ENS 40107: Difference between revisions

v t e ENS Event
13:24 Aug 27, 2003
Title	Control Room Access Door Latch Was Determiend to Be Not Fully Engaging.
Event Description	At 09:24 am on 08/27/03, a Control Room access door latch was determined to be not fully engaging. The door and latch provide the following functions: maintain the integrity of the Control Room boundary which is a design feature to maintain Control Room habitability following a design bases accident, and provide a security barrier to restrict access into the Control Rom complex to only those personnel with preapproved security clearance. With the latch not engaged, the door was not capable of performing these functions. The appropriate security contingencies were implemented, requiring posting of a Security Force Member at the door controlling access to the Control Room Complex. Technical Specification (TS) 3.0.3 was entered due to the inability of either Control Room ventilation system to maintain Control Room habitability, as required by TS 3.7.2. At 10:20, the door latch was replaced to re-establish the integrity of the Control Room habitability boundary and TS 3.0.3 was exited. The ability of the latch to properly operate for access and egress was not established; access through the affected door remained restricted until repairs can be completed (there are additional doors to the Control Room that remain fully functional). At 14:00, the door was again impaired for repair of the door latch. Full functionality of the door was restored at 14:41. The NRC Resident Inspector was notified of this event by the licensee. * * RETRACTION AT 1143 EDT ON 10/22/03 FROM A. BRAEDY TO E. THOMAS * * * At the time of the original notification the ability to maintain Control Room habitability, as required by TS 3.7.2 was not assured. Subsequent evaluation has determined that if a postulated accident had occurred during the time that the door latch was impaired, control room dose would be less than the acceptance criteria specified in 10CFR50.67 and Regulatory Guide 1.183 and bounded by our current analysis. The site boundary doses were never affected. The dose impact of the condition as it existed would be bounded by the current analysis. Thus, the safety function would have been fulfilled. Notified R1DO (L. Doerflein)

ENS 40107 +/- *RETRACTED*
Where
Hope Creek New Jersey (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+1.97 h0.0821 days <br />0.0117 weeks <br />0.0027 months <br />)
Opened:	Steve Nevelos 15:22 Aug 27, 2003
NRC Officer:	John Mackinnon
Last Updated:	Oct 22, 2003
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v • d • e

v t e Emergency Notification System
Hope Creek with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2023-04-30T05:00:00 [Table view]
[ENS list for Hope Creek]

@@ Line 17: / Line 17: @@
 | event date = 08/27/2003 09:24 EDT
 | last update date = 10/22/2003
-| title = Control Room Access Door Latch Was Determiend To Be Not Fully Engaging.
+| title = Control Room Access Door Latch Was Determiend to Be Not Fully Engaging.
 | event text = At 09:24 am on 08/27/03, a Control Room access door latch was determined to be not fully engaging.  The door and latch provide the following functions:
 maintain the integrity of the Control Room boundary which is a design feature to maintain Control Room habitability following a design bases accident, and

v t e Unit 1
GE-4
Reactor critical	Critical
Scram	No
Before	Power Operation (100 %)
After	Power Operation (100 %)

ENS 40107: Difference between revisions

Latest revision as of 21:24, 1 March 2018

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ENS 40107: Difference between revisions

Latest revision as of 21:24, 1 March 2018

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