ML17261A134

LER 79-015/01T-0 on 790724:discovered Pipe Supports Not Meeting Design Specs of IE Bulletin 79-14.Caused by Lack of Documented Approvals for Field Changes & Nonconformance During Plant Const.Supports Reworked

ML17261A134
Person / Time
Site:	Ginna
Issue date:	08/01/1979
From:	Hutton J ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17244A751	List: ML17244A750 ML17261A134
References
LER-79-015-01T, LER-79-15-1T, NUDOCS 7908100475
Download: ML17261A134 (4)

Text

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~O 8 9 80 FACILITY STATUS  % POWER OTHER STATUS Q METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 CZ3 I S MO G 28 P P P 29 ~Q31 45 46 IE Bulletin 79-14 Xns ections 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Q 6 ~Z Q33 ~ZQ34 NA 7 8 9 10 44 45 80 PER SONNE L E XPOSUR ES NUMBER TYPE DESCRIPTION Q39 2 ~00 0 OET ~2Q33 NA 7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTIONQ41 7 8 I0000 9 11 JQ43 12 NA 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 Z Q4. NA 7 8 9 ID BD ISSUED

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Attachment LER 79-015 Au ust 1 1979 During the piping sytem inspections required by lE Bulletin No. 79-14, 10 pipe supports were determined to be, in nonconformance .

with design requirements. These supports were located on the containment spray (CS), residual heat removal (RHR), and service water {Sf) systems.

The following is a listing of the supports and nonconfozmances (NCR's G-79-88 through G-79-93 and G-79.-95 through G-79-97):

CS-53, one less support installed on lower containment spray ring than shown on drawing CS-235 pipe clamp not installed on lower containment spray zing at 235 location as shown on drawing CS-295 pipe clamp not installed on lower containment spray zing at 295 location as shown on drawing CS-12 U-bolt not installed as zequired by drawing RH-16 pipe clamp not installed as required by drawing 1

K7-3 pipe support not installed at location required by drawing SW-20 six U-bolts not installed as required by drawing SM-22 four U-bolts not installed as required by drawing K'I-23 pipe clamp not installed as required by drawing SH-29 pipe support not installed at location required by dramng Supports CS-235, CS-295, CS-12, IN-16, M-3, &7-22, SH-23, and SW-29 have been reworked in accordance with the drawing requirements. An engineering evaluation of the nonconformance identified on CS-53 determined that the existing installation was adequate to assure performance of its intended function. Rein-spection of support SH-20 showed that the nonconformance had been incorrectly reported; and it was in fact installed correctly.

The corrective actions described above have been completed.

Xt is our conclusion that the nonconformances are a result of a lack of documented approvals for field changes and nonconformances during original plant construction. Additional inspections as required by lE Bulletin No. 79-14 are being performed as described in our response dated August 1, 1979.

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