IR 05000289/1973013
| ML19256D501 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/25/1973 |
| From: | Folsom S, Heishman R, Narrow L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19256D498 | List: |
| References | |
| 50-289-73-13, NUDOCS 7910180823 | |
| Download: ML19256D501 (8) | |
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U. S. ATO:1IC D 1:bGY CO.":il.9510:
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DIRECT 03 ATE OF REGULAT01'Y OPEMTIO::S l
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S REG 10:1 I I
I R0 Innpection Report 100.:
50-289/73-13 gggget ;;g,;50-289 conn _40 Lice:nec:
Metropolitan Edison Company License I!o.:
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P.O. Box 542 Priorit):
Reading,Pennsy}vania19603 Category:
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Middletown, Pennsylvania (Three Mile Island 1)
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f Type of Licennec:
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' Type of Ins;'ection:
Routine, Unannounced
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Dates of Inspection: August 29-31, 1973
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July 23-25, 1973 Daten of Previous Inspection:
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Reporting Inspector:
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Seth A. Folsom, Reactor Inspector DAIL
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Accompanying Inspectors * /..
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St / m 9-2b2 3 J. II. Tillou, Senior Reactor Inspector, U'
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Facility Construction & Engineering Support Branch
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O i r Acco:..,s ny in:,. = r.r rsn el -
NONE
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R. F. Ileishman, Senior Reactor Inspector Facility Construction & Engineering Supprt Branch
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ST"?fARY OF FIMnINr,S e'3 Enforcement Action None Licensee Action on Previousiv Reported Enforcement Matters Not Inspected Unusual Occurrences None Design Changes None Other Sienificant Findings A.
Current Findings
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1.
The electrical ci Juit hangers were reported to have questionable seismic integrity.
The architect-engineer has submitted revised drawings.
This is an unresolved item. (Details, Paragraph 2)
2.
A meetPg was held at the site on Augus t 29, 1973, to discuss the displacement of tendon bearing plates during tendon tensioning.
Representatives of the Directorate of Licensing and the Directorate of Regulatorv Operations participated in the meeting.
The licensee stated that the initial displacement m.easurements were without significance because of inherent inaccuracies in the method of measurenent.
The architect-engineer agreed to submit to Licensing, by Septedber 10, 1973, an analysis and report of the tendon bearine plate displacenent to date.
This item is unresolved. (De tails,
Paragraph 3)
3.
The Building Sprav Pump Motors No. lA & IB were partially flooded dur:ng pre-operational flushing.
The extent of damage has not been fully determined.
This is an unresolved item.
(Details, Paragraph 5)
4.
Installation of the hydraulic seismic restraints was tot in accord with the vendor's ins tructions.
This is an unresolved item. (netails, Paragraph 9)
B.
Status of Previousiv Renorted Unresolved Iters 1.
A report on the containment bearing plate displacement is being prepared by the licensee, and will be submitted te Licensing by Sep tembe r 10, 1973.
This item renains unresolved.
(De tails, Paragraph 3)
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r3 The licensee stated that a report would be sent to Licensing
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by September 10, 1973 and would include an analysis f the displacenent measurements to date, and a proposed surveillance program.
(Details, Paragraph 3)
C.
The inspector stated that he had examined the purchase order information on the Nylon electrical cable ties, in addition to radiation resis tance information on the ties furnished b_v the architect-engineer.
No deficiencies had been identified.
The licensee acknowledged this information. (De tails, Paragraph 4)
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D.
The inspector requested information on the proposed repairs to Building Spray Pump motors No. lA & 1B, which had recently been partially submerged during flushing.
The licensee s tated that no final decision had been reached on repair work.
This
is an unresolved item. (Details, Paragraph 5)
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E.
The inspector stated that he had been informed of the change in the tendon sheathing filler material, but that the site
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procedures did not reflect this ch'ange.
The licensee s tated that all approvals for the change had been obtained, that the
new filler material was now being used, and that the new materul would be specified in the procedure.
This is an unresolved item. (Details, Paragraph 6)
P.
The inspector stated that he had observed the dredging operations
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at the river pump intake, and asked when this work would be completed.
The licensee stated that the dredging would be completed in Octobr r,1973 and that no further silting was expected. the present silt having been deposited during the river flooding in June, 1972.
This item is unresalved.
(Details, Paragraph 7)
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G.
The inspector stated that he had examined the 1300-cubic yard concrete placement during the inspection, from aggregate s torage to wet curing, and that no deficiencies had been identified.
The licensee acknowledged this information. (Details, Paragraph 8)
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The inspector stated that the hydraulic seismic restraint ins tal-lation had been examined, and had found that the vendor's ins tructions were being misinterpreted, and that the quality
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control. program appeared deficient.
The licensee s tated that the procedures for installation, and the recording of data would be changed prior to hot setting of the restraints.
This item is unresolved. (Details, Paragraph 9)
I.
The inspector stated that he had examined the electrical conduit supports which had been reported as having deficient seismic integrity, and asked for the s tatus of the revisions which would be recuired on the supports.
The licensee replied that r one of the revised drawings had been rece'ived, but that
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no revisions had been nade to the s':pports. Elis item is unresolved. (De tails, Paragraph 2)
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DETAILS
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1.
Persons Contacted reneral Public Utilities Service Corporation (GPUSC)
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Mr. B. G. Avers, Manager, Quality Assurance Mr. F. Bullock, Quality Assurance Engineer i
Mr. W. T. Gunn, Site Project Manager
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Mr. R. W. Heward, Jr. Proj ect Manager Mr. G. L. Kopp, Ouality Assurance Specialist
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Mr. S. Levin, Project Engineer, Unit 1 l-Mr. P. Levine, Quality Assurance Engineer Mr. R. H. Mason, Engineer
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Mr. R. E. Neidig, Jr., Assis tant Proj ect Engineer Mr. D. H. Reppert, Licensing Engineer Mr. M. J. Stromberg, Site Quality Assurance Auditor Mr. J. E. Wrigh t, Quality Assurance Site Mannger Mr. P. H. Wrigh t, Resident Engineer United Engineers and Constructors (UE&C)
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l Mr. J. Carrabbe, Cons truction Superintendent Mr. V. E. Cichocki, Quality Coordinating Superintendent Mr. H. Finlan, Mechanical Engineer
Mr. J. Gilley, Quality Assurance / Quality Control Coordinator Mr. R. L. Hawkins, Quality Assurance / Quality Control Coordinator
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Mr. F. F. Long, Quality Control Engineer I
Mr. N. A. Vitale, Assistant Quality Control Site Supervisor Mr. G. H. S chmidt, Piping Superintendent
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Gilbert Associates (CAI)
Mr. D. K. Croneberger, Engineer Mr. R. H. Fleming, Site Coordinator Mr. D. D. Krause, Engineer Mr. K. E. Nodland, Project Etgineer, Civil Mr. D. Tough, Engineer l
Pittsburch Ter ting Lab ora to ries (PTL)
Mr. J. F. Artuso, Testing Superintendent
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2.
Seisnic Supports for Electrical Conduits
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The licensee had reported that the seismic supports for electrical conduite had been found to be inadecuate, and had requested a re-
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engineering of the installation to correct the condition.
The inspector examined the support of electrical conduits and found that in many instances a number of large electrical conduits had been hung from electrical cable trays not designed for the additional load.
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The licensee s tated tL at drawings on some of the revised supports had been received at the time of the inspection, but th at the revisions had not yet been made.
This iti is unresolved.
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Bearing Plate Displacement A
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A program of measuring the displacement of containment tendon bearing
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plates during tendon tensioning had been conducted since the start of tensioning.
Several displacement; exceeded 0.100 inches, and one was 0.143 inches.
The inspector had questioned the validity of
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the tendon tensioning specification which pernitted a maximum of
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0.250 inches displacement.
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l During the inspection, on Augus t 29, a meeting was held at the
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jobsite to discuss bearing plate displacement.
In attendance were representatives of the licensee, the architect-engineer, and the AEC Directorates of Licensing and Regulatory Operations.
The licensee contended that the bearing plate displacement measure-ments were not mesningful because of inaccuracies in the measurement method.
A revised measurement meutod had resulted in significant reductic as in the measured displacement.
The licensee agreed to submit a report to Licensing by September 10
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covering an analysis of the bearing plate displacement measurements and c proposed surveillance program.
This item remains unresolved.
4.
Electrical Cabling Ties j
The Nylon ties used in tying scfeguards electrical cables to cable trays were supplied.by Thomas & Betts ; brand name Ty-Raps, i
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Type 24M.
The architect-engineer provided the following certification to Mr. P. Karish, GP4, on August 31,1973, "The specified Nylon Ty-rap is good for 860,000 Rads. We expect the 40-vear dose outside the secondary hield wall to be 10,000 Rads.
The re fore,
no problem is anticipa ed with the specified Ty-rap.
Signed by R. J. Zula, Gilbert Af sociates, Liaison Engineer."
5.
Buildina Sorav H'mp Motors Flooded Building Spray Pump Motors No. lA&lB (engineered safeguards system) were partially flooded on August 31, 1973 during pre-operation flushing of the sys tem.
The water was being dumped at a rate exceeding the capacity of the sump pumps.
The water rose to 6 inches above the motor base plates, and wetted the lower 50-60 degrees of the s tator.
The shaf t and bearings were not i
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Pr.eliminary meggering of the motor windings ind cated no wetting of the insulation.
The integral heater circuits were
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activated.
The need for further maintenance or repairs was still under s tudy at the time of the inspection. The licensee stated that it was intended that this item be considered reportable per 10 CFR 50.55(e).
This is an unresolved item.
6.
Filler Material Leakare from Tendon Sheathing 018
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A number of leaks of filler material from the exterior of the t )
containment had been found by the licensee. A program of m
periodic measurement of leakage at each leakage poiat had been initiated by the licensee. Addition of filler matarial to tendon sheathing (" greasing") was temporarily s topped.
Samples of the
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, filler material from one tendon (V-34), and from the tank car,
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were subject to chemical and physical analysis and were
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found to meet the purchase specifications.
Some separatien of the filler material into two (or threc)
fractiois in the tank car had occurred.
The vendor stated that th Ls separation was related to slow cooling of the material in the tank car during the period when addition of fiU er material was stopped.
The vendor of the filler mate _ial, Viscority Oil Company, recommended changing from Visconorus t 2090P-1 to Visconorus t 2090P-2.
The new material had a higher viscosity, and its use was approved by Inland-Ryerson and the architect-engineer.
At the time of the inspection the tendon str.tus was as follows:
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All vertical tendons installed, tensioned, and filled with Visconorust 2090P-1
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All dome tendons ins talled and tensioned, but none filled.
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All horizontal tendons ins talled, with 50 remaining to be tensioned.
A total of 10 tendons had been filled with Visconorus t 2090P-2.
The site directives had not been revised to specify the use of Visconorus t 2090P-2. The licensee s tated that it was htended
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that this item be considered reportable under 10 CFR 50.55(e).
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This is an unresolved item.
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Silting of River Pump Intake Dredging of silt f rom the river bottom adjacent to the river pump intake trea was continuing, and was expected to be complete early in October, 1973. Only finely-divided material had been encountered, This item remains unresolved.
8.
Concrete Placenent During the inspection a 1300-cubic yard concrete placement was pe rfo rmed.
The inspector examined the following during the placement:
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Aggregate storage and handling b.
Testing laboratory operations
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Batch plant operations, including icing d.
Concrete testing at truck discharge e.
Concrete pumping, dis tribution, and consolidation f.
Concrete wet curing 1451 019 No deficiencies were identifie, _ _.
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9. * Seisnic Res traints
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Hydraulic seismic restraincs were examined during the inspection.
They were all Grinnell Type 201, and most were installed, but
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had no* ' -en given final adjustment.
The vendor's installation
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instruus... attached to each restraint were not in agreement with the instructions planned by the piping superintendent.
A phens call confirmed the vendor's instructions, resulting in a change in the method of adjustment planned at the site.
The field procedure MCP-15, Rev. O, dated October ll,197? will be
revised tc L.21ude the correct method of installing the restraints.
Checksheets " Pipe Hanger Check-Of f" will be revised to list bo?S
the hot and cold settings.
This item is unresolved.
10. Thermal Shield Scratches
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l The documentation relating to scratches found in the reactor vessel internals thermal shield was examin'ed by the inspector.
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The evaluation of the location and depth of the scratches indicated that no repairs were necessary.
This item is resolved.
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11. Valve Wall Thickness Verification Program i
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The complete documentation packages for Valves RCV-20 and RCV-23 which were received at the site subsequent to the July 23-26, 1973 inspection were examined during this inspectbn.
Test report TS-2058 provided data on direct wall measurements of RCV-20, and report
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TS-2059 reported the measurements for RCV-23.
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The valv.e ws11 thickness verification program on Unit #1 has now been reviewet* by the inspector for all 65 valves in the reactor
coolant pressure boundary.
The evidence presented, together with the inspector's observatbas, indicate that these valves meet or exceed the ANSI B16.5 requirements.
This item is resolved.
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n et,, 4,..u,,, r,,1,.,.... r e +.:,. c. e _ TO U.a n 4 = c. 2 o r,it) , smilALS ALM A ~te.$ RO Chief, Field Suppc rt & Enf 1 r., HQ RO INSFECTION REPORT No. 50-2S9-73-13 RO:FQ (5) 0 Fil.s cATE METROPOLIT/.N EDISON CO.
1 Central Mail and Filc ..
s GC THREE MILE ISLiND 1 To (Na r e ar J wn 't) INT 6ALS AL"ARn3 Regulatory Stan'ardt (3) The attached report is being forwarded for inferration.
. . Directorate of Licens ing (13) ! Distribution to PDR, Local PDR, USIC, DTIE, and state RO Directors (4) cATE
i representatives will be made af ter go-i.etary revieu j , . TO treame ar :1 utt) INTIALS REMARKS - is complete by the licensee.
CATE FRO *yCy, den n ar d,gmt) REM.".e gs ('.(.L'c.eg/ w - ' t R. F. Heishman RO:I PHCNE NO.
DATE 251 9/25/73 t,5E OTHEft 5s' E FCR A;;ITeMaL REn4As gs g p,y g s -, g 3.
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