IA-86-793, Forwards Ofc of Investigations Rept of Inquiry Q2-85-021 Re Alleged Falsification of Preservice Piping Insp Records by Contractor.W/Nuclear Energy Svcs,Inc Calibr Data Sheets

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Forwards Ofc of Investigations Rept of Inquiry Q2-85-021 Re Alleged Falsification of Preservice Piping Insp Records by Contractor.W/Nuclear Energy Svcs,Inc Calibr Data Sheets
ML20237G467
Person / Time
Site: Harris, 05000000
Issue date: 09/22/1986
From: Vorse J
NRC OFFICE OF INVESTIGATIONS (OI)
To: Grace J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20237G421 List:
References
FOIA-86-596, FOIA-86-793 NUDOCS 8708140085
Download: ML20237G467 (34)


Text

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                         , .                                                                                                       po fA s>s28e0                                  UNITED STATES 9                                                                                        jf /f.U"U
                                  -           k,               NUCLEAR REGULATORY COMMISSION S

{ . OFFICE OF INVESTIGATIONS FIELD OFFICE REGION ll 7 / k'+, * * * * * ,o[p 101 MARIETTA STREET. SUITE 3100 ATLANTA. GEORGIA 30303

                                                                         ;SEPJ2.21986 e

MEMORANDUM FOR: J. Nelson Grace, Regional Administrator Region II FROM: James Y. Vorse, Director 8 Office of Investigations Field Office, Region II

SUBJECT:

SHEARON HARRIS NUCLEAR POWER PLANT -

    ' '-                                                       ALLEGED FALSIFICATION OF PRESERVICE PIPING INSPECTION RECORDS BY COtiTRACTOR (Q2-85-021)

Enclosed, for whatever action you deem appropriate, is the Office of Investigations Report of Inquiry concerning l the above matter.

Enclosure:

As Stated cc w/ enc 1: B. Uryc, RII:I/ACS E. Gilbert, OI:HQ 1 l l l l l 8708140033 e70811 IN b96 PDR

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                                                                                                      <rancu f ruit Rev/ Change No.             0//

issTurvest teTTTNcq Calibration ga,ur t( T'- /, Mfe/Model No.- u5t -VY scan Ancle? #/f" Mode luud Block No. Fabrication No. A>/4 S*ria! No.

  • A/22 co Fixturine (if anvit ,

Surface 60 Sev1a or Tvaa Nn. ? NMt /L A'd Block Temp o-w A6 Suseo Leneth - 5N " Comp . Temp 8 /r[F S h e 4 9h,aa - / /Icu o f, Suteo Delav - /', , J A. Thickness 3. a <' pulse tenerS /S-- Mc:F/ x Fr co.-cv - / o et //2 CRT Calibrated in Oc Pru Jha rc z Nn /ar'nd r ~ro v6 3 89 Freo.- / Rea. #3te?A/M Se-4 Each Maj. Screen Div= , cy ' ' Filter: All/4 Video :A'Mhekbg7 M*,=u-od anoia  %"' lc , e. t , r . .- . one narc v xt,' n ec /c;, r. e,id -

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                                                                                       %~ ELD / AREA               Yes         No       l Geom 30                     'il                  #                                           Ar/it       X \ N/p                ec,npla te %/ stor on ly                            l i-te-a. n v
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NUCLEAR ENERGY SERVICES. INC.

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                                                                                                    '4EI.2 / AREA Indien-ions Yes lNo                 l Geom l INCDMPLETED SCAN ( S',a f.2,.g c SO                    l  -M              i9        t , pc 2 ,, , y l g f ylg) (c                                          y gypc w f g ,,ge, n,                     l l 66                                                                      l geG's igyct             joa ,, 752cS ,w ' l 40                    I   -4                      A                                       l           l RE 4 dv"c3 T Erb 537'<'eT,I I /* T-20                   l +!:          i C

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Subject:

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                                                                                              ') . 0 Y           Sevie or Tvae No.                                                                               -                   A L P/4 A         Block Temp /f-F                '7 2.      i Sweco teneth
  • Comp. Temp ai 7F 6E' F 6.20 stme & shmaer l ~ dou.J d Sweeo Delav .

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EVALUATION STANDARD (PARA.)JLA 19/'!. 3

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                                                                                                  ; DATE                               3 ) 2 '*     ;

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                                                                               . _ _ _ _                _ _ _ _ _ _ _ _ _ _ _ _ _ _ _                     a

NUCLEAR ENERGY SERVICES, INC. A UNIT of THE PENN CENTAAL COAPOAATION February 27, 1985 Refer to: 5565-SRO-073 . Shearon Harris Nuclear Power Plant P. O. Box 165 Nsw Hill, NC 27562 Attention: T. W. Brombach Project Specialist

Subject:

Evaluation / Recommendations for Flaw In Weld 1-RC-2-FW-7

Reference:

1. Data Sheet No. IST-501-0444, Dated 1/19/85, Indication #1
2. Data Sheet Info Only, Alt. Technique, Dated 2/19/85

Dear Tom:

The purpose of this evaluation is to provide a final characterization, primarily a confirmed size for flaw indication noted in Reference 1 above. CONCLUSIONS

1. The flaw indication (Ref.1) does not exceed the dimensions of allowable flaw indications of IWB-3514-3. This flaw is less than fifty percent of the maximum allowable flaw size and therefore acceptable for service.
2. Flaw characterization provided by Ref. 1 is oversized on the thru-wall dimension by approximately a factor of two (2). ,
3. The " Flaw Indication Characterization / Evaluation Report Sheet",

provided in Ref. 1 shculd be superceded by a sheet based on the technique used in Ref. #2.

4. The flaw location and orientation repcirted in Ref #1 is confirmed.

The repor:ed flaw . indication length and as stated aboveSensitivity the j thru-wall dimension muso be re-established (3 above). compensation shows the length to be discontinuous or multi- l l faceced. f l DISCUSSION 1 1 The flaw indication reported in Ref. #1 was characterized by a j number of techniques. Some were ineffective as summarized following. 1 1 SOUTHERN REGIONAL OFFICE: P.O. BOX 1106, CARY, N.C. 27511 (919)467-8972

                                                                                                                                 .     ..__bs 5565-SRO-073 - page 2
a. Straight beam plots from both ID and OD surf aces confirmed the thru-wall location and length.
b. The dual search unit used in Ref. #2 is focused at the(see flaw a depth location and provides optimized sizing results discussion following).

C. Single element shear wave did not provide meaningful results.

d. Neither 50' L wave or 50' shear wave (5 MEZ) techniques provided l observable satellite pulses for sizing.

The flaw indication orientation is shown as curved, as with a weld bead interlay, in Ref. #1. This orientation is best re-presented by a side drilled hole (SDH) for demonstrating sizing technique accuracy. The flaw location, shape, and size approxi-mates the 3/16 SDH in calibration block UT-8 used during the I examinations. Figure 1(A) displays theFigure 3/16 SDH.with the observed 1(A) shows an size using the technique in Ref. #1. apparent thru-wall dimension of approximately 0.5 inch (2.7 times the 0.1875 actual). Figure 1(B) which represents the search unit and technique in Ref. #2 shows a measured thru-wall dimension approximating the actual 3/16 SDH size. RECOMMENDATIONS

1. That the report by Ref. #1 be supplemented with the characteri-zatica provided by Ref. #2. A new Flaw Indication characterize-tion / Evaluation Sheet be provided which reflects Ref. #2 results.
2. That the Flaw indication (Indication #1 Ref. 1) . be accepted for service w th provisions for monitoring for growth in accordance wi h D73-2420 (b) and (c). IWB-2420 requires re-examina:icn for the next 3 ISI periods. If the 3 re-examinations reveal essentially no change in flaw size, this weld examination wculd revert tc the normal schedule of successive inspecticas.

Very trul; yours, NUCLEAR ENERGY SERVICES

                                ~

s* w C. D. Cowfer, Director Southern Regional Operations CDC:hkj Attachments cc: P. Barry T. McMahon J. Hewett S. Pruitt S. Larson R. Saunders T. Lentz D. Murdock

       . _ _ .                                                              - - ~ - - - . _ - - . _ _ _ _ _ . _ _ _ _     _     _

Z 5 r @ /~ O +'+' y FLAW SIZING EVALUATZO10-TWO DUAL TECHNIQUES A'.- 45* DUAL L-1" x 1"~Dia". 1 MHZ

                                                                                                                                   ~J22162 J22163-
                                    >F           .M                                     D,-
                   ,                 1              i                                   .-
                                             /1                                         i FWD             BACKWARD W   MAX       50%      MAX         50%   MAX
                                                                    .                                 W   MP.       W1       MP-         W2    MP Depth              Depth             Depth 2.8 4.0        2.35     3 '. 4      3.35   5.1 a
    ' B. 45 DUAL L 3/8" x 3/4" 1.5 MHZ

{4 f C14487 FWD BACKWARD W MAX 50% MAX 50% MAX W MP W, MP -U ; MP 2.8 3.3 2.62 3.0 3.10 3.7 1 FIGURE 1

      .5565-SRO-073 - page 3 l

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