ML20235N278

Annual Summary of Changes,Tests & Experiments Performed at Aerotest Radiography & Research Reactor for Jul 1986 - June 1987

ML20235N278
Person / Time
Site:	Aerotest
Issue date:	06/30/1987
From:	Lamb I, Newacheck R AEROTEST OPERATIONS, INC.
To:	Scarano R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8710060455
Download: ML20235N278 (5)

Text

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-ANNUAL

SUMMARY

'0F CHANGES, TESTS AND EXPERIMENTS PERFORMED AT THE AER0 TEST RADIOGRAPHY AND RESEARCH REACTOR i

i (ARRR) ,

DOCKET NO. 50-228 FOR PERIOD ENDING JUNE 30, 1987 BY I. E. LAMB REACTOR SUPERVISOR fy1 1

APPROVED BJ 2 _ ___

R ./ ' . NEWACHECK PRESIDENT AER0 TEST OPERATIONS, INC.

8710060455 870630 PDR ADOCK 05000228 i R PDR  %

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ggcIlgN_1 l E6BI_I_:_CU6NQEg A. During the year, only one fuel element was added to'the core. No other changes were made to the reactor proper.

B. The primary pump was rebuilt and the secondary portion of the heat exchanger was cleaned during the reporting period.

Both of these services were performed on off hours with' no resultant loss of normal operation.

E6BI_II_:,EX3E315ENI!

No new experiments were performed during the year. The experiments performed in this reporting period were as follows:

EXPERIMENT Nyd@gg 114 Neutron radiography performed in the radiography facilities.

116 Irradiation of hydrocarbon activation analysis samples.

120 Irradiation of plastic slides impregnated with microscopic quantities of fissionable materials for the McClellan Air Force Base and General Electric Company.

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i ARRR UNSCHEDULED POWER REDUCTIONS TYPE OF SCRAM CHANNEL AFFECTED Oper. Barth H0 '

1. - Date , Auto Man. Spur. Error Cal 1 2 3 4 Quake 2 Comments 1 7-30-86 X X X X X Power Failure I 2 7-30-80 X X X X X Power Failure l 3 9-09-80 X X X X X Power Failure )

4 1-15-8; X X X X X ?ower Failure 5 1-20-8; X X X X X X iigh Temp. l 6 3-17-81 X X X X X ?ower Failure'

'7 3-18-8) X X X- X X ?ower Failure 8 3-18-81 X X X X X X 11gh Temp.

'9 3-20-8) X X X X X X tigh Temp.

10 4-21-85 X X X X X 'ower Failure 11 6-09-8) X X X X X 'ower Failure 12 6-11-8] X' X X X X X :ligh Temp.

13 6-17-87 X X X X X X :ligh Temp.

14 6-18-87 X X X X X X liigh Temp.

m_____ _ _ _ _ _ . _ . _ _ _ _ _ _ _

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OPERATING KILOWATT ACCUMULATED EXPERIMENTS & UNSCHEDULED BoIE UgygS dQygg hg_Ugygg 18869161199g SyyIggWUS 7-86 158 39569 4873348 10 2 8-86 126 31445 4904793 6 0 9-86 143 35809 4940602 6 1 10-86 187 46816 4987418 9 0 I 11-86 139 34820 5022238 5 0 12-86 150 37401 5059639 3 0 1-87 165 41148 5100787 7 2  ;

2 163 40755 5141542 3 0 3-87 173 43360 5184902 6 4 4-87 195 48682 5233584 6 1 5-87 168 42045 5275629 7 0 6-aZ______193________4g245______5323@?4________?_____________6 Totals 1960 490095 5323874 75 14 I

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< 1 r..- l l E f RECElVED j l

T* AEROTEST OPERATIONS,156. l

%g 3455 FOSTORIA WAY . SAN RAMON, CAllFORNIA 945g.}4g8%12% [Q: $ \

1. ' REGION V  ;

24 July, 1987 l l

U.S.. Nuclear Regulatory Commission, Region V ,

l Division of Radiation Safety and Safeguards I l 1450 Maria Lane, Suite 210 Walnut Creek, Ca. 94596 Attention: Mr. Ross Scarano, Director

Subject:

Annual Summary of Changes, Tests and Experiments at Aerotest Radiography and Research Reactor (ARRR), Docket No. 50-228, for period ending 6/30/87

Dear Mr. Scarano:

The enclosed report summarizes the ARRR operations from July 1, 1986 t hrough June 30, 1987. This submittal complies with the requirements set forth in 10 CFR, part 50.59, " Authorization of Changes, Tests and Experiments." Summary forms of monthly opera-tions and unscheduled power reductions are included.

As shown in the summary table of unscheduled shutdowns, all of the events were occasioned by high water temperature (pool) and electric power failure. The set point for the temperature scram was raised to 125 degrees F and we elected to also service the l

heat exchanger. Since this service, we have experienced no further scrams from water temperature.

A new uninterruptible power supply (UPS) has been supplied by the original manufacturer and operates in a fully synchronized mode with the utility lines. We believe that this will-minimize even further our power failure scrams.

I Other than the above, no unusual problems have been noted during

the year and the reactor has been operating in a safe and reliable manner, l

i Very truly yours, AER0 TEST OP RATLC S, INC.

Irvin E. La Reactor Supervisor ,

Enclosure cc: Director of Inspection & Enforcement b{

U.S. Nuclear Regulatory Commission //-'

Washington, D.C. 20555 /

A suBslDI ARY OF

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