ML19343D394
ML19343D394 | |
Person / Time | |
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Site: | Fermi ![]() |
Issue date: | 04/24/1981 |
From: | Wells D DETROIT EDISON CO. |
To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
References | |
10CFR-050.55E, 10CFR-50.55E, EF2-49-965, NUDOCS 8105040405 | |
Download: ML19343D394 (2) | |
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Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
MONTHYEARNRC-97-0141, Deficiency Rept Re Malfunction of EDG Number 11 Automatic Voltage Regulator (AVR) Printed Circuit Board Rev B,Due to Failure of Operational Amplifier U8 Chip.Avr Board Rev B Was Sent Offsite to Independent Engineering Facility1997-12-23023 December 1997
[Table view]Deficiency Rept Re Malfunction of EDG Number 11 Automatic Voltage Regulator (AVR) Printed Circuit Board Rev B,Due to Failure of Operational Amplifier U8 Chip.Avr Board Rev B Was Sent Offsite to Independent Engineering Facility ML20211M6491997-10-0808 October 1997 Addenda 1 to Part 21 Rept Re Weldments on Opposed Piston & Coltec-Pielstick Emergency stand-by Diesel gen-set lube-oil & Jacket Water Piping Sys.Revised List of Potentially Affected Utils to Include Asterisked Utils,Submitted ML20211H7911997-09-30030 September 1997 Part 21 Rept Re Failure of Weldment Associated w/lube-oil Piping Sys on 970804 at Millstone,Unit 2.Root Cause Is Not Yet Known.Quality of Weldment Is Being Considered.Listed Util Sites Affected NRC-97-0005, Part 21 Rept Re 961113,EDG 11 Failed Surveillance Test 24.307.01 for LOP Coincident W/Loca.Avr Board Rev B Was Sent Offsite to an Independent Engineering Test Facility. CA Include More Analysis & Testing of AVR Board1997-02-0606 February 1997 Part 21 Rept Re 961113,EDG 11 Failed Surveillance Test 24.307.01 for LOP Coincident W/Loca.Avr Board Rev B Was Sent Offsite to an Independent Engineering Test Facility. CA Include More Analysis & Testing of AVR Board NRC-94-0072, Part 21 Rept Re Improper Installation of Thermo-Lag Fire Barrier Matl Furnished & Delivered by Thermal Science,Inc. Eight of Ten Thermo-Lag Fire Barriers Installed by Pr Sussman Co Being Replaced1994-08-15015 August 1994 Part 21 Rept Re Improper Installation of Thermo-Lag Fire Barrier Matl Furnished & Delivered by Thermal Science,Inc. Eight of Ten Thermo-Lag Fire Barriers Installed by Pr Sussman Co Being Replaced ML20070H1471994-07-15015 July 1994 Part 21 Rept Re Problems W/Thermolag Fire Barriers.Initially Reported on 940715.Replaced Thermolag Fire Barriers ML20059H7721994-01-17017 January 1994 Part 21 Rept Re Virginia Power Notifying Fairbands Morse Via Failure Analysis Rept NESML-Q-058 of Defective Air Start Distributor cam,16104412 ML20059F2631994-01-0707 January 1994 Part 21 Rept Re Air Start Distributor Cam Mfg by Fairbanks Morse.Mfg Suggests That Site Referenced in Encl App I Inspect Air Start Distributor Cam as Soon as Practical ML20058G5981993-11-17017 November 1993 Part 21 Rept Re Westronics Recorders,Model 2100C.Signal Input Transition Printed Circuit Board Assembly Redesigned to Improve Recorder Immunity to Electromagnetic Interference.List of Affected Recorders & Locations Encl ML20057G1511993-10-0707 October 1993 Part 21 Rept Re Westronics Model 2100C Series Recorders. 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April 24, 1981 EF2-49,965 Mr. James G. Keppler, Director Region III U.S. Nuclear Regulatory Ccrnission 799 Rocsevelt Road ,
Glen Ellyn, Illinois 60137
Subject:
Interim Repcrt of 10CFR50.55(e) Item en Spacing of Cencrete Anchors (442) .
Dear Mr. Keppler:
On March 26, 1981, Detroit Edisen's Mr. H.A. Walker, Supervisor - Cen-structicn Cuality Assurance, telephcned Mr. G. Fiore11i of NRC Regicn III, to report en a problem with spacing of cencrete anchors at the Fermi 2 Site.
These anchers wurn used to support pipe suppcrts, cable trays, air condi-tiening ducts and other items. Mini:=n spacing is specified on engineer-ing documents and a neber of installations have been noted where this minimum spacing require:aant has been violated. This appears to be occur-ing in areas where two different centractors are rounting supports adja-cent to each other. For instance, a neber of cases were noted where piping supports and cable tray or ccnduit suppcrts were mounted sida by side. Apparently, construction perscnnel as well as quality contrcl inspectors were not paying c1csc attenticn to other contractors irstalla-tions.
Another report en this item, either interi:n or final, is scheduled to be sent to you cn or before Aucust 21, 1981. If ycu have questicns concern-ing this ratter, please contact Mr. H.A. Walker, Supervisor - Ccnstruction Quality Issurance.
Very truly ycurs,
- r Donald A. Wells, Manager Quality Assurance D;JJ/HAN/pn O
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- i Mr. James G. Keppler, Director April 24, 1981
- Page Two EF2-49,965 cc: Mr. Victor Stello, Jr., Director Office of Inspection and Enforcement Division of Reactor Inspection Progra:rs U.S. Nuclear Regulatory Ccratission Washington, D.C. 20555 Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Ccr:rlssion Resident Inspectors Office 6450 North Dixie Highway Newport, Michigan 48166 1
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