ML20078B381

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Part 21 Rept Re Matrix Actuator Model 33122-SR 80.Mounting Bolts Loosened & Spring Return Cylinder Began to Separate from Ctr Body of Actuator.Investigation Being Conducted by Xomox Corp
ML20078B381
Person / Time
Site: Hope Creek, 05000000, Hartsville, Phipps Bend
Issue date: 09/06/1983
From: Cox W
BIF (SUBS. OF GENERAL SIGNAL CORP.)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
REF-PT21-83-981-000 PT21-83-981, PT21-83-981-000, NUDOCS 8309270019
Download: ML20078B381 (1)


Text

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September 6, 1983

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Director Office of Inspection and Enforcement (s

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U.S. Nuclet-Regulatory Commission Washington, DC 20555

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Certified Mail - Pl7 6904595 Gentlemen:

Pursuant to the requirements of 10CFR Part 21, BIF is hereby notifying the Commission of a deviation which could create a substantial safety hazard.

On August 26, 1983, a Matrix actuator - Model 33122-SR 80 - was under test at Wyle Laboratories, Alabama, in accordance with the seismic requirements of IEEE 382-80, when a loosening of the mounting bolts occurred and the spring return cylinder began to separate from the center body or the actuator.

The test was terminated at this point and was considered to be a failure.

This test was conducted under a contract between Xomox Corporation, Cincinnati, 0 11, and Wyle Labor-atories.

Investigation of the failure and initiation of a corrective action program is being conducted by Xomox Corporation.

Results of this in-vestigation and corrective action recommendations are expected to be furnished by Xomox as soon as available.

Pertinent test data regarding the failure is not in BIF's possession at this time.

Butterfly valves shipped by BIP having this model actuator are:

QUANTITY LOCATION 8

Ilope Creek Station el

  • 3
  • 12 TVA Hartsville Plant B
  • 12 TVA Phipps Bend Unit 2
  • These have Matrix Model 45122 SR 100, which is generically ggg similar.

oma BIF customers have been made aware of this situation.

MO COO Sinccpaly, y

Q G n / M, OS W. R. Cox y< Director, Quality Assurance om BIF - A Unit of General Signal m@m 1600 Division Road West Warwick, RI 02893 _}}