ML20039D588
| ML20039D588 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 12/31/1981 |
| From: | William Jones OMAHA PUBLIC POWER DISTRICT |
| To: | Clark R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20039D589 | List: |
| References | |
| NUDOCS 8201050235 | |
| Download: ML20039D588 (26) | |
Text
_
Omaha Public Power District 1623 HARNEY E OMAHA, NEBRASKA 68102 e TELEPHONE S36 4000 AREA CODE 402 December 31, 1981 u
9 Mr. Robert A. Clark, Chief U. S. Nuclear Regulatory Commission RECElyED D
Office of Nuclear Reactor Regulation 9.
1 gD4 19g4 Division of Licensing
.~
7 E
Operating Reactors Branch No. 3 Washington, D.C.
20555
/
Reference:
Docket No. 50-285 4
W f*
Dear Mr. Clark:
The Commission's letter to the Omaha Public Power District dated July 20, 1981 requested infonnation regarding the reliability of the Fort Calhoun Station onsite standby diesel generators. The Commission's request was for information in tabular form on tables provided with the Comnission's letter. Accordingly, the completed tables (1 through 4) outlining the history of the Fort Calhoun Station diesel generators from 1976 to 1981 are attached.
For a small percentage of the outage dates listed in Table 2, additional information correlating a reason for the outage on these dates could not be located.
Several different avenues were investigated to locate any information applicable to these outages. These avenues included Maintenance Orders (filed both by component and M0 number),
Plant Review Committee Mf nutes, Operations Incidents, Licensee Event Reports, and Monthly Operations Reports. The District is continuing its search for additional information and this information will be provided to you if it is located.
Table 5 is the District's own table summarizing all inf ormation concerning diesel gererator operation. This table notes the number of starts / failures by month, the reason for operation, the load and run duration, and the date of the test.
Sincerely,
/)
[lhp/ M W
ll W. C. Jones DivisibnManager Production Operations WCJ/KJM/TLP:jmm
'8201050235 811231 4
Attachments PDR ADOCK 05000285 t
P PDR 68 't cc: LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, N.W.
Washington, D.C.
20036 l
e
,k
- Enclorura 1 f
.fl TAllt.E 1 Diccol Censrcter Op3rctions Data Plant !! man: Fort Calhoun,
Calandar Year 1976 Unit H2 1
J Reason for DC Number Number Percent Duration of Run Operation, & scheduled DC of of I.oading of liefore Stop For Identification of Failures Duration of Run No.
Starte l'a l l u re t.
nG (KtJ)
Each DG Failure (itefer to at tached I.Elts or Table 1) j Tech. Spec Reg'd Test 1
13 l_(See Attache ! )_>_10_Sec_,_S_ tart Time Failure LER 76-11 I
Montlily Surveillance (Tahlo M l
Rafueling Outage 2
12 0 (See Attache:1)
(Table 5) 1 1
0 100%RL + 5%
4
[2 1
0 100%RL + 5%
DcActualDemani
~
)
g 0
Run 10 to 30 Min.
Starts not for SIAS Signal till Operator Shutdow l Testing 2
0
'Hicchilaneous Tests (Specify Type) 1 1
0 See Attache:iO nne.
Sun anu Mj 1
1 0
,See Attached) - (Table 5)
Day Tank Switch over Check 1
1 0
See AttacheJ)
Starting Time Check Verify Repairs (not full test) 1 1
0
'See Attached)
(S tar Only) 1 0
'See Attached) a 2
- RL= Rated Load
g Tant.E 1 Disos1 Canarator opsrottons pata Plant tinra ; Fort Calhoun,,
Calendar Year 1977 unit ela, 1
'l
~ Reason for DC tionibe r llunib e r Percent Duration of Run operation, & scheduled DG of of 1.o.id i n g ' o f Ilefore Stop For Identification of Failures Duration of Hun flo.
Starts t'a 11 u re t, 11C (Kil)
Encts DC Failure (ftefer to at tac 1 ed I.Elts or Tahic 3) 3 i
Te cli. Spec Reg a Test 1
10 l____.( Sea. Attache 1)._210.Sec__S tar 1_T_ime _ LED 77 19 Houthly Surveillance (Table 5)
Failuro l
. 2 12 0
Refueling outage Ran as part 01 MT w
i)c Actual Demand 1
5 0
Run 10 to 30 Min. til l Operator Shutdown Starts not for Testing 2
5 0
SIAs Signal Hiscellaneous Tests 1
1 0
. See Attache :i (Tn satisfv ronuiromonte ISpecify Type)
~
~
VA-3A in 003 6 intorim TR 6 (Table 5)
Vefity' Repairs ~
"0""
(not full test)
(S tor Only) 4 a
I
Enclosurs i TAlll2 1 Discal Canorator Operations Datn Plant linr.a Fort Calhoun #
Calendor Year 1978 Unit tro.
Itcason for DG tiumbe r ilumbe r Percent Duration of Hun Operation, & scheduled DC of of I.oading of
!!cfoco Stop For Identification of Failures Duration of Hun tio.
Starts l'a l l u re s DC (KtJ)
Each DC I*ntlure
(!!e f e r t o n t r ached I.Elts or T.ihle 3) 1 13 L.. (See_ Attached)__. field _went_tallax Excitation. SD to Prevent Damage LER 98-22 it istiil Si r i a ce (Table 5) j ;
O stort/ test) 7 10 0
Field went to May Fyritatinn. RO tn Provent Onmago. I FR 78-24 m
.- Refueling Outage
- 1 2
1 Failed to reach 4.16 fN Terminal Voltaae, LER 78-17 h stort/ test) 2 1
0
~
Dc Actual Deinand 1
1 0
Run 10 to 30 Min. til 1 Operator Shutdown Starts not for Testing SIAS Signal 2
1 0
tilscellaneous Tests 7
1 0
(See Attacbadi Preon Test Offsite Power Failed to Close on Auto-Bus lER 78-38 (Specify Type) 2 1
0 (Table 5)
Soecial Test
~
2 1
0 Operability Check G ily Repalr7
~
2 1
0 D.G. Auto Op. Test (not full test) 2 1
-0 (See Attact ed)
Operability Check (5: ort Only)
(Table 5) 4 I
s
- Enclosura 1
~
Disaal Osnarator Opsrations Datu plant flaina '. Fort Calho'dn Taut.E 1 Calendar Year 1979 Unit 130.
l
- Reason for DG Hunnb e r llunib e r Percent Duration of Run Operation, & meheduled DC of of I.oading of Ucfore Stop For Identification of Failures Duration of Run tro.
Starts l'a l l u re t DC (KU)
Each DC Failure (Refer to at tached I.EHs or Tahic 3)
Tech. Spec Req'd Test
~
~'
tionthly Surveillance (l stort/ test)
Refueling Outage Mnna (k stort/ test)
DC Actual Demand f',",",$ s" l
3 0
Run 10 to 30 Min. until Operator Shutdown SIAS Signal N
lliscellaneous Tests None (Specify Type)
Verify Repairs (not full test) flone (5 tort Only)
'~
Enclocurs !
TAllt.g t Discat censrator Operations Data l'! an t finiaa Fort Calhoun I
..f.
Catandar Year 1980 unit ils.
1
- Reason for DC tlunib e r ilunils e r Petcent Duration of Run
,8 operation, & scheduled DG of of
!.oad t ng o f liefore Stop For Identification of Failures Duration of Run flo.
Starts l'a l lie r e t.
DG (rtl)
Each DG Failure (Refer to n t r actied I.Ela or Tabl e 3)
I Tach, spec Reg'd Test 1
11 1_(f e_e_Attac_hed _Fajled;0n_ Air Statt 1. Started on 2 (01-1070) tionthly surveillance (Table 5) l 2
10 1
(S ee Attached
>10 Seconds First S'. art. <10 Seconds on Restart (Table 51 Refueling outac*
1 2
1 (f ee Attached I
Failure of 10 Sec. Iluzzer, Second Start Failed LER 80-28 (Table 5)
(I stort/lest) 1 2
1 Failed on Secondary Air. ST-ESF-6. F.2 - See LER 80-30 1
2 0
Run 10 to 30 Min. ti ll Operator Shutdown DG Actual Deinand starts not for Tes t i s.g SIAS Signal 2
2 0
tfiscellaneous Tests 2
3 2
Special Test for IE 79-23. Generator Field Exciter Went (Specify Type)
Max. Manual Shutdc wn to Prevent DG Damaae. Restart failed after rad, leak developed.
3rd Start was successful. See LI R 80-03.
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TAh!.E 2 Plent tir.c3 Fort Calhoun -
(:.-
Diesel Cenerntor Scheduled Downtime Record Unit tio, l
Calendar Year 19]6 llours of Downtime Outage neactor shutdown Reactor not shardown Reason for Outage Date r-- pyg-- D]T~ ~Imr mmT }r nys pyr ocI ocI 2/23/76 3d,2H Overhaul SM 3/10/76 190.5H Service & Inspection per MP-DG-1 (overhaul)
Connected 20000 Res. across contacts 3 & 4 3/18/76 12.lH of CR-120 relay 4/27/76 1.6 D-2 Pri. Air St. Motor Didn't Disengage k!plS$0i310$ecko"kuelline
^
5/13/76 1.0 5/17/76
- 34H, Change Lube Oil & Filters Per EM Manual 34M Check coupling alignment on soak back filter; 5/26/76 7flj4j (Lovejoy coupling spacer replaced) '.
6/7/76 SM No additional information available 8/15/76
- 22H, Adjust Speed Switch 30M b!o'ShYNohd alhe$Nks#
"9 8/16/76 57M 9/27/76 2H.-
No additional information available 15M l
10/20/76
- 12d, l
llHe Overhaul 15M l
11/9/l.6 73H.
Calibrate DG-2 Metering l
25M l
f
.am e A
l l
O
TAlll.E 2 Plent Hans fort Calhoun 1
Diesel Generator Sclieduled Downtime Record Unit 11o.
l Calendar Year 19]7 t
Ilours of Downtime Outage neactor stuitdown neactor not snutdown Reason for Outage Date DCF~ 1gr 7gr~TUF liUT ~ilyl-ijF p<:s oci oct Speed switch improperly set - striking 2/1/77
- 7il, flywheel 25M
~~
2/22/77 94H Overhaul 4/11/77 7W, Overhaul - Check pitch of fan blades 4/18/77
- 54H, Remove, clean and inspect secondary air 42M system 5/23/77 2 H, Change engine coolant, DG-2 8/26/77 1H, Check and repair leaks on lube oil 18M expansion tank 10/12/77 7H, No additional information available 45M 10/26/77 7H No additional information available 12/9/77 lH Repaired transducer for ampmeter.
9 N
-e
.I
-l
Enclosure ! -
~ '
Tant.E 2 g,lant Hms Fort Calhoun -
Dicael Cencrator Sclieduled Downtime necord Unit tio.
1 Calendar Year 1918 1
llours of Downtime Outage neactor sinicaoun neactor not stiutdown Reason for Outage Date Tyq7gr7gr7F7T ogi ngs i>g#
oc#
oci 2/6/78 119H Overhaul 48M Repair gasket leaks on coolant system.
~
2/22/78 8H Perform Chemistry Instruction 78-42 2/23/78 2t Fixed fan blade settings, causing vibration 3M DG-1 angle five for fan, Inspected. pitch 2/23/78 4H N1 on fan blades Replace valve assembly gaskets and cover 3/2/78 6H gaskets on air intake filter. Add anti-18M freeze.
3/13/78 H,
Overhaul - Also, change oil & filters 7/5/78
- 28H, DG-1 Voltage High - Reset Exciter 18M 7/7/78
- 30H, DG-1 Excitation System Malfunction 48M 9/9/78 8H, SA-109, Blowdown valve starting air tanks
(
59M has leak by packing 9/8/78 - Fuel oil filters plugged - Unit 1 q s'W*
p m#
gGSW 9
6
/
Enclo:aure ! -
TAlt!.E 2 Plant flica fort Calhoun Dicaci cencrator Schedule.1 Downtime Record Unit lio.
1 Calendar Year 19 1 9 I!ours of Downtime
' nonctor not shuraoun Outaae neactor stintaoun Reason for Outage Date
'UCl-UC7~ 7CT ~UHF 7TCT linF iiiil-oc r oc#
ocF 1
2 3
1 2
3
)
I Remove Thermostatic Valves from Jacket 2/12/79 10511 Water TCV, check for proper travel 0 rated ten p.
Annual overhaal.
3/9/79
- lli, DG-1 fails to start, relays 104 ElX and '
15M 104 E2X chatter and arc Lube oil recirc. pump - faulty 4/4/79
- lil, coupling
~
30M FCVS Removed, calibrated, replaced 4/23/79 3 711 12711 Overhaul 4/30/79 15M 6/28/79
' 71{
Haintenance to 1ADI breaker, 11/12/79 13311 TCV's for DG-1 cal. and/or replaced.
Annual overhaul.
I i
,em-6 e
m
~
4 Enclosure ! -
TAHl.E 2 Plant irro Fort Calhoun-1 Diesel Cencrator Scheduled Downtime Record Unit flo.
I Calendar Year 19_8_0 Ilours of Downtime Outage Reason for Outage Date Itcactor shutdown Reactor not shutdown Tyr 3GT3Gi~ TV TT f nyg ut:D nci val Diesel DI Immersion heated control trans-7/9/80 Sif former failed due to unknown causes. Re-placed with GE transformer.
7/16/80 27H.
Replaced rusted out portion of exhaust 18M pipe on DG #1 8/11/80 4H.
Changing lube oil.
50M 8/13/80
- 33H, Changing lube oil.
6M Immersion heater DG-1 needed replacing.
9/10/80 8fi 22f Replaced trans. T-4.
9/24/30
- 10H, Repair lube oil leak.
23M 9/25/80
- 271, Repair lube oil leak.
DG-1: Various alarms on the lube oil and 9/29/80 10H*
cooling water. Checked circuits - recon-31M nected wires.
10/27/80 lH, Replaced Immersion Heater Contactor on DG-1, 48M Damaged by Transformer failure on 7/9/80 11/5/80 3H' DG-1 failed to start upon actuation of chan-nel full speed test switch. All circuitr including wire connections were ch,ecked y 48M OK f0 Overhaul Broken air line from. air start solenoid on 11/14/80 2H' DG-1.
Replaced broken air line.
18M DG-1 failed to start on secondary air start 12/11/80 6H, motors. Cleaned air start motors.
24M
'O M
4
/
m - em-TAllt.E 2 Plant linee Fort Calhoun
- Dicael Cencrator Scheduled Downtime Record Unit 110 1
Calendar Year 19g
~
llours of Downtime Outage neactor shutdown neactor not shutdown Reason for Outage Date ycy-per ncy pag eco vag-nag pas oci 000 1
2 3
1 2
3 e*
2/23/81
- ll2H, Overhaul 9M 7/5/81 17H Speed Sensor Replacement aeW ee
/
e TAlli.r. 3 111csel Generntor linuclicifulcel Downtime itecord I'Innt linma Fort Ca]houn
~
Calcodar Year 19J76, 80 Unit 110 1,_
""' " " ~ '
""I
" **E 1.ER Al3s t ract ll.
Downtime llours f ailure under emergency con <litions, plenoc explain licrc.
(itefer to accci ru c-nr s, el pn Ref er to nuoclical. I. Rs r tlic f aMurcs listed in Talsle 1.
- ed I.ER Alastract s)Ilours sliooting tvery.ctc (cplace
~~
^
76-16
<24
,4 78-22
<24 5 See Attached LERs 80-14 5
80-03
<24 l
I n
e O
I
Enclemura 1 TABLE 4 onsite Emirgency Dissnt Ccnerator and Plant Name Fort Calhoun
..%,4 Auxiliary Equipment Hodification Record Unit No.
1 F.:4 Equipment or Date of Reason for Hodification and procedure Hod.
Desired Improvement Description of Hodification sedified D.G. Rooms Better Fire Protection and Isola-Addition of 1. Fire Barrier Mid '79 (DCRFC-77-030) tion Between D.G. 1 and D.G. 2
- 2. Missile Shield
- 3. Louvered Air Intakes D.G. Ten Second Start Provide Control Room Readout of Addition of electrical connection between D.G.
Modification Mid '79 D.G. Start Time
' relay logic to Control Room Plant Computer (DCR 77-23)
Offsite Power Low To prevent failure of complete
!Added an interlock between sequences reset and' Oct '81 Lockout Relays safeguard train with failure of the diesel breaker (MR-FC-79-12 &
one OPLS relay FC-80-42)
D.G. System Total-Late 80 Eliminate Operator Confusion on Rewired the D.G. output to be read out on the izers (MR-FC-80-40)
Early 81 Generation Accounting Station Generation Totalizers rather than Station Use Totalizers D.G. Tachometer Eliminate Noise in the D.G. Tach-Installed a.1 pf capacitor across the output (MR-FC-80-110)
Nov.,81 ometer Circuits leads of the tachometer transmitter e
1 11 I
i TABLE 5 4
r 4
9 9
a d
l i
i 1
i i
4 4
5 a
k i
4 s
r*w, w n-www w -- e, w.,-rec ro *~ww, *-,
---e-we,
. -. -,. -,..,.. - ~. - ~..., -... -, _ - - - -.
--.,-----a
Reason for D.G.
~
Opsration D.G.
Load W Dwadon of Run Data, m e MT Monthly Test a
aHures (ST-ESF-6 )
Table 5 MT 1
1 0
2400 15 Min.
2/11/76 (0922) g MT 2
0 0
DG-2 down for annual over-2/25/76 (0830)
Feb. '76 haul MT 2
1 0
2500 60 Min.
3/2/76 (1337)
(Day Tank Switch 1
1 0
flot Given Not Given 3/10/76 1
1 0
flot Given Not Given 3/20/76 (1200)
S r g Time HT 1
1 0
2100 15 Min.
3/18/76 (1207)
MT 2
1 0
1950 15 Min.
3/29/76 (1141)
MT 1
2 1
2300 17 Min.
4/7/76 (1146)
Apr '76 First Start Unsuccessful (10.6 sec.)
Started on Pri. Air (8.1 sec.)
MT 2
1 0
2500 15 Min.
4/21/76 (1043)
MT 1
1 0
0-4 Min, 1500KW 15 Min.
5/19/76 (0859) 4-15 Min, 2150 May '76 KW MT 2
1 0
2 Min, 1000 KW 15 Min.
S/19/76(1119) 13 Min, 2500 KW MT 1
1 0
2400 13 Min.
6/8/76 (1015)
June '76 11T 2
1 0
2500 15 Min.
6/23/76(1009)
MT 1
1 0
2450 15 Min.
7/7/76 (1308)
July '76 MT 2
1 0
2400 16 Min.
7/21/76(1019)
.HT 1
1 0
2400 15 Min.
8/11/76 (1306)
(AfterMain.)
1 1
0 2400 15 Min.
8/15/76 (0341)
MT 2
1 0
.2450 12 Min.
8/15/76-(0906)
(After Main.)
2 1
0 2500 15 tiin.
8/15/76 (0846)
Aug.,76 (After Main.)
1 1
0 2500 16 Min.
8/25/76 (1018)
OPS.SUP.C0V.ADJ.
(M0 11802) 1 1
0 1000 60 Min.
8/27/76 (1404)
Reason for D.G.
Operation D.G.
Load (KW)
Ouration of Run Date, Time MT Monthly Test a
ad, ures (ST-ESF-6 )
Table 5 (Cont)
MT 1
1 0
2500 12 Min.
9/8/76 (1109)
Sept '76 MT (No reason for
-> 18 Min.)
2 1
0 2500 53 Min.
9/22/76 (1240)
MT 1
1 0
2400 15 Min.
10/6/76 (1632)
Oct '76 MT 2
1 0
10/20/76 ( * )
MT 1
1 0
2500 12 Min.
11/10/76 ( # )
Refueling (Auto Op. Test) 1 1
0 1600 4 Min.
11/15/76 (0906) 2 1
0 1400 8 Min.
11/15/76(0820) 15 Min.(Minimum) 11/24/76 ( * )
2 1
0 Rated
- MT' 1
1 0
2300 19 Min.
12/9/76 (1140)
Dec '76
'MT 2
1 0
2450 15 Min.
12/22/76 (0930)
MT 1
1 0
2500 16 Min.
1/5/77(0857) an '77 MT '
2 1
0 2400 22 Min.
1/19/77 (1314)
, MT 1
1 0
2450 18 Min.
2/9/77 (0836)
Feb '77 MT 2
1 0
2400 13 Min.
2/22/77(1438)
MT 1
1 0
15 Min.(Minimum) 3/9/77 ( * )
Har '77 MT 2
1 0
2200 16 Min.
3/23/77 (l('44)
MT Started PA <10 Sec, Second-Started 15 Min.(Minimum) 4/6/77 ( * )
1st Time 10.6 sec 1
2 1
To Sat. Require.
Apr,77 Interim T.S.'6.6 VA-3A In OP 1
1 0
2300 18 Min.
4/31/77(1320)
MT 2
1 0
2230 18 Min.
4/20/77 (1557)
- Data Unavailable or Ambiguous
Reason for D.G.
Operation
'l D.G.
Load (KW)
Duraticn of Run Date, Time MT Monthly Test Starts Failures (ST-ESF-6 )
Table 5 (Cor.t)
MT 1
1 0
225n 1 Hr. 45 Min.
5/25/77(0914)
May '77 MT 2
1 0
2450 1 Hr. 56 Min.
5/11/77 (1124) l MT 1
1 0
2300 2 Hrs.
6/8/77 (1355) une '77 MT 2
1 0
2470 1 Hr. 22 Min.
6/22/77 (1114)
MT 1
1 0
2250 2 Hrs. 1 Min.
7/6/77(0853)
MT (1) 2 1
0 2400
<l Hr.
7/20/77 ( * )
July '77 MT (2)*
- 2 1
0 2400 2 H.s.
7/21/77 (1110)
MT 2
1 0
2309 2 Hrs.
8/24/77 (1645)
MT 1
1 0
_2500 2 Hrs. 1 Min.
8/10/77(1038)
Aug 17 MT 1
1 0
2200 1 Hr. 59 Min.
9/7/77 (0840)
Sept '77 MT 2
1 0
2300 2 Hrs.
9/21/77(0928)
MT 1
1 0
2500 1 Hr. 45 Min.
10/28/77 (0554)
Oct '77 MT 2
1 0
2400 1 Hr. 58 Min.
10/28/77(0604)
MT - 11/77 - SHUTLOWN-----
MT 1
1 0
2000 1 Hr. 56 Min.
12/9/77 Dec '77 MT 2
1 0
2400 1 Hr. 57 Min.
12/21/77 MT 1
1 0
" Rated" 2 Hrs. by Signoff 1/11/78 ( * )
an '78 MT 2
1 0
2500 1 Hr. 58 Min.
1/25/78 (0859)
MT (0P. Test After Over-haul Also) 1 1
0 2500 1 Hr. 45 Min.
2/11/78 (0632)
'78 MT 2
1 0
2100 2 Hrs. 1 Min.
2/22/78 (1038)
- Data Ur. avail able or ambiguous
- Repeat, due' :o < 2 h( urs on (1).
aa nna aMe or AmMguous i
' Reason for D.G.
Operation D.G.
Load (KW)
Duration of Run Date, Time l
MT Monthly Test s
FaHures (ST-ESF-6 )
Table 5 (Cont)
MT 1
1 0
2350 2 Ifrs. O Min.
3/8/78(1045)
Har '78 l
MT 2
1 0
2450 2 Ilrs. O Min.
3/22/78(1058)
MT 1
1 0
2450 1 Hr. 58 Min.
4/5/78 (0902)
Apr '78 MT 2
1 0
2300 2 Ilrs. 1 Min.
4/19/78 (1121)
MT 1
1 0
2400 1 Hr. 45 Min.
5/10/78 (0844)
May '78 MT 2
0 0
2400 2 Hrs. 2 Min.
5/24/78 (1058)
MT 1
1 0
2550 1 Hr. 55 Min.
6/7/78(0917) l Special Test 2
1 0
" Rated" 2 Hrs. by Signoff 6/13/78 ( * )
June '78 MT 2
1 0
" Rated" 2 Hrs. by Signoff 6/21/78 ( * )
l MT-1 1
1 (on load, 1.ube Oil trip)
' 2350 1 Hr. 23 Min.
7/5/78 (1121) l MT 2
1 2450 1 Hr.
7/19/78 (0851)
July '78 MT 1
1 0
2480 55 Min.
7/8/78 (1855)
~
t Operability Check 2
1 0
>1500 1 Hr. 17 Min.
8/9/78 (1310)
Aug '78 MT 2
1 0
54 Min.
8/23/78 (0847)
MT 1
1 0
2450 1 Hr.
9/6/78 (1043) 3*PU '78 MT 2
1 0
>2200 1 Hr.
9/20/78 (1015)
MT 1
1 0
2400 1 Hr.
10/11/78 (1101)
Oct '78 MT 2
0 0
Refueling --
D.G. Auto OP.
I 1
0
>1400 12 Min.
11/19/78(2036)
D.G. Auto OP.
(Retest) 1 1
0
>1500 10 Min.
11/19/78 (2050) l D.G. Auto OP.
2 1
0
>1500 8 Min.
11/19/78 (2120)
Nov '78 MI 2
1 0
2450 1 Hr. 2 Min.
11/19/78 (2200)
"r 1
1 0
2450 1 Hr. 1 Min.
11/19/78 (2151)
R;a' son,for D.G.
Operation D.G.
Load (KW)
Duration of Run Date, Time MT Monthly Test Starts Failures (ST-ESF-6 )
Table 5 (Cont)
MT 1
1 0
2350 59 Min.
12/9/78 (2151)
Dec '78 MT 2
1 0
2300 58 Min.
12/10/78 (0039)
'MT 1
1 0
2400 59 Min.
1/10/79 (0919)
Jan '79 MT 2
1 0
2350 1 Hr.
1/24/79(1025)
MT 1
1 0
>2500 for'15 60 Min.
2/7/79(0905)
Min. - 1500 Feb '79 for 45 Min.
MT 2
1 0
2450 1 Hr.
2/21/79 (1030)
MT 1
1 0
2350
- 57. fli n.
3/7/79(1037)
MT.
2 1
0
>2500 for 15 60 Min.
3/21/79 (0940)
Mar ;79-Min. - s1900 for 45 Min.
MT 1
1 0
>2500 (+5%)
69 Min.
4/11/79 (17]4) for 15 Min.
s2000 for 45 Apr '79-Min.
MT 2
1 0
>2500 (+5%)
55 Min.
.4/27/79 (1304) for 15 Min.
~
s2000 for 40 Min.
MT 1
1 0
2400 28 Min.
5/18/79 (1338)
"'Y 79 MT 2
1 0
2400 50 Min.
5/23/79 (1108)
MT 1
1 0
>2500 (+5%)
62 Min.
6/6/79(0844) for 15 Min.
's2000 for 47 June.'79 Min.
MT 2.
1 0
2450 52 Min.
6/20/79 (0858)
MT 1
1 0
>2500 (+5%)
60 Min.
7/6/79 (1120) for 15 Min.
s2100 for 45 Min.
R:ason for D.G.
Op: ration e'
D.G.
Load (KW)
Duration of Run Date, Time MT Monthly Test s
arts Failures (ST-ESF-6 )
Table 5 (Cont)
MT 2
1 0
>2450 (-5%)
60 Min.
7/25/79 (1141) for 15 Min.
July '79 s1900 for 45 Min.
MT 1
1 0
2550 (+5%) for 60 Min.
8/8/79(1030) 15 Min. s2250 for 45 Min.
Aug,79-MT 2
1 0
2450 (-5%) for 60 Min.
8/24/79(0850) 15 Min. s2000 for 45 Min.
MT 1
1 0
.15 Min. 0 2550, I Hr.
9/5/79 (0853) 45 Min. Os1100 Sept '79 MT-2 1
0 2500 for 15 Mir i Hr.
9/19/79 ( * - )
s2000 for.45.
Min. (By Check off)
MT 1
1 0
15 Min 0 8ase 1 Hr. (by Signoff) 10/10/79 ( * )
(2500) 45 Min.
O <2500 by Oct '79 Proc.)
MT 2
1 0
2500 1 Hr.
10/24/79 (0950)
MT 1
1 0
2450 1 Hr.
11/8/79 (0902)
Nov '79 MT 2
1 0
11/21/79 MT 1
1 0
15 Min 0 2500 1 Hr. 5 Min.
12/5/79(0915) 50 Min 0 2450 Dec '79 MT 2
1 0
2450 58 Min.
12/19/79(1418)
MT 2
0 REFUELING Jan '80 MT 1
1 0
2400 1 Hr'.
1/9/80 (1138)
MT 1
1 0
15 liin 0 2500-55 Min.
2/21/80(1819) 40 Min 0 2000 Feb,80
- Dati Unavailable'or Ambiguous
'Rea' son for D G.
Operation Date, Time D.G.
Load (KW)
Duration of Run MT' Monthly Test Starts
_ Failures (ST-ES F-6 )
Table 5 (Cont)
Mar '80
" REFUELING" MT 1
1 0
15 Min 0'(+5%)
1 Hr.
4/9/80 ( * )
of 2500, 45 (By Procedure Min @ s2000
-Signoff)
Apr '80 (By Procedure Signoff)
MT 2
1 0
15 Min @ (45%)
1 Hr.
4/23/80 ( * )
of 2500, 45 (By Procedure Min @ s2000 Signoff)
(By Procedure Signoff)
MT 1
1 0
2450 1 Hr.
5/7/80 (1157)
May '80 MT 2
1 0
2450 55 Min.
5/22/80 (0912)
MT 1
1 0
2400 1 Hr.
6/11/80 (1328)
June '80' MT 2
1 0
'15 Min @ -5%
58 Min.
6/25/80 (0937)
(2450) 43 Min
@ 2200 MT 1
1 0
15 Min 0 -5%
50 Min.
7/9/80 (0859)
(2450) 35 Min July '80 0 2200 MT 2
1 1 (10.8sec) 15 Min @ -5%
1 Hr.
7/31/80(1130) 2nd 10 sec (2450) 45 Min-(Shutdown inn. @
@ 220.0 first try)
MT 1
1 0
15 Min @ -5%
1 Hr.
8/6/80 (1042)
(2450) 45 Min
@ 2100 Aug '80 MT-2 1'
0
< 2400 55 Min.
8/20/80 (0855)
(15 Min s 2470, 40 Min s 2470)
- Data Jnavailable or Ambiguous
Rea' son for D.G.
f Operation D.G.
Lead (KW)
Duration of Run Date, Time MT Monthly Test Starts Failures (ST-ESF-6 )
Table 5 (Cont)
MT 1
1 0
2470 1 Hr.
9/11/80 (0849)
Sept '80 MT 2
1 0
15 Min @ -5%,
55 Min.
9/24/80 (1743)
(2450), 40 Min
@ 2150 MT 1
1 0
2450 48 Min 10/8/80 (1048)
Oct '80 MT 2
1 0
15 Min @ -5%
60 Min 10/22/80 (1047)
(2450) 45 Min @
2300 MT 1
1 0
15 Min +5%
45 Min 11/10/80 (1252)
(2550), 30 Min c2200 Nov ',80 MT 2
1 0
2300 1 Hr.
11/19/80 (1306)
MT 1
1 (Faildn 15 Min 0 -5%
'5 Min.
12/12/80 (0822) air 1, start (2450), 40 Min Dec,80 on air 2)
@ s2200 MT 2
1 0
2400 56 Min.
12/23/80(0701)
MT 1
1 0
15 Min 0 -5%
55 Min.
1/7/81 (0848)
(2450), 40 Min Jan '81 at s2200 MT 2
1 0
2400 57 Min 1/21/81 MT 1
1 0
15 Min @ -5%
57 Min.
2/11/81 (1005)
(2450), 42 Min
)
@ s2100 Feb '81 MT 2
1 0
2300 74 Min 2/27/81 (1929)
MT 1
1 0
15 Min @ -5%
55 Min 3/11/81 (1037)
(2450), 40 Min Mar '81
@ 2300 f.
MT 2
1 0
15 Min @ -5%
57 Min.
3/25/81 (0952)
I (2450), 42 Min
@ s2300
(
h a
' Reason for D.G.
0; o
Operation D.G.
Load (KW)
Duration of Run Date, Time MT Monthly Test a s aHures (ST-ESF-6 )
Table 5 (Cont)
MT 1
1 0
2450 58 Min 4/8/81 (1657)
Apr '81 MT 2
1 0
2450 58 Min
.4/22/81 (1309)-
MT 1
1 0
2450 58 Min 5/6/81 (0907)
May '81 MT 2
1 0
15 Min 9 F.P.
60 Min 5/20/81 (0931)
(2500)45 Min 0 2450 Operability After Speed Sensor Re-placement 1
1 0
15 Min +5% 2500 60 Min 7/6/81 ( * )
45 Min s2000 (8y Procedure July '81 Sifjnoff)
MT 1
1 0
2430 56 Min 7/8/81 (0943)
MT 2
1 0
15 Min 0 2500 58 Min 7/23/81 43 Min 0 2200 MT 1
1 0
2450 1 Hr. 1 Min.
6/10/81 (1254)
June '81 MT 2
1 0
2400 1 Hr. 1 Min.
6/24/81 (0921)
MT 1
1 0
15 Min 0 2450 1 Hr.
8/5/81 (1035) 45 Min 9.2200 Aug '81 MT 2
1 0
15 Min 0 2450 1 Hr. 2 Min.
8/19/81 1051) 47 Min 0 2200 MT 1
1 0
2400 1 Hr.
9/9/81 (0846).
Sept '81
--REFUELING------
MT 2 - - - - - - - - - - - - -
MT 1
1 0
2500 + (30 Min) 37 Min 10/19/81 (0024) 1100'(7 Min)
Oct '81 MT 2
1 0
15 Min s 2:,00 1 Hr. 7 Min.
10/20/81 (2223) 52 Min s 2200
- Data Unavailable or Ambiguous
9 e
9 LICENSEE EVENT REPORTS r
j.
LICENSEE EVENT REPORT
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I I
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(PLEASE PRINT DR TYPE ALL REQUIRED INF*RMATTOts)
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8 60 63 OOCKET NUM8ER 68 69 EVENT DATE 74 IS REPORT C ATE -
80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h oi2l l Durino the oerformance of ST-ESF-6, F.2, Aopendix F. Diesel Gunerator #1 (DG-1) i O #3; l failed to start on its secondary air system. DG-1 was removed from service in i
O # 41 I accordance with Tech. Spec. 2.7(2)i and the secondary air start motors were re-l
.Ois) i paired.
Prior to the incident, DG-1 had successfully started on its primary air I
- O is i i start system.
In addition, DG-2 was started to verify its operability.
I 40171 I I
. O ia l l I
7 8 9 80 E
OE SUSCO E COMPONENT CODE SUSCOO'E S
E 019l l E l E l@ W@ l B l@ I E l N I G l I I N l E l@ [Z_J@ L ZJ @
r 8
9 10 11 12.
13 18 19 20 LER EVENT YEA R REPORT NO. [-'
SEQUENTIAL OCCURRENCE REPORT REVISION CODE TYPE NO.
@ geg/RO 18101 L--J 1013I01'-
1-1 10131 i LI L-J l 01
_ 21 22 23 24 26 27 28 29 30 31 32 A
ON ONP T
ME HOURS 22 S8 i FOR B.
SU LE MANUF RER l B l@l Z l@
l Z l@
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33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS li 101 l The vanes of the air motors were stuck which orevented the motors from turnino. Thd li til I vanes were cleaned, the motors were installed and DG-1 was successfully started enj li12i I its secondary air start system. To prevent future simil ar events, the air start I
iii3l l motors and the air line strainers will' be inspected and cleaned annaally per l
i i i. i l surveillance test ST-ESF-6.
l 7
8 9 80 STA
% POWER OTH ER STATUS Di V RY DISCOVERY DESCRIPTION i i s I (_EJ@ l 0 l 7 l 5 l@l NA l
lBl@l Surveillance Test I
' !nviTv COArENY A
F.ELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 1 l6 l [_Zj @ [Z_j@l NA l
l NA l
PERSON ~Et ExPOSSES oESCRiPnON @
NUv8ER TYPE t I 7 l 10 l 0 l0 l@lZ l@l NA l
' PERSONNe't iNau' lies NUUSER DESCRIPTION i 181101010 l@l NA l
8 9 11 12 80 E
DESCR PT ON 191 lZ l@l NA l
8 9 to 80 2 l a l Qi_j@ DESCRIPTION ISSUE l
NA I
l l l l l l l l l l 1 I li N
nh, ofo, John J. Tesarek _
.,uny,.402-426-4011
- s-LER No.80-030
. 0maha Public Power District
. Fort Calhoun Station Unit No.1 Docket No. 05000285' ATTACHMENT NO.-1 Safety Analysis Fort Calhoun Station Unit No.1 is designed such that a single failure cannot adversely affect the ~ ability of.the plant to be safely shutdown in the event of an accident. Although DG-1 failed to' start on its secondary air start system, it had previously successfully started on its primary air system.
In addition, DG-2 and both redundant offsite power supplies (161 KV and 345 KV) were available during the time that DG-1 failed to start on its secondary air system.
1
...,,, +,,,,..,, - -,..
LER No.80-030 Omaha Public Power District Fort Calhoun Station Unit No. I Docket No. 05000285 ATTACHMENT N0. 2 Corrective Action M.0. #8169 was initiated to repair the secondary air-start motors of DG-1.
An inspection of the motors revealed that the vanes were stuck which prevented the motors from turning. The primary and secondary air start systems will be. tested periodically per ST-ESF-6.
In addition, the primary and secondary air start motors and the air line strainers on the primary and secondary aid' start systems will be inspected and cleaned annually per ST-ESF-6.
The air line lubricators on'the primary and secondary air start systems will also be inspected annually.and, if necessary, they will be cleaned.
G t
4
.w.
LER No.80-030 Omaha Public Power District Fort Calhoun Station Unit No.1 Docket No. 05000285 ATTACHMENT N0. 3 Failure Data Previous related incidents are detailed in Unusual Event 73-5, Ab-normal Occurrence 75-20 and LER 77-12.
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