IR 05000285/1990015
| ML20012E925 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 03/22/1990 |
| From: | Clay Johnson, Stetka T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | |
| Shared Package | |
| ML20012E924 | List: |
| References | |
| 50-285-90-15, NUDOCS 9004090095 | |
| Download: ML20012E925 (7) | |
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APPEND 1X r
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U.S. NUCLEAR REGULATORY COMMISSION
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REGION lY f
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NRC Inspection Report: 50-285/90-15 Operating Litense: DPR-40 l
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C Docket: 50-285
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L Licensee: OmahaPublicPowerDistrict(OPPD)
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Nuclear Operations
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444 South 16th Street Mall
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Omaha, Nebraska 68102-2247 i
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L Facility Name:
FortCalhounStation(FCS)
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Inspection At:
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Inspection Conducted: March 5-9, 1990 l
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Inspector:
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C. E.~ J ohnstn, R ctor Ins rtor, Plant Date i
Sy e Sec n. Divi n f Reactor Safety i
Approved:
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/I. f. SMtra, Chief,' Plant 5fstems Section Dafte
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(Divisip of Reactor Safety
- Inspection Summary l
Inspection Conducted March 5-9. 1990 (Report 50-285/90-15)
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. Areas Inspected: Routine, unannounced inspection of testing of safety-related
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I pipe supports and restraints systems. This inspection included snubbers
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(hydraulic and mechanical) and pipe supports under the 10-year inservice
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inspection (ISI) plan.
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Results: Within the area inspected, no violations or deviations were
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identified. Management attention to the pipe support program was evident. The
l pipe support program has detailed procedures to govern the work, easily retrievable records, and qualified ISI personnel.
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DETAILS
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L 1.
PTRSONS CONTACTED
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- R. Acker, Quality Asstruw (f1A) 1uditor
- R. Andrews, Division Fmger; @olity Environment Affairs
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- C, Bloyd, Supervisrg, Fpdel Services Enaineer
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C. Brunnert, Supervisor., Operations, QA i
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- D. Dale, Supervisor, Quality Control (QC)
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. C, Huang, Supervisor, ilPES/RCA l
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- R. Jaworski, Manager, Station Engineering l
- J. Lechner, Lead Engineer, Mechanical
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- S. Lindquist Licensing Engineer
- D. Matthews, Supervisor
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- T. McIvor, Manager, Nuclear Projects
- W. Orr, Manager, QA/QC
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- G. Peterson, Plant Manager
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G. Readon, Welding Specialist, Special Services
- C. Simmons, Licensing Engineer
- R. Short, Supervisor, Special Services Engineering
- J. Skiles, Supervisor, Nuclear Projects
- T. Therkildsen, Supervisor, Nuclear Licensing i
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NRC
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- L. Gilbert, Reactor Inspector
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- T. Reis, Resident Inspector
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- L. Ricketson, Health Physics
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- Denotes those that attended the exit interview.
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The inspector also interviewed other licensee employees during the inspection.
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2.
TESTING OF PIPING SUPPORTS AND RESTRAINT SYSTEMS (70370)
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The purpose of this inspection was to determine if the surveillance, functional
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testing, repairs,-installation, inspection, and operation of pipe supports and-
,L restraints for safety-related piping and equipment is in conformance with Technical Specification (TS) plant procedures, and licensee commitments.
2.1 Shock Suppressors (Snubber) Program-i 2.1.1 Procedure Review
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The inspector reviewed licensee procedures pertaining to the surveillance,
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rebuilding and repair, and functional testing of safety-related hydraulic and mechanical snubbers. Procedures reviewed contained detailed instructions and
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licensee had established satisfactory procedures for all aspects of maintenance, testing, and operation of hydraulic and mechanical snubbers, Procedures reviewed are listed in the attach'nent, g
t 2.1.2 Functional Testing and Rebuilding of Snubbers l-The inspector observed the rebuilding of one hydraulic snubber and the functional testing of several others.
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. Rebuilding of the snubber was accomplished in accordance with the procedure.
Maintenance personnel did not omit any steps in the procedure. The maintenance h
craftsmen performing the work were knowledgeable of their required (
ressonsibilities and duties.
Functional testing was performed on the rebuilt snu)ber and was also observed on one additional snubber. The inspector
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observed that the functional testing was performed as required by procedure, t:
Results of the functional test were within acceptance criteria.
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Review of the calibration records for the hydraulic test system Mark III used
_ for the surveillance test indicated that the machine and its accessories were calibrated as required.
Functional test data reviewed and supports observed are listed below:
SupportsFunctionallyTested(Observed)
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' SIS-19-
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SIS-16
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Functional Test Data Reviewed
SIS-82A SIS-45
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SIS-32B SIS-18
.FWS-68A SIS-50
MSS-9A-E RWS-131
SIS-41A RWS-130
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SIS-172
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l The inspector concluded that the licensee's surveillance and functional testing for snubbers is in accordance with TS Section 3.14 j
2.2 InserviceInspection(ISI)ProgramforSupports 2.2.1 Procedure Review The inspector reviewed one procedure under the ISI program which pertained to
safety-related pipe supports and restraint systems. Procedure FC-VT-3/4, " Visual i
- Examination: VT-3 and VT-4 (Limited) " Revision 2, dated December 1, 1989, describes the requirements for Visual Examination VT-3 and VT-4 (limited) as stated by "ASME Boiler and Pressure Vessel Code,"Section XI (winter 1980 Addenda).
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-4-i This procedure included VT-3 inspection criteria for determining the. general mechanical and structural conditions of components and their supports, such as the presence of loose parts, erosion, corrosion, and the loss of integrity at
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l bolted or welded connections.
The VT-4 (limited) portion contained criteria to determine conditions relating to the operability of components, including recording / verification of settings.
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The inspector determined by review that this procedure was adequate.
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2.2.2 pipe Support Surveillance Review The inspector reviewed the licensee's records of current and previous ISI pipe support surveillances. Review of these records indicated the following:
Inspection procedures were followed;
Adequate acceptance criteria were utilized; When identified, deficiencies were recorded and forwarded to engineering
for evaluation;
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e Corrective action was implemented;
The frequency of visual inspections performed met requirements; and
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The sample selection of supports inspected this outage met the 10-year ISI
program.
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Records reviewed are listed in the attachment.
i The inspector concluded that the licensee's pipe support surveillance program l
was functioning as comitted to in the 10-year ISI program.
2.3-Visual Examination
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The inspector performed a visual inspection of pipe supports for both the ISI and snubber program inside containment. The inspection included the following
attributes:
Adequate hydraulic fluid in snubbers;
Evidence of fluid leaks through snubber seals;
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Corrosion or physical damage;
Tightness of bolts, nuts, and other fasteners;
Missing cotter pins;
Sufficient thread engagement;
Position indication for spring hangers;
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Condition of snubber extension;
Integrity of welds; and
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The piping system is not restricted with respect.to thermal expansion.
The supports inspected are listed in the attachment. No deficiencies were observed.
2.4 Conclusion
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The inspector determined that adequate programs and procedures are established and in place for the examination and testing of pipe supports and restraint L
systems. The inspector also concluded that the licensee is in accordance with
regulatory requirements, ASME code requirements, and Technical Specifications.
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3.
EXIT INTERVIEW The inspector met with the licensee personnel (denoted in paragraph 1) on March 9, 1990, and summarized the scope and findings of this inspection. No information was identified as proprietary.
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y ATTACHMENT i
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h Snubber Procedures t
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MM-ST-HSS-0002, " Refueling Inspection of Paul-Monroe Hydraulic Shock
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Suppressors (HSS) Units in the Containment," Revision 0, February 16, 1990.
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MM-ST-MSS-0001, " Visual Inspection and Functional Test of Safety-Related
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Mechanical Shock Suppressors,' Revision 1. February 27, 1990.
j MM-ST-HSS-0005,)" Refueling Inspection of Grinnell Hydraulic Shock
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Suppressor(HSS Units in Containment," Revision 0, January 28, 1990.
- MM-RR-HSS-0903, " Rebuilding Grinnell HSS Units with 5-Inch and 8-Inch Tomkins-Johnson cylinders," Revision 1, February 24, 1990.
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MM-RR-HSS-0902, ' Rebuilding of Grinnell HSS with 31/4-Inch Lynair cylinders," Revisions 1, February 24, 1990.
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MM-RR-HSS-0900 " Rebuilding of Bergen-Paterson Hydraulic Shock SuPpressor (HSS) Units," Revision 1. February 24, 1990
MM-ST-HSS-0004, " Refueling Functional Test of Hydraulic Shock Suppressors (HSS) Units," Revision 0, January 28, 1990.
- MM-ST-HSS-0001, " Inspection of Bergen-Paterson Hydraulic Shock Suppressor
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(HSS) Units In Containment."
- MM-ST-HSS-0003, " Inspection of Bergen-Paterson Hydraulic Shock Suppressors
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in the Auxiliary Building," Revision 0, January 20, 1990.
ISI Records Review SG-2-FB-1 VT-3 10-PSL-10/09-PR-1A(VT-3/VT-4)
SG-2-FB-2 VT-3 10-PSL-10/09-PR-3(VT-3/VT-4)
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SG-2-FB-3 VT-3
3-PSS-14/02-PR-1 VT-3)
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SG-2-FB-4 VT-3
3-PSS-14/02-PR-2 VT-3)
RCP-RC3C-FC-1(VT-3)
3-PSS-14/12-PR-2 VT-3/VT-4)
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RCP-RC3C-FC-2 (VT-3)
SG-2-FC-5 (VT-3/VT-4)
RCP-RC3C-FC-3 (VT-3)
28-MS-2001/15-PR-4(VT-3/VT-4)
RCP-RC3D-FC-1 VT-3 28-MS-2002/04-PR(VT-3/VT-4)
RCP-RC3D-FC-2 VT-3 3-FW-1/PS-FWS-1090(VT-3)
RCP-RC3D-FC-3 VT-3
2-FW-1/PS-FWSP-32A (VT-3)
2-FW-3/PS-FWSP-11 (VT-3)
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Supports'E amined
$15-165-5 S)
SIS-123(HS)
$1S-192(SC)
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SlH-209-
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SIS-159A
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SIS-165A(HS)
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'$15-118(
SIS-166
$1H-141(C)
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$15-167(
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SIH-140
$1S-168AHS)
h SIS-117A
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SIS-168 SIS-161( S)
$15-134(
$15-160 515-204) HS)
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SIH-148(
$15-2041-2(HS)-
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SS = Sway Strut HS,= Hydraulic Snubbers SC = Spring Can
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