IV, and NRR personnel to discuss the licensee's evaluation of the matter. The Senior Resident Inspector is closely following the licensee's response. Contact: H. Wong (510)975-0296 M. Tschiltz (805)595-2354 _ REGION IV MORNING REPORT PAGE 3 AUGUST 28, 1995 Licensee/Facility: Notification: Nebraska Public Power District MR Number: 4-95-0100 Cooper 1 Date: 08/28/95 Brownville,Nebraska From Licensee Dockets: 50-298 BWR/GE-4 Subject: STATION MANAGEMENT CHANGES Discussion: Regional management was informed on August 25, 1995, of management changes at the Cooper Nuclear Station. The current Operations Manager, Mr. P. DiRito, has been reassigned to a senior engineering position. The current Maintenance Manager and former Plant Manager prior to July 1994, Mr. R. Gardner, has been designated as the Operations Manager, and the current Maintenance Planning Supervisor, Mr. M. Unruh, has been designated as the Acting Maintenance Manager. A permanent selection for the Maintenance Manager position is expected within 1 month. The changes were effective on August 25, 1995. The Site Manager held an all hands meeting with station personnel this morning to explain the changes and indicated they were not the result of any events but were a reconstitution of the management team. Regional Action: No followup regional actions are planned. Contact: T. Reis (817)860-8185 _