ML20154A991
| ML20154A991 | |
| Person / Time | |
|---|---|
| Site: | 05000131 |
| Issue date: | 02/14/1986 |
| From: | Turcotte R DEPT. OF VETERANS AFFAIRS MEDICAL CENTER, OMAHA |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 636-151, NUDOCS 8603040196 | |
| Download: ML20154A991 (2) | |
Text
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Medical Center 4101 Woolworth Avenue Omaha, NE 68105 M Veterans
%E# Administration February 14, 1986-in p,p,y n,,, To:
636/151 I -@ @ $ m yg=[y' r
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Region IV
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FEB ? 0 M "jl United States Nuclear Regulatory Commission l!
Office of Inspection and Enforcement 611 Ryan Plaza Drive q
Suite 1000
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Arlington, TX 76011 g
SUBJ:
10CFR50.59 Report REF: License R-57 1.
The following report is submitted for the period January 1, 1985 to December 31, 1985 in accordance with paragraph 50.59 Title 10 Code-of Federal Regulations.
2.
During the above period there were no changes in facility design, performance characteristics, operating procedures or tests which require inclusion in the annual report.
3.
The quarterly fuel element surveillance tests indicate that the inspected elements were in good condition.
4.
The energy generated by the reactor during the reporting period was as follows:
January, 1985 712.82 KWhrs February 1,062.55 March 1,384.64 April 1,391.18 May 1,313.54 June 835.26 July 1,450.37 August 1,208.68 September 229.89 October 1,224.85 November 907.18 December 1,893.22 13,614.18 5.
During the report period there were two unscheduled shutdowns. The first was caused by a hospital-wide power outage, and the'second was caused by a linear recorder scram due to the fact that the automatic power control did not function.
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Page 2 6.
Maintenance problems and the corrective maintenance performed during the period were as follows:
Winding of water chiller compressor shorted out - compressor a.
replaced.
b.
Recorder reference calibration battery replaced.
c.
Recorder chart motor drive switch shorted out to chassis preventing chart motor from being shut off - switch replaced.
d.
Shim rod indicator drive belt replaced.
Preventive maintenance performed on recorder - all tubes replaced.
e.
f.
Leak in receiver end of pneumatic transfer tube - sealed by putting epoxy on hole, wrapping outside of tube with 99.7% pure titanium and coating titanium with epoxy.
g.
Mixed bed deionizing resin changed.
h.
Log count rate meter would not read < Icpm when source removed.
Percent power and high voltage scram annunciator lights would not light. Percent power scram would not drop the control rods -
replaced C-1 and C-2 electrolytic condensers in control console.
The problems were caused by the bad condensers not filtering out the A.C. in the circuit. The resulting noise also affected the log count rate meter.
7.
Summary of radioactive effluents released or discharged beyond the effective control of the license:
a.
Liquid - none b.
Airborn - less than 0.1 C1 c.
Solid - none 8.
The reactor continues to be used as a neutron source for neutron activation analysis of biological samples and for hot atom chemistry research.
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s R. L. TURCOTTE Director cc: Director of Inspection and Enforcement, USNRC Document Control Desk, USNRC
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