ML20134D538

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Forwards Request for Addl Info for Independent Assessment Program - Phase 4 Re Mechanical Sys.Expedited Transmittal or Notification of Impossibility of Providing Documents in Timely Manner Requested
ML20134D538
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 08/01/1985
From: Williams N
CYGNA ENERGY SERVICES
To: Beck J
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
References
84056.078, NUDOCS 8508190265
Download: ML20134D538 (3)


Text

.. _ _ _ _ _ _ _

I V,

_a 415 397-5600 101 Cahfornia Street, Suite 1000. San Francisco, CA 941115894 1985 Ag ,

S

Mr. J.W. Beck

! Manager-Licensing Texas Utilities Generating Company l

Skyway Tower l 400 North Olive Street l L.B. 81 l

Dallas, Texas 75201 l

l

Subject:

Request for Information - Mechanical Systems l Texas Utilities Generating Company Comanche Peak Steam Electric Station Independent Assessment Program-Phase 4 Job No. 84056

Dear Mr. Beck:

During the past month Cygna project personnel and the Senior Review Team have been performing reviews of the mechanical systems and eletrical/I&C checklists. As a result, we have found it necessary to request additional information from TUGC0 and Gibbs & Hill (G&H). One of these requests, dated June'27, 1985, is attached to this letter. G&H personnel informed us yesterday that these requests must be formally submitted. Although this is acceptable to Cygna, our concern is that one month passed before we were told that the documents would not be sent. These requests were' made to aid Cygna in preparing for the next PRC meeting.

Please expedite the transmittal of the attached documents or advise us if it will not be possible to provide these documents in a timely manner.

l, Very truly yours, Y.Y ' f. N d t5 &

N.H. Williams Project Manager cc: Mr. J. Redding (TUGCO)

Ms. J. van Amerongen (TUGC0/EBASCO)

Mr. W. Horin (Bishop, et al.)

Mr. D. Pigott (Orrick, Herrington & Sutcliffe)

Mr. S. Treby (USNRC)

Mr. S. Burwell -(USNRC)

Mrs. J. Ellis (CASE) l

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8508190265 850801

- i PDR ADOCK 05000445 ,  !!{

A PDR San Francisce e Boston Chicago Richland

- Communications i,.

4L mammmamma Report comp *"r o Teiecon oX conference Report Texas Utilities Joe No 84056 Comanche Peak Steam Electric Station oste Independent Assessment Program - Phase 4 6/27/85 T m' Gibbs & Hill /NY sw Data Needs from Gibbs & Hill (Mechanical)

Place

' Gibbs & Hill

Participants:

J. Irons Cygna J. Oszewski Required Action By item Comments Cygna requested that J. Irons provide us with the following data:

(1) Copy of 0EI-T183 on the rad monitor control function removal .

(2) Copy of the setpoint calculation and input data for HV 4572.

(3) Copy of the sizing calculation (s) relief and vent valves.

(4) Copy of Gibbs & Hill mechanical equipment separation criteria - specifically for instrument sensing lines.

(5) Input data / criteria for pump low pressure switch setpoint.

(6) Justification for values HV-4572 and 4574 being specified with an inlet pressure of 135 psig and a shutoff AP of 120 psi.

'l1C//Fuo0, ,

la36' 2 oistneution: N. niilliEms, J. Teddirig, J. Oszewski, S. Treby, J. Ellis, S. Burwell, Project File m ote l