ENS 55659

v t e ENS Event
06:00 May 11, 2017
Title	Gauge Shutter Stuck Open
Event Description	The following information was received from the state of Minnesota via email: It has come to our attention during our IMPEP review that we have some events that were not directly reported to the HOO as required. They were reported to NMED, but we are now reporting them directly to the HOO. Certainteed Corporation reported that the shutter on a fixed nuclear gauge (Thermo EGS model SCL-1C, serial #UX458) failed to close on 5/11/2017. The gauge contained a 3.7 GBq (100 milliCi) Sr-90 source (Eckert & Ziegler model SIF.D1). The area within 15 feet of the gauge was cordoned off. Certainteed contacted the manufacturer and arrangements were made for Thermo EGS to inspect and service the gauge on 5/12/2017. The cause of the event was determined to be a broken pin on the mechanical plate that controls the on-off indicator light. The pin was repaired and the shutter mechanism was tested and performed properly. The Minnesota Department of Health conducted an onsite visit. Minnesota event number: 170004

ENS 55659 +/-
Where
Certainteed Corporation Shakopee, Minnesota (NRC Region 3)
License number:	General License
Organization:	Minnesota Department Of Health
Reporting

Agreement State
Time - Person (Reporting Time:+40327.28 h1,680.303 days <br />240.043 weeks <br />55.24 months <br />)
Opened:	Sherrie Flaherty 14:17 Dec 16, 2021
NRC Officer:	Mike Stafford
Last Updated:	Dec 16, 2021
55659 - NRC Website
v • d • e

v t e Emergency Notification System
Certainteed Corporation with Agreement State
WEEKMONTHYEAR2017-05-11T06:00:00 [Table view]
[ENS list for Certainteed Corporation]

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