IR 05000259/1980014
| ML19305E632 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/21/1980 |
| From: | Ang W, Herdt A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19305E630 | List: |
| References | |
| 50-259-80-14, NUDOCS 8005200146 | |
| Download: ML19305E632 (3) | |
Text
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'o,, UNITED STATES ! NUCLEAR REGULATORY COMMISSION n g *Y
REGION ll "o 101 MARIETTA ST., N.W., SUITE 3100 Yg o ATLANTA, GEORGIA 30303
APR 1 1980 Report No. 50-259/80-14 Licensee: Tennessee Valley Authority 500A Chestnut Street Chattanooga, TN 37401 Facility Name: Browns Ferry Nuclear Plant, Unit 1 Docket No. 50-259 License No. DPR-33 Inspection at Browns Ferry Nuclear Plant near Decatur, Alabama Inspector: fA) 0 21-80 ,, W. P. An Date Signed Approved by: L [k 3/J/[[a A. R. Herdt, Section Chief, RCES Branch Date' Signed SUMMARY Inspection on March 13-14, 1980 Areas Inspected This routine, announced inspection involved 12 inspector-hours on site in the ares. of HPCI system piping and restraint work activities.
Results Of the area inspected, no items of noncompliance or deviations were identified.
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. DETAILS 1.
Persons Contacted Licensee Employees
- J. L. Harness, Assistant Plant Superintendent
- G. L. Jones, Outage Director
- R.
Cole, QA Coordinator
- T. Haney, Mechanical Maintenance Supervisor J. Miller, Back Shift Outage Supervisor NRC Resident Inspector R. Sullivan
- J.
Chase
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on March 14, 1980 with those persons indicated in Paragraph 1 above. Unresolved item 80-14-01, " incomplete HPCI system piping and restraint work" was discussed.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Items Unresolved items are matters about which more information is required to
determine whether they are acceptable or may involve noncompliance or deviations. New unresolved items identified during this inspection are discussed in paragraph 5.
S.
HPCI System Piping and Restraints - Work Activities During recent maintenance work on the HPCI system, the licensee replaced a cracked HPCI system turbine pedestal. Subsequent licensee inspections revealed that steam piping flanges to the turbine had become mis-aligned subsequent to disassembly. The licensee also noted that luga welded to the same piping as restrain 4 had moved beyond their corresponding box "I" beam restraints. To correct the piping misalignment, the licensee heated and . subsequently cooled the piping to re-align the piping. No procedure was available during the heating and cooling, no temperature controls, other ! than visual observation, were used, and there was no QA involvement. The resident inspector identified this as an item of noncompliance and requested
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' -2-j regional engineering assistance. An inspection of the piping, the restraints, the work already accomplished and the planned corrective action was conducted.
An inspection of the piping and restraints involved indicated a need for an IEB 79-02 and 79-14 re-inspection. The licensee indicated that this would be performed. An inspection of the work already accomplished indicated that two sections of piping were heated up.
One section appeared to the resident inspector to have been heated up previous to this heating operation.
A retro-fit procedure for the work accomplished was available. Repair records also were avai-lable. No heating controls other than visual obser-vation were noted on the records and no QC/QA involvement was identified.
The licensee indicated that the following actions will be taken to correct the condition: An IEB 79-14 re-inspection of the piping will be performed.
a.
b.
An IEB 79-02 inspection of support R1 will be completed.
The heated areas will be liquid penetrant inspecteed.
c.
d.
The heated areas will be ultrasonically tested.
The welds adjacent to the heated areas will be magnetic particle e.
inspected.
f.
A hardness test will be performed on the heated areas.
g.
A metallographic test will be performed on the heated areas.
i h.
The piping will be hydrostatically tested.
' i.
QA will write a corrective action report to determine the cause of the problem and to determine how it will be prevented in the future.
i J.
QA coverage will be provided for the inspection and testing noted above and any subsequent necessary repair activities.
f Pending licensee performance of the above noted tests and inspections, this shall be identified as unresolved item 80-14-01 " incomplete HPCI system piping and restraints work".
No items of noncompliance or deviations were identified.
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