ML12284A373

2012 Dresden Nuclear Power Station Initial License Examination ES-D-1 ILT-N-2 Rev 1

ML12284A373
Person / Time
Site:	Dresden
Issue date:	09/26/2012
From:	David Reeser Operations Branch III
To:	Nelson J Exelon Generation Co
Shared Package
ML11354A121	List: ML12132A315 ML12132A316 ML12132A317 ML12132A318 ML12132A319 ML12132A320 ML12132A321 ML12132A322 ML12132A323 ML12132A324 ML12132A325 ML12132A327 ML12132A328 ML12284A310 ML12284A317 ML12284A326 ML12284A332 ML12284A336 ML12284A338 ML12284A342 ML12284A366 ML12284A373 ML12284A378 ML12291A685 ML12291A688
References
Download: ML12284A373 (1)

Text

TQ-AA-151-F10 Revision 0 Page 1 of 1 Scenario Outline Station: Dresden Generating Station Scenario No.: ILT-N-2 Class ID: 11-1 (2012-301)

Evaluators Operators / crew position

/ ATC

/ BOP

/ CRS Initial Conditions: Initial Power = 70%

Load dropped to support FRV Maintenance Turnover: Remove 2B FWRV From Service For Maintenance Swap Reactor Building Fans For Maintenance Place HPCI on the Turning Gear Event Malf. Event Event No. No. Type* Description 1 NONE N BOP HVAC - Reactor Building Fans, Swap For Maintenance 3 NONE N ATC FW - FWRV, Remove From Service For Maintenance 4 RRMFAEXH C ATC HVAC - Recirc MG Vent Fan, Degrades Causing Low Flow HPCI - System, Inoperable Due to Failure of Turning Gear 4 HPTGFAIL C/T BOP to Engage 5 SER0512 C ATC DWEDS - Alarm Failure, Manually Pump Sumps ADS3CBN 6 C/T BOP MAIN STEAM - ERV, Spurious Opening ADS3CSD 7 NP2 M TEAM Manual Scram - Loss Of Instrument Air System.

EMERGENCY DEPRESSURIZE - On 2 Areas Above Max 8 HPRMBRKP M TEAM Safe Radiation Levels Due To HPCI Steam Line Leak into the HPCI Room.

• (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor, (T)ech Spec SRRS: 3D.105