05000333/LER-2016-003, Regarding Concurrent Opening of Reactor Building Airlock Doors
| ML16216A162 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 08/03/2016 |
| From: | Brian Sullivan Entergy Nuclear Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| JAFP-16-0123 LER 16-003-00 | |
| Download: ML16216A162 (4) | |
| Event date: | |
|---|---|
| Report date: | |
| Reporting criterion: | 10 CFR 50.73(a)(2)(v), Loss of Safety Function |
| 3332016003R00 - NRC Website | |
text
Entergy Nuclear Northeast Enteigy James A. AtzPatnck NPP P.O. Box 110 Lycoming, NY 13093 Tel 315-349-6024 Fax 315-349-6480 Brian R. Sullivan Site Vice President JAF JAFP-1 6-0123 August 3, 2016 United States Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001
Subject:
LER: 2016-003, Concurrent Opening of Reactor Building Airlock Doors James A. FitzPatrick Nuclear Power Plant Docket No. 50-333 License No. DPR-59
Dear Sir or Madam:
This report is submitted in accordance with 10 CFR 50.73(a)(2)(v)(C).
There are no new regulatory commitments contained in this report.
Questions concerning this report may be addressed to Mr. William Drews, Regulatory Assurance Manager, at (315) 349-6562.
SWvan Site Vice President BRSIWD/ds
Enclosure:
JAF LER 2016-003, Concurrent Opening of Reactor Building Airlock Doors cc:
USNRC, Region I Administrator USNRC, Project Manager USNRC, Resident Inspector INPO Records Center (ICES)
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY 0MB: NO. 3150-0104 EXPIRES: 1013112018 (11-2015)
, the NRC may not conduct or sponsor, and a person is not required to respond to, the information collection.
- 3. LER NUMBER YEAR SEQUENTIAL REV James A. FitzPatrick Nuclear Power Plant 05000
333 NUMBER NO.
2016 003 00
Cause
Secondary Containment access openings are equipped with green indicating lights that are lit when the opposing access opening door is fully shut. None of the parties involved indicated they observed the green indicating light not being lit prior to opening the airlock door. Therefore, the cause of this condition was determined to be simultaneous opening of the doors.
Similar Events
Internal Events LER 2015-004-00, Concurrent Opening of Reactor Building Airlock Doors; Condition Report:
CR-JAF-201 5-04146, September 17, 2015 External events:
Quad Cities Nuclear Generating Station: LER 2015-008, Interlock Doors Opened Simultaneously Cause Loss of Secondary Containment Duane Arnold Energy Center: LER 2015-003-01, Both Doors in Secondary Containment Airlock Opened Concurrently
Corrective Actions
Completed Actions Both airlock doors (24R-272-5 & -6) on the northeast Reactor Building Elevation 272 Secondary Containment airlock were closed within approximately two (2) seconds.
Condition Report initiated (CR-JAF-2016-01996); NRC notified via ENS 51985.
Installed cameras and monitors on both sides of the northeast Reactor Building Elevation 272 Secondary Containment airlock. This will allow verification that the opposing door will not be simultaneously opened.
Safety Consequence and Implications Actual Consequences There were no actual consequences of this event relative to nuclear, industrial, or radiological safety.
Potential Consequences The Secondary Containment differential pressure remained more negative than 0.25 inches of water vacuum while this condition existed. Therefore, there are no potential consequences of this event relative to nuclear, industrial, or radiological safety.
References Condition Report: CR-JAF-2016-01996, June 7,2016, Concurrent Opening of Secondary Containment Access Airlocks Technical Specification 3.6.4.1