ML20246F754
| ML20246F754 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 07/05/1989 |
| From: | Hairston W GEORGIA POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 89-004, 89-4, HL-621, NUDOCS 8907140015 | |
| Download: ML20246F754 (4) | |
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HL-621 l
0202V July 5, 1989 i
-0.S. Nuclear Regulatory Commission l
ATTN: Document Control Desk l
Washington, D.C.
20555 I
PLANT HATCH - UNIT 2 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 SPECIAL REPORT 89-004 FIRE RATED ASSEMBLIES INOPERABLE FOR LONGER THAN 14 DAYS RESULT IN SPECIAL REPORT AS REOUIRED BY FIRE HAZARDS ANALYSIS Gentlemen:
In accordance with the requirements of the Plant Hatch Unit 2 Technical Specifications Section 6.9.2, and the Fire Hazards Analysis (FHA) Appendix B,
Georgia Power Company is submitting the enclosed Special Report (SR) concerning an event where fire rated assemblies were inoperable longer than 14 days.
This event occurred at Plant Hatch -
Unit 2.
Sincerely, y.
. (b H. G. Hairston, III JJP/ct
Enclosure:
SR 50-366/1989-004 c:
(See next page.)
8907140015 090705 PDR ADOCK 05000366 S
PNU
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i U.S. Nuclear Regulatory Commission July 5. 1989 i
i Page Two c: Georaia Power Company Mr..H. C. Nix, General Manager - Nuclear Plant Mr. J. D. Heidt, Manager Engineering and Licensing - Hatch GO-NORMS U.S. Nuclear Reculatory Commission. Washinaton. D.C.
Mr. L. P. Crocker, Licensing Project Manager - Hatch i
U.S. Nuclear Reculatory Commission. Reaion II Mr. S. D. Ebneter, Regional Administrator Mr. J. E. Menning, Senior Resident Inspector - Hatch' l
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0202V l
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ENCLOSURE PLANT HATCH - UNIT 2 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 SPECIAL' REPORT 89-004 i-FIRE RATED ASSEMBLIES INOPERABLE FOR LONGER THAN 14 DAYS RESULT IN SPECIAL REPORT AS REOUIRED BY FIRE HAZARDS ANALYSIS 1
A.
REQUIREMENT FOR REPORT This report is. required per Unit 2 Technical Specifications section 6.9.2.
This section of the Technical Specifications states that special reports for fire protection. equipment operating and surveillance requirements shall be submitted as required by the Fire Hazards Analysis (FHA) and its Appendix B requirements.
The FHA, Appendix B, section 1.1.1 states that sealing devices in fire rated assembly penetrations separating safety related areas may be inoperable for up to 14 days.
If this time limit is exceeded, a special report is required.
B.
UNIT STATUS AT TIME OF EVENT On' 6/8/89 at 0831 CDT, Unit 2 was in the run mode at an approximate power level of 2180 CMHT (approximately 89% of rated thermal power).
,. C. DESCRIPTION OF EVENT On 5/25/89 at 0831 CDT, the sealing devices for penetrations 2Z43-H310C and 2Z43-H311C in the three hour fire rated east wall of the Oil Storage Room on the 112 foot elevation of the Unit 2 Control Building were breached.,
The sealing devices were breached in a controlled manner to support the installation of piping for a new Control Building Chilled Water System per Design Change Request 88-146.
The sealing devices remained breached (inoperable) for more than 14 days.
i Licensed plant operations personnel declared the sealing devices in the east wall of the Oil Storage Room inoperable prior to the sealing devices being breached.
An hourly fire watch was established and J
Limiting Condition for Operation (LCO) 2-89-231 was initiated to ensure compliance with the FHA, Appendix B, section 1.1.1, action a.
On 6/8/89 at 0831 CDT, the sealing devices were still breached.
HL-621 0202V E-1 b
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ENCLOSURE (Continued)
FIRE RATED ASSEMBLIES INOPERABLE FOR LONGER THAN 14 t
DAYS RESULT IN SPECIAL REPORT AS REQUIRED L
BY FIRE HAZARDS ANALYSIS D.
CAUSE OF EVENT The sealing devices were breached in a controlled manner to support scheduled work activities, i.e.,
the installation of piping per Design Change Request 88-146.
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ANALYSIS OF EVENT L
K Licensed plant operations personnel declared the sealing devices in the east wall inoperable and established the required fire watches to ensure compliance with the FHA section 1.1.1, action statement a.
The action statement requires that; Hith one or more-of the required fire rated assemblies and/or sealing devices inoperable, within one hour establish a continuous fire watch on at least one side of the affected assembly (s) and/or sealing device (s) or verify the OPERABILITY of fire detectors on at least one side of the inoperable assembly (s) and sealing devices (s) and establish an hourly fire watch patrol.
The sealing devices were breached in a controlled manner using approved administrative controls.
Fire watches were established and all requirements of the FHA were met. These steps ensured that, were a fire to occur, it would be promptly detected and extinguished.
Based on the above information, it is concluded this event did not have any adverse nuclear safety impact.
F.
CORRECTIVE ACTIONS The sealing devices in the east wall of the Oil Storage Room were declared inoperable and an hourly fire watch was established per the requirements of the FHA.
On 6/8/89 at 1435 CDT, the sealing devices were declared operable and LCO 2-89-231 was terminated after the penetrations were sealed and inspected by plant Quality Control inspectors.
HL-621 0202V E-2
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