ML20056G434

Informs That AIT Being Dispatched to Plant in Accordance W/ NRC Manual Chapter 0325.Forwards Final Charter to Evaluate Events Associated w/921016-17 Plant Loss of Annunciator Events

ML20056G434
Person / Time
Site:	Callaway
Issue date:	10/20/1992
From:	Forney W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Westberg R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20056G250	List: ML20056G249 ML20056G434
References
NUDOCS 9309030115
Download: ML20056G434 (5)

Text

. _ . ..._ .

,, .f' "'4 UstitED STATES '

, f ,, .

NUCLEAR CECULATO3Y COWAlisION

[ g REG 8085 til

.; j tes ecosev Lv acao .

",% /

E CLtes ELLY,s. $LLapects Get 37 OCT 2 01992 j MEMORANDUM FOR: R. A. Westberg, Team Leader Callaway. Augmented l Inspection Team (AIT)

FROM: W. L. Forney, Deputy Director, Division of Reactor Projects

SUBJECT:

AIT CHARTER-CALLAWAY LOSS OF ANNUNCIATOR EVENT An Augmented Inspection Team (AIT) is being dispatched to the Callaway plant in accordance with NRC Manual Chapter 0325. The AIT is being sent due to the  :

significance of the loss of all control room annunciators and the apparent l failure of the Itcensee to make appropriate notifications and emergency declarations on October 17, 1992.

Enclosed for your implementation is the final Charter to evaluate the events associated with the October 16 - 17, 1992 Callaway loss of annunciator events.

This Charter was prepared in accordance with the NRC Incident Investigation Manual and the April 18,199) Manual Chapter 0325 AIT implementing procedure.

The AITs objectives are to:

1) Conduct a timely, thorough, and systematic inspection related to this event.

2) Assess the safety significance of the event and communicate to Regional and Headquarters management the facts and safety concerns related to the event such that appropriate followup actions are taken.

3) Collect, analyze, and document factual information and evidence sufficient to determine the cause(s), conditions, and circu:: stances pertaining to the event.

If you have any questions regarding these objectives or the enclosed Charter, please do not hesitate to contact either Robert Greger or myself.

M ,M ihls William L. Terney, De u ter Division of Reactor Pro Enclosare: AIT Charter See Attached Distribution 930903011Q PDR ADOC %PDR$$kD3 S

s

1 o

', 2 Distribution cc w/ enclosure:

A. B. Davis, RIII C. J. Paperiello, RIII E. G. Greenman, RIII F. J. Niraglia, NRR J. G. Partlow, HRR J. W. Roe, NRR

8. X. Grimes, NRR J. N. Hannon, NRR D. F. Ross, AEOD J. A. Zwolinski, HRR G. E. Grant, EDO B. L. Bartlett, SRI L. R. Wharton, NRR t

r m>*

,co  ;

y e l Callaway less of Annunciators Auomented Insocction Team 3AIT) Charter i

You are to perfom an inspection of the October 16 - 17, 1992 annunciator events to include the following:

-. :- 1.

Determine that all imediate safety concerns associated with the loss of '

annunciator events have been addressed by the ifcensee.

- x 2.'

Detemine and validate the sequence of events associated with the loss of annunciators and plant computer, and the related power supply and fuse failures. (Pa annunciator losses.y )

particular attention to time durations of 3.

Detemine the root cause for the failures, including:

i w- - J

a. Annunciator pcwe'r , supply

b. Annunciator output power supply fuses

c. Annunciator logic power supply fuses In evaluating the root cause consider the relationship of the failures to possible troubleshooting or design weaknesses for both the safety-related and balance-of-plant (BOP) equipment.

4. '

Review the adequacy of the licensee's investigation of these specific events and the licensee's program for event analysis. Oversee troubleshooting, testing, and analysis of affected equipment.

35 5. -

Interview plant operators, ! & C personnel, and other plant staff directly involved in the events and troubleshooting, to evaluate:

a.

b. Operator actions, procedural guidance, tnd training Training and procedural guidance for other plant staff involved in the events or troubleshooting

c. Notifications to plant management and NRC

d. Recognition by the operators and plant staff of the extent of annunciators which were lost 6.

Evaluate licensee managerial performance related to this event, including:

a.

b. Initial shift supervision involvement (SRO, Shift Supv., STA, etc.) '

Subsequent plant management involvement (Plant Manager, EP Manager, etc.)

c. Onsite Review Comittee involvement S3 7. .

Evaluate completeness of licensee's 10 CFR 50.72 report.

8.

Determine whether appropriate work controls were implemented for the troubleshooting and repair activities.

i~

'?

9. Review the licensee's 1senediate and subsequent actions related to ry, emergency classification for these events. .

O I

l l

1 l

f

~

L - -

'f ENCLOSURE 4 PERSONS CONTACTED Union Electric Comoany D. F. Schnell, Senior Vice President, Nuclear G. L. Randolph, Vice President, Nuclear Operations W. R. Campbell, Manager, Callaway Plant R. J. Baker, Supervising Engineer, Computers H. A. Bauer, Planning and Scheduling L. S. Beaty, I&C Engineer H. D. Bono, Supervisor, Engineering M. B. Cleary, Supervisor, Corporate Communications M. L. DeYoun M. S. Evans,g, 1&C Technician Superintendent. Training J. M. Gloe, Supervising Engineer - Performance /ISI (Engineering Duty Supervisor - week of 10-15-92 to 10-23-92)

M. E. Heinzer, 53 (PM Shift Friday and Saturday)

E. W. Henson Jr., I&C Technician G. A. Hughes, Supervisor, Independent Safety Engineer Group W. O. Jessop, SS, Operator Training J. L. Keyes, R0 (OWL shift)

J. V. Laux, Manager, Quality Assurance A. G. Lord, I&C Engineer S. A. Maglio, Operating Supervisor M. L. McKee, I&C Technician P. W. Mory, SS (Day shift)

P. S. Myers, Engineer, Design Control C. D. Naslund, Manager, Nuclear Engineering R. J. Neil, SS (OWL shift)

C. L. Norris, 11C Technician G. W. Olmstead, STA (OWL shift)

W. C. O'Neil, I&C Technician A. C. Passwater, Manager, Licensing and Fuels J. R. Peevy, Manager, Operations Support L. E. Petty, I&C Technician C. S. Petzel, Quality Assurance Engineer M. A. Reidmeyer, Quality Assurance Engineer D. R. Smallwood. Senior Nuclear Clerk M. A. Stiller, Manager, Nuclear Safety and Emergency Preparedness W. A. Witt, Operating Supervisor SRO (DVL Shift 4 A. E. White, Supervisor, Emergency Preparedness)

D. Vice, J. E. Young, RO, AMSuperintendent shift Operations (Emergency Duty Officer EDO)

W. Gruer, RO, OWL shift R. Greathouse, RO, PM shift M. Jennings, STA/CRS, PM shift E. Stetrart, CRS, AM shift S. Aldrich, RO, PM shift T. P. Sharkey, Supervising Engineer - Site Licensing O

==

m