ML051930469

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051930469
Person / Time
Site:	Point Beach
Issue date:	04/28/2004
From:	Matthew Meyer Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051930469 (3)

Text

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: April 28, 2004 Time: 0230 Preparer: Michael R. Meyer U I R 28 NOTE: Refer to baseprocedureNP 10.3.6for safety assessment checklist KSF definitions.

NOTE: Wh7teneverfuel has been removedfrom the reactorvessel and refueling cavity, all key safetyfunctions are GREEN excent spentfuel pool cooling.

KEY SAFETY FUNCTION CRITERIA: No/False = 0, Yes/True = I through 4 REACTIVITY Subtotal Condition

1. RCS Boron concentration = 2995 ppm (4/27) a.) For RSD, RCS boron >Refueling boron concentration specified in unit-specific COLR (TRM 2.1) >2200 ppm b.) For CSD and prior to RSD no fuel motion, RCS boron > boron concentration required by OP 3C (0-1) 1 0-I RED

2. Number of boration paths (0-2) 1 2

3. No fuel motion (0-1) 0 334

4. SR instrumentation operable (0-1) 1 5 Cavity Boron concentration = 3016 ppm SFP Boron concentration = 3027 ppm Sul )total = 3 CORE COOLING Subtotal Condition

1. Number of SG available for DHR (0-2) 0 0-1 RED

2. Refueling cavity filled (0-1) 1 2

3. Number of trains RHR available (0-2) 1 3

4. RCS level above REDUCED INVENTORY (0-1) 1 4-5 RCS TEMIP =78'F; 25 days shutdown, Subtotal = 3 RiCS Level = Refucling Height RCS Time to Boil 25.5 hrs (Applicable at Cold or Refueling Shutdown)

POWER AVAILABILITY Subtotal Condition

1. Independent off-site power sources I RED available to A-05 and A-06 (totally 2 ORANGE independent at the 4160 V, 13.8 kV, 3 3 _

and 345 kV levels) (0-2) 2 4-5

2. G-01 or G-02/A-051B-03 available (0-1) 1 G-03 or G-04/A-06/B-04 available (0-1) 1

3. G-05 available, Reactor Cavity filled to 2 23 ft above the top of the reactor vessel flange, upper internals removed and RCS time to boil 2 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. (0-1) 1 Subtotal = 5 INVENTORY Subtotal Condition

1. Pressurizer level 220 percent w/head on 0-1 RED (0-1) 0 2 ORANGE

2. Refueling Cavity filled (see definition) (0-3) 3 3(

3. RCS level above REDUCED INVENTORY (0-1) 1 4

4. Makeup from VCTIBLENDER and/or RWST available (0-2) 0 Subtotal = 4 kitormabnfm~ire dw asd* W 7-L-._3 PBF-1562 kiaccmdnce with fte Freedom of W-b"oIsmf

References:

NP 10.3.6 Revision 2 10/30/02 PaeI of 9 NP 10.2.1

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST CONTAINMENT Subtotal Condition

1. Containment integrity (TS 15.11.D) {Containment 0 RED Operable) {ITS TS 3.6.1) set (O or 4) 0 1

2. Containment Closure CL-IE maintained 2-3 and closure < time to boil (O or 2) 2 4-5-6

3. No fuel motion (0-1) 0

4. DIR Capability:

- cavity flooded and internals out OR

- at least one SG available OR

- one fan cooler with Equip hatch installed and personnel hatches capable of being shut (0-1) 1 Subtotal = 3 SPENT FUEL POOL COOLING (ONLY APPLICABLE when starting AND during FULL CORE OFFLOADS)

NOTE: Take creditforonly one P-12 Independent offslle powersource duringperiods ofsingleX-03 or X-04 availability (*).

Subtotal Condition

1. "A" SFP cooling pump available 0-1 RED with power available from: 2 ORANGE

- G-02 or G-0I via 2B-32 (0-1) 1 3 SE~iLW

.*) an independent off-site power 4-5 source different than that for

1. -RE Train B below (0-1) 1

2. "B" SFP cooling pump available with power available from:

- G-03 or G-04 via IB42 (0-1) 1

.(*) an independent off-site power source different than that for Train A above (0-1) 1

3. Temporary power available to one SFP cooling pump, G-05 available, and SFP time to boil 2 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. (0-1) 0 SFP Temperatures: Subtotal = 4 0

NW 81 F SE 79 OF SFP Average Temp 80.0 OF SFP Time to Boil 21 hrs GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE: None LOOK AHEAD:

l. IX04 to be removed from service on 4/28/04. Currently on hold due to procedure difficulties. POWER AVAILABILITY will remain GREEN. SFP COOLING will become YELLOW.

2. Sump 'B' Screen scheduled to be removed on 4/28/04. INVENTORY will become YELLOW.

PBF-1562

References:

NP 103.6 Revision2 10/30/02 Page 2 of 9 NP 10.2.1

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST OUTAGE SAFETY ASSESSMENT UNIT: I DATE: April 28, 2004 TIME: 0230 KEY SAFETY FUNCTIONS:

REACTIVITY: YELLOW CORE COOLING: YELLOW POWER AVAILABLE: GREEN INVENTORY: GREEN CONTAINMENT: YELLOW SFP COOLING: GREEN COMMENTS:

RCS Time to Boil is 25.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> SFP Time to Boil is 21 hours2.430556e-4 days <br />0.00583 hours <br />3.472222e-5 weeks <br />7.9905e-6 months <br /> (full core off-load is assumed)

Fire Protection Condition IV: Credit is taken for fire rounds as fire prevention contingency PBF-1562

References:

NP 10.3.6 Revision 2 10/30/02 Page 5 of 9 NP 10.2.1