ENS 47418
ENS Event | |
|---|---|
07:00 Nov 6, 2011 | |
| Title | Radiography Camera Source Lock Malfunction |
| Event Description | A radiography crew working the Kuparuk Oil Field on the North Slope of Alaska experienced a malfunction of the locking system on an INC IR-100 exposure device.
After completing radiography activities, the source was cranked in however, the source was still 1/4 to 1/2 inch from the fully retracted position. There were no abnormal readings observed and the key was turned to the locked position. The crew has been trained for this type of situation. They dismantled the lock, cleaned it, rebuilt it, and retracted the source to its fully retracted position. Exposure Device: Industrial Nuclear IR-100 Device S/N: 6774 Source S/N: 70129B Source Activity: 80 curies Source Type: Ir192 There was no exposure from this event.
The following report was received via fax: On November 5th, the radiography crew working the Kuparuk Oil Field on the North Slope of Alaska experienced a malfunctioning locking system on an INC IR-100 exposure device (serial number 6774). During the shift, the source was cranked in and the camera was surveyed per the proper procedure. There were no abnormal readings observed during the survey and the key was turned to the lock position. When the crank assembly was removed it was noted that the pigtail was not fully seated. The 2 mR/hr boundary was reconfirmed and the Foreman and Supervisor were notified. The camera was surveyed and noted as being safe to transport. The camera was tagged out and placed in the Permanent Storage facility. A trained radiographer removed and cleaned the locking system. The locking system was successfully reinstalled. The camera has been returned to service. Exposure Device: Industrial Nuclear IR-100 Device S/N: 6774 Source S/N: 70129B Source Activity: 63.4 curies Source Type: Ir-192 Source Model # QSA 87703 There was no exposure to the crew or the general public during this incident. Notified the R4DO (Hay) and FSME (Camper). |
| Where | |
|---|---|
| Kakivik Asset Management Kuparuk Oil Field, Alaska (NRC Region 4) | |
| License number: | 50-27667-01 |
| Organization: | Kakivik Asset Management |
| Reporting | |
| 10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure | |
| Time - Person (Reporting Time:+6.07 h0.253 days <br />0.0361 weeks <br />0.00831 months <br />) | |
| Opened: | Keenan Remele 13:04 Nov 6, 2011 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | Nov 7, 2011 |
| 47418 - NRC Website | |
Kakivik Asset Management with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 540502019-05-05T08:18:0005 May 2019 08:18:00
[Table view]10 CFR 30.50(b)(2) Stuck Radiography Camera Source ENS 526912017-04-18T10:30:00018 April 2017 10:30:00 10 CFR 30.50(b)(2) Failure of the Radiography Camera Locking Mechanism ENS 525962017-03-07T05:00:0007 March 2017 05:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Did Not Lock in the Shielded Position When Retracted ENS 515822015-12-01T10:00:0001 December 2015 10:00:00 10 CFR 30.50(b)(2) Radiography Camera Fails to Lock Source Automatically When Retracted ENS 481192012-07-02T07:45:0002 July 2012 07:45:00 10 CFR 30.50(b)(2) Unable to Retract Source Into Radiography Camera ENS 474282011-11-10T20:10:00010 November 2011 20:10:00 10 CFR 30.50(b)(2) Radiography Camera Source Fails to Completely Retract ENS 474182011-11-06T07:00:0006 November 2011 07:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Lock Malfunction ENS 465332011-01-11T08:59:00011 January 2011 08:59:00 10 CFR 30.50(b)(2) Locking Mechanism Malfunction on Radiography Camera ENS 463232010-10-10T00:00:00010 October 2010 00:00:00 10 CFR 30.50(b)(2) Locking Mechanism Malfunction on Radiography Camera ENS 462332010-09-04T08:00:0004 September 2010 08:00:00 10 CFR 30.50(b)(2) Locking Mechanism Malfunction on Radiography Camera ENS 460522010-06-29T09:00:00029 June 2010 09:00:00 10 CFR 30.50(b)(2) Lock Malfunction on a Radiography Camera ENS 460512010-06-29T08:00:00029 June 2010 08:00:00 10 CFR 30.50(b)(2) Source Locking Malfunction of Radiography Camera ENS 456482010-01-22T09:00:00022 January 2010 09:00:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 456092010-01-06T10:50:0006 January 2010 10:50:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 455442009-12-07T13:30:0007 December 2009 13:30:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 455242009-11-27T17:00:00027 November 2009 17:00:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 454962009-11-13T00:30:00013 November 2009 00:30:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 454692009-10-27T08:45:00027 October 2009 08:45:00 10 CFR 30.50(b)(2) Radiography Source Unable to Fully Retract ENS 453842009-09-27T10:00:00027 September 2009 10:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Fails to Fully Retract Into Camera ENS 437692007-11-03T23:00:0003 November 2007 23:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Fails to Fully Retract Into Camera ENS 431172007-01-13T21:30:00013 January 2007 21:30:00 10 CFR 30.50(b)(2) Failure of Radiography Camera Source to Fully Retract ENS 430672006-12-28T11:30:00028 December 2006 11:30:00 10 CFR 30.50(b)(2) Failure of Radiography Camera Source to Fully Retract ENS 426822006-03-08T08:00:0008 March 2006 08:00:00 10 CFR 30.50(b)(2) Radiography Source Pigtail Disconnected from Drive Cable 2019-05-05T08:18:00 | |