ML20041F118
| ML20041F118 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 03/08/1982 |
| From: | Mineck D IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| DAEC-82-162, NUDOCS 8203160206 | |
| Download: ML20041F118 (4) | |
Text
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16wn Electr*w thbt-undul%c.Gmw.-
March 8. 1982 DAEC-82-162 Mr. James G. Neppler Regional Administrator
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Region III
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.rq De S: Necteer-Regulatory Comartssion-
.(7 799 Roosevelt Road I
h y ?Ecp;,jED j gi Glen..Ellyn. IL. 60137 hg*{hignsbh Sub.iect:
Prompt Notification of a'.
ReportablerC.c.e.. a -
File:. A-118a. TE-4 V.
\\
s Deer Mr. Kappler:
This letter, telecop.ied to.mur. office,.is intended to. satisfy. the_ requirement-for prompt notification of a Rep
- table occurrence in accordance with Specification 6.11.2.a of the Duane Arnold Energy Center Technical Specifications.
Technical Specification paragraph (s) violated:
Description of Dccurrence:
While performing operebflity testing on March 7.1982, the "B" control building standby filter unit (SSFU) train would not start with an initiation signal present.
The "A" S8FU had earlier been declared inoperable after a halogenated hydrocarbon test had indicated the charcoal atporter bank had a removal efficiency of 975.
The cause fo'r that probTem was: believed to be noisture in the charcoal absorber bank.
At the time the operability, test of the "8" SOFU was begun the "A" 38FU was being operated in an attempt to dry the charcoal absorber bank, The "B" 58FU performed as designed.
A SBFU train will not cuto start while the redundant train is running.
A 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> LCO was briefly entered untti the "B" S8FU was manually, started.
The p.lant is currently _ in a l
7 day LCO with the "A" S8FU declared inoperable but operating and the "B" SBFU l
cperating. -
The event was evaluated as a 14 day Reportable Occurrence due to one SBFU train being declared inoperabl6 and th'e redundant
- tiaih not~tieibg availbble f6r
-automatic initiation.
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2.
High level coolant sample was performed by only 1 person I
with no radio or teleph6ne communication.
3.
Checklist for stack sampling?
The tech did not have a key to stack.
4.
The stack sampling was performed by only one persor) who had his hands full.
Fumbled quite abit.
i 5.
Performed only one stack sample but iodine levels were in i
question.
Should have taken more stack samples during general emergency.
Somedeadareasarepresentinreaqtorbuildingwhere 6.
radio communication cannot be established.
i i
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p-Have a slight problem with communication of reactor status to OSC.
Coolant level?
For I. PSI closed value, sent crew of 3 with protective clothing and resp' rators with particulate filter.
For liigh level sample.of coo 14nt, people put on protective equipment and clothing.
Monitored area regularly.
Took sample quickly and performed a survey of area and then back in.
Had no radio or other meani, of communication with him.
Stacl; sample gross activity at 5E8 monitc>r in control room.
i Sample is initiated from control room and a gross activity is i
determined.
Arrived in guard house and realized that he did not have a stock key.
Brought ' key to guard house.
Kept up with dose rate
- well, Had difficulties with handling equipment by himself (could not get i n butiding for a 'while).
Displayed good ALARA principles.
Quictly obtained sample with extention tf1 and made a hasty retroat.
MHstake en activity given to toch by controller.
Went back j
through guard house and presented sample to lab.
Workorsforventused'protecthveclothing.
Plastic cover suits, and Scott air packs with full face protection.
Card reader would allow accet s to reactor building and had to check back (had a bad card).
l For vent valve maintenance, have designat,ed area for removal of outer prettetive clothing during return.
Have { difficulty with radio '-
contract at vent valve area because of structure, could walk a short distance and communicate.
Probl ems:
t l
l 1.
Difficult to understand speaker in breaker room, but does.
l have a phone.
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9:30 HP a: companied workers to turbine building to check on system.
9:33 Perf 3rmed survey at OSC includes smears.
9:34 Plan t evacuation alarm.
9:37 OSC vas not informed about reactor statu$ after being inform 2d 15 minu tes to ok at 9:20 9:41 Everfone punched in OSC complete has automatic smear detector.
Emerlency RWP's checklist are completed f'or each job.
9:46 Evaciation announcement made for west part of reactor building.
9:48 Stil l have not clarified reactor condition.
~~'
9:56 Drywell sample Chec e can and continuously monitored Open<ed communications at sample point Techi1cian was very familiar with procedures and quickly set up Then went to rad wast to wait to purge Used syringe for 15:1 dilution Recoanected and left at 10:05 10:14 Check core spray breaker monitored continuously and had telephone I
contact at area.
HP tech left.
By scen4rio, they had problems, i
replaced breaker and checked back reported it still would not start.
Difficult to understand speaker system from breaker room.
Personnel used frisker upon returning.
Equilneent of in-plant check surveys are handed out as RWP's are issuod.
Radiation status levels are displayed with a grease pencil ARM read'ng/ actual measured dose rate.
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