Part 21 Report - 1997-783
ACCESSION #: 9803110201
Coltec Industries Fairbanks Morse
701 White Avenue
Beloit, WI 53511-5492
SUPPLEMENT NO.: 97-002-02
To: Document Control Desk
U.S. Nuclear Regulatory Commission
Washington, DC. 20555
From: Coltec Industries - Fairbanks Morse Engine Division (FMED)
Date: 3 March 1998
Subject: Weldments on Opposed Piston and Coltec-Pielstick Emergency
Stand-By Diesel Gen-Set Lube-Oil and Jacket Water Piping
This supplement to the Interim Letter dated 30 September 1997, and to
supplement 97-002-01 dated 18 December 1997, is intended to inform the
U.S. Nuclear Regulatory Commission, and the affected nuclear utilities on
the progress of the root cause investigation, and corrective/preventative
actions associated with the Coltec-FMED Part 21 File No. 97-002.
Supplement 97-002-01 stated that "Results from the burst test should be
available by the end of January 1998, at which time the review of
customer contract requirements should also be complete. A final letter
of notification should be available by the end of February 1998.".
The burst testing portion of the investigation is complete. Twenty-two
welded joints were individually pressurized between 2100 psig and 5000
psig, and then evaluated. A draft copy of the engineering report text is
attached. The preliminary conclusion is that the welding of the joints
is adequate for the service intended, and that no steps need to be taken
to replace or rework piping runs in the field.
Yet to be completed are the metallurgical portion of the investigation,
and the review of customer contract requirements. These are scheduled to
be completed by the end of April 1998, at which time a final notification
should be available.
The attached engineering report references appendices A through E.
Appendix C exhibits photos of the sections of piping as received.
Appendix D exhibits photos of the test sections after completion of the
burst testing. Appendix E provides a summary of the detailed analysis of
each of the tested joints, which includes metallurgical investigation
results. These three appendices (C, D, and E) are not included in this
supplement. They will be included in the final notification.
Jeanne A. Conway
Quality Assurance Engineer
Vice President, Engineering
Cc: M. Armfield
A division of Coltec Industries Inc.
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