ML20203F868

Forwards Request for Addl Info Re Util 970527 plant-specific Summary Rept in Response to USI A-46 Program at North Anna Power Station,Units 1 & 2

ML20203F868
Person / Time
Site:	North Anna
Issue date:	02/16/1999
From:	Kalyanam N NRC (Affiliation Not Assigned)
To:	Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
References
REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR TAC-M69462, TAC-M69463, NUDOCS 9902180331
Download: ML20203F868 (4)

Text

- -. . - . .- . . . . - .- - . -

-- *b ~ February 16, 1999 Mr. J. P. O'Hanlon Senior Vice President - Nuclear I Virginia Electric and Power Company 5000 Dominion Boulevard Glen Allen, VA 23060 i j

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION ON THE RESOLUTION OF  !

UNRESOLVED SAFETY ISSUE A-46, (USl A-46)- NORTH ANNA POWER STATION, UNITS 1 AND 2 (TAC NOS. M69462 AND M69463) l 4

Dear Mr. O'Hanlon:

i By letter dated May 27,1997, Virginia Electric and Power Company forwarded the plant-specific l summary report in response to the USl A-46 program at North Anna Power Station, Units 1 and l

2. The NRC technical staff has reviewed the report and determined that additional information is  !

necessary to complete the review of your USl A-46 program. l The enclosed request was discussed w!'h Mr. T. Shaub of your staff on February 3,1999. A mutually agreeable target date of June 1,1999, for your response was established. If l circumstances result in the need to revise the target date, please call me at the earliest  !

opportunity at (301)-4151480.

Sincerely, I Original signed. by:

N. Kalyanam, Project Manager Project Directorate 11-1 Division of Reactor Projects - 1/11 l Office of Nuclear Reactor Regulation j Docket Nos. 50-338 and 50-339 l i

Enclosure:

Request for Additional [ l Information  ;

I cc w/ encl: See next page DISTRIBUTION:

$ Docket File r OGC PUBLIC L. Plisco, R 11 ACRS J. Zwolinski G Galetti n gg WLE CETB '

FILENAME - G:\NOANNA\69462RAI.WPQ I OFFICE PM:PDll-2 i , LA:PDil-2 D:PDil-2 hA NAME NKalyanam @ EDunningtondM HBerkow DATE 1/9/99 a7/7/99 '74 7 /99 COPY 1vonnn h/No hNo YehIv

< 9902180331 990216 PDR ADOCK 05000338 P PDR g ,

~

! p ct:

p t UNITED STATES j

l l

g NUCLEAR REGULATORY COMMISSION o & WASHINGTON, D.C. 20N&0001

% February 16, 1999 l

Mr. J. P. O'Hanlon Senior Vice President - Nuclear Virginia Electric and Power Company 5000 Dominion Boulevard Glen Allen,VA 23060

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION ON THE RESOLUTION OF UNRESOLVED SAFETY ISSUE A-46,(USI A-46)- NORTH ANNA POWER STATION, UNITS 1 AND 2 (TAC NOS. M69462 AND M69463)

Dear Mr. O'Hanlon:

By letter dated May 27,1997, Virginia Electric and Power Company forwarded the plant-specific summary report in response to the USI A-46 program at North Anna Power Station, Units 1 and

2. The NRC technical staff has reviewed the report and determined that additional information is necessary to complete the review of your USl A-46 program.

The enclosed request was discussed with Mr. T. Shaub of your staff on February 3,1999. A mutually agreeable target date of June 1,1999, for your response was established. If circumstances result in the need to revise the target date, please call me at the earliest opportunity at (301)-4151480.

)

Sincerely, i l

N. Kalyanam, Project Mana9er l Project Directorato ll-2 l Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation Docket Nos. 50-338 and 50-339

Enclosure:

Request for Additional Information cc w/ enclosure:

See next page

Mr. J. P. O'Hanlon North Anna Power Station Virginia Electric & Power Company Units 1 and 2 cc:

Mr. J. Jeffrey Lunsford Regional Administrator, Region ll County Administrator U.S. Nuclear Regulatory Commission Louisa County Atlanta Federal Center l P.O. Box 160 61 Forsyth St., SW, Suite 23T85 Louisa, Virginia 23093 Atlanta, Georgia 30303 Mr. Donald P. Irwin, Esquire Mr. W. R. Matthews Hunton and Williams Site Vice President Riverfront Plaza, East Tower North Anna Power Station 951 E. Byrd Street P. O. Box 402 Richmond, Virginia 23219 Mineral, Virginia 23117 Dr. W. T. Lough Mr. R. C. Haag l Virginia State Corporation U.S. Nuclear Regulatory Commission Commission Atlanta Federal Center Division of Energy Regulation 61 Forsyth St., SW, Suite 23T85 P. O. Box 1197 Atlanta, Georgia 30303 Richmond, Virginia 23209 Mr. E. S. Grecheck Old Dominion Electric Cooperative Site Vice President 4201 Dominion Blvd. Surry Power Station Glen Allen, Virginia 23060 Virginia Electric and Power Company 5570 Hog Island Road Mr. J. H. McCarthy, Manager Surry, Virginia 23883 Nuclear Licensing & Operations Support Robert B. Strobe, M.D., M.P.H.

Virginia Electric and Power Company State Health Commissioner Innsbrook Technical Center Office of the Commissioner 5000 Dominion Blvd. Virginia Department of Health Glen Allen, Virginia 23060 P.O. Box 2448 Richmond, Virginia 23218 Office of the Attorney General Commonwealth of Virginia 900 East Main Street Richmond, Virginia 23219 Senior Resident inspector North Anna Power Station U.S. Nuclear Regulatory Commission 1024 Haley Drive Mineral, Virginia 23117

REQUEST FOR ADDITIONAL INFORMATION NORTH ANNA POWER STATION. UNITS 1 & 2 i DOCKET NUMBERS 50-338/339 The staff has completed its review of the Virginia Electric and Power Company's (the licensee) submittal dated May 27,1997, and requires additional information regarding operator actions specified in the report in order to make a safety determination.

a. Describe what reviews were performed to determine if any local operator actions required to safely shutdown the reactor (i.e., implement the Safe Shutdown Equipment List (SSEL))

could be affected by potentially adverse environmental conditions (such as loss of lighting, excessive heat or humidity, or in-plant barriers) resulting from the seismic event. Describe how staffing was evaluated and describe the reviews which were conducted to ensure operators had adequate time and resources to respond to such events.

b. As part of the licensee's review, were any main control room (MCR) structures which could impact the operator's ability to respond to the seismic event identified? Such items might include but are not limited to: MCR ceiling tiles, non-bolted cabinets, and non-restrained pieces of equipment (i.e., computer keyboards, monitors, stands, printers, etc.). Describe how each of these potential sources of interactions has been evaluated and describe the schedule for implementation of the final resolutions.

c. Describe what reviews were performed to determine if any local operator actions were required to reposition " bad actor relays." For any such activities describe how adverse  ;

environmental conditions (such as loss of lighting, excessive heat or humidity, or in-plant barriers) resulting from the seismic event were analyzed and dispositioned. Describe how staffing was evaluated and describe the reviews which were conducted to ensure operators had adequate time and resources to respond to such events,

d. Describe which of the operator actions associated with resetting SSEL equipment affected by postulated relay chatter are considered to be routine and consistent with the skill of the  ;

craft. If not considered skill of the craft, what training and operational aids were developed i to ensure the operators will perform the actions required to reset affected equipment?

et. Assume the alarms associated with " bad actor relays" are expected to annunciate during the seismic event. Do the operators have to respond to those annunciators and review the annunciator response procedures associated with them for potential action? How would those additional actions impact the operators' ability to implement the Normal, Abnormal, and Emergency Operating Procedures required to place the reactor in a safe shutdown condition?

f. To the extent that Normal, Abnormal, and Emergency Operating Procedures were modified to provide plant staff with additional guidance on mitigating the A-46 Seismic Event, describe what training was required and provided to the licensed operators, non-licensed operators, and other plant staff required to respond to such events.

Enclosure

. - -