ML20196F716
| ML20196F716 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 11/23/1998 |
| From: | Wilson I FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML20196F697 | List: |
| References | |
| AP-470, NUDOCS 9812070113 | |
| Download: ML20196F716 (29) | |
Text
l LOIA REV 09 (MC) AP-470 n :
V LOSS OF INSTRUMENT AIR 1.0 ENTRY CONDITIONS JEIAPR5SSis590psig. L THEN use this procedure. [
2.0 IMMEDIATE ACTIONS ;
NOTE i
There are no immediate actions for this procedure.
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AP-470 REV 09 (MC) PAGE 2 0F 29 LOIA 9
2.0 FOLLOW UP ACTIONS
(] ACTIONS DETA]LS
()
3.1 Ensure in-house air compressors are running. SAP-1A SAP-1B IAP-1A IAP-1B 3.2 Notify personnel of plant e STA conditions.
- Plant operators e NSM e HP (notify of degraded IA conditions as a 3recaution for personnel using ]reathing air) e Announce on PA " Terminate all (O), use of station air" l
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.'3.0 FOLLOW UP ACTIONS (CONT *D)
ACTIONS O DETAILS 3.3 Notify SP0 to start berm air compressors. SAP-1C
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SAP-10 SAP-1E 3.4 E at any time. DHR is in 1 E A DHR Train is in service, service. THEN notify PP0 to manually -
AND IA PRESS < 80 psig, throttle the following valves THEN establish manual (75 ft AB A DH Room):
control of DHR cooling.
AND GO TO Step 3.27 in _ _ DCV-17 "A DH Cooler Bypass this procedure Control" DCV-177 "A DH Cooler Outlet Control" 2 E B DHR Train is in service.
(N THEN notify PPO to manually
() throttle the following valves (75 ft AB B DH Room):
DCV-18 "B DH' Cooler Bypass Control DCV-178 "B DH Cooler Outlet Control" 3 GO TO Step 3.27 in this procedure.
3.5 E at any time. IA PRESS 1 Depress Rx trip push button is < 80 psig.
AND any abnormal system 2 CONCURRENTLY PERFORM E0P-2.
operation exists. Vital System Status THEN trip Rx and Verification, beginning with GO TO Step 3.11 in this Step 2.1 procedure.
3 GO TO Step 3.11 in this procedure.
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Applicable carry-over steps:
3.4 E DHR is in service AND IA PRESS < 80 psig.
3.5 E IA PRESS is < 80 psig AND abnormal system operation exists.
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- 3.0 FOLLOW UP ACTIONS (CONT'D) e ACTIONS DETAILS j O !
3.6 JF at any time. IA PRESS l 1s > 90 psig. l THEN EXIT this procedure. l i
3.7 Bypass IA dryers. e Notify SP0 to open IAV-31 "IADR-1 & :
IADR-2 Bypass Iso" (95 ft TB behind IADR-1). .
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3.8 Place both IA dryer e Notify SPD to ensure all the prefilters and following valves are open afterfilters in service. (95 ft TB by IADR-1): ;
IAV-11 "Prefilter IAFL-2A Inlet !
Iso" !
IAV-12 "Prefilter IAFL-2B Inlet '
j . Iso" .
IAV-14 "Prefilter IAFL-2B Outlet Iso" l 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 p Outlet Iso" l
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.- l Applicable carry-over steps:
3.4 E DHR is in service AND IA PRESS < 80 psig.
3.5 E IA PRESS is < 80 psig AND abnormal system operation exists.
3.6 E IA PRESS is > 90 psig THEN. EXIT this procedure.
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3'0 FOLLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS i O '
3.9 Jf IA PRESS does NOT e Nctify available personnel to j recover. . isolate individual air sup)1y root !
THEN inspect IA'and SA valves on loop header,s wit 1 leaks: !
loops for leaks. !
TB Loop 119 ft TB Loop 95 ft j i
AB Loop 95 ft ;
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i 3.10 WHEN IA PRESS is
> 90 psig, i THEN EXIT this prccedure. j O 1 i
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3.0 FOLLOW UP ACTIONS-(CONT'D) j l
l ACTIONS DETAILS O !
l STATUS 1 The following conditions. exists: !
I' e Rx is tripped e IA PRESS is s 80'psig and any abnormal system operation exists :
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3.11 Initiate EFIC. 1 Depress "EFW INITIATE" push j buttons on EFIC channels A l and B. !
2 Ensure EFWPs start and control flow: j l
EFP-1 EFP-2
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[ Rule 3. EFW Control]
3 Ensure level in available OTSGs is at or trending toward required level.. .
See Table 1 t i
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a .a .-.e . _ . . _a_ a a a 4 4. m. a _44 sm 4.s,2a &,hA4, , &-. _sw AB = m.A.k4 e __4rm. A J. --4a Amah,_m, e 9 0
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? 3.0 FOLLOW UP ACTIONS (CONT'Dl- !
ACTIONS DETAILS !
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-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" i push buttons on EFIC channels A :
and B for both OTSGs. !
3 Select' MBVs to
- MAN" and select all FW isolation valves to "CLOSE": ;
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LLBV FWV-31 FWV-32
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MBV toggle " MAN" " MAN" l
MBV FWV-30 FWV-29 SUBV FWV-36 FWV-33 e Cross-tie FWV-28 i O Suction FWV-14 FWV-15 4 Ensure both MFWPs are tripped: l A OTSG B OTSG !
FWP-2A FWP-2B 5 Ensure all MSIVs closed: i A OTSG B OTSG i MSV-412 MSV-413 MSV-411 MSV-414 i
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AP-470 O-REV 09 (MC) PAGE 14 0F 29 LOIA
/ 3.0 FOLLOW UP ACTIONS (CONT'D) 1 l
ACTIONS DETAILS O
3.13 Align backup air supply to e Notify SP0 to open IAV-676 "ADV ADVs. Backup Air Supply Iso" (119 ft TB ;
behind FWHE-38). i 3.14 Isolate letdown. 1 Close MUV-49 :
2 E MUV-49 will NOT close. ,
THEN close MUV-567 l t
l 3.15 Isolate normal makeup. 1 Maintain PZR level > 80 in with 'l MUV-24 !
2 Close MUV-27 l l
O 3.16 _ Maintain MUT level a 55-in.
e Cycle appropriate BWST to MUP valve to raise MUT level.
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MUV-73 j HUV-58 i i
3.17 E at any time. RCP CB0 is ,
lost. RCP-1A THEN trip all RCPs. !
RCP-1C l
RCP-1B l
RCP-1D j l
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REV 09 (MC) PAGE 15 0F 29 LOIA }
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Applicable carry-over steps:
3.17 Jf RCP CB0 is lost. THEN trip all RCPs.
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3.0 FOLLOW-UP ACTIONS (CONT'D)
,e') ACTIONS DETAILS LJ 3.18 IF at any time SW low TTow for an RCP is RCP-1A
. indicated by either of the following: RCP-1C "PP SEAL & WTR FLOW" RCP-1B lamp extinguished on RCP control switch RCP-1D "RC PUMP CLG WTR FLOW LOW" annunciator alarm is illuminated , ,
THEN trip affected RCP.
3.19 JE at any time, all RCPs e Ensure level in available OTSGs are tripped. is at or trending toward Nat THEN establish Nat Circ. Circ level.
c'~~; [ Rule 3. EFW Control]
e Monitor all 4 Tcolds for Nat Circ indications.
e Indications of Nat Circ:
Thot tracking Tincore Tcold tracking OTSG Tsat AT (Thot - Tcold) stable or lowering i
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Applicable carr.y-over steps:
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.
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' 3.0 FOLLOW UP ACTIONS (CONT *D) l ACTIONS DETAILS O ]
l 3.20 Reduce RCP seal injection e Notify PPO to perform the following to a 3 gpm per pump. in order (95 ft AB NU valve alley):
Open MUV-34 " Seal Injection Control Bypass Outlet Iso" l Open MUV-35 " Seal Injection Control Bypass Inlet Iso".
t Throttle MUV-17 " Seal Injection '
l Control Bypass" :
Close MUV-14 " Seal Injection Control Inlet Iso" !
3.21 Control RCS TEMP using ADVs.
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Applicable carry-over steps:
3.17 E RCP CB0 is lost, THEN trip all RCPs.
3.18 LF SW low flow on any RCP. THEN trip affected RCP.
3.19 E all RCPs are tripped. THEN establish Nat Circ.
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3.0 FOLLOW-UP ACTIONS (CONT *D) i ACTIONS OFTAILS l O !
3.22. Ensure emergency RB 1.At least 1 Emergency SW Pump i cooling is in service. running:
[ Rule 5. EDG Control] SWP-1A !
i SWP-1B :
2 At least 1 Emergency SW Raw Water .
Pump running:
RWP-2A l
RWP-2B !
3 Proper RB cooling unit operation:
l E ES has NOT actuated.
THEN ensure both ES selected RB cooling units running in slow ;
speed. -
E ES has actuated.
THEN ensure only 1 ES selected ;
RB cooling unit running in slow .
speed. j 4 CI valves to RB cooling units i closed: .
SWV-151 .
SWV-152 SWV-355 5 SW valves to RB cooling units open: .
SWV-353 l SWV-354 !
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REV 09 (MC) PAGE 21 0F 29 LOIA
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Applicable carry-over steps:
3.17 IF RCP CB0 is lost. THEN trip all RCPs.
3.18 _ SW low flow on any RCP THEN trip affected RCP.
3.19 IE all RCPs are tripped. THEN establish Nat Circ.
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- 3.0 FOLLOW UP ACTIONS (CONT'D)
N ACTIONS DETAILS f i
3.23 lE at any time. PZR level e Control cooldown using ADVs. l 1s > 250 in. l THEN control PZR level by e CONCURRENTLY PERFORM E0P-14.
starting an RCS cooldown. Enclosure 15. E0P Temperature .;
Log. l t
i 3.24 Break condenser vacuum. 1 Select condenser ARPs to
" PULL TO LOCK":
ARP-1A ARP-1B 2 Open condenser vacuum Bkrs. j ARV-48 ARV-49 ;
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3.25 Ensure WG compressors are o Notify PP0 to select WG compressors .
stopped. to " PULL TO LOCK" (WDCP-3 Radwaste
- Control Panel): j WDP-1A WDP-1B !
3.26 Isolate GW to AS e Notify SP0 to close ASV-53 "GS !
desuperheater. DESUPERHEATER OUTLET 150" (119 ft TB !
at AS Hdr).. ,
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Applicable carry-over steps:
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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- 3.0 FOLLOW UP ACTIONS'(CONT'D) .
L ACTIONS DETAILS l
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l- 3.27 E at any time. IA valves ,
fail.
THEN select failed valves L to their failed position. i l
See OP-411. Instrument and- !
Station Air. Enclosure 4. .
Loss of IA Equipment !
Failure Modes j 1
- 3. 28 _. at ny time. SC cooling-SAP-1A SAP-1B THEN stop SC cooled l' components. IAP-1A IAP-1B FWP-2A FWP-2B l i
FWP-1A FWP-1B !
CDP-1A CDP-1B
'v ARP-2A ARP-2B ,
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! 3.29 E at any time. IA PRESS I
is > 90 psig.
THEN GO TO OP-411.
- . Instrument and Station Air l l. System. Section 4.8.
! ' Restoration From AP-470 3.30- Bypass IA dryers. e Notify SP0 to open IAV-31 "IADR-1 &
l IADR-2 Bypass Iso" (95-ft TB behind IADR-1).
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Applicable carry-over steps:
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.
3.27 E IA valves fail. THEN select failed valves to.
3.28 E SC cooling is lost. THEN stop SC cooled components.
3.29 E IA PRESS is > 90 psig. THEN GO TO OP-411.
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. . -- 3.0 FOLLOW-UP ACTIONS (CONT *D) l t
ACTIONS DETAll.S i
3,31 Place both IA dryer e Notify SP0 to ensure the following .
u prefilters and are open (95 ft TB by IADR-1): j afterfilters in service.
IAV-11 "Prefilter IAFL-2A Inlet i Iso" l IAV-12 "Prefilter IAFL-2B Inlet Iso" )
IAV-14 "Prefilter IAFL-2B Outlet !
l- Iso" l
! IAV-544 "Prefilter IAFL-2A !
l Outlet Iso" !
i IAV-18 "Afterfilter IAFL-3B ;
Inlet Iso" ;
IAV-545 "Afterfilter IAFL-3A !
Inlet Iso" '
IAV-19 "Afterfilter IAFL-3A l Outlet Iso" t IAV-20 "Afterfilter IAFL-3B i Outlet Iso" i
3.32 IE IA PRESS does NOT e Notify available personnel to recover, isolate individual air sup)1y root
loops for leaks.
TB Loop 119 ft TB Loop 95 ft AB Loop 95 ft I
3.33 WHEN IA' PRESS is
> 90 psig.
THEN GO TO OP-411.
Instrument and Station Air i
- i. System. Section 4.8. )
,_s Restoration From AP-470 )
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"LLL" > 20 in = 1 RCP running with i adequate SCM j Table 1: "NAT CIRC" > 70% No RCPs running with 1 Required 0TSG levels adequate SCM l j "ISCM" > 90% Inadequate SCM 2
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