ML20236M383: Difference between revisions

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{{Adams
#REDIRECT [[TXX-6931, Interim Deficiency Rept CP-87-50 Re Abnormal Thrust Bearing Temps on Turbine Driven Auxiliary Feedwater Pump.Initially Reported on 870727.Evaluation Continuing.Next Rept Will Be Submitted by 880115]]
| number = ML20236M383
| issue date = 11/06/1987
| title = Interim Deficiency Rept CP-87-50 Re Abnormal Thrust Bearing Temps on Turbine Driven Auxiliary Feedwater Pump.Initially Reported on 870727.Evaluation Continuing.Next Rept Will Be Submitted by 880115
| author name = Counsil W, Woodlan D
| author affiliation = TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
| addressee name =
| addressee affiliation = NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
| docket = 05000445, 05000446
| license number =
| contact person =
| document report number = CP-87-50, TXX-6931, NUDOCS 8711130110
| document type = DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21), TEXT-SAFETY REPORT
| page count = 1
}}
 
=Text=
{{#Wiki_filter:,
F        -
Lo'g # TXX-6931 Fi1e # 10110
                                                    =      =                                                                910.4 RIELECTRIC                        Ref #10CFR50.55_(e)
                                                                                                                                                )
wimam c. omma                                                              November 6, 1987 l  '
aunene%,a l
U. S' Nuclear Regulatory Commission
        ' ATTN: Document Control Desk                                                                                                          1 Washington, D.C. 20555                                                                                                              l 1
 
==SUBJECT:==
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)                                                                                I DOCKET N05. 50-445 AND 50-446                                                                                            j TURBINE DRIVEN AUXILIARY FEEDWATER PUMP BEARING TEMPERATURE SDAR: CP-87-50 (INTERIM REPCRV)
Gentlemen:
On July 27, 1987, we verbally notified your Mr. H. S. Phillips of a deficiency.
involving abnormal thrust bearing temperatures on the turbine driven auxiliary feedwater pump. This is an interim report of a potentially reportable item under the provisions of 10CFR50.55(e). Our latest interim report on this                                                              ,
issue was logged TXX-6681, dated August 31, 1987.                                                                                  l During startup testing of the Unit 1 turbine driven auxiliary feedwater                                                  aump (cpl-AFAPID-01), an abnormally high temperature was identified for the t1 rust bearing. The pump manufacturer (Ingersoll-Rand), contacted to. assist in determining the cause of the condition, indicated that the temperatures were-not uncommon to the specific pump model (HMTA) and appear to be the result of                                                        ,
[          improper Installation and centering of the rotating element. Further, the vendor has indicated a technical bulletin is being prepared to provide more specific installation instructions in the pump manual that would eliminate misinterpretations of the installation requirements or design criteria.
We are continuing our evaluation of this issue and anticipate submitting our next report by January 15, 1988.                                                                                                    ,
Very truly yours, (d (9 W. G. Coun il
  '8711130110 871106 PDR  ADOCK 05000445.
g                  PDR-                                        By.  -
D. R. Woodlan Supervisor, Docket Licensing MCP/tgj c - Mr. R. D. Martin, Region IV Resident Inspectors, CPSES (3)                                                                                              f l                                                                                                                                        ' D
                                - M North Olise Street  LB BI Dallas, Tctas 7.ODI L.                '
_ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _        ___}}

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