ML20138N937

Forwards Draft Trip Rept of 851211 & 12 Visit to Facility to Audit Walkdown of Cable Trays

ML20138N937
Person / Time
Site:	Comanche Peak
Issue date:	12/18/1985
From:	Landers D TELEDYNE ENGINEERING SERVICES
To:	Noonan V NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM)
References
6410-30, NUDOCS 8512240214
Download: ML20138N937 (7)

Text

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g ENGNEERING SERVICES 130 SECOND AVENUE -

WALTHAM, MASSACHUSETTS 02254 (617)890-3350 TWX(7101324-7508 December 18, 1985 6410-30 i

~

Mr..Vince Noonan, Project Director Comanche Peak Project U.-S. Nuclear Regulatory Commission 0ffice of Nuclear Reactor Regulation m

. Division of Licensing Mail Stop P-234 Washington. D. C.

20555

Dear Mr.'Noonan:

' Attached please find our preliminary Trip Report for our visit to Comanche Peak Steam Electric Station on December 11 and 12,1985, to audit the walkdown of the Unit 2 cable trays.

If you have any questions please do not hesitate to contact me.

Very truly yours, TELEDYNE ENGINEERING SERVICES h7L4a Donald F. Landers Executive Vice President DFL/lh

. Attachment.(TripReportNo.2192) cc:.L.Shao(USNRC) e C.'Trammell USNRC)

C. Poslusny USRNC)

D. Jeng (USNRC) 6410 File (TES) k DC PDR ENGINEERS AND METALLURGISTS L__-_______.

f "WTF1 mYNE l

ENGINEERING SERVICES TRIP REPORT 2192 VIST TO C0fiAflCHE PEAK STEAM ELECTRIC STATION DECEMBER 11 - 12, 1985 The purpose of this trip was to audit the walkdown of the unit 2 cable trays which is being performed by TUCGO. A kickoff meeting was held with TUCG0 on December 11. Those in attendance are shown in attachment 1. TUCG0 distributed their current procedures which apply to the unit 2 walkdowns. They briefly explained the' process for unit 2 and the differences between unit 1 and unit 2. A flow chart for unit 2 is shown in attachment 2.. The major difference is that in unit 1 the QC inspector and the

' engineer perform I walkdown together but in unit 2 there is two seperate walkdowns done. One by the engineer before design verification and one by the QC inspetor after design verification. Twenty one supports were chosen for the walkdown.

The following is a list of the supports walked down:

Reactor Building Safegards Building CTH-2-11929 CTH-2-10264 CTH-2-11516 CTH-2-10420 CTH-2-10059 CTH-2-11068 i

CTH-2-11592 CTH 7137 CTH 9774 CTH-2-11391 CTH-2-10119 CTH-2-10101 Diesel Generator Building CTH-2-11529 CTH 9850 CTH-2-11570 CTH 9866 CTH 9977 CTH 98i5 CTH 9901 CTH 9926 CTH 9947 We split into three teams of two each with a level III inspector and a craft person supplied by TUCGO. The teams were:

Team # 1 Team # 2 Team # 3 Eric Solla R. Lipinski Vic Ferrarini Terry Langowski Jim Dale Chuck Richards Jimmie Duncan William Kattness Denis Mercier (Level III)

A copy of the as-built drawing and procedure was used for the walkdown. Each support was walked down by one of the teams using tolerances given in the TUCG0 procedures. Each time a discrepancy was found the level III inspector would confirm the discrepancy.

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TE WE ENGNEERING SEWICES The following is a list of the supports walked down and.the problems encountered:

Reactor Building 1.

CTH-2-11929:

No Comments.

2.

CTH-2-11516: No Comnents.

3.

CTH-2-10059:

No Comments.

4 CTH-2-11592:

No Comnents.

5.

CTH 9774:

(a) Missing location of plate on channel in elev..B-8.

(b) Missing location of tray clamp plate on channel.

6.

CTH-2-10119:

(a) Gago on bolt #1 measures 1-3/16",

given 1", tolerance 1/8".

7.

CTH-2-10101:

No Comments.

8.

CTH-2-11529: No Comments.

9.

CTH-2-11570:

(a) 1/16" gap between vertical supporting angle and concreto over approx. 25%

length of the angle.

(b) Elevation of tne tray supporting channel l'-6" off. Measurnd 848'-1/2" vs R46'-6" on the drawing.

(c) Hilti bolt projoction marked on drawing 2-3/4" vs 2-1/4" neasured.

Safegards Building

10. CTH-2-10264:

(a) Plat < of CTH-2-10263 misplaced by 1-3/4" (neighboring support ). This results in 3-1/4" off the location shown on the dw3. (See soct. B-B)

' 11. CTH-2-10420:

(al Location of plate below the CTH support of f by 1-3/8" (moasures 6-3/4" vs 4-3/8" on tne dug)

12. CTH-2-Il068:

No Comments.

13. CTH 7137:

(a) Neighboring CTH nislabled. Heat no.

(288796) listed instead of CTH no.

(27136).

14. CTH-2-11391:

No Comments.

y TE WE ENGNEERING SERVICES Diesel Generator Building

15. -CTH 9850:

(a) Drawing "U" dim for bolt location from bot of clamp to bolt centerline. Draw shows 1-5/16", actual 1-7/8",

tolerance 1/2".

16. CTH 9866:

No Comments.

17. CTH 9977:

No Comments.

18. CTH 9825:

(a) Drawing shows span dim to support 9822 3'-0". Actual dim is 5'-5".

19. CTH 9901:

No Comnents.

~ 20. CTH 9926:

No comments.

21. CTH 9947:

No Comments.

'On Thursday December 12 an exit meeting was hold in which the findings wore presented. Ihe people present are snown in attachment 3.

a 4

Eric A Soila cc TRIP REPORT FILE 6410 File (TES)

J. A. Flaherty(TES)(TES)

D. F. Landers R.D.Clatto(TES) e e

7. :..

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V Tri mVNE ENGINEERING SERVICES Kickoff Meeting December 11, 1985 Name Organization Terry Langowski NRC/TRT Eric Solla NRC/TES Jim Dale NRC/RN

'Romuald E. _ Lipinski

.NRC/TRT Charlie M. Trammell NRC

-David Jeng NRC Tom Westerman ~

NRC/RIV

~ Terry G Tyler -

TUCG0/CPRT W. G. Counsil TUCG0 J.:F. Streeter TUCG0 H. A. Harrison TUCG0

0. B. Jones TUCG0 J. T. Merritt TUCGO C. R. Hooton TUCG0 C. D. Richards NRC/TRT Curtis H. Biggs TUCG0 Jimmie Duncan-TUCG0 William A Kattness TUCG0 Denis Mercier TUCGO' J. D. Hicks TUCG0 P. E. Halstead TUCG0 V. P. Ferrarini NRC/TRT

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- ENGNEERING SERVICES y

hJ, Exit Meeting December 12, 1985 4

N Name:

Organization Terry Langowski' NRC/TRT.-

Eric Solla-NRC/TES Jim-Dale _

NRC/RN

Romuald E. Lipinski NRC/TRT Charlte M.-Trammel 1~

NRC

' David Jeng NRC Tom Westerman NRC/RIV.

W. G. Counsil TUCG0

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J. F. Streeter TUCG0 H. A. Harrison TUCG0

0. B. Jones TUCG0 J. T. Merritt T'ICG0 C. R. Hooton TUCG0

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C. D. Richards MC/TRT Curtis H. 8iggs TUCG0 Jimmie Duncan TUCG0 William A Kattness TUCG0 J. D. Hicks TUCGO P. E..Halstead TUCG0

.V. P.. Ferrarini NRC/TRT R. E. Camp TUCG0/IMPELL Edgar J. Hee

-RLCA/TUCG0 L. M. Popplewell TUCG0 l

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