Headquarters Daily Report

                         MARCH 27, 1998

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                    REPORT             NEGATIVE            NO INPUT
                    ATTACHED           INPUT RECEIVED      RECEIVED

HEADQUARTERS                           û                   
REGION I                               û                   
REGION II                              û                   
REGION III                             û                   
REGION IV           û                                      
PRIORITY ATTENTION REQUIRED  MORNING REPORT - REGION IV  MARCH 27, 1998

Licensee/Facility:                     Notification:

Southern California Edison & San       MR Number: 4-98-0016
Diego Gas & Electric Co.               Date: 03/26/98
San Onofre 3                           Resident Inspectors                
San Clemente,California              
Dockets: 50-362
PWR/CE                                

Subject: RESTART OF UNIT 3 FROM CYCLE 9 MIDCYCLE OUTAGE                  

Discussion:

On March 26, 1998, at 12:02 p.m. PST, San Onofre Unit 3 connected to the 
grid following completion of a 19-day midcycle outage that included      
approximately 12 days in a midloop condition.  The main purpose of the   
midcycle outage was to perform steam generator (SG) primary and secondary
side (egg crate) inspections, pressurizer heater restoration, and reactor
coolant system (RCS) inconel instrument nozzle replacement.  As a result 
of the inspections, the licensee determined that 22 SG tubes required    
plugging based on eddy current inspection and an additional 27 tubes were
plugged as a precautionary measure based on SG secondary side inspection.
The licensee replaced 14 of 30 pressurizer heaters and abandoned one for 
replacement in the next refueling outage.  The licensee performed weld   
repairs to 19 RCS inconel instrument nozzles.                            
                                                                         
The licensee performed additional significant activities during the      
outage.  The licensee installed one mechanical nozzle seal assembly on a 
pressurizer instrument nozzle and drilled the holes for future           
installation of two others.  The licensee replaced all remaining 480V    
reversing line starters that had been previously determined to be        
susceptible to foreign material intrusion and degradation.  The licensee 
replaced a Kerotest check valve in the charging system that was a similar
design to valves in the charging system that had previously malfunctioned
and that were replaced in the Cycle 9 refueling outage.  The licensee    
replaced nine elbows on six moisture separator reheater drain lines as a 
result of flow accelerated corrosion.  However, none of the lines were   
below minimum wall thickness.                                            

Regional Action:

The resident inspectors provided extensive monitoring of the midloop     
operations and monitored the startup.                                    

Contact:  Dennis Kirsch              (925)975-0290
          Jim Sloan                  (714)492-2641
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