United States Nuclear Regulatory Commission - Protecting People and the Environment

ACCESSION #: 9504100276

BETTIS CORPORATION       18703 GH Circle
Actuators & Controls     P.O. Box 508
                         Waller, Texas 77484
                         Tel: 713/463-5100
                         Fax: 713/463-5103

April 6, 1995

US Nuclear Regulatory Commission
Office of Inspection & Enforcement
Washington, DC 20555

Attention:  Document Control Desk
Subject:    10CFR21 Notification

This formal notification concerns the potential spring problem with
Bettis Actuator, model NHD732-SR80, furnished in 1991 - 1992.

This notification was generated by an isolated warranty repair request. 
During the evaluation process it was determined the failure was due to a

broken spring.  The actuators were shipped in 1990 and have been in
service for two (2) years, stroking every five (5) minutes continuously
for twenty-four (24) hours a day in a hydrogen fed service, in a high
cycle commercial application.

The following customers have been notified by Federal Express this date. 
The corrective action report associated with this notification is CAR
#0057.

     Customer            Purchase Order      Bettis S.O.    Serial No.

     C & S Valve         TDN-01026           91-9000A            1
     C & S Valve         TDN-01030           91-9001A            1
     Enertech             57929-3            91-9008A           1-3
     Enertech             58712-4            92-9004A           1-2
     Neles Jamesbury       16140             91-9015A           4-21

The spring supplier was removed from the Bettis Approved Vendor List in
1992.  Inventory has been purged, to verify that all springs (P/N 013752)
from Coiling Technology have been removed.  Customers are requested to
contact Bettis for additional information or concerning the spring
replacement.

Cordially,

Anthony T. Locascio
Manager of Quality Assurance & Safety


                               Fax Message

                                  From


                              VANESSA LANE

BETTIS                                  Msg. #:
P.O. Box 508
Waller, TX 77484                        # Pages:            2
Phone: (713) 463-5100

Company:       US Nuclear Regulatory    Date:          April 6, 1995
               Commission

Attention:     Document Control Desk    Reply to:      X    713/463-5103

Fax #:         (301) 415-2260                               713/463-5153

Ref / Subj:    10CFR21 Filing

Please see the attached 10CFR21 notification.  If there are any questions
please feel free to contact myself or Tony Locascio at (713) 463-5110.


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