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VIROINIA ELECTRIC AND POWER CO MPANY Hzcamown.VanorarA 20261
VIROINIA ELECTRIC AND POWER CO MPANY Hzcamown.VanorarA 20261
                         .                          April 14, 1980
                         .                          April 14, 1980 7
_
   .                                                                                                C.      7C Mr. James P. O'Reilly, Director                                    Serial No. 339              '7 Office of Inspection and F.nforcement                            P0/RMT:baw        $      -
7
U. S. Nuclear Regulatory Commission                              Docket No. 5 0.-3,39 Region II                                                        Permit No. CPPR-78 101 Marietta Street, Suite 3100                                                      -
                                                                                                      .        .
   .                                                                                                C.      7C Mr. James P. O'Reilly, Director                                    Serial No. 339              '7
                                                                                                              -
Office of Inspection and F.nforcement                            P0/RMT:baw        $      -
* U. S. Nuclear Regulatory Commission                              Docket No. 5 0.-3,39 Region II                                                        Permit No. CPPR-78 101 Marietta Street, Suite 3100                                                      -
Atlanta, Georgia 30303
Atlanta, Georgia 30303


==Dear Mr. O'Reilly:==
==Dear Mr. O'Reilly:==


                                                                                                                    ;
Pursuant to the provisions of 10CFR50.55(e) the NRC Region II was notified on March 14, 1980, that the shaft fans for bcth Unit 2 auxiliary feedvater pump motors had been installed improperly and that the condition could have led to possible motor failure due to excessive motor and motor bearing temperatures during pump operation. The incorrect fan installation was discovered while disassembling auxiliary feedwater pump motor 2-F4-P-3B as a result of high bearing temperatures observed during initial motor tents.
Pursuant to the provisions of 10CFR50.55(e) the NRC Region II was notified on March 14, 1980, that the shaft fans for bcth Unit 2 auxiliary feedvater pump motors had been installed improperly and that the condition could have led to possible motor failure due to excessive motor and motor bearing temperatures during pump operation. The incorrect fan installation was discovered while disassembling auxiliary feedwater pump motor 2-F4-P-3B as a result of high bearing temperatures observed during initial motor tents.
Both pump motors were taken to att outside electrical equipment company where they were repaired by interchanging the inboard and outboard shaft drive fans thereby situating them in their correct location. The motor-driven auxiliary feedwater pumps have since undergone extensive testing during which acceptable pump data was obtained.
Both pump motors were taken to att outside electrical equipment company where they were repaired by interchanging the inboard and outboard shaft drive fans thereby situating them in their correct location. The motor-driven auxiliary feedwater pumps have since undergone extensive testing during which acceptable pump data was obtained.
             'Ihis constitutes our final report on this matter.            Should you require further information, please contact this office.
             'Ihis constitutes our final report on this matter.            Should you require further information, please contact this office.
Very truly yours,
Very truly yours, B . R. ylvia Manager-Nuclear Operations
* B . R. ylvia Manager-Nuclear Operations
                                                                     ,        and Maintenance ec:      Mr. Victor Stello, Director Office of Inspection and Enforcement                      -
                                                                     ,        and Maintenance ec:      Mr. Victor Stello, Director Office of Inspection and Enforcement                      -
                                                                                  -
Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation            .                              O/f
Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation            .                              O/f
                                     .                                                                SS
                                     .                                                                SS
                                                                             ~
                                                                             ~
                                                                                                       /[O
                                                                                                       /[O 8004280
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8004280
                                                                                        *
                                                                                               ,              4 72 CFFICLE 60PY
                                                                                               ,              4 72 CFFICLE 60PY
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Latest revision as of 20:25, 21 February 2020

Final Deficiency Rept Re Improper Installation of Auxiliary Feedwater Pump Motor Shaft Fans.Both Pump Motors Repaired by Interchanging Inboard & Outboard Shaft Drive Fans & Undergoing Extensive Testing
ML19309F086
Person / Time
Site: North Anna Dominion icon.png
Issue date: 04/14/1980
From: Sylvia B
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
References
339, NUDOCS 8004280472
Download: ML19309F086 (1)
v • d • e


Text

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VIROINIA ELECTRIC AND POWER CO MPANY Hzcamown.VanorarA 20261

. April 14, 1980 7

. C. 7C Mr. James P. O'Reilly, Director Serial No. 339 '7 Office of Inspection and F.nforcement P0/RMT:baw $ -

U. S. Nuclear Regulatory Commission Docket No. 5 0.-3,39 Region II Permit No. CPPR-78 101 Marietta Street, Suite 3100 -

Atlanta, Georgia 30303

Dear Mr. O'Reilly:

Pursuant to the provisions of 10CFR50.55(e) the NRC Region II was notified on March 14, 1980, that the shaft fans for bcth Unit 2 auxiliary feedvater pump motors had been installed improperly and that the condition could have led to possible motor failure due to excessive motor and motor bearing temperatures during pump operation. The incorrect fan installation was discovered while disassembling auxiliary feedwater pump motor 2-F4-P-3B as a result of high bearing temperatures observed during initial motor tents.

Both pump motors were taken to att outside electrical equipment company where they were repaired by interchanging the inboard and outboard shaft drive fans thereby situating them in their correct location. The motor-driven auxiliary feedwater pumps have since undergone extensive testing during which acceptable pump data was obtained.

'Ihis constitutes our final report on this matter. Should you require further information, please contact this office.

Very truly yours, B . R. ylvia Manager-Nuclear Operations

, and Maintenance ec: Mr. Victor Stello, Director Office of Inspection and Enforcement -

Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation . O/f

. SS

~

/[O 8004280

, 4 72 CFFICLE 60PY

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

.- f

_

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