ML20082G402

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Forwards Rev 0 to Topical Rept 093, TMI-1 Reactor Bldg Twenty Yr Tendon Surveillance (Insp Period 6)
ML20082G402
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 04/07/1995
From: Broughton T
GENERAL PUBLIC UTILITIES CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20082G405 List:
References
C311-95-2166, NUDOCS 9504130238
Download: ML20082G402 (1)


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4 GPU Nuclear Corporation gf Route 441 South P.O. Box 480 Middletown, Pennsylvania 17057-0480 (717) 944-7621 Writer's Direct Dial Number:

(717) 948-8005 e

April 7.1995 C311-95-2166 U. S. Nuclear Regulatory Commission

'Att: Document Control Desk

' Washington, DC 20555 ,

Dear Sir:

Subject:

Three Mile Island Nuclear Station, Unit 1 (TMI-1)

Operating License No. DPR 50 Docket No. 50-289 Twentieth Year Reactor Building Tendon Surveillance Test In accordance with TMI-1 Technical Specifications (TS) 4.4.2.1.6.a, enclosed is the-report, "Three Mile Island Unit 1 Reactor Building Twenty Year Tendon Surveillance'(Inspection Period 6)," Topical Report (TR) No. 093. The TR includes the two-volume contractor (Precision Surveillance Corp.) report entitled "20th Year Physical Surveillance of the Three Mile Island Unit 1 Containmtmt Building."

Our evaluation of the.results from tests and inspections conducted 20 years after the initial Structural Integrity Test (SIT) demonstrate that the TMI-1 Reactor Buildhg post tensioning system is in good condition and capable of performing its, intended futiction during all ~ design basis events. The functionai capability of the system remains within design limits and no abnormal relaxation of prestressing forces in the tendons has occurred.

Sincerely,

.2d Llw T. G. B ughton 2CC0G2 Vice President and Director, TMI Enclosure MRK-

-cc: Region I Administrator i TMI-1 Senior Project Manager g0\

TMI Senior Resident Inspector 9504130238 950407 PDR ADOCK 05000289 P . PDR GPU Nuclear Corporation is a subsidiary of General Public Utilities Corporation a