IR 05000280/1987027
| ML18151A077 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 09/22/1987 |
| From: | Jape F, Lenahan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18151A076 | List: |
| References | |
| 50-280-87-27, 50-281-87-27, NUDOCS 8709300379 | |
| Download: ML18151A077 (4) | |
Text
e UNITED STATES NUCLEAR REGULATORY COMMISSION
REGION II
101 MARIETTA STREET, ATLANTA, GEORGIA 30323 Report Nos.:
50-280/87-27 and 50-281/87-27 Licensee:
Virginia Electric and Power Company Richmond, VA 23261 e
Docket Nos.:
50-280 and 50-281 Facility Name:
Surry 1 and 2 License Nos.: DPR-32 and DPR-37 Inspection Conducted:
Inspector:~~~~~~~~4'......J__,~~~~~~~~~~~~~~
J. J. Lenahan
~
Approved by:
01(.(,yt 4 q~
F. Jape, Chief, Test Prograrii"~~~
Engineering Branch Division of Reactor Safety SUMMARY
.
Date igne f/2.2--/JJ Date Signed Scope:
This routine, unannounced inspection was in the area of the snubber surveillance progra Results:
No violations or deviations were identifie PDR ADOCK 05000280 G
' \\* Persons Contacted Licensee Employees REPORT DETAILS
- D. L. Benson, Station Manager e
- R. H. Blount, Superintendent of Technical Services
- G. D. Miller, Licensing Specialist
- H. L. Miller, Assistant Station Manager NRC Resident Inspectors
- W. E. Holland
- Attended exit interview Exit Interview The inspection scope and findings were summarized on August 11, 1987, with those persons indicated in paragraph 1 abov The inspector described the areas inspected and discussed in detail the inspection finding No dissenting comments were received from the license The licensee did not identify as proprietary any of the materials provided to or reviewed by the inspectors during this inspectio.
Licensee Action on Previous Enforcement Matters This subject was not addressed in the inspectio.
Unresolved Items Unresolved items were not identified during this inspectio.
Snubber Surveillance Program, Units 1 and 2 (70370)
The inspector examined procedures and quality records related to the snubber surveillance program and inspected selected snubbers on safety-related piping systems. Acceptance criteria utilized by the inspector are specified in Technical Specification 4.1 Review of Snubber Survei 11 ance Pro*cedures The inspector examined the following procedures which control the Unit 2 snubber surveillance activities:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
e
Procedure numbers l-PT-39A-l and 2-PT-39A-l, Visual Inspection
- Accessible Snubbers - As Left Procedure numbers l-PT-398-1 and 2-PT-398-1, Visual Inspection -
Accessible Snubbers - As Found Procedure numbers l-PT-39A-2 and 2-PT-39A-2, Visual Inspection -
Inaccessible Snubbers - As Left Procedure numbers l-PT-398-2 and 2-PT-398-2, Visual Inspection -
Inaccessible Snubbers - As Found Procedure numbers l-PT-39.3 and 2-PT-39.3, Mechanical Snubber Functional Testing Procedure numbers l-PT-39.4 and 2-PT-39.4, Snubber Functional Test Procedure number PT-39.5 Snubber Surveillance Program Update Procedure number ENG-51. 0, Snubber Se 1 ect ion for Fun ct i ona 1 Testing Procedure number SUADM-M-34, Snubber Surveillance and Testing Inspection of Snubbers The inspector performed a visual inspection of the accessible snubbers 1 i sted be 1 ow and verified that the snubbers were not damaged, that attachment to the supporting structure and piping was secure, that the fluid level in the hydraulic snubber reservoirs was higher than target levels, and that leakage of the fluid was not occurring. The inspector also examined the snubber component numbers stamped on the snubbers and verified that the component numbers were accurately 1 i sted in the snubber tab 1 es attached to the vi sua 1 inspection procedures, The snubber component numbers are used by the licensee to monitor snubber service life dat Snubbers examined were as follows:
( 1)
Snubber numbers l-SHP-MSS-518*, 52A*, 528*, 59A*, 598*, 60A*,
608*, 61A* and 618* on the Unit 1 main steam syste (2)
Snubber numbers l-SHP-HSS-36, 37, 38, 39 and 50* on the Unit 1 inlet steam line to the turbine driven auxiliary feedwater pum (3)
Snubber numbers 2-SHP-MSS-l*, 2*, 3*, 4*, 5* and 6* and 2-SHP-HSS-15 through 20, 28 through 30, 33A, 338, 34A, 35A, and 358 on the Unit 2 main steam syste ( 4)
e
Snubber numbers 2-SHP-36A, 368, and 50 on the Unit 2 inlet steam line to the turbine driven auxiliary feedwater pum *Denotes mechanical snubber All other snubber listed are hydrauli Review of Quality Records The inspector examined the following quality records:
(1)
Results of visual inspections performed on Unit 1 access1ble and inaccessible snubbers in May 1986, December 1986, and May 1987 (2)
Results of visual inspections performed on Unit 2 accessible and inaccessible snubbers *in February 1986, and on Unit 2 inaccessible snubbers in October 198 (3)
Results of functional tests performed on Unit 1 mechanical and hydraulic snubbers in May 198 As a result of the high failure rate experienced when testing the Pacific Sci ent ifi c ( PSA)
mechanical snubbers, the licensee tested 100 percent of the PSA mechanical snubbers to comply with the requirements of TS 4.17. Seventeen of the 69 PSA snubbers tested failed to meet the fun ct i ona 1 test acceptance criteri Due to the high failure rates experienced in. the May 1986 and in previous functional tests of the PSA snubbers, the licensee decided to rep 1 ace the PSA mechani ca 1 snubbers with another bran This work was completed under Engineering Work Request (EWR) 86-14 (4)
Results of functional tests performed on Unit 1 mechanical and hydraulic snubbers in November 198 Two of the PSA mechanical snubbers failed the functional tests which required test all 27 of the Unit 2 mechanical snubbers. All the Unit 2 PSA snubbers were replaced with another branch under EWR 86-14 (5)
Deviation Report (DR)
Numbers Sl-86-085, 759, and 866 and S2-86-371 and 37 (6)
EWR 85-433,86-045, and 86-146 (7)
Snubber service life records (computer listings) which indicate the snubber seal life expiration date Within the areas inspected, no violations or deviations were identified.