ML20140C663
| ML20140C663 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 04/14/1997 |
| From: | Modes M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Danni Smith PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| Shared Package | |
| ML20140C669 | List: |
| References | |
| NUDOCS 9704170447 | |
| Download: ML20140C663 (4) | |
See also: IR 05000277/1997001
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April 14, 1997
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Mr. D. M. Smith, President'
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PECO Nuclear
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Nuclear Group Headquarters
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Correspondence Control Desk
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P. O. Box 195 -
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Wayne, Pennsylvania 19087-0195
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SUBJECT: ROUTINE INTEGRATED INSPECTION 50-277/97-01 'AND 50-278/97-01 '
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- Dear Mr. Smith
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This refers to the inspection conducted from January .
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12,1997 through March 8,1997, at
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the Peach Bottom Atomic Power Station, Delta, Pennsylvania. The purpose of the
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inspection was to determine whether activities authorized by the licensee were conducted
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safely,.in accordance with NaC requirements. At the conclusion of the inspection, Mr. W.
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L. Schmidt discussed the findings with Mr. G. Edwards of your staff. The inspectors based
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these findings on independent observation of activities, interviews, and document reviews.
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PECO Nuclear operated both units well and responded well to equipment and plant
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problems. Operators performed well, however, in one isolated case an operator incorrectly.
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inserted a control rod causing a mispositioning error. This was not significant,- but
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' attention to detail needs to be stressed. Maintenance and surveillance testing continued to .
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bo performed well. The maintenance rule implementation for equipment failures was '
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effective, but had some minor areas that need to be addressed. Your staff properly
identified the feed water temperature instrument calibration issue and its effect on core
power. The inspectors opened an unresolved item to allow further investigation into how
improperly calibrated test equipment and a lack of knowledge on feed water temperature
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effects caused this issue. The need for continued focus on the depth of troubleshooting
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and the effectiveness of correcting issues after an initial problem was identified following
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several repeat issues on the Unit 3 high pressure coolant injection system and the E-1
emergency diesel generator. These issues while not affecting system operability when
identified, caused increas&d system out of service times to allow for corrective
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Engineering performed wellin response to plant issues. The organization showed
continued improvement in support of the facility and controlling of station modifications.
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However,' the unresolved item documented during the previous inspection remains open
because the excessive vibration found in the HPCI steam line has not been fully resolved.
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Radiation protection program implementation was good. Howeveri several areas of weak
performance were discussed with the radiation protection manager and bare further
management attention. Your staff responded well to the increase in reactor coolant
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conductivity, possibly due to control rod boron leaching, following a power reduction. An
unresolved item was opened to monitor the effects on core shutdown margin due to this
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9704170447 970414
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Mr. D. M. Smith
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suspected teaching of boron. Your staff also properly identified an isolated unlocked high
radiation door and took appropriate corrective actions.
In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter
and its enclosures will be placed in the NRC Public Docurnent Room.
We appreciate your cooperation.
i erely,d
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Michael C. Modes, Chief
Projects Branch 4-
Division of Reactor Projects
Docket / License No. 50-277/DPR-44
50-278/DPR-56
Enclosure:
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1. NRC Inspection Report 50-277/97-01 and 50-278/97-01
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Mr. D. M. Smith
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cc w/ encl:
G. A. Hunger, Jr., Chairman, Nuclear Review Board and Director, Licen;ing
T. Mitchell, Vice President, Peach Bottom Atomic Power Station
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G. Rainey, Senior Vice President, Nuclear Operations
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D. B. Fetters, Vice President, Nuclear Station Support
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T. Niessen, Director, Nuclear Quality Assurance
A. F. Kirby, Ill, External Operations - Delmarva Power & Light Co.
G. Edwards, Plant Manager, Peach Bottom Atomic Power Station
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G. J. Lengyel, Manager, Experience Assessment
J. W. Durham, Sr., Senior Vice President and General Counsel
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J. A. Isabella, Manager, Joint Generation, Atlantic Electric
W. T. Henrick, Manager, External Affairs, Public Service Electric & Gas
R. McLean, Power Plant Siting, Nuclear Evaluations
J. Vannoy, Acting Secretary of Harford County Council
R. Ochs, Maryland Safe Energy Coalition
J. H. Walter, Chief Engineer, Public Service Commission of Maryland
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L. Jacobson, Peach Bottom Alliance
Commonwealth of Pennsylvania
State of Maryland
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TMI - Alert (TMIA)
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Mr. D. M. Smith
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Distribution w/ encl:
Region i Docket Room (with concurrences)
W. Axelson, DRA
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K. Gallagher, DRP
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Nuclear Safety Information Center (NSIC)
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D. Screnci, PAO
NRC Resident inspector
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PUBLIC
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Distribution w/ encl: (Via E-Mail)
W. Dean, OEDO
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J. Shea, NRR
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J. Stolz, PDI-2, NRR
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Inspection Program Branch, NRR (IPAS)
R. Correia, NRR
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D. Taylor, NRR
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