JPN-91-020, Advises That Facility Long Term Pipe Support Insp & Evaluation Program Completed During 1990 Refueling Outage. Program Goal of Ensuring That Pipe Supports Comply W/ Applicable Installation Criteria Met
| ML20073J146 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 05/03/1991 |
| From: | Ralph Beedle POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| JPN-91-020, JPN-91-20, NUDOCS 9105080054 | |
| Download: ML20073J146 (5) | |
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May 3,1991 JPN 91020 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mall Station P1 137 Washington, D.C. 20555
SUBJECT:
James A. Fit: Patrick Nuclear Power Plant Docket No. 50-333 Long Term Pipe Support inspection and Evaluation Program Doar Sir:
Tho FitzPatrick Pipo Support inspection Program (PSIP) is now complete. Ali romaining pipo suppo:t inspections woro comploted during the 1990 refueling outago.
All supports in nood of rework or engincoring ovaluation have boon Idontiflod. The program's goal of ensuring that the pipo supports comply with applicablo Installation critoria havo boon mot.
Attachmont I summarizes the program. A total of 2851 pipo supports woro inspected. No pipe supports within the scopo of NRC Bulletins 79 02,79 07 and 7914 woro degradod to an extont that they throatoned system operability. However, five systems were temporarily declared inoperable as a result of problems with small boro pipo supports.
Many of the discropanclos that woro idontified during the inspoctions involved small acorrect details or minor wolding dofocts. In other casos, discropanclos resulted from design drawings which proscribed construction details that excooded Codo requiroments. Discrepancies like those have no offoct on the oporability of the support.
The A uthority will coordinato the pipo support rowork task with the FitzPatrick Inservico inspection (ISI) program, The p!po support rework task willincludo engineering evaluations, revisions to design drawings or the repair of loss significant deficienclos that do not impact operability. This will reduce the total personnel radiation doso (ALARA) and provido a significant cost savings by eliminating work that is duplicated by both the PSIP and the ISI programs. Drafting and engineering personnel will continue to supply those services necessary to completo the rework task. An estimato of 15,000 person-hours will complete the engineering and drafting activity. An estimato of 25,000 person hours will completo the rework task. This combined oflort will occur over the next six refueling outages.
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if you have any questions, please contact Mr. J. A. Grey, Jr.
Very truly yours,
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Raiph E. Boodle Exocutivo Vice Prosidont Nuclear Gonoration Attachmont oc:
Roglonal Administrator U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Office of the Residont inspector U.S. Nuclear Regulatory Commission P.O. Box 136 Lycoming, NY 13093 Mr. Brian C. McCabo Project Directorato 11 Division of Reactor Projects l/11 U.S. Nuclear Rogulatory Commission Mall Stop 14 82 Washington, D.C. 20555 i
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Attachmont I to JPN 91020 James A. FitzPatrici Nuclear Power Plant Final Pipe Support Program The following throo tables summarizo the status of the Pipo Support inspection Program (PSIP) as of March 1991, The left column labolod "lEB Scopo,' reprosonts pipo supports within the scopo of NRC IE Bullotins 79-02,79-07 or 7914. The column labolod *NYPA Scopo* are additional supports in the FitzPatrick PSIP but not within the scopo of tho throo Bulletins. The total number of supports within any ono catogory is the sum of two columns.
(For examplo: the tota' number of supports in the PSIP is 2246 + 605 = 2851.)
Tho PSIP has cost approximatoly $9,000,000. An additional $3,000,000 will be investod to completo tho two taske engincoring requiring approximately $750,000 and rowork roquiririg apptoximatoly $2,250,CvJ. The program has consumod 185,000 person hours and rosultod in a total radiation exposuro of 185 person Rom.
TABLEI GENERAL
SUMMARY
IEB NYPA Scopo Scopo 224G 605 Pipo supports in the FltzPatrick PSIP.
2246 005 Pipo supports inspected using PSIP procodutos.
225 151 Pipo supports accoptablo as found.
2021 454 Pipo supports unacceptablo as found due to physical or documentation deviations.
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Attachn.ont I to JPN 91020 TABLE 11 DEVIATION
SUMMARY
lEB NYPA Scopo Scopo 1496 272 Pipo Supports with minor dovlations. Minor deviations ata defined as: documentation errors, drawings without design details (liko wolding requirements, matorial typos, sizes or dimensions) minor wold quality dofocts and support identification requirements.
525 182 Pipo supports with significant deviations in this catogory can be further broken down into four subcategories:
IES NYPA Scope Scopo 357 98 Pipo supports with partially missing, undersized or poor quality wolds that could rosult in support overstross or falluto.
21 18 Pipo supports with members displaying signs of damago including bent rods, distorted load pins, or bent structural stool.
89 24 Pipo supports with looso fastonors or locking devices attributed to olthor vibration or construction dofocts.
58 42 Pipo supports with missing compononts or members attributable to oporational effocts or construction deficiencies.
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Attachmont I to JPN.91020 TABLE Ill OPERABluTY
SUMMARY
lEB NYPA Scopo Scopo 0
5 Systems dotormined to bo inoporablo after analysis of an inoporablo support.
18 27 Pipo support inspected and dolormined inoperablo after analysis.
222 118 Pipo supports operabia using PSIP proceduros but do not moot original design codos.
1731 304 Pipo supports with some deviations but operable and moot original design codos.
2021 43
- Total Discropancios 3
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