ML16341E230

Accepts Listed Enhancements Described in Licensee as Adequate for Return to Facility mid-loop Operation During Current Refueling Outage,In Response to 870504 Request. Return to mid-loop Operation Anticipated on 870518

ML16341E230
Person / Time
Site:	Diablo Canyon
Issue date:	05/15/1987
From:	Holahan G Office of Nuclear Reactor Regulation
To:	Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8705270640
Download: ML16341E230 (2)

Text

flay 15, 1987 MEMORANDUM FOR:

Dennis F. Kirsch, Director Division of Reactor Safety and Projects Region V

FROM:

SUBJECT'ary M. Holahan, Assistant Director for Region III and V'Reactors Division of Reactor Projects - III/IV/V 8 Special Projects DIABLO CANYON 2 - RETURN TO MID-LOOP OPERATION This refers to your memorandum of May 4, 1987, which requested NRR review and concurrence that the actions described in PGIIE's letter of May 4, 1987, are appropriate and adequate for return,to mid-loop operation during the current refueling outage.

We have completed our review of the PGSE letter.

PGIIE outlines numerous enhance-ments now completed or to be completed prior to next mid-loop operation, as follows:

1.

Reactor vessel level indication improvements.

2.

Enhancements to procedures regarding timely containment closure.

3.

Improvements to Operating Procedure AP-16 and A-2:II.

4.

Improved clarity of instructions regarding emergency classifications.

5.

Additional emphasis on procedure compliance and crew training.

6.

Additional instrumentation, including at least two core exit thermocouples.

7.

Closes control of work activities.

We find these enhancements to be acceptable and accordingly have no objection to allowing Diablo Canyon Unit 2 to return to mid-loop operation on or about May 18, 1987.

Gary M. Holahan, Assistant Director for Region III and V Reactors Division of Reactor Projects - III/IV/V

& Special Projects cc:

G. Knighton M. Mendonca, RV C. Trammell W. Lyon 8705270640 8705l 5 PDR ADQCK 05000323 P

PDR DISTRIBUTION

,, bOO NRC/L PDR PD5 Reading DMCrutchfield GMHolahan JLee OGC-Bethesda EJordan JPartlow ACRS (10)

• See previous concurrence

• DRSP/PD5

• RSB

• DRSP/D:PD5 CTrammell:cd WLyon GWKnighton 5/11 /87 5/11 /87 5/12 /87 OFFICIAL RECORD COPY DSP/D GMHolahan 5//g /87

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