ML19209C576: Difference between revisions

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=Text=
=Text=
{{#Wiki_filter:.t..4, , . ..BOSTON EDISON COMJANY
{{#Wiki_filter:.  .t   .
.GENERAL OFFICES B00 BOYLSTON STREET
4, , . .
**BOSTON M ASSACNUSETTE O2199 G. CARL ANDOGNINI SU PERINTENDENT NUCLEAR OPERATIONS DEPARTMENT August 30, 1979 isEco. Ltr. #79- 174 Mr. Eldon J. Brunner, Chief Reactor Operations and Nuclear Support Branch Office of Inspection and Enforcement Region I U.S. Nuclear Regulatory Comission 631 Park Avenue
                              .
_King of Prussia, PA.
                    .                         BOSTON EDISON COMJANY GENERAL OFFICES B00 BOYLSTON STREET
19406 License No. DPR-35 Docket No. 50-293 Response to IE Inspection No. 79-11
                  *
* BOSTON M ASSACNUSETTE O2199 G. CARL ANDOGNINI SU PERINTENDENT NUCLEAR OPERATIONS DEPARTMENT August 30, 1979 isEco. Ltr. #79- 174 Mr. Eldon J. Brunner, Chief Reactor Operations and Nuclear Support Branch Office of Inspection and Enforcement Region I U.S. Nuclear Regulatory Comission 631 Park Avenue                                                                           _
King of Prussia, PA.         19406 License No. DPR-35 Docket No. 50-293 Response to IE Inspection No. 79-11


==Dear Sir:==
==Dear Sir:==
I&E Inspection Report No. 79-11, dated August 10, 1979, contained one item of non-compliance. Boston Edison Company's response to that item is presented as follows: Infraction Technical Specification (TS) Tr.ble 4.2.B requires a minimum calibration frequency of once per operatirg cycle for the Emergency Bus Voltage Relays.
 
TS 1.U defines the operating cycle interval pertaining to instrument and electrical surveillances as never to exceed 15 months...
I&E Inspection Report No. 79-11, dated August 10, 1979, contained one item of non-compliance. Boston Edison Company's response to that item is presented as follows:
TS Table 4.2.F requires a minimum calibration frequency of once per six months for surveil-lance instrumentation, including Drywell Pressure PI-5067A, Torus Pressure PI-5067b and Drywell/ Torus Differential Pressure PI-5021.
Infraction Technical Specification (TS) Tr.ble 4.2.B requires a minimum calibration frequency of once per operatirg cycle for the Emergency Bus Voltage Relays.
TS 1.U defines the operating cycle interval pertaining to instrument and electrical surveillances as never to exceed 15 months... TS Table 4.2.F requires a minimum calibration frequency of once per six months for surveil-lance instrumentation, including Drywell Pressure PI-5067A, Torus Pressure PI-5067b and Drywell/ Torus Differential Pressure PI-5021.
Contrary to the above, as of June 20, 1979, the above surveillance frequency requirements were not properly satisfied in that:
Contrary to the above, as of June 20, 1979, the above surveillance frequency requirements were not properly satisfied in that:
1.Emergency Bus Voltage Relays were last calibrated September 27, 1977, a period in excess of 15 months; and 2.PI-5067A, ''I-5067B and PI-5021 exceeded the minimum calibration frequency of once per six months.
: 1. Emergency Bus Voltage Relays were last calibrated September 27, 1977, a period in excess of 15 months; and
The above surveillance instru-ments were incorporated into TS Table 4.2.B by Amendment 31, effective June 21, 1978. The three pressure indicators had not been scheduled for calibration, nor had procedures, been written to
: 2. PI-5067A, ''I-5067B and PI-5021 exceeded the minimum calibration frequency of once per six months. The above surveillance instru-ments were incorporated into TS Table 4.2.B by Amendment 31, effective June 21, 1978. The three pressure indicators had not been scheduled for calibration, nor had procedures,* been written to       '
'detail the method of performing the calibration.
detail the method of performing the calibration.
*1147 022 7010100f(P'  
1147 022 7010100f(P'
',..r.. ..BOSTON EDISON COMPANY
 
~.Mr Eldon J. Brunner, Chief
      '
, August 30, 1979 Page 2 Response 1.Emergency Bus Voltage Relays were calibrated on June 29, 1979. 'Ihe scheduling of this relay testing on a 15 month basis has been re-emphasized to the electrical engineer and is presently on a 15 month cycle.2.As mentioned in the subject report, the pressure indicators were calibrated.
  ,.     .
To prevent a recurrence, Station Procedures have been revised to include the calibration of instruments PI-5067A, PI-5067B, and PI-5021. Also, the instruments have hen added to the calibration schedule.At the present time we are in compliance in this area.
r   .. ..
We believe this letter is responsive to your concerns.
BOSTON EDISON COMPANY
However, should you have any questions or concerns please contact us.
            .    ~
Very truly yours,.-7-..-1147 023}}
        ,
Mr Eldon J. Brunner, Chief August 30, 1979 Page 2
 
===Response===
: 1. Emergency Bus Voltage Relays were calibrated on June 29, 1979. 'Ihe scheduling of this relay testing on a 15 month basis has been re-emphasized to the electrical engineer and is presently on a 15 month cycle.
: 2. As mentioned in the subject report, the pressure indicators were calibrated.
To prevent a recurrence, Station Procedures have been revised to include the calibration of instruments PI-5067A, PI-5067B, and PI-5021. Also, the instruments have hen added to the calibration schedule.
At the present time we are in compliance in this area.
We believe this letter is responsive to your concerns.     However, should you have any questions or concerns please contact us.
Very truly yours,
                                                                                  . -
7
                                                                                                  -
                                                                                ..
                                                                              -
1147 023}}

Revision as of 13:32, 19 October 2019

Responds to NRC 790810 Ltr Re Violations Noted in IE Insp Rept 50-293/79-11.Corrective Actions:Emergency Bus Voltage Relays Calibr on 790629 & Station Procedures Revised
ML19209C576
Person / Time
Site: Pilgrim
Issue date: 08/30/1979
From: Andognini G
BOSTON EDISON CO.
To: Brunner E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19209C572 List:
References
NUDOCS 7910160168
Download: ML19209C576 (2)
v • d • e


Text

. .t .

4, , . .

.

. BOSTON EDISON COMJANY GENERAL OFFICES B00 BOYLSTON STREET

  • BOSTON M ASSACNUSETTE O2199 G. CARL ANDOGNINI SU PERINTENDENT NUCLEAR OPERATIONS DEPARTMENT August 30, 1979 isEco. Ltr. #79- 174 Mr. Eldon J. Brunner, Chief Reactor Operations and Nuclear Support Branch Office of Inspection and Enforcement Region I U.S. Nuclear Regulatory Comission 631 Park Avenue _

King of Prussia, PA. 19406 License No. DPR-35 Docket No. 50-293 Response to IE Inspection No. 79-11

Dear Sir:

I&E Inspection Report No. 79-11, dated August 10, 1979, contained one item of non-compliance. Boston Edison Company's response to that item is presented as follows:

Infraction Technical Specification (TS) Tr.ble 4.2.B requires a minimum calibration frequency of once per operatirg cycle for the Emergency Bus Voltage Relays.

TS 1.U defines the operating cycle interval pertaining to instrument and electrical surveillances as never to exceed 15 months... TS Table 4.2.F requires a minimum calibration frequency of once per six months for surveil-lance instrumentation, including Drywell Pressure PI-5067A, Torus Pressure PI-5067b and Drywell/ Torus Differential Pressure PI-5021.

Contrary to the above, as of June 20, 1979, the above surveillance frequency requirements were not properly satisfied in that:

1. Emergency Bus Voltage Relays were last calibrated September 27, 1977, a period in excess of 15 months; and
2. PI-5067A, I-5067B and PI-5021 exceeded the minimum calibration frequency of once per six months. The above surveillance instru-ments were incorporated into TS Table 4.2.B by Amendment 31, effective June 21, 1978. The three pressure indicators had not been scheduled for calibration, nor had procedures,* been written to '

detail the method of performing the calibration.

1147 022 7010100f(P'

'

,. .

r .. ..

BOSTON EDISON COMPANY

. ~

,

Mr Eldon J. Brunner, Chief August 30, 1979 Page 2

Response

1. Emergency Bus Voltage Relays were calibrated on June 29, 1979. 'Ihe scheduling of this relay testing on a 15 month basis has been re-emphasized to the electrical engineer and is presently on a 15 month cycle.
2. As mentioned in the subject report, the pressure indicators were calibrated.

To prevent a recurrence, Station Procedures have been revised to include the calibration of instruments PI-5067A, PI-5067B, and PI-5021. Also, the instruments have hen added to the calibration schedule.

At the present time we are in compliance in this area.

We believe this letter is responsive to your concerns. However, should you have any questions or concerns please contact us.

Very truly yours,

. -

7

-

..

-

1147 023

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