ML20095L476
| ML20095L476 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 08/15/1984 |
| From: | Jens W DETROIT EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 50, EFP-69283, NUDOCS 8408300257 | |
| Download: ML20095L476 (3) | |
Text
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3 7-cayne H. Jens.-
Vice Prssident ~
Nuclest Operations Ferm4-2 6400 Nortn Dixie Highway -
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August 15, 1984 EF2-69283 Mr. James G.
Keppler Regional Administrator
.U.
S. Nuclear Regulatory Commission Region III 799 Roosevelt' Road Glen Ellyn, Illinois 60137
Dear Mr. Keppler:
Reference:
'(1)
Fermi 2 NRC Docket No. 50-341 (2)
- Letter, D. A. Wells to J.
G.
- Keppler, February 10, 1982, EF2-55874 (3)
- Letter, D. A. Wells to J.
G.
- Keppler, November 2 4, 1982, EF2-61203
Subject:
Final Report of 10CFR50. 55(e) Item 50 "5/8 Inch Parker-Hannifin Stainless. Steel Tees" This is Detroit Edison's final report of Item 50, " Linear Indications in Parker-Hannifin Stainless Steel Tees."
Item 50 was originally reported as a potential deficiency on January 12, 1982, and was documented in Reference (2).
That letter (Reference 2) was considered a final report.
Subsequently, Reference (3) was initiated as an interim report when the deficiency recurred.
Description of Deficiency Detroit Edison received fifty 5/8" O.D. 3000 #SW (heat 215F) stainless steel tees.
During installation, three of these had cracks open up during welding.
Verification was made that all three were from the same heat, HT0215F.
Cracking indications were found on a dye penetrant check test of new tees from this heat which were still in the warehouse.
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IMr.' James G. Keppler F
August 15, 1984 EF2-69283
-PageL2-Parker-Hannifin was notified, _ action was taken to identify and remove the affected fittings from the plant and the warehouse.' At this point, the problem was thought to be corrected.
l Subseque'ntly, as reported in Reference (3), other' Parker-Hannifin 5/8 inch. tee fittings (heats Ol9F and 043F) were identified as having linear indications.
-Analysis of Safety Implications Defects in 5/8 inch stainless steel tees could. result in the
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failure.of the tee.
These fittings are primarily used for instrument and' control or vent and drain lines.. Failure of these components could cause loss of safety' component control
.. functions or system integrity.
Corrective Action The following corrective actions have been taken to correct this deficiency:
o All safety related systems that could have utilized these tees were identified.
A review of the documen-tation for these safety related systems was performed and all tees from the affected heat numbers were liquid penetrant tested and accepted or cut out and replaced.
o Of the fifty tees received from Parker-Hannifin from heat 0215F, twenty-two were installed in the plant, but have since been replaced; twenty-six were identified and segregated before installation in the plant; and two' remain unaccounted.
Based on a review of documen-tation, the two unaccounted teos are not installed in safety related systems.
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o A total:of fifty tees from heats Ol9F _ and 043F were received from Parker-Hannifin.
Of these, thirty were installed.in the plant but have since been removed; three were identified and segregated before_installa-tion; two were. installed but have been accepted by liquid penetrant test and fifteen remain unaccounted.
Based on a review of documentation, the fifteen unaccounted tees are not installed in safety related systems.
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' Mr.iJames G. Keppler
+J August 15,.1984
- EF2-69283 Page.3 -.
o:
'In addition, the: Heat-Cards and the Receiving
. Inspection' Reports were-marked " Reject" to prevent acceptance.or turnoverlof safety related systems with
. tees from the affected. heat numbers.
- This:is Detroit Edison'.s-final report on'.this item.'
If you have questions concerning this matter, please contact Mr.~ Lewis P. Bregni, ( 313 ) n 586-5083.
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Sincerely, cc:
Mr.
P. M.
Byron
.Mr..R.-C.
DeYoung.
Mr. R.
C. Knop e
s i
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