ML17325B558

LER 99-006-00:on 990115,personnel Identified Discrepancy Between TS 3.9.7 Impact Energy Limit & Procedure 12 Ohp 4030.STP.046.Caused by Lack of Design Basis Control.Placed Procedure 12 Ohp 4030.STP.046 on Administrative Hold

ML17325B558
Person / Time
Site:	Cook
Issue date:	04/16/1999
From:	Orourke B INDIANA MICHIGAN POWER CO.
To:
Shared Package
ML17325B557	List: ML17325B556 ML17325B558
References
LER-99-006, LER-99-6, NUDOCS 9904290046
Download: ML17325B558 (1)

Text

r(RC Form 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB No: 3150.0104 EXPIRES 06)30/2001 (6-1998)

ESTSIIATED BURDEN PER RESPONSE TO CONIPLY WITH THIS MANDATORY INFORMATION COLLECTION REOVFST: 50 0 HRS. REPORTED LESSONS LEARNED ARE LICENSEE EVENT REPORT (LER) VICORPORATED INTO THE LICENSSIG PROCESS ANO FED BACK TO INDVSTRY.

FORWARD COMMENTS RECARDING BVRDEN ESTSIATE TO THE INFORMATION AND RECORDS MANAGEMENT BRANCH (f4 Fss) V S NVCLEAR F 'GVIATORY COMMISSON. WASHINGTON. DC 205554001. AND TO THE PAPERWORK REDUCTION PROJECT ($ 150410I). OFFICE OF MANAGEMENT AND BVOGET, WASIeNGTON. DC (See reverse for required number of 2050$

digits/characters for each block)

FACILITYNAME (5) DOCKET NUMBER (2) PAGE ($ )

Cook Nuclear Plant Unit 1 05000-315 1 of1 TITLE (4)

Fuel Crane Loads Lifted Over Spent Fuel Pool Could Impart Impact Energies Greater Than Technical Specification Limits EVENT DATE (5) LER NUMBER (6) REPORT DATE (7) OTHER FACILITIES INVOLVED (8)

ACILI N DOC NUMB R SEQUENTIAL REVISION MONTH DAY YEAR YEAR NUMBER NUMBER MONTH DAY D.C. Cook, Unit 2 05000-316 YEAR ACILITYNAM DOCKET'UMB R 01 15 1999 1999 006 00 04 16 1999 OPERATING THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR (I: (Check one or more) (11)

MODE (9) 20.2201 (b) 20.2203(a)(2)(v) 5o.73(a)(2)(i) 50.73(a)(2)(viii)

POWER 20.2203(a)(1) 20.2203(a)(3)(i) 50.73(a)(2)(ii) 50.73(a)(2)(x)

LEVEL (10) 00 20.2203(a)(2)(i) 20.2203(a)(3)(ii) 50.73(a)(2)(iii) 73.71 20.2203(a)(2)(ii) 20.2203(a)(4) 50.73(a)(2)(iv) OTHER 20.2203(a)(2)(iii) 50.36(c)(1) 50.73(a)(2)(v)

Specrr)r in Absrract Below 20.2203(a)(2)(iv) 50.36(c)(2) 50.73(a)(2)(vii) or nNRCForn)366A LICENSEE CONTACT FOR THIS LER (12)

NAME TELEPHONE NUMBER (Inc)Jde Area Code)

Ms. Brenda W. O'ourke, Licensing Engineer (616) 465-5901, x2604 COMPLETE ONE LINE FOR EACH COMPONENT FAILURE DESCRIBED IN THIS REPORT (13)

REPORTABLE REPORTABLE TO CAUSE SYSTEM COMPONENT MANUFACTURER To EPIX CAUSE SYSTEM COMPONENT MANUFACTURER EPIX SUPPLEMENTAL REPORT EXPECTED (14) EXPECTED MONTH DAY X YES SUBMISSION 05 28 1999 (If Yes, complete EXPECTED SUBMISSION DATE) NO DATE (15)

Abstract (Limit to 1400 spaces, i.e., approximately 15 single-spaced typewritten tines) (16)

On January 15, 1999, Operations identified a discrepancy between the Unit 1/2 Technical Specification (TS) 3.9.7 impact energy limit and procedure 12 OHP 4030.STP.046, "New and Spent Fuel Crane Operability Verification and Functional Tests." A preliminary review completed on February 23, 1999, indicated that in the event the fuel crane dropped its load from the maximum height of 15 inches above the spent fuel racks, with a current maximum fuel assembly weight of 1465 pounds (Ibs) and a Rod Cluster Control Assembly weight of 165 Ibs, a calculated impact energy of 24,450 inch-pounds (in-Ibs) could be imparted to the top of the spent fuel pool racks. This resultant impact energy is greater than the TS limit of 24,240 in-lbs, which was based on previous fuel assembly weights and.previously installed Exxon spent fuel racks. The currently installed Holtec fuel racks can withstand a calculated impact energy of 55,800 in-lbs. Due to untimely evaluation of the identified condition, information necessary to determine whether this condition was reportable was delayed. On February 23, 1999, in accordance with 10 CFR 50.73(a)(2)(i)(B), this condition was determined to be reportable for a condition prohibited by plant TS.

Preliminary investigation indicates that the cause was lack of design basis control for the Spent Fuel Pool system and attendant equipment, and its interface with Technical Specification requirements.

As immediate corrective action, 12 OHP 4030.STP.046 was placed on administrative hold, and a clearance was placed on the spent fuel crane to preclude fuel movement. The root cause investigation for this event has not been completed.

Based on the results, information regarding the safety significance of this condition, including additional corrective and preventive actions, will be provided in an update to this LER when the investigation is complete.

9904290046 9904i6 PDR ADQCK 050003i5