ML20136G733
| ML20136G733 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 10/31/1985 |
| From: | Hukill H, Smyth C GENERAL PUBLIC UTILITIES CORP. |
| To: | Mcdonald W NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| 5211-85-2189, NUDOCS 8601080449 | |
| Download: ML20136G733 (7) | |
Text
'
OPERATIONS
SUMMARY
OCTOBER, 1985 TMI-l achieved criticality on October 3,1985 at 1330 hours0.0154 days <br />0.369 hours <br />0.0022 weeks <br />5.06065e-4 months <br /> following the 6-1/2 year shutdown due to Commission order and compounding court action.
The plant proceeded through Zero Power Physics Testing and Low Power Natural Circulation Testing with relatively few minor problems or delays. The Turbine Generator was brought on line on October 9,1985 with the generator breakers being closed at 0402.
On October 9,1985, a steam leak developed on a turbine drain valve drain line at a crack on a socket weld joint connecting the drain-pipe to a strainer housing.
A split pipe sleeve welded over the crack was mde and the drain was returned to service October 12, 1985.
The following day with the unit at 29%
power, the strainer housing cracked at a new point adjacent to the original leak. With the turbine / generator off line, this section of pipe and strainer was replaced with straight pipe and a new elbow. That same day, October 13, 1985, the repair was complete and the turbine / generator as placed in service. Ten hours following returning the turbine / generator to service (October 14,1985), the new socket weld on the new elbow failed. At 0240 power was reduced from 28% and the turbine / generator was taken off line.
The resultant repair contained a flanged joint and no strainer housing. The turbine / generator was then placed in service at 2115.
Subsequent to this third repair, on October 16, 1985, the-turbine / generator was taken off line as a result of a crack on a different drain line. The crack occurred on a similarly designed line containing a strainer housing.
This line w s repaired in the same mnner as the repair on the similar line.
The turbine / generator was placed in service and on October 17, 1985 the original line had a weld failure again. The turbine / generator was again taken off line to evaluate the repair.
The leak was finally repaired based on the turbine manufacturers recommendations (with GPUN's input). The cause of the leaks was that the TMI-l turbine had been converted to full arc admission causing a low amplitude high frequency oscillation on this drain line leading to a weld fatigue failure due to loading from concentrated system msses (strainer and flanges). The final repair eliminated these system msses and the unit was placed on.line the final tim on October 18, 1985.
On October 21, 1985, a planned trip on loss of min feedwater was performed from 40% power and the following subsequent startup power was leveled off at 48% on October 24, 1985. TMI-l has been stable at 48% power and will hold here for 30 days bued upon the Power Escalation Test Program. To date, the Power Escalation Program has been accomplished as scheduled.
U601060449 851031 PDR ADOCK 05000289 ph p R
PDR p
MAJOR SAFETY RELATED MAINTENANCE During the month the following major maintenance items were performed.
On Line Leak Sealing - On line leak sealing (Furmanite compound injection) was perforced on the following components:
1.
MS-Y-70B - Bonnet to Body Leak 2.
FW-Y-1093 - Bonnet to Body Leak 3.
MS-V-19C - Safety relief valve heated post union leak (reinjection - originally furmanited September,1985) 4 "A" 0TSG Emergency Feedwater riser flange leak.
All leaks were satisfactorily sealed.
1 1
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OPERATING DATA REPORT DOCKET NO.
50-289 DATE 10/31/85 COMPLETED BY C.W. Smyth TELEPHONE (717) 948-8551 OPERATING STATUS NOTES UNIT NAME:
THREE MILE ISLAND UNIT 1 REPORTING PERIOD:
OCTOBER
,1985.
(. WT) :
2535.
LICENSED THERMAL POWER M
NAMEPLATE RATING (GROSS MWE) :
871.
DESIGN ELECTRICAL RATING (NET MWE) :
819.
MAXIMUM DEPENDABLE CAPACITY (GROSS MWE) :
824.
. MAXIMUM DEPENDABLE CAPACITY (NET MWE) :
776.
).
IF CHANGES OCCUR IN (ITEMS 3-7) SINCE LAST REPORT, GIVE REASONS:
). POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE)
}.
REASONS FOR RESTRICTIONS, IF ANY:
THIS MONTH YR-TO-DATE CUMMULATIVE HOURS IN REPORTING PERIOD 745.
7296.
97873.
NUMBER OF HOURS REACTOR WAS CRITICAL 632.8 632.8 32364.6 REACTOR RESERVE SHUTDOWN HOURS 32.7 32.7 871.2 HOURS GENERATOR ON-LINE 409.0 409.0 31589.9
. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
. GROSS THERMAL ENERGY GENERATED (MWH) 419796.
419796.
76950867.
. GROSS ELECTRICAL ENERGY GENERATED (MWH) 117180.
117180.
25601510.
NET ELECTRICAL ENERGY GENERATED (;MWH) 87556.
87556.
23927609.
UNIT SERVICE FACTOR 54.9 5.6 32.3 UNIT AVAILABILITY FACTOR 54.9 5.6 32.3 UNIT CAPACITY FACTOR (USING MDC NET) 15.1 1.5 31.3
. UNIT CAPACITY FACTOR (USING DER NET) 14.3 1.5 29.9
. UNIT FORCED OUTAGE RATE 42.6 94.4 65.1
). SHUTDOWNS SCHEDULED.OVER NEXT 6 MONTH 3 (TYPE, DATE,.AND DURATION OF EACH
}l Eddy Current Outage (Steam Generators); ffarch 22, 1986: 35 days
).IFSHUTDOWNATENDOFREPORTPERIOD, ESTIMATED DATE OF STARTUP:
i l
[
~
i AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.
50-289 UNIT TMI-l DATE 10/11/95 COMPLETED BY C.l!. Smyth TELEPHONE (717) 940-8551 l
I i
MONTH:
OCTOBER i
t DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-NET)
(MWE-NET) l 1
-37.
17
-18.
i 2.
-36, 18
-19.
3
-37, 19 268.
i 4
-38.
20 267.
l 5
-37.
21 192.
6
-37.
22
-40.
7
-27.
23
-12.
I 8
-38.
24 327.
9 31.
25 322.
l 10 50.
26 331.
l 11 53.
27 344.
[
12 114.
28 334.
i 13 59.
29 330.
14
-7.
30 337.
l 15 209.
31 338.
l 16 119.
L k
1 j
t I
t f
L t
i i
i i
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f
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T 50-289 DOCKET NO.
UNIT SIIUTDOWNS AND POWER REDUCTIONS UNIT NAME TMI I DATE 10-91 95 l
C E DB REPORT MONDI OCTOBEP, i
e e
y, j?
3 Licensee Ew Cause & Correttive No.
Date R
3g j
2sE Event p
g'8 Action to g'
Prevent Recurrence yE 4
jgg Report 8r mV H
d j
1 851013 F
10 hrs A
1 N/A HA PIPE A Steam Drain Line Leak 2
851014 F
20 hrs A
1 M/A HA PIPE A
. Steam Drain Line Leak
)
3 851016 F
10 hrs A
1 N/A HA PIPE A Steam Drain Line Leak 4
851017 F
44 hrs A
1 N/A HA; PIPE A Steam Drain Line Leak 5
351021 S
48 hrs B
3 N/A IA IMSTRU Reactor Trip Testing I
2 3
4 F: Forced Reason:
Method:
Estubit G - Instructions S: Ssheduled A-Fquipment Failure (Lsplam) l Manual for Pseparatwn of Data i
B Maintenance of Test 2-Manual Scram.
Entry Sheets for Lisensee C Refueling 3-Autonutic Scram.
Evens Report ILERn File INtlREG-D-Regulatory Restricsson 4-Ot her ilTelaml 016l1 E4)perator Traimng & Lnenw I ununation F-Adnunistraine 5
G-Operaignal I iror IINplam l F stubit I - Same Source Il-Other I E splam l 6
Actually used Exhibits F & 11 NUREG 0161
i l
REFUELING INFORMATION REQUEST 1.
Nam of Facility:
Three Mile Island Nuclear Station, Unit 1 1
2.
Scheduled date for next refueling shutdown:
December 6, 1986 3.
Scheduled date for restart following refueling:
May 4, 1987 4.
Will refueling or resumption of operation thereafter require a technical i
specification change or other lit.ense amndent?
Yes If answer is yes, in general, what will these be?
Conversion to 18 nonth fuel cycle with associated changes to Power Inbalance, Quadrant Tilt and Rod Insertion Limits.
If answe-is no, has the-reload fuel design and core
~
configuration b?en reviewed by your Plant Safety Review l
Committee to determine whether any unreviewed safety i
questions are associated with the core reload (Ref.10 CFR Section 50.59)?
No l
If no such review has taken place, when is it scheduled?
To be determined.
l 5.
Scheduled date(s) for submitting proposed licensing action and supporting information:
November,1986 i
6.
Inportant ifcensing considerations associated with refueling, e.g. new or different fuel design or supplier, unreviewed design or. perfornance analysis ethods, significant changes in fuel design, new operating i
procedures:
None 7.
The number of fuel assenblies (a) in the core, and (b) in the spent fuel storage pool:
(a) 177 (b) 208 i
8.
The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is j
planned, in number of fuel assemblies:
I The present ifcensed capacity is 752. There are no planned increases at this time.
9.
The projected date of the last refueling that can be discharged to the l
spent fuel pool assuming the present ifcensed capacity:
i 1991 is the last refueling discharge which allows full core off-load capacity '(177 fuel assemblies).
i 4
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r.-
I GPU Nuclear Corporation
]..
gg gf Post Office Box 480 Route 441 South Middletown, Pennsylvania 17057 0191 717 944 7621 TELEX 84 2386 Writer's Direct Dia' Numbee Nove & r 15, 1985 5211-85-2189 Office of Management Information and Program Control Attn:
W. C. Mcdonald 2
c/o Distribution Services Branch DPC, ADM U. S. Nuclear Regulatory Commission Washington, D.C. 20555
Dear Mr. Mcdonald:
Three Mile Island Nuclear Station, Unit I (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 Monthly Operating Report October,1985 Enclosed please find two (2) copies of the October,1985 fionthly Operating Report for Three Mile Island Nuclear Station Unit-1.
Si ncerely, H. D.
ukill Director, TMI-l HDH:DVH:spb Attachments cc:
V. Stello Dr. T. E. Murley 0015C h
GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation x