Skip to content

Nuclear Event – Potential Uncontrolled Radiation Release: Dresden Nuclear Power Station, Illinois

2016/02/10

Technological Hazard –  Potential Uncontrolled Radiation Release

North America – USA | State of Illinois – Dresden Nuclear Power Station, Unit 3
Location: 41°23’23.0″N 88°16’05.0″W
Present Operational Age: ~55 years
Event: POT UNCNTRL RAD REL

Nuclear Event in USA on Tuesday, 09 February, 2016 at 21:42 [CST]

SECONDARY CONTAINMENT INOPERABLE

“At 2142 [CST] on February 9, 2016, Reactor Building differential pressure did not meet the required 0.25 inches of vacuum water gauge due to failure of the control system. At 2205, the Unit 3 Reactor Building Ventilation System was secured and manually isolated. The Reactor Building differential pressure returned to [greater than or equal to] 0.25 inches of vacuum water gauge at 2207.

“This condition represents a failure to meet Surveillance Requirement 3.6.4.1.1. As a result, entry into Technical Specifications 3.6.4.1 condition A was made due to Secondary Containment being inoperable. This event is being reported in accordance with 10 CFR 50.72(b)(3)(v)(C) as a condition that could have prevented the fulfillment of a safety function.

“The NRC Resident Inspector has been notified.”

Source: NRC Event Number: 51721

Advertisements
Leave a Comment

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s