05000220/LER-2004-003, Re Inadequate Environmental Qualification Barrier Considerations Resulting in an Unanalyzed Condition

From kanterella
Revision as of 01:05, 16 January 2025 by StriderTol (talk | contribs) (StriderTol Bot insert)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Re Inadequate Environmental Qualification Barrier Considerations Resulting in an Unanalyzed Condition
ML042680338
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 09/13/2004
From: O'Connor T
Constellation Energy Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NMPIL 1867 LER 04-003-00
Download: ML042680338 (4)


LER-2004-003, Re Inadequate Environmental Qualification Barrier Considerations Resulting in an Unanalyzed Condition
Event date:
Report date:
Reporting criterion: 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition

10 CFR 50.73(a)(2)(i)

10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded

10 CFR 50.73(a)(2)

10 CFR 50.73(a)(2)(viii)(B)

10 CFR 50.73(a)(2)(iii)

10 CFR 50.73(a)(2)(iv)(A), System Actuation

10 CFR 50.73(a)(2)(x)

10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor

10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat

10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown

10 CFR 50.73(a)(2)(v), Loss of Safety Function

10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
2202004003R00 - NRC Website

text

.

Constellation Energy-Nine Mile Point Nuclear Station P.O. Box 63 Lycoming, New York 13093 September 13, 2004 NMP1L 1867 United States Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

Nine Mile Point Unit I Docket No. 50-220; DPR-63 Licensee Event Report 04-003, "Inadequate Environmental Qualification Barrier Considerations Resulting in an Unanalyzed Condition" Gentlemen:

In accordance with 10 CFR 50.73(a)(2)(ii)(B), we are submitting Licensee Event Report 04-003, "Inadequate Environmental Qualification Barrier Considerations Resulting in an Unanalyzed Condition."

Ve truly yours P n General Manager TO/JRH/jm Attachment cc:

Mr. S.-.~Collin-RC-Regional-A-dmisatoRegion-I:

Mr. G. K. Hunegs, NRC Senior Resident Inspector i.

' l l l '

e

- I,

I,

7 l, !.

' I I !

, -o I

i s.

NRIC FORM"66 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 06/30/2007

6-2004

, the NRC may digits/characters for ec block)..

not conduct or sponsor. and a person Is not required to respond to, the digitskhiaracters for each block)}

inormration collection.

l3. PAGE Nine Mile Point Unit 1 0500022 1 OF 3

4. TITLE Inadequate Environmental Qualification Barrier Considerations Resulting in an Unanalyzed Condition
5. EVENT DATE
6. LER NUMBER
7. REPORT DATE S. OTHER FACILITIES INVOLVED I

FACILTY NAME DOCKET NUMBER MONTH DAY YEAR YEAR SENUMBER REV MONTH DAY YEAR 05000 FACILITY NAME DOCKET NUMBER 02 25 2003 2004 - 003-00 09 13 2004 05000

9. OPERATING MODE 11.THIS REPORT IS SUBMITTED PURSUANTTO THE REQUIREMENTS OF 10 CFR§: (Checkal thatapply) 0-a 20.2203(a)(3)(i) _

05 50.73(a)(2)(i)(C) 0 50.73(aj(2)(vti) 1 0 20.2201(d) 0 20.2203(a)(3)(ii) 0 50.73(a)(2)(ii)(A) 0 50.73(a)(2)(vlii)(A) 0 20.2203(a)(1) 0 20.2203(a)(4) 0 50.73(a)(2)(ii)(B) 0 50.73(a)(2)(viii)(B) l0 20.2203(a)(2)(i) 0 50.36(c)(1)(i)(A) 0 50.73(a)(2)(iii) 0 50.73(a)(2)(lx)(A)

10. POWER LEVEL 0

20.2203(a)(2)Cii) 0 50.36(c)(1)(ii)(A) 0 50.73(a)(2)(iv)(A) 0 50.73(a)(2)(x)

O 20.2203(a)(2)(iii) 0 50.36(c)(2) 0 50.73(a)(2)(v)(A) 0 73.71(a)(4) 0 20.2203(a)(2)(iv) 0 50.46(a)(3)(ii) 0 50.73(a)(2)(v)(B) 0 73.71 (a)(5) 100 0 20.2203(a)(2)(v) 0 50.73(a)(2)(i)(A) 0 50.73(a)(2)(v)(C) 0 OTHER 0 20.2203(a)(2)(vi) 0 50.73(a)(2)(i)(B) 0 50.73(a)(2)(v)(D)

Specify in Abstract below or In (If more space is required, use additional copies of NRC Form 366A) (17)The event was not initially recognized as reportable. Subsequent corrective action program evaluation assessed the event as reportable.

IV.Corrective Actions-o-ns_--'---

- A
1. Doors D1 07 and D109 were closed, reestablishing the HELB barrier between the affected EQ zones.
2. Plant procedures were revised to include EQ considerations in the NMP1 breach permit process.
3. An assessment was conducted of the breach review procedure for other potential deficiencies. Other Tpermit" type procedures were also reviewed to assure that no applicable EQ considerations were omitted.
4.

Personnel involved in evaluating breach permits have been briefed on the requirement to include EQ considerations in NMP1 breach permit review.

In addition to the above, a comprehensive assessment of EQ program scope and implementation is being conducted within the provisions of the site corrective action program.

V. Additional Information

A. Failed Components:

None

B. Previous similar events

None--

C. Identification of components referred to in this Licensee Event Report:

Components IEEE 805 System ID Control Room NA Turbine Building NM Control Room Air Conditioning System VI Door NA IEEE 803A Function None None None DR