ENS 45609
ENS Event | |
|---|---|
10:50 Jan 6, 2010 | |
| Title | Failure to Fully Retract the Source of a Radiography Camera |
| Event Description | On January 6th a 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.
When returning the source (Ir-192, 108 curies) the locking bar deployed prematurely. The crew reset the locking bar and was able to return the source to the safe and secure position. The crew was working a remote location using a Tucker (tracked machine for traveling over snow) and called for the night foreman. They met at a drill site where the exposure device was reconnected to the drive cables. The source was extended and then retracted. It was noticed that on the return the crank assembly became hard to turn. After the locking bar tripped, the exposure device was surveyed with no noticeable indication that the source was not in the safe and secure position. When the crank assembly was disconnected it was noted that the pig tail was not in its proper position. The exposure device was transported back to the main office. When the lock was disassembled there the technician noted: 'The lock chamber had a reasonable amount of grit coated to the internals.' It should be noted that the exposure device had just been received the day prior. The weather was minus 10 degrees with a wind speed of 10 knots. The lock assembly was cleaned and reassembled as was the crank assembly. There was no exposure to the crew or the general public during this incident. |
| Where | |
|---|---|
| Kakivik Asset Management Anchorage, 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:+0.85 h0.0354 days <br />0.00506 weeks <br />0.00116 months <br />) | |
| Opened: | Keenan Remele 11:41 Jan 6, 2010 |
| NRC Officer: | Charles Teal |
| Last Updated: | Jan 6, 2010 |
| 45609 - 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 | |