User not logged in - login - register
Home Calendar Books School Tool Photo Gallery Message Boards Users Statistics Advertise Site Info
go to bottom | |
 Message Boards » » NRC Event Report #44991 Page [1]  
humandrive
All American
18286 Posts
user info
edit post

Sorry if I'm late on this. Someone fill me in on this. I know one of you tdubers out there has some info. PULSTAR hasn't been updating his facebook page lately.

Research Reactor Event Number: 44991
Facility: NORTH CAROLINA STATE UNIVERSITY
RX Type: 1000 KW PULSTAR POOL TYPE
Comments:
Region: 2
City: RALEIGH State: NC
County: WAKE
License #: R-120
Agreement: Y
Docket: 05000297
NRC Notified By: GERALD WICKS
HQ OPS Officer: JOHN KNOKE Notification Date: 04/14/2009
Notification Time: 16:00 [ET]
Event Date: 04/10/2009
Event Time: 09:30 [EDT]
Last Update Date: 04/14/2009
Emergency Class: NON EMERGENCY
10 CFR Section:
NON-POWER REACTOR EVENT
Person (Organization):
MALCOLM WIDMANN (R2)
DUANE HARDESTY (NRR)

Event Text
VIOLATION OF LIMITING CONDITIONS IN TECHNICAL SPECIFICATION 3.5B

"On Monday, 13 Apr 2009 at approximately 9 AM, the stack sample pump was observed to be off. On Friday, 10 Apr 2009, the reactor operated from approximately 11 AM to 4 PM.

"Upon investigating this situation it was learned that at approximately 9:30 AM on 10 Apr 2009 the stack sample pump apparently lost power. The stack pump remained off until being re-started on 13 Apr 2009.

"Technical Specification (TS) 3.5b requires the stack particulate and stack gas radiation monitoring channels to be operable during reactor operation. With the stack sample pump off, neither of these two channels were operable during reactor operation on 10 Apr 2009. The Auxiliary GM may serve as a substitute for one of the two required channels. As a result, the reactor was operated on 10 Apr 2009 in violation of TS 3.5b.

"This event is a reportable event as defined in TS (1.2.24d and 6.6.2) under TS 6.7.1 since both channels were not operable as required by the Limiting Conditions for Operation TS 3.5b. The US Nuclear Regulatory Commission (NRC) was notified by telephone on 14 Apr 2009 at approximately 4 PM. The event will be investigated further with a detailed explanation of the event and actions taken and planned to prevent recurrence. The NRC will be given a written report on or before 24 Apr 2009.

"Consequences of this event were not significant. Other radiation monitors were in service to monitor airborne radioactive effluent and reactor bay airborne activity. All of those monitors indicated typical radiation levels during reactor operation."

[Edited on April 26, 2009 at 3:48 PM. Reason : more]

4/26/2009 3:43:01 PM

LimpyNuts
All American
16860 Posts
user info
edit post

Someone done fucked up!

4/26/2009 3:53:45 PM

CharlieEFH
All American
21806 Posts
user info
edit post

Quote :
"Consequences of this event were not significant. Other radiation monitors were in service to monitor airborne radioactive effluent and reactor bay airborne activity. All of those monitors indicated typical radiation levels during reactor operation."

4/26/2009 3:58:52 PM

LimpyNuts
All American
16860 Posts
user info
edit post

Yeah, so? All but a handful of licensing events could be considered inconsequential. But it's still a big deal as far as the NRC is concerned.

4/26/2009 4:01:22 PM

Smath74
All American
93282 Posts
user info
edit post

daaaaaamn

4/26/2009 4:12:52 PM

wdprice3
BinaryBuffonary
45912 Posts
user info
edit post

cool

4/26/2009 4:16:51 PM

dweedle
All American
77387 Posts
user info
edit post

4/26/2009 4:35:45 PM

Arab13
Art Vandelay
45181 Posts
user info
edit post

....

2 sensors for radiation were out of service, the other few dozen sensors that do the same thing were not.

it's a big deal b/c none of them are supposed to be out of service for any significant length of time without prior knowledge.

the problem was that they didn't find out that something was broke for so long.

4/26/2009 4:53:09 PM

humandrive
All American
18286 Posts
user info
edit post

The NRC gets all upset about the littlest things

4/26/2009 8:46:38 PM

 Message Boards » Chit Chat » NRC Event Report #44991 Page [1]  
go to top | |
Admin Options : move topic | lock topic

© 2025 by The Wolf Web - All Rights Reserved.
The material located at this site is not endorsed, sponsored or provided by or on behalf of North Carolina State University.
Powered by CrazyWeb v2.39 - our disclaimer.