05000341/LER-2019-002, Secondary Containment Airlock Doors Opened at the Same Time Resulting in a Condition Prohibited by Technical Specifications
| ML19112A331 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 04/22/2019 |
| From: | Fessler P DTE Electric Company |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NRC-19-0020 LER 2019-002-00 | |
| Download: ML19112A331 (6) | |
| Event date: | |
|---|---|
| Report date: | |
| Reporting criterion: | 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(B) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(ix)(A) 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)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i) |
| 3412019002R00 - NRC Website | |
text
Paul Fessler Senior Vice President and Chief Nuclear Officer DTE Energy Company 6400 N. Dixie Highway, Newport, MI 48166 Tel: 734.586.4153 Fax: 734.586.1431 Email: paul.fessler@dteenergy.com DTE 10 CFR 50.73 April, 22, 2019 NRC-19-0020 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001
Reference:
Fermi 2 NRC Docket No. 50-341 NRC License No. NPF-43
Subject:
Licensee Event Report (LER) No. 2019-002 Pursuant to 10 CFR 50.73(a)(2)(v)(C), DTE Electric Company (DTE) is submitting LER No. 2019-002, Secondary Containment Airlock Doors opened at the same time resulting in a condition prohibited by Technical Specifications.
No new commitments are being made in this LER.
Should you have any questions or require additional information, please contact Mr. Scott A. Maglio, Manager - Nuclear Licensing, at (734) 586-5076.
Sincerely, Paul Fessler Senior Vice President and CNO
Enclosure:
Licensee Event Report No. 2019-007, Secondary Containment Airlock Doors Opened at the Same Time Resulting in a Condition Prohibited by Technical Specifications
USNRC NRC-19-0020 Page 2 cc: NRC Project Manager NRC Resident Office Reactor Projects Chief, Branch 5, Region III Regional Administrator, Region III Michigan Public Service Commission Regulated Energy Division (kindschl@michigan.gov)
Enclosure to NRC-19-0020 Fermi 2 NRC Docket No. 50-341 Operating License No. NPF-43 Licensee Event Report (LER) No. 2019-002 Secondary Containment Airlock Doors Opened at the Same Time Resulting in a Condition Prohibited by Technical Specifications
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 03/3112020 (04-2018)
Estimated burden per response to comply with this mandatory collection request:
80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br />.
Reported lessons learned are incorporated into the licensing process and fed back to LICENSEE EVENT REPORT (LER) industry. Send comments regarding burden estimate to the Information Services Branch (T-2 F43), U.S. Nuclear Regulatory Commision, Washington, DC 20555-0001, or by e-mail (See Page 2 for required number of digits/characters for each block) to Inacollects.Resource@rc.gom, aod to the Desk Otticer, Office of Information and SeeNUREG-1022, R.3 for instruction and guidance for completing this form Regulatory Affairs, NEOB-10202, (3150-0104),
Office of Management and Budget, (See NRC02,R3frisrcinadgiacfocopeigtifrm Washington, DC 20503. Itoa means used to Impose an intormation collection does no1
display a currently valid OMB conBrol
- number, tre NRC may sot conduct or sponsor, and a person is not required to respond to, the information collection.
- 3. Page Fermi 2 05000 341 1
OF 3
- 4. Title Secondary Containment Airlock Doors Opened at the Same Time Resulting in a Condition Prohibited by Technical Specifications
- 5. Event Date
- 6. LER Number
- 7. Report Date
- 8. Other Facilities Involved Day Year Year Sequential Rev Facility Name Docket Number Number No.
Month Day Year N/A 05000 02 19 2019 2019 -
002 00 04 22 2019 Facility Name Docket Number N/A 05000
- 9. Operating Mode
- 11. This Report is Submitted Pursuant to the Requirements of 10 CFR §: (Check all that apply) 20.2201(b) 20.2203(a)(3)(i)
Q 50.73(a)(2)(ii)(A) 50.73(a)(2)(viii)(A) 20.2201(d) 20.2203(a)(3)(ii) 50.73(a)(2)(ii)(B) 50.73(a)(2)(viii)(B) 20.2203(a)(1) 20.2203(a)(4)
Q 50.73(a)(2)(iii) 50.73(a)(2)(ix)(A) 20.2203(a)(2)(i) 50.36(c)(1)(i)(A) 50.73(a)(2)(iv)(A) 50.73(a)(2)(x)
- 10. Power Level 20.2203(a)(2)(ii) f 50.36(c)(1)(ii)(A) 50.73(a)(2)(v)(A) 73.71(a)(4) 20.2203(a)(2)(iii) 50.36(c)(2) 50.73(a)(2)(v)(B) 73.71(a)(5) 20.2203(a)(2)(iv) 1 50.46(a)(3)(ii) 2/ 50.73(a)(2)(v)(C) 73.77(a)(1) 100 20.2203(a)(2)(v)
El50.73(a)(2)(i)(A) 50.73(a)(2)(v)(D) 73.77(a)(2)(i) 20.2203(a)(2)(vi) 50.73(a)(2)(i)(B) f 50.73(a)(2)(vii) 73.77(a)(2)(ii) 50.73(a)(2)(i)(c)
E] Other (Specify in Abstract below or in
CORRECTIVE ACTIONS
Contacted Security and Operations to reset pins and close door. Performed a walk down of the area. The airlock doors are now posted as "Emergency Exit Only" until the reactor building and auxiliary building door interlock is repaired.
A Human Performance Department Reset was issued as a result of this event. The event briefing sheet was presented to the Radiation Protection department staff. Radiation Protection Management communicated to the staff the importance of ensuring the first door is closed prior to opening the second door, and not challenging the interlock.
The interlocking device is being reviewed. When the appropriate design or adjustment is determined, the interlock will be repaired.
PREVIOUS OCCURRENCES
The negative pressure in SC was maintained by Reactor Building Heating Ventilation and Air Conditioning (RBHVAC)
((VA)) and remained within the TS requirement during this event. There are no previous occurrences that involved the human performance error of simultaneous opening of both air lock doors.Page 3
of 3