ML20086Q996

Interim Deficiency Rept Re Damage to Reactor Pressure Vessel Top Fuel Guide.Initially Reported on 720622.Mfg Representatives Contacted & Will Assess Damage.Rept Expected by Aug 1972

ML20086Q996
Person / Time
Site:	Peach Bottom
Issue date:	07/07/1972
From:	Boyer V PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Kruesi F US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20086Q971	List: ML20086Q969 ML20086Q987 ML20086Q996
References
NUDOCS 8402280643
Download: ML20086Q996 (2)

Text

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PHILADELPHIA ELECTRIC COMPANY l 23O1 M ARKET STREET PHILADELPHI A, PA.19101 (215)841-4500 m ,4 - .-

July 7, 1972 Mr. F. Kreusi, Director Directorate of Regulatory Operations United States Atomic Energy Commission Washington, D.C. 20545

Subject:

Interim Report of Damage to Peach Bottom Unit 3 Reactor Pressure Vessel Top Fuel Guide AEC Construction Permit Nos. CPPR-37 and CPPR-38 File: QUAL 2-10-2

Dear Sir:

In compliance with 10CFR Part 50.55 Paragraph (e) we are hereby sutmitting an interim report of the subject damage. The Philadelphia Electric Company discussed this incident by telephone with USAEC Division of Compliance Region I on June 22, 1972, after it was deter-mined that this may by a reportable incident.

It was reported to Philadelphia Electric Company on June 9, 1972 that on May 16, 1972, during erection of the structural steel in the Unit 3 Reactor Building, a diagonal brace (8" x 6" x 9/16" angle, 13' x 10-3/4" long, weighing approximately 360 lb.) slipped from its choker and dropped from an estimated height of 30 feet. It has been reported that the steel erection subcontractor was following accepted rigging procedures. The angle brace pierced the shipping container of the Top Fuel Guide and from what can be observed through the hole in the container has deformed two beams which make up the cells of the guide. The exact extent of damage to the fuel guide cannot be determined at this time, since the Unit 3 Reactor Building Crane is not yet operational.

The Manufacturer's representatives have been contacted and will assess the damage after the crane is put in operation and the Top Fuel Guide can be moved to a suitable location and uncrated for inspection.

Steps have been taken by our Architect-Engineer / Constructor to protect equipment stored in Unit 3 Reactor Building at Elevation 234, with planking and tarpulins. Structural steel erection has been com-pleted on the Unit 3 Reactor Building superstructures without further incident.

8402280643 721222 DR ADOCK 05000277 , )] vr PDR M 2 0980

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. .. . O O Page 2 In addition the Philadelphia Electric Company has initiated action and has directed our Architect-Engineer / Constructor to immediately review and improve the procedures to be followed for reporting apparent "incidenta" promptly to responsible personnel.

A detailed report will be filed after the inspection is completed and corrective action determined. It is expected that the inspection and the detailed report will be completed in August, 1972.

Very truly yours, V. S. Boyer Vice President Engineering & Research Department Copy to: J. P. O'Reilly, USAEC j