ML20101P277

Final Deficiency Rept,Item 141 Re Deviations from Specified Clearance Between Cable Trays & Vertical Support Members. Initially Reported on 841107.Item Not Reportable Per 10CFR50.55(e)

ML20101P277
Person / Time
Site:	Fermi
Issue date:	12/18/1984
From:	Jens W DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
141, EF2-70227, NUDOCS 8501070093
Download: ML20101P277 (2)

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' Newport, Mchigan 48166 December-18, 1984

('***** EF2-70227 Mr. . Tames G. Keppler Regional Administrator' Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

References (1) Fermi 2 NRC Docket No. 50-341 (2) Letter, W. H. Jens to J. G. Keppler, November 30, 1984, EF2-70044

Subject:

Final Evaluation of 10CFR50.55(e) Item 141

" Deviations from Specified Clearance Between Cable Trays and Vertical Support Members" Detroit Edison has completed its investigation of Item 141,

" Deviations from Specified Clearance between Cable Trays and Vertical Support Members" and has determined it is not { '

reportable under 10CFR50.55(e). Item 141 was originally reported as a potential deficiency on November 7, 1984, and was suosequently documented in Reference (2).

At Detroit Edison's request, Sargent & Lundy Engineers eval-uated the tray / hanger clearance for a sample of 42 hangers in the Auxiliary Building and Residual Heat Removal Complex.

This sample had been selected to emphasize hangers expected to be most sensitive to variations in the location of the cable tray on the hanger. Those deemed most sensitive included hangers with large widths 'that could permit sig-nificant variation in the tray location, "L" shaped and cantilevered hangers, and hangers with reduced design loads '

close to the actual loads. All of these hangers were found to be acceptable. Therefore, Detroit Edison has concluded that this deficiency would not have adversely affected the safety of the plant.

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Mr. James G.-Keppler December 18, 1984 EF2-70227 Page'2 Additionally, as .previously committed, a review of the cable tray general notes drawings (6E721-2808-1 and 6E721-2808-3) is being performed to identify any other requirements not

implemented. No deficiencies have been identified to date.

This review is still in progress and is scheduled for completion prior to December 31, 1984. Any deficiencies identified will be documented,in'accordance with Fermi 2 procedures and evaluated for reportability accordingly.

This is Detroit Edison's final, report on Item 141. If you have questions concerning this matter, please contact-Mr.

Lewis Bregni, (313) 586-5083.

Sincerely, f

cc: P.'M. Byron R. C. DeYoung R. C. Knop USNRC, Document Control Desk Washington, D.'C. 20555

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