Perry Is or Getting Sloppy?

Reposted from 2/9...

So about 17 days from this Jan 29 leak and reactor vessel control fumbling...we got this new scram on two SRVs opening up.

NRC: you happy about this?

Can they afford this?

Reported-originally posted from 2/2/2016

Lots of loop instrumentation, vent and drain pipe line leaks in the industry. So a leak caused them to begin the shutdown and the feedwater system went haywire on them scramming the plant. The shutdown didn't go smoothly as designed.

Vessel or steam generator level control is becoming a big problem for the industry.  

Simulator fidelity issues and just poor training? 

Perry is owned by FirstEntergy. Their stock price is in the gutter and OHIO sits on the Marcellus Shale field. When they going bankrupt?   

PRELIMINARY NOTIFICATION

January 29, 2016

PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE - PNO-III-16-001

This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. Some of the information may not yet be fully verified or evaluated and is basically all that is known by the Region III staff on this date.

Facility

Perry Nuclear Power Plant

FirstEnergy Nuclear Operating Company

SUBJECT: UNPLANNED SHUTDOWN GREATER THAN 72 HOURS DUE TO REACTOR

COOLANT SYSTEM LEAKAGE EXCEEDING TECHNICAL SPECIFICATION

LIMITS

On January 23, 2016, at 2100 EST, the Perry Nuclear Power Plant commenced a controlled plant shutdown due to an increasing trend in reactor coolant system leakage in the drywell. At 2122 EST leakage exceeded Technical Specification limits. On January 24, 2016, at 1007 ESTwith the plant at approximately 8 percent power, plant operators placed the motor-driven feedwater pump in service. During this operation, the reactor water level rose to the reactor trip set points. The reactor protection system auto-initiated, as designed, scramming the reactor.

The licensee continues to investigate the cause for the feedwater transient and reactor water level rise.

Following the plant shutdown, licensee personnel entered the drywell and identified the leak on recirculation loop ‘A’ pump discharge valve vent line. As required by Technical Specifications, on January 24, 2016, at 2059 EST the plant was cooled down to Mode 4 to conduct repairs. The leakage was contained in the plant. There was no impact on public health.

The State of Ohio has been notified.

This preliminary notification is issued for information only.

The Resident inspector responded to the control room to monitor plant parameters and licensee

actions. The NRC resident staff assisted by inspectors from the NRC Region 3 Office

monitored licensee actions to identify the leak and continue to monitor the repair activities.

The information presented herein has been discussed with the licensee, and is current as of

4:10 p.m. EST on January 29, 2016.

ADAMS Accession Number: ML16032A394

Contact: B. Dickson

(630) 829-9827

Billy.Dickson@nrc.gov