ML20153B281
| ML20153B281 | |
| Person / Time | |
|---|---|
| Site: | Millstone, Davis Besse, Nine Mile Point, Palo Verde, Cooper, Duane Arnold, 05000000, Shoreham |
| Issue date: | 02/22/1988 |
| From: | Stanley L KAMAN INSTRUMENTATION CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| REF-PT21-88-024-000 PT21-88-024-000, PT21-88-24, NUDOCS 8803220026 | |
| Download: ML20153B281 (3) | |
Text
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e hGd R O. Box 7463 Colorado Springs,CO 80933 7463 (303)599-1500 KAMAN 55h@p[j'grQ)
February 22, 1988
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l9i U.S. Nuclear Regulatory Comission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011
Subject:
10CFR, Part 21 Gentlemen:
In accordance with the requirements of 10CFR21, Kaman Instrumentation Corporation hereby provides' notification of a defect in the operation of its gas monitors using fixed filters or moving filters as fixed filters (particulate and iodine channels) which may relate to a potential safety hazard.
The affected monitors are Kaman Models KMPIG, KMPIG (MF), KMPG, KMPG (MF) and KMCAM.
On February 10, 1988, 2:30 PM MST, ANPP (Palo Verde) submitted a verbal inquiry regarding the algorithm (software) of the subject monitors.
Preliminary testing conducted at Kaman resulted in identifying a possible algorithm error in the software that affected all the subject monitors.
On February 12, 1988, 2:00 PM MST, Mr. Barnes of the Region IV U.S. NRC was notified of the possible defect. An e::planation of the possible defect was given.
In addition, Utilities having these monitors were notified by phone and were provided with an interim solution until such time Kaman could identify the magnitude of the error.
On February 19, 1988, 11:00 AM MST, after completion of extensive testing by Kaman, Mr. Barnes of the U.S. NRC Region IV was notified that Kaman had verified an error in the software for the monitors previously identified and was reporting a 10CFR21 at this time.
The following information is provided as required in 10CFR21.21(3), parts i through viii.
(i) Name and address of individual infonning the Comission Mr. Lawrence A. Stanley, President Kaman Instrumentation Corporation 1500 Ga-den of the Gods Road i
Colorado Springs, Colorado 80907
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n February 22, 1988 (ii) Identification of the basic component supplied Radiation monitor Models KMPIG, KMPIG (MF), KMPG, KMPG (MF) and KMCAM.
(iii) Identification of firm supplying the basic component Kaman Instrumentation Corporation 1500 Garden of the Gods Road Colorado Springs, Colorado 80907 (iv)Natureoffailuretocomply A defect in the particulate and iodine channels of the Kaman radiation monitors. The defect involved an algorithm error in the software of the subject monitors. Monitors with moving filters are affected only when the filter type is operated in step rather than continuously moving mode.
The result is that after 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> following a filter change or step, an increase in indicated particulate or iodine activity is less than the actual being monitored.
(v) Date the information of defect was obtained (As explained in preceding text.)
l (vi) Number and location of basic components in use or supplied 1
Palo Verde Nuclear Generating Station Wintersburg, Arizona Units 1, 2 and 3 (5 monitors per unit)
Davis Besse Oak Harbor, Ohio (4 monitors)
Duane Arnold Palo, Iowa (3 monitors)
Nine Mile Point 2 Scriba, New York (12 monitors)
Cooper Station Brownsville, Nebraska (1 monitor)
Shoreham Brookhaven, New York (1 monitor)
Millstone 3 Waterford, Connecticut (11 monitors)
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- February 22, 1988 Westinghouse Philippines Morong, Bataan Luzon (1 monitor)
(vii)
Corrective Action, responsible organization, and time to complete the action Kaman is currently testing a modification to the software. The modification should be available by February 29, 1988.
Kaman is requesting that the affected utilities return the IC's (EPROM sets) containing the. software from the subject equipment for Kaman to update the software.
(vili)
Advice relating to defect being given to purchasers As an interim solution, Kaman recommends changing (or stepping) the filter, as a minimum, every 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.
Please contact our Customer Service Manager, Mr. Carey Matthews at (303) 599-1454, should you require additional information regarding this matter.
Also, please make a note that the Area Code will change from (303) to (719) effective March 5, 1988, i
Sincerely,
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llA r 2Wic:Let -
aN awrence A. Stanley /
President i
LAS:tt cc:
U.S. NRC Director Office of Inspection & Enforcement Washington, D.C.
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