ML19324B835

Provides Schedules Established for Completion of Eight long-term Corrective Actions Initiated by Util in Response to 890913 Event at Plant in Which Reactor Protection Sys Provided Abnormal delta-T Power Indications

ML19324B835
Person / Time
Site:	Fort Calhoun
Issue date:	10/31/1989
From:	Morris K OMAHA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LIC-89-991, NUDOCS 8911080360
Download: ML19324B835 (2)

Text

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f Omaha Public Power District 1623 Harney Omaha, Nebraska 68102 2247 I October 31, 1989 402/536 4000 LIC-89-991-U. S. Nuclear Regulatory Commission .,

Attn: Document Control Desk 4 i

Mail Station PI-137 i Washington, DC 20555

References:

1. Docket No. 50-285

2. Letter OPPD (K. J. Morris) to NRC (Document Control Desk) dated October 4, 1989 (LIC-89-888)

3. Letter NRC (J. L. Milhoan) to OPPD (K. J. Morris) dated October 20, 1989 Gentlemen:

SUBJECT:

Delta-T Power Anomaly Event - Long Term Corrective Actions This letter provides the schedules established for completion of eight long term corrective actions initiated by 0 PPD in response to an event at Fort Calhoun Station in which the Reactor Protective System (RPS) provided abnormal delta-T power indications. This event, which occurred on September 13, 1989, is detailed in Reference 2, and was further discussed at an OPPD/NRC conference held October 5,1989, in Arlington, Texas. Reference 2 described preliminary corrective actions and indicated that additional corrective action was being i considered. Subsequently, eight long term corrective actions were identified I by OPPD and presented to the NRC at the October 5, 1989 conference.

The following schedule has been established for OPPD's long term corrective

actions

a ' Revise procedures on senior plant management notification - December l 31, 1989 m Evaluate the schedule on Alarm Procedures Upgrade - November 30, 1989 a Review procedures to clarify on-shift responsibilities - December 31, 1989 m Implement Technical Specif'. cation Interpretation procedure - January 15, 1990 l e Investigate proceduralizing actions for future operability determinations - April 30, 1990 m Improve the screening process for industry information - December 15, 1989 gjlog>OCK360 e91032 ' N l S 050002e5 ' *

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. ' U. S. Nuclear Regulatory Commission LIC-89491 Page 2 e Review Technical Specifications for actions needing time clarification

- February 15, 1990 m Review our investigative procedures to lower the threshold for initiating investigation - December 15, 1989 If you should have any questions on these schedules or the corrective actions initiated by 0 PPD, please contact me.

Sincerely,

/K.  ?!Y

. Morris Division Manager Nuclear Operations KJM/pje c: LeBoeuf, Lamb, Leibv & MacRae R. D. Martin, NRC Regionel Administrator A. Bournia, NRC Project Manager P. H. Harrell, NRC Senior Resioent Inspector .