ML023520296

Unsatisfactory Laboratory Result on Blind Performance Test Specimen

ML023520296
Person / Time
Site:	Browns Ferry, Sequoyah
Issue date:	12/16/2002
From:	Burzynski M Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML023520296 (2)

Text

Tennessee Valley Authority, 1101 Market Street, Chattanooga, Tennessee 37402-2801 December 16, 2002 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Gentlemen:

In the Matter of ) 10 CFR 26, Appendix A Tennessee Valley Authority UNSATISFACTORY LABORATORY RESULT ON A BLIND PERFORMANCE TEST SPECIMEN In accordance with 10 CFR 26, Appendix A, 2.8 (e) 4, enclosed are the investigative findings of Clinical Reference Laboratory (CRL) which serves as TVA's contract laboratory. CRL's investigation was initiated due to a false negative result on a blind performance test sample. This blind performance sample contained methaqualone and should have tested positive for methaqualone. Although not required by 10 CFR 26, TVA chooses to test for methaqualone, in some cases.

TVA's Fitness for Duty (FFD) Program management consulted CRL's management and determined that this incident occurred due a failure of the screening assay to detect methaqualone above the cutoff level. An interim measure has been implemented in which all specimens reading above 25 ng/ml on the methaqualone screening assay are automatically sent to gas chromatography/

mass spectrometry (GC/MS) for confirmation.

As part of TVA's FFD Program, TVA plans to continue monitoring CRL's performance through blind performance testing to prevent reoccurrence of this type error.

If you have any questions concerning this information, please telephone Terry Knuettel at (423) 751-6673.

Sincerely, Manager Nuclear Licensing o*

Enclosure cc: See page 2 Pmted on recycled paper

U.S. Nuclear Regulatory Commission Page 2 December 16, 2002 cc (Enclosure):

Mr. Luis Reyes, Regional Administrator U.S. Nuclear Regulatory Commission Region II Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 Mr. Ronald W. Hernan, Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Kahtan N. Jabbour, Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. L. Mark Padovan, Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 NRC Senior Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611 NRC Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379 NRC Resident Inspector Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, Tennessee 37381