IR 05000277/1978031
| ML19289D696 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 02/01/1979 |
| From: | Greenman E, Mccabe E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19289D694 | List: |
| References | |
| 50-277-78-31, 50-278-78-34, NUDOCS 7903140146 | |
| Download: ML19289D696 (4) | |
Text
U.S. NUCLEAR REGULATORY COMMISSION
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OFFICE OF INSPECTION AND ENFORCEMENT Region I 50-277/78-31 Report No, so_p7a/7s_14 50-277 Docket No.
50-278 DPR-44 C
License No. DPR-56 Priority
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Category C
Licensee:
Philadelohia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101 Facility Name:
Peach Bottom Atomic Power Station, Units 2 and 3 Inspection at:
Delta, Pennsylvania Inspection conducted: November 27-30, and December 18-22, 1978 Inspectors:
N, m _.-
f///79 A-Edward G. Wednmarf, Reactor Inspector date signed RO&NS date signed date signed Approved by:
C. O. &6.6. h c.,I h 1 E. C. McCabe Jr., Chief, Reactor Projects date signed Section No. 2, RO&NS Branch Inspection Summary:
Inspection on November 27-30, and December 18-22,1978 (Combined Report Nos.
50-277/78-31 and 50-278/78-34):
Areas Inspected:
Routine unannounced inspection by an NRC regional based inspector of plant operations, facility tours, Bulletin response, review of monthly status reports, followup on previously identified unresolved items, and independent effort. The inspection involved 34.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> onsite at Unit 2 and 34.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> on site at Unit 3 by one 1RC regional inspector.
,Rasul ts : No items of noncompliance were identified.
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79031401 %
Region I Form 12 (Rev. April 77)
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DETAILS 1.
Persons Contacted Principal Licensee Representatives C. E. Anderson, Operations Engineer B. Clark, Assistant Engineer - Maintenance M. J. Cooney, Superintendent - Nuclear Generation Division S. L. Daltroff, Vice President, Electric Production R. Fleischmann, Assistant Station Superintendent N. Gazda, HP&C S. Roberts, Results Engineer
- W. Ullrich, Station Superintendent Other licensee employees were contacted during the inspection.
These included engineering personnel, administrative personnel, reactor operators, shift supervision, security personnel and health physics personnel.
- Denotes presence at management meeting.
2.
Previous Inspection Item Update (Closed) Unresolved Items (277/78-19-01 and 278/78-23-01):
Procedural disposition to assure adequacy of documentation to demonstrate T.
S. Compliance for inerting requirements.
The inspector reviewed ST.9.16, " Containment Gross Leak Rate Detection", Revision 6 dated August 16, 1978.
The revision incorporates a tabulation and requires that the time when the mode switch is put in or taken out of run as well as the item when Oxygen concentration reaches four percent (T.
S. value) be recorded. 'The inspector had no further questions regarding this matter. Item is resolved.
3.
Logs and Records The following logs and records were reviewed pursuant to the licensee's administrative requirements.
Management review of logs was evidenced by frequent initialing of entries.
No unacceptable conditions were identified.
a. Shift Supervision Log, November 15 - December 20, 1978 b. Unit 2 Jumper Log - current entries c. Unit 3 Jumper Log - current entries d. Reactor Operators Log Book - Unit 2 - November 15 - December 20, 1978 e. Reactor operators Log Book - Unit 3 - November 15 - December 20, 1978 f. Maintenance Request Forms Unit 2 & 3 - Sampling Audit -
December 1978
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4.
Facility Tours Facility tours were conducted on an unescorted basis at Unit 2 and Unit 3.
Areas examined included:
Security access controls, verification of minimum control room staffing, and general plan status.
Inspections were conducted to determine the general state of cleanliness, housekeeping, and observations of plant conditions.
No significant fluid leaks were identified.
The inspector checked equipment operability and verified by comparison of selected control room instrumentation that limiting conditions for operation were being satisfied.
Numerous High radiation doors were checked and found to be locked as required.
No unacceptable conditions were identified.
5.
In Office Reviews of Monthly Operating Reports The following licensee Nports have been reviewed in office.
Peach Bottom Atomic Power Stations Monthly Operating Reports for:
October 1978 dated November 19, 1978 November 1978 dated December 14, 1978 These reports were reviewed pursuant to Technical Specifications and verified to determine that Operating statistics including shutdowns and narrative sumaries of the months operating experience were contained therein.
No unacceptable conditions were identified.
6.
CR105 Auxiliary Contacts on Scram Contactors The licensee's reponse to IE Bulletin 78-05 dated May 19, 1978 was reviewed in detail, to confirm that the Bulletin had been received by licensee management, reviewed as required and corrective action if any had been implemented.
Additional information had also been provided by R1 to the licensee regarding reported failures of CR105 auxiliary contacts used in NEMA. Size 2 contactors resulting from loose plunger arm screws in the assembly which let the plunger arms drop out or become misaligned.
ihe licensee had also been advised this type problem would not necessarily be restricted to those NEMA sized of GE starter / contactor/ reversers referenced in IEB 78-05.
The licensee had stated in his response that the CR105X auxiliary contact mechanism was not used in any safety system at the Peach Bottom facilities.
The CR105X contacts are utilized as auxiliary contacts on the scram contactors.
These specific auxiliary contacts are used as " seal in" for annunciation - and computer input.
Based on the above, licensee inspections were conducted of all auxiliary contacts on the 24 scram contactors.
The inspector reviewed the results of these inspections dated October 26,1978 (Unit 2 & 3)
and November 8,1978 (Unit 3). Missing lock washers and loose screws were identified.
Lock washes were installed'as neccessary and plunger screws were tightened.
The licensee also identified
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one multiple auxiliary contact assembly where binding occurred due to an improperly placed fiber insulating space.
This was adjusted to allow free movement.
G E advised the licensee against the use of " Loc-Tite" as a corrective measure.
The licensee also plans to inspect the auxiliary contact / plunger assemblies for tightness each refueling outage.
No unacceptable conditions were identified.
7.
Instrumentation Problems Related to Control Room Instrumentation Alarms, Malfunctions and Indications The inspector reviewed the licensees progress towards eliminatici of the instrumentation problems as identified in IE Inspection 50-278/77-35. Some resolution has been provided.
Additional personnel have been authorized for the 1&C group and the licensee is attempting to find qualified personnel for these positions.
Instrumentation problems were identified by the Operations group and brought to management attention. The licensee is developing a control room Annunciator and Instrument Status (computerized) to further enhance control over this problem.
This area will continue to be monitored closely by RI until resolution is acheived by the licensee.
8.
Exit Interview At periodic intervals during the course of this inspection, meetings were held with facility Senior Management denoted in Detail 1 to discuss inspection scope and findings.
The cognizant licensee representative acknowledged inspection findings.