ML20214E312

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Intervenor Exhibit I-ROREM-1,consisting of Mar 1983 Memo Forwarding 800304 Trend Analysis Rept of Unit Concept Insp Repts at Braidwood Station, to Be Used at Training Class Conducted by M Kast
ML20214E312
Person / Time
Site: Braidwood  
Issue date: 05/07/1986
From: Corcoran T
COMSTOCK ENGINEERING, INC.
To: Kast M, Saklak R
COMSTOCK ENGINEERING, INC.
References
83-03-28-01, 83-3-28-1, OL-I-ROREM-001, OL-I-ROREM-1, NUDOCS 8705220032
Download: ML20214E312 (5)
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Attached Trend Analysis Marked

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Control No: 83-03-28-01 Provide copies of this report and give them out at a t rain ing cl --

to be conducted by Mike Kast.

Go over each topic, address our requirements and fiel! q :. -t t e the Inspectors.

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March 4, 193:

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Trend Analysis Report of d

Unit Concept Inspection Reports at Braidwood Station

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'.ig* h A review was conducted of all Unit Concept Inspection Reports (UCI) 12:ued at Braidwood Station during the period of September 17. 1982 to January 21. l '.- c to t:

1%. i N " identified potential deficiencies. Concurrent with the aforementioned cetivity a iv r.g of all corresponding contractor responses to the UCI reports was perfor vd -

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g any deficiency which should be considered as incomplete construction.

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[.l The aspects and quantities utilized in this analysis are identified en sttach-n: I

  • of this report. The analysis indicated the existence of commen type de:1c p.
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following areas:

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  • 1.

The installation of electrical conduit has a high occurrence of.-.1.:::

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mislabeled segregation code markers and loose or missing grounli:

2 :e; 541 items reviewed. 82 items were found deficient (13.2%).

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The installation of electrical concrete expansion ancho s (CEA s. ) nas u significant number of loose missing or improperly abandaned CEts C

CEA's inspected. 199 were found deficient (14.3%).

3.

The installation and inspection of welds or electrical equipment. certi cil.

pans and hangers has a high occurrence of missing welder and Cual!

inspector stamps and defective or missing welds. 01 781 weid: in;

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I welds were found deficient (19.8%).

4.

The installation of HVAC duct has a significant number of Icese :: misti boite on duct. improper fit-up or configuration of duct hangers, and dsfective -elding on hangers and auxiliary support steel. Of 2380 items reviewed. MO itc -- -ere found deficient (10.9%).

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The installation of mechanical components has a high occurrence ci le /.

b missing nuts, bolts or compcnents. A review of 1606 items identified 2G5 i t e.ac as being deficient (12.8%).

The analysis also indicated that UCI deficiencies in all other areas appeared to 62 of a candom nature and are presently being resolved utilizing currently establishe.

construction procedures. These deficiencies are being followed-up and closed-out u: de r

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the presently established Braidwood Quality Assurance Depactment Unit Concept Intr tir:

program.

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Trend Analysis Report of i

2 Unit Concept Inspection Report 3

at Braidwood Station NF.

It should be noted that a small number of UCI deficiencies wete in aren wn:ch ora unique to a particular system oc space in the station and were not considet..; ar; 1 '. : L 1 -

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to this analysis. Additionally, the actual period of const ruction was not considered in

?, 7 this analysis as it does not effect the as-built condition of the statien.

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The following actions have been and/or are being taken relative tc the c'.0: m - 1 :' -:

common type deficiencies:

h Items No. I and No. 2 were identified as genetic deficiencies in the sit.. 2...

g letter BRD #8152 dated Febcuacy 23. 1983 to L.

K. Comstock. A c:.:ecti - act :

hd response is due on Match 8.

1983.

Item No. 4 was identified as a genecie deficiency in the sito Q..

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  1. 7949 dated January 20. 1983. A Pullman Construction respance da F..

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f 1 6 stated that the deficiencies peeviously identitied by th.

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h should be considered as incomplete construction and will be tv-!-

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2 repaired. However on January 26. 1983. Braidwood Project Cons t t :.. t ics.

f Department identified this same genecie deficiency to the Nuclea:

Jul; commission as a possible 50.55e.

Presently, a ecmplete revicw of 21. i.-

welding and configuration is underway.

Item No. 5 was identified as a generic deficiency in the site Q.-

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  1. 7949 dated January 20. 1983.

A Ph11t* m Q tschow resp:nse c;t.

c:. a 1983 stated. in pact, that although the installation phase of tt' i r..:pec t -;

Yl f piping systems were basically complete, the flushing phase eni t-

..; po were in progress. This means that permanent flow orifice. 4:

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el temporary st rainers and drain connections are installed.

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conditions. one would expect to find a high percentage of Icc:e cc:.n -- 1 ;:.c.

The status of this tempocacy work changes daily in order te fellcw

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.u :.ing programs requirement. The final installation of the peccanent
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m is being tracked and contcolled under the Equipment Installation Reco d (EIR) retrofit program. This item is not a generic type deficiency.

Item No. 3 had not previously been identified as a potential genecic d

deficiency. A review of the 155 identified defielencies verif te t b

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deficiencies involved welds missing Q.C.

inspectoc stamps 7 deficiencle; involved welds missing Q.C. inspector and welder stamps. 17 deficienciec identified defective welds and 1 deficiency was a missing wel.1 L...

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QC-US-1.

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-12. -14. and -17 for details).

In conclusion, this analysis of the UCI reports and associated centtactor respences identified four (4) adverse trends which exist as a result of current Braidwcod contractor's construcion practices. One (1) generic problem is presently being resclved, two (2) genetic problems are pending a review and acceptance of the involved contractor responses and one (1) is outlined in this report.

(0566A) 00012550

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Trend Analysis Report of E1:e 3 2..'

Unit Concept Inspection Report

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at Braidwood Station rs L. K. Coastock is requested to review Item No. 3 to determine if the identif:

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should be considered as incomplete construction.

If the deficiency is found to bc d-f.innature.

it is to be addressed by L. K. Comstock in a response addressed to site

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~ March 21. 1983. The response should describe the action taken to correct the deficiency.

3 the action to prevent recurrence, of the deficiency, and the anticipated date of

. jp completion. This response shoul'd be addressed to T. R. Sommecfield. Q.A. Ecperint-

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L. Martin Senior Q. A.

In pectoc Braidwood Stat 10t; ELM /mjv (0566A) cc:

W. J. Shewski/J. S. Bitel T. R. Sommerfield E. L. Martin M. Wallace R. Cosato F. Rolan - L.K.C. Project Manager Q. A.

File 53.18 00012551 e

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b ATTACMMENT A Trend Analysis of UCI Reports at Braidwood Station (9-17-82 to 1-21-83)

Total Items Total Deficienciec*

Inspected Identifted NL c a*

UCI Area of Inspection

_on UCI's en Uci c

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Installation of Elec. Equipment 1019 72

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Installation of Elec. Conduit 541 82 Installation of Elec. Cable Pans 83 5

Installation of Elec. Mangers 1055 t

Installation of Elec. CEA's 1387 15 Welding on Elec. Items 781 155 Installation of Structural Steel 191 6

Installation of Structural concrete 60022 S.F.

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Installation of Block Wall 4792 S.F.

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Installation of Structural CEA's 402 4

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Installation of HVAC Duct 378 4:

1-Installation of HVAC Hangers 50 22 Welding on HVAC Item 1952 19-Installation of Mech. Components 1606 2 C '.

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Installation of Mech. CEA's 112 1

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Installation of Large Bore Pipe 530 C

Installation of Small Bore Pipe 99 C

Installation of Instrument Pipe 69 2

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Installation of Mech. Pipe Hangers 92 1

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Total Items 10347 91; 9.t Total Square Feet 64814 R;

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  • This total member of deficiencies represents items which are net in accettance wl.

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presently approved design documents. This total does not include items identified 2-_

" incomplete construction."

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3-4-83 (0566A)

B5 00012552

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