ML18004A367
| ML18004A367 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 07/28/1986 |
| From: | Zimmerman S CAROLINA POWER & LIGHT CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NLS-86-268, NUDOCS 8608040109 | |
| Download: ML18004A367 (15) | |
Text
I REGULA Y INFQRNATION DISTRIBUTIQ
>YSTEN (R lDS)
ACCESSION NBR: 8608040109 DOC. DATE; 86/07/28 NOTARIZED:
NO DQC}(ET FACIL: 50-400 Sheav on Hav v is Nuclear Poiiier Planti Unit ii Cav olina '5000400 AUTH. NAflE AUTHOR AFFILIATION ZINYiERltANiS. R.
Cav olina Poiiier 5 Light Co.
RECIP. NAl'lE RECIPIENT AFFILIATIOiN DENTQN> H. R.
QFfice oF Nucleav Reactor Regulationi Div ector (post 851125
SUBJECT:
Foriiiards updated status re TDI Owners Qroup DR/GR Phase I
diesel generator components v ecommendati ansi pev'60708 conference call.
DIBTRIDIITIDNCEDE:
9001D CQPIEB RECEIVED: LTR g ENCLf SIZE:
TITLE: Li.censing Submittal:
PSAR/FSAR Amdts 8c Related Correspondence NOTES: Application for permit reneiiJal Piled.
05000400 REC IP IENT ID CODE/NAI'1E PNR-A EB PNR-A FOB PNR-A PD2 PD PNR-A PSB INTERNAL: ADN/LFl'lB IE FILE IE/DGAVT/GAB 21 NRR PNR-B ADTS NRR/DHFT/NTB RQN2 COPIES LTTR ENCL 1
1 1
1 1
0 1
1 1
1 0
1 3
3 REC IPIENT ID CODE/NANE P4JR-A EICSB PWR-A PD2 LA BUCKLEY'S B 01 PWR-A RSB ELD/HDS1 IE/DEPER/EPB 36 NRR BMR ADTS NR RQE. N. L 1I/NIB COPIES LTTR ENCL 2
1 1
1 0
1 1
1 0
1.
1 0
EXTERNAL: BNL(ANDTS ONLY)
LPDR 03 NSIC 05 1
1
'MB/DSS (ANDTS) 1 1
NRC PDR 02.
1 PNL GRUEL' 1
1 1
TOTAL NUNBER OF COPIES REQUIRED:
LTTR 30 ENCL 25
h I
L F
II I
SNK Carolina Power 8 Light Company JUL 28 mSe
(
SERIAL: NLS-86-268 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 - DOCKET NO.50-000 TDI DIESEL GENERATORS
Dear Mr. Denton:
In a conference call with a member of your staff on 3uly 8, 1986, Carolina Power R Light Company was requested to provide additional information concerning TDI Owners'roup recommendations for the DR/QR Phase I components.
Attachment 1 provides an updated status of the Phase I components for the Shearon Harris Nuclear Power Plant diesel generators.
II Should you have any questions concerning this fetter, please contact Mr. Patrick P.
Carier at (919) 836-8165.
Yours very truly, P PC/vaw (0017P PC)
Attachment S. R.
im erman ager Nuclear Licensing Section cc:
Mr. B. C. Buckley (NRC)
Mr. G. F. Maxwell (NRC-SHNPP)
Dr. 3. Nelson Grace (NRC-RII)
Wake County Public Library Sb08040109 8b0728 FDR ADOCK 05000400 8
PDR 411 Fayettevitte Street o P. O. Box 1551
~ Raleigh, N. C. 27602
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Page I of 8 ATTACHMENT 1 SHEARON HARRIS NUCLEAR POWER PLANl PHASE I COI4%NENT TASK/STATUS ADDIT IONAL INFORMATION TO SUPPLEMENT DR/
REPORT This summary listing addresses as a minimum all of the items in the applicable DR/QR Component Quality Revalidation Checklist that had not been resolved when the DR/QR report was issued'PE,L~s letter of December 20, 1984 (NLS-84-490) presented the component preservice inspection results and identified the inspections to be performed subsequent to engine operations The latter inspection results are provided in CPiIL's letter of February 11, 1986 (NLS-85-464),
Nomenclature/Group Parts List Status 1.
MP-022/023 Turbochar er a.
Perform a visual inspection on the bearing and nozzle ring for signs of wear and cracks.
la.
Visual inspections performed per site procedures revealed no wear or cracks.
Both IA turbo inspected post 200-hour run with satisfactory results.
b.
Verify that the proper number of bolts on the turbine inlet casing are installed'b, Correct number of bolts are installed as per Elliot Co.
Vendor manual for 90G Turbochargers.
c, Verify that the proper torque loads are applied to the bolts of the turbine inlet casing.
lc.
Torque of 50-60 lb.-ft, was applied and is required for subsequent torquing per approved site procedure.
d.
Perform a liquid penetrant test on the stationary nozzle ring for signs of adverse wear and cracking.
ld.
As per TDI 0/G Phase II Report, a visual inspection performed showed no evidence of wearing or cracking.
e.
The TDI recommended drip system should be retained for minimizing thrust bearing wear associated with automatic fast starts.
The quantity of oil passing through the turbocharger should be at least 0.1 gph but should not exceed 0.34 gph.
le.
The recommended drip lubrication systems is installed per approved site procedure, and oil flow verified to be 0,3 GPH, f ~
Verify that SIM 300 was implemented and perform a liquid if'urbochargers are not of the design specified in SIM-300.
penetrant test on welds retaining the core plug (hub nut) ~
At SHNPP, no core plug is used, but a plate welded to the In addition, verify that the core plug is staked.
inlet casing shell (360 degrees weld around plate) ~
'4017ATTACH/vaw )
Page 2 of 8 Nomenclature/Group Parts List Status 2,
02-305A C 6 D Base Assembl and Bearin Ca s a.
Verify that preload torque requirements are applied to the main bearing caps during engine installations 2a.
Proper main bearing cap preload torque requirements established by tensioning all studs within the range of 0,051u to 0,056>>,
3 ~
02-310A Crankshaft a.
Perform torsiograph test.
3a.
Torsiograph test performed on IA engine only, as previously advised in CPEL LTR NLS-85-464 of February 11,, 1986 to NRC, This test concluded that the engine is acceptable for intended use.
b.
Compare torsiograph test with the TDI Holzer calculations and the vibrational analysis.
3b, A review of Failure Analysis Associates (F AA) Report F AA-PA-R-85-10-03 shows:
stresses are below DENA~s aallowables; engine will run In an adequately balanced manner; the first natural frequency is 28.8HZ (in agreement with TDI Holzer calculations)
~
c.
Polish main journal oil holes as required.
3c.
The oil passages have been polished/repolished
~
d.
Reinspect main journal oil holes that were previously found unsatisfactorily, 3d.
Inspection (50') by F AA subsequent to polishing and a
200-hour run revealed no relevant indications, Previously reported indications were removed by flex-honing, 4 ~
02-315A C linder Block a.
Liner bore and mating block dimensions must be checked in order to evaluate the interaction of the block and liner.
Use data to verify similarity with Shoreham for liner/block bore interaction.
4a, Cylinder liners were reworked by TDI and included machining to improve clearance between liner and block/cylinder head; additionally Liquid Penetrant inspections of liner landing, fillet radius and face showed no relevant indications, b.
Perform an eddy current test (Engine IB-SB only) on the cylinder head stud holes.
4b, Based on satisfactory liquid penetrant test inspections between stud hole and liner mating surfaces, no eddy current inspection was performed'his is in compliance with TDI OR/QR report item 5 on Page Bi Tab 02-315A ~
(4017ATTACH/vaw )
Page 3 of 8 Nomenclature/Group Parts List Status 5 ~
02-315C C linder Liners a.
Verify liner dimensions including bore, length, height, O,D., and shoulder height for all cylinder liners.
P A
5a.
Liner dimensions (less length) measured and found acceptable; overall length not taken since requirement imposed after machining of liners by TDI ~
Liner proudness measurements obtained and found to be less than 0.0025 inches on all cylinders.
b.
Visually inspect the outside pilot diameter where it contacts the cylinder block on all cylinders.
5b.
Performed X
II, Y measurements and compared to lead engine records.
Readings obtained were within tolerance, c,
Visually inspect all reworked cylinder liners over the zone of piston travail 5c.
The cylinder liners were inspected during initial teardown ~
No abnormalities noted on engine IA post 200-hour inspection readings and visual attributes revealed no abnormal conditions or wear, d.
Perform visual inspections of liners for potential progressive wear after engine endurance run and before placing the engines in the Emergency Standby Mode.
5d.
Based on post 200 hour0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> inspection and measurements on IA, no indication of progressive wear is occurring, As a result of the wlAu inspection, this inspection will not be performed on IB~
e.
NCRs 84-1272,
-1273, and -1274 5e.
These NCRs have been resolved and are closed'
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02-315E C linder Block Liners and Water Manifold:
Studs a.
Incorporate the following into the assembly procedures:
Lubricate the cylinder head blockside threads with engine olid Torque the studs into the block to 80-120 ft-lbs.
Use the necessary lockwashers (shims) to obtain a
stud-free length of 15w + I/16<<.
6a.
Completed during initial reassembly using approved site procedures:
incorporated into approved maintenance procedures.
SHNPP utilized a 50-50 mixture of graphite and engine oil (per TDI Drawing 02-315-04) ~
b.
Perform a visual inspection of the new head studs for signs of distress.
6b, Cylinder head studs were replaced with new design studs, No signs of distress was evident at time of installation.
Additionally, on IA, no anomalies were noticed during post 200-hour inspection.
(4017ATTACH/vaw )
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Page 4 of 8 Nomenclature/Group Parts List Status 6 ~
02-315E C linder Block Liners and Water Manifold:
Studs (Cont'd) e.
NCRs 84-1195,
-1268, and -1269 '
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02-340A'onnectin Rods and Bushln s 6e, These NCRs have been resolved and are closed.
a.
Perform a clearance check at the link rod/link pin connection to verify the zero clearance when the specified bolt torque of 1050 ft-Ibs is applied'his is a one time only check.
7a.
Check perform during reassembly showed clearance to be less than 0.0015>>
when 1050 Ib-ft torque applied (per TDI SIM 349) ~
b.
Perform a visual inspection of the rack teeth surfaces for signs of fretting and prior to reassembly inspect mating surfaces to verify thai the minimum manufacturer's recommended percent contact surface is obtained, 7b.
Visual inspection of surfaces for fretting was done initially and post 200-hour run (505).
No fretting observed either
- time, Minimum contact obtained was BIJOU Manufacturers minimum acceptable is 755 ~
c.
Perform a visual inspection of all connecting rod bolt washers and contact surfaces for signs of galling.
7c.
Some minor galling was apparent on a few washers, This was evaluated by site engineering and deemed acceptable d.
Verify that the torque loads on all connecting rod bolts are in accordance with the latest TDI recommended values.
7d.
Connecting rod bolts torqued to 1700 Ib-ft during initial reassembly, Approved site procedures specify 1700 Ib-ft to be applied in 4 increments for any subsequent work; 50-50 mixture of oil and graphite applied to threads.
e.
It is recommended that an eddy current examination be performed on ihe rod box threads and cast impressions be taken and examined to ensure the tears in the threads do not propagate.
This is to be done at the next refueling outage not to exceed 200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> of additional engine operation.
7e.
F AA performed eddy current examination on IA rod box threads (rods Ll, L2, L6, and L7) during post 200 hour0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> run inspections and concluded that indications noted correspond to those previously reported and that these indications do not exhibit proper phase angle to be considered crack Indications but rather correspond to thread crown discontinuities.
f.
It is recommended that wrist pin bushings R2B and L4B be replaced upon engine reassembly because they failed to meet acceptance criteria.
This is reported by NCR 1570 which remains open.
7f.
New replacement bushings installed after being subjected to a
100$ I,D. penetrant examinations NCR 84-1570 has been resolved and is closed'4017ATTACH/vaw)
Page 5 of 8 Nomenclature/Group Parts List Status 7 ~
02-340A Connectin Rods and Bushin s (Contend) g.
It. is recommended that connecting rod bolt IA-6-4 be replaced upon engine reassembly as it failed liquid penetrant and magnetic particle examinations as reported by TERS02-014'g, New bolt installed utilizing approved site procedure, h.
Verify the proper fit-up for the serrated joint of the connecting rods.
7h, A minimum contact area of 81$ was obtained; 75$ or greater is acceptable.
Approved site procedures require this check during future engine inspections.
8 ~
02-3408 Connectin Rod Bearin Shells No outstanding items.
8a.
A bearing shell on both engines has been replaced'b, NCR~s 84-1271, 1639 and 1640 have been resolved and are closed'c, Visual and dimensional inspections of shells for rods I, 4, 5 and 8 performed on IA after 200-hour run, Results satisfactory.
9.
02-341A Pistons Inspect and measure skirt and piston pin (AE Skirts) ~
The AN style piston skirts have been replaced with the AE
- style, Inspections and measurements performed concluded satisfactory results.
Piston assemblies were completed as per TDI DWG 03-341-7319 (FCR-M-1213) ~
10.02-359 Air Start Valves a,
Implement TDI SIM 329.
10a.
TDI SIM 329 had been incorporated during manufacturers
- assembly, Copper gaskets, furnished as part of field gasket kits supplied by vendor, were installed during initial Inspection
~
b.
Implement TDI SIM 360.
10b, TDI SIM 360 has been implemented.
Replacement capscrews supplied by vendor were installed.
(4017ATTACH/vaw)
C "A
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Page 6 of 8 I
Nomenclature/Group Parts List Status 10.02-359 Air Start Valves (Cont'd) c.
Verify initial and hot torque values for holddown capscrews, 10c. Accomplished during reassembly and engine operation.
approved site procedures require initial and hot retorquing requirements to 150 Ib-ft, 11 '2-360A C linder Head The following quality inspections should be performed on four of the sixteen IA replacement heads and on one of the three replacement heads for Engine IB.
Head indications observed initially caused all nonWroup III heads to be replaced'or the heads now on the engines, all were UT inspected and 25 percent were PT and MT inspected'nly acceptable heads are inservice.
a, Perform a liquid penetrant test of the valve seating surfaces.
lla. Original heads were inspected with indications observed.
Penetrant test performed on 5 replacement heads (3 for IA and 2 for IB),
No relevant indications noted'.
Perform a magnetic particle test on the fire deck area excluding the valve seating area.
Ilb. Original heads were inspected with indications -observed.
Magnetic particle test performed on 5 replacement heads (3
for IA, 2 for IB) ~
No relevant indications noted, c.
Determine the thickness of the fire deck area by performing an ultrasonic test at six locations on the deck.
llc. Sixteen replacement heads for IA, and 3 replacement heads for IB were UT~d for thickness.
All readings were greater than 0,400u, d,
NCR 84-1635 ~
Iid. This NCR has been resolved and is closed'2
'2-365C Fuel In ection Tube Assembl a,
Examine all high pressure fuel lines using eddy current
- testing, 12a.
Some tubes contained indications during initial inspections Replacements were obtained from spare Unit 2 engine, and only those containing no relevant indications were installed on both engines.
(4017ATTACH/vaw )
Page 7 of 8 Nomenclature/Group Parts List Status 13 '2-390CdD Hain and Connector Pushrods a.
For future purchases of pushrods, it is recommended that the purchase order specify destructive verification of weld quality by sectioning random samples from each manufacturing lot.
13a. Approved site procedures specify random destructive verifi-cation of weld quality for replacements.
14 '2-390F Rocker Arms and Pushrods:
Hiscellaneous Bolts and Drive Studs a.
Perform a magnetic particle test on the thread root area of all engine 1A capscrews for linear indications, 14a. Rocker arm hold down capscrews for 1A were subjected to a thread root magnetic particle test with no relevant indications noted'.
Verify proper torque loads are applied to the rocker arm capscrews by either reviewing existing documentation or performing a physical inspection.
This is to be performed on both engines.
14b. For both engines, rocker arm capscrews torqued during reassembly to 365 Ib-ft nominal per approved site procedures.
A 50-50 oil and powdered graphite mixture applied to threads.
15.
02-688A 4 02-630A B
4 C En ine and Auxiliar Module Wirin Material and Fittin s a,
Perform an evaluation to replace or add missing conduit supports as required.
15a.
Two supports for flexible conduct installed on both 1A and 1B, Two supports for rigid conduct installed on 1A, b.
Tighten/fix conduit supports, Ensure recommendations based upon the evaluation of 15.a have been completed satisfactorily.
15b. All conduit supports properly installed and tightened, 16'2-425A En ine Driven Jacket Water Pump a.
Perform a visual inspection of the pump shaft for signs of excessive galling, wear, or scoring.
Document any questionable items with photographs (Engine 1A only).
- 16a, Inspections were performed and show no signs of abnormal or excessive wear or galling, (4017ATTACH/vaw )
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Page 8 of 8 Nomenclature/Group Parts List Status 16, 02-425A En ine Driven Jacket Water Pump (Cont'd) b, Perform a visual inspection of the pump driven gears for signs of pitting or galling.
Document any questionable items with photographs (Engine IA only) ~
16b. Inspections were performed and showed no signs of abnormal or excessive wear or galling.
c.
Perform a liquid penetrant test on the gear teeth and transition area (gear to shaft)
(Engine lA only) ~
16c.
A penetrant test was performed and revealed no relevant indications on gear teeth or transition area.
d.
Perform a visual inspection on the wear ring for evidence of galling or excessive war (Engine IA only) ~
16d ~ Inspections were performed and showed no signs:of abnormal or excessive wear or galling.
(4017ATTACH/vaw)