ML20216F018
| ML20216F018 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 04/08/1998 |
| From: | FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML20216F000 | List: |
| References | |
| AP-470, NUDOCS 9804160378 | |
| Download: ML20216F018 (27) | |
Text
l LOIA REV 07 (MC)
AP-470 l
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LOSS OF INSTRUMENT AIR l
1.0 ENTRY CONDITIONS INFORMATION 1E IA PRESS is s 90 psig, ONLY l
JREN use this procedure.
L 2.0 IMMEDIATE ACTIONS HOIE There are no imediate actions for this procedure.
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Approved by NNP0
[e[U/b-Date 04/08/98
(SIGNATURE ON FILE)
AP-470 PAGE 1 of 27 LOIA l
9804160378 980409 PDR ADOCK 05000302 P
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o AP-470 REV 07 (MC)
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3.0 FOLLOW-UP ACTIONS r)
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ACTIONS DETAILS 3.1 Ensure in-house air g g-compressors are running.
3.2 Notify personnel of plant STA conditions.
1 Plant operators NSM e
HP (notify of degraded IA conditions as a precaution for personnel using breathing air) k.)
Announce on PA " Terminate all use of station air".
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3.0 FOLLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS 3.3 Notify SP0 to start berm l
air compressors.
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3.4 __ J1 at any time, DHR is in 1
J1 A DHR Train is in service, i
- service, M notify PP0 to manually l
E IA PRESS < 80 psig, throttle the following valves l
l M establish manual (75 ft AB A DH Room):
control of DHR cooling, l
M GO TO Step 3.27 in DCV-17 "A DH Cooler Bypass this procedure Control" DCV-177 "A DH Cooler Outlet Control" l
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!N M notify PP0 to manually throttle the following valves l
(75 ft AB B DH Room):
DCV-18 "B DH Cooler Bypass Control" DCV-178 "B DH Cooler Outlet l
Control" 3
GO TO Step 3.27 in this procedure.
l 3.5 JF at any time, IA PRESS 1
Depress Rx trip push button is < 80 psig, E any abnormal system 2
CONCURRENTLY PERFORM E0P-2, operation exists, Vital System Status M trip Rx and Verification, beginning with I
GO TO Step 3.11 in this Step 2.1 procedure.
3 GO TO Step 3.11 in this procedure.
O AP-470 REV 07 (MC)
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i Applicable carry-over steps:
CN 4, 'j E DHR is in service AND IA PRESS < 80 psig...
3.4
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3.5 E lA PRESS is < 80 psig MQ abnormal system operation exists...
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L4 FOLLOW-UP ACTIONS (CONT'D)
Ob ACTIONS DETAILS 3.6 1E at any time, IA PRESS is > 90 psig, IliEt{ EXIT this procedure.
3.7 Bypass IA dryers.
- Notify SP0 to open IAV-31 "IADR-1 &
j IADR-2 Bypass Iso" (95 ft TB behind 1ADR-1).
3.8 Place both IA dryer
- Notify SP0 to ensure all the prefilters and following valves are open afterfilters in service.
(95 ft TB by IADR-1):
IAV-Il "Prefilter IAFL-2A Inlet Iso" IAV-12 "Prefilter IAFL-2B Inlet
\\pj Iso" IAV-14 "Prefilter IAFL-2B Outlet Iso" IAV-544 "Prefilter IAFL-2A Outlet Iso" IAV-18 "Afterfilter IAFL-3B Inlet Iso" IAV-545 "Afterfilter IAFL-3A Inlet Iso" IAV-19 "Afterfilter IAFL-3A Outlet Iso"
__ IAV-20 "Afterfilter IAFL-3B Outlet Iso" O
AP-470 REV 07 (MC)
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r 1
i Applicable carry-over steps:
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3.4
[E DHR is in service AND IA PRESS < 80 psig...
1E 1A PRESS is < 80 psig a.NJ) abnormal system operation exists...
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3.6 1E IA PRESS is > 90 psig THEN, EXIT this procedure.
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I 3.0 FOLLOW-UP ACTIONS (CONT'D1 ACTIONS DETAILS 3.9 jf IA PRESS does NOT e Notify available personnel to i
- recover, isolate individual air supply root l
Itifh inspect IA and SA valves on loop headers with leaks:
l' loops for leaks.
TB Loop 119 ft l
TB Loop 95 ft AB Loop 95 ft 3.10 WBIE IA PRESS is
> 90 psig, l
THEN EXIT this procedure.
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l 3.0 FOLLOW-UP ACTIONS (CONT'D) n 1
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ACTIONS DETAILS l
STATUS i
1 The following conditions exists:
e Rx is tripped e IA PRESS is :s; 80 psig and any abnormal system operation exists 3.11 Initiate EFIC.
1 Depress both "EFW INITIATE" push buttons on EFIC channels A and B.
2 Ensure at least one EFWP running:
EFP-1 EFP-2 O
3 Ensure level in available OTSGs is at or trending toward required level.
(Rule 3, EFW Control) l l
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3.0 F0LLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS 3.12 Initiate MSLI and MFLI.
1 Depress " MAIN STM ISOLATION" push buttons on EFIC channels A and B for both OTSGs.
2 ___ Depress " MAIN FEED ISOLATION" push buttons on EFIC channels A and B for both OT9Gs.
3 Select MBVs to " MAN" and select all FW isolation valves to "CLOSE":
FW valve A OTSG B OTSG LLBV FWV-31 FWV-32 MBV toggle
" MAN"
" MAN" MBV FWV-30 FWV-29 SUBV FWV-36 FWV-33 Cross-tie FWV-28 Suction FWV-14 FWV-15 4 Ensure both MFWPs are tripped:
A OTSG B OTSG FWP-2A FWP-2B 5 Ensure all MSIVs closed:
A OTSG B OTSG MSV-412 MSV-413 MSV-411 MSV-414 O
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3.0 FOLLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS
? 13 Align backup air supply to e Notify SP0 to open IAV-676 "ADV ADVs.
Backup Air Supply Iso" (119 ft TB behind FWHE-38).
3.14 Isolate letdown.
1 Close MUV-49 2
If MUV-49 will NOT close, IE!i close MUV-567 3.15 Isolate normal makeup.
1 Maintain PZR level > 80 in with MUV-24 2
Close MUV-27 1
O 3.16 Maintain MUT level
- Cycle appropriate BWST to MVP valve 2 55 in, to raise MUT level:
MUV-73 MVV-58 3.17 If at any time, RCP CB0 is
RCP-lC RCP-1B RCP-10 O
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Applicable carry-over steps:
3.17 If RCP CB0 is lost, I!!EH trip All RCPs.
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L9 FOLLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS
'8 E at any time, SW low i
l flow for an RCP is RCP-1A indicated by either of the ~ollowing:
RCP-lc "PP SEAL & WTR FLOW" RCP-1B l
lamp extinguished on RCP control switch RCP-1D "RC PUMP CLG WTR FLOW LOW" annunciator alarm is illuminated T!i@ trip affected RCP.
1 3.19 E at any time, all RCPs e
Ensure level in available OTSGs are tripped, is at or trending toward Nat IEW establish Nat Circ.
Circ level.
[ Rule 3, EFW Control]
e Monitor all 4 Tems for Nat Circ indications.
l e Indications of Nat Circ:
Thet tracking Tinese Tem tracking OTSG Tset AT (That - IcW) stable or lowering l
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Applicable carry-over steps:
3.17 IE RCP CB0 is lost, ItiEH trip all RCPs.
3.18 lE SW low flow on any RCP, I!!EH trip affected RCP.
3.19 LE all RCPs are tripped, lHEN establish Nat Circ.
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3.0 FOLLOW-UP ACTIONS (CONT'D) i [
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ACTIONS DETAILS l
3.20 Reduce RCP seal injection e Notify PP0 to perform the following l
to 2: 3 gpm per pump.
in order (95 ft AB MU valve alley):
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Open MUV-34 " Seal Injection Control Bypass Outlet Iso".
Open MUV-35 " Seal Injection Control Bypass Inlet Iso".
Throttle MUV-17 " Seal Injection Control Bypass".
Close MVV-14 " Seal Infection Control Inlet Iso".
3.21 Control RCS TEMP using ADVs.
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Applicable carry-over steps:
3.17 11 RCP CB0 is lost, THEN trip 111 RCPs.
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3.18 lE SW low flow on any RCP, IEN trip affected RCP.
3.19 If all RCPs are tripped, IMH establish Nat Circ.
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3.0 FOLLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS 3.22 Ensure emergency RB 1 At least 1 Emergency SW Pump cooling is in service, running:
(Rule 5, EDG Control]
SWP-1A SWP-18 2 At least 1 Emergency SW Raw Water Pump running:
RWP-2A RWP-2B 3 Proper RB cooling unit operation:
1E ES has NOT actuated, ItiEN ensure both ES selected RB cooling units running in slow speed.
O 1E c.S has actuated, ItiEH ensure only 1 ES selected RB cooling unit running in slow speed.
4 CI valves to RB cooling units closed:
SWV-151 SWV-152 SWV-355 5 SW valves to RB cooling units open:
l SWV-353 SWV-354 l
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I Applicable carry-over steps:
r) 3.17 E RCP CB0 is lost, THEN trip all RCPs.
,(g 3.18 E SW low flow on any RCP, THEN trip affected RCP.
3.19 E G RCPs are tripped, J_HG establish Nat Cire.
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3.0 FOLLOW-UP ACTIONS (CONT'D1
)
O ACTIONS DETAILS 3.23 IE at any time, PZR level e
Control cooldown using ADVs.
is > 250 in, THW control PZR level by CONCURRENTLY PERFORM E0P 14, starting an RCS cooldown. 5, E0P Temperature i
I Log.
i 3.24 Break condenser vacuum.
1 Select condenser ARPs to
" PULL TO LOCK":
ARP-1A ARP-18 2 Open condenser vacuum Bkrs:
ARV-48 ARV-49 O
3.25 Ensure WG compressors are e Notify PPO to select WG compressors stopped.
to " PULL TO LOCK" (WDCP-3 Radwaste Control Panel):
WDP-1A f
WDP-1B 3.26 Isolate GW to AS
- Notify SP0 to close ASV-53 "GS desuperheater.
DESUPERHEATER OUTLET 150" (119 ft TB at AS Hdr).
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i Applicable carry-over steps:
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is' 3.17 E RCP CB0 is lost, THEN trip all RCPs.
3.18 E SW low flow on any RCP, THEN trip affected RCP.
3.19 E all RCPs are tripped, THEN establish Nat Circ.
3.23 E PZR level is > 250 in, THEN control PZR level...
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l 3.0 FOLLOW-UP ACTIONS (CONT'D) l ACTIONS DETAILS 3.27 E at any time, IA valves
- fail, THEN select failed valves to their failed position.
See OP-411, Instrument and Station Air, Enclosure 4, Loss of IA Equipment Failure Modes 3.28 E at any time, SC cooling SAP-1A
' SAP-1B is lost, 3
THEN stop SC cooled components.
M.P48 p*
(FWP-2A FWP-2B TFWP-1A FWPllB
!. CDP-1 A
' CDP-1B
J "ARP'2A
- ARP-2B 3.29 E at any time, IA PRESS is > 90 psig, EJE GO TO OP-411, Instrument and Station Air System, Section 4.8, Restoration From AP-470 3.30 Bypass IA dryers.
- Notify SP0 to open IAV-31 "IADR-1 &
IADR-2 Bypass Iso" (95 ft TB behind 1ADR-1).
I,a AP-470 REV 07 (MC)
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l Applicable carry over steps:
3.17 E RCP CB0 is lost, M trip all RCPs.
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3.18 E SW low flow on any RCP, THEN trip affected RCP.
l 3.19 E All RCPs are tripped, THEN establish Nat Cire.
3.23 E PZR level is > 250 in, THEN control PZR level...
3.27 E IA valves fail, M select failed valves to...
3.28 1E SC cooling is lost, E stop SC cooled components.
4 3.29 IE IA PRESS is > 90 psig, THEN GO TO OP-411...
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3.0 FOLLOW-UP ACTIONS (CONT'D)
OV ACTIONS DETAILS 3.31 Place both IA dryer e Notify SP0 to ensure the following prefilters and are open (95 ft TB by IADR-1):
afterfilters in service.
IAV-Il "Prefilter IAFL-2A Inlet Iso" I AV-12 "Prefilter I AFL-2B Inlet Iso" IAV-14 "Prefilter IAFL-2B Outlet Iso" IAV-544 "Prefilter IAFL-2A Outlet Iso" IAV-18 "Afterfilter IAFL-3B Inlet Iso" IAV-545 "Afterfilter IAFL-3A Inlet Iso" IAV-19 "Afterfilter IAFL-3A Outlet Iso" IAV-20 "Afterfilter IAFL-3B Outlet Iso" 3.32 JE IA PRESS does NOT e Notify available personnel to
- recover, isolate individual air supply root 111@ inspect IA and SA valves on loop headers with leaks:
loops for leaks.
TB Loop 119 ft TB Loop 95 ft AB Loop 95 ft 3.33 WH._@ IA PRESS is
_> 90 psig, I11@ GO TO OP-411, Instrument and Station Air System, Section 4.8, O
Restoration From AP-470 AP-470 REV 07 (MC)
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