ML20128Q632
| ML20128Q632 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 05/15/1985 |
| From: | Kalivianakis N COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NJK-85-143, NUDOCS 8506040258 | |
| Download: ML20128Q632 (3) | |
Text
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Quad Cities Nuclear Power Station l
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Cordova, Illinois 61242 y_ t
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!!ay 15,1985 Janes G. Keppler, Regional Administrator Office of Inspection and Enforcement Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
Summary Status of Fuel Performance Quad-Cities Nuclear Power Station Unit One, Docket Number 50-254, LPR-29; Quad-Cities Nuclear Pouer Station Unit Two 50-265, DPR-30 Enclosed are the Special Reports, " Quad-Cities Nuclear Power Station, Unit One, Summary Status of Fuel Performance, End of Cycle Seven, !!ay 1985", and " Quad-Cities Nuclear Power Station, Unit Tuo, Sunmary Status of Fuel Performance, End of Cycle Seven, May 1985".
These reports are submitted to you in accordance with the Special Report Requirements of Tabic 6.6-1, Docket Number 50-254, DPR-29 ' (Unit One), and Docket Number 50-265, DPR-30 (Unit Two).
Respectfully, C0!HIONWEALTH EDISON COMPANY QUAD-CITIES NUCLEAR POWER STATION f
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is/hJOY N. J. Kalivianakis b Station Manager NJK:KPD/bb Enclosure cc B. Rybak D. Galle H. Bliss i
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-QUAD-CITIES NUCLEAR POWER STATION UNIT ONE SUIDIARY STATUS OF FUEL PERFORMANCE END OF CYCLE SEVEN Ifay 1985 At the-end of this reporting period, Quad-Cities Unit One had completed seven Reactor cycles of operation. During that time, 1768 fuel assenblics had seen duty in :the Unit One core.
In April, 1984, 551 fuel assemblies were tested using dry out-of-core sipping equipment.
Included in this total is a known leaker assembly discharged during a past refueling outage that was sipped to test the sensitivity of the equipment. Two failed fuel assemblies were identified; a total of 113 fuel assembly failures have occurred in Unit One.
Upon closer examination, it was determined that fuel rod C1, in bundle LY3056 (once-burned), and fuel rod F1, in bundle LJUO84 (twice-burned), had failed due to manufacturing defects. The bundles were reconstituted by General Electric (rod Cl in LJUO84 to LY3056, rods-C1 and F1 in LJB487 to LJUO84% successfully-sip tested,' and were installed in Unit One for further irradiation in Cycle Eight.
Additional testing and examination of the four Barrier Lead Test Assembles ~ (LJB586, 587, 588, and 589) was performed in April,1984.
All four assemblies were visually inspected, the water rods were replaced,
.and all fuel rod lengths were measured.
In addition, five rods out of each of the Zr liner assemblies (LJB586 and 587) were visually inspected, eddy current and ultrasonic tested, and profilometry tested. The Barrier Lead Test Assemblies are undergoing their. fourth cycle of irradiation in Cycle Eight.
For Unit One Cycle Eight, 196 new LY-P8X8R -(barrier clad)
. assemblies were 100' percent visually inspected and loaded.
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QUAD-CITIES NUCLEAR POWER STATION UNIT TWO
SUMMARY
STATUS OF FUEL PERFORMANCE END OF CYCLE SEVEN May 1985 At the end of this reporting period, Quad-Cities Unit Two had completed seven Reactor cycles of operation. During that time, 1855 fuel assenblies had seen duty in the Unit Tuo core. Of those 1855 fuel assemblies, 289 were determined to have failed and were discharged as leaker assemblies. All of the assemblies specified as being failed were of the' initial fuel batch 7X7 lattice CX or CY bundles.
In April, 1985,.78 fuel assemblies were tested using. dry out-of-core sipping equipment. Included in this total are:
two known leaker assemblies discharged during previous refueling outages (to test-sensitivity of the equipment), 16 barrier fuel ramp cell assemblies (from the Barrier Fuel Demonstration Project), 16 barrier fuel ramp cell' buffer assemblics, 28 miscellaneous barrier fuel assemblies, and 16 discharged non-barrier asse'mblies to be used in the EPRI-funded fuel decontamination program. No additional failed fuel assemblies were ident'ified.
For Unit Tuo Cycle Eight, 176' neu LYA-P8X8R (barrier clad) assemblies were 100 percent visually inspected and loaded.
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