[Eng-div] Lessons Learned
Henry Robertson
robertsn at jlab.org
Fri Feb 1 09:14:21 EST 2013
*_Please Review_*/.
Below is an excerpt from a near-miss incident at another DOE facility.
I've only included the sections that seem important to JLab
staff.//Although the event seems simple, as you will see a variety of
circumstances and actions built into a near miss situation. Please read
and discuss this with your fellow workers./
*Statement:* Urgency does not negate the need to work safely. In some
instances, responses to urgent work may introduce new or additional
hazards that need to be addressed and mitigated before work commences.
*Discussion:* Recently, a worker incorrectly used a 6-foot portable
A-frame step-ladder to access equipment. The ladder was used in its
folded position, its top cap was placed against a structure supporting
the equipment being accessed, and the worker stood on the top cap. This
occurred twice during the evolution. It is a violation of OSHA
regulations to utilize a portable A-frame ladder in this way.
The proper ladder for this work was available within the facility, but
was never obtained.
NOTE: The top cap is the horizontal crosspiece at the peak of an A-frame
ladder. The top step, the highest step the user can stand on safely,
typically is the third step below an A-frame ladder's top cap. On newer
ladders, the second step below the top cap often is marked with a label
stating "Do not stand at or above this level."
*Analysis:* During the analysis that followed this event, it was
discovered that several hazards (or risk factors) existed during work
planning and execution that were not properly recognized or controlled.
Long hours for one worker (who was not properly approved for the work),
a readily available six-foot A-frame ladder (which was too short for the
task), supervisors' unfamiliarity with the work to be performed, and
management statements to the workers that created a sense of urgency to
complete the job are all risks that were not adequately identified and
controlled.
On occasion, urgent work must be accomplished. However, the risks
associated with conducting any activity, regardless of urgency, must be
completely understood and controlled. Newly- created hazards must be
controlled in order to protect the workforce and the environment.
The Work Permit for this operation was reissued from a previous version.
Only one of the two workers assigned to perform the work was familiar
with the activity. The work was performed without the industrial safety
or industrial hygienist conducting a pre-job briefing or site walk-down
review. A proper task preview (which includes checking and selecting
appropriate PPE and equipment for the job), procedure adherence, pre-job
briefing, questioning attitudes, peer-checking and verification are
tools that could have prevented this event. Utilizing a 6-foot ladder
poses very little danger if the appropriate ladder type is selected for
the task, is used in the manner for which it is intended, and is used
following the guidelines for proper ladder use. /(Latent Organizational
Weakness)/
The newly-assigned responsible individual (RI) had not participated in
this operation before and the worker on the ladder had only witnessed
the operation once before, using a similar ladder in a similar way.
Also, the worker on the ladder was being "borrowed" from another
directorate. It was determined that both individuals lacked adequate
understanding of this particular evolution. The workers assumed that
this was the proper way to conduct this work. /(Latent Organizational
Weakness)//
/
Lack of knowledge; minimal turnover communication between the new RI and
the previous RI; the worker performing the task never having performed
it before (he only witnessed it previously and was the available person
most familiar with the equipment's operation); time pressure to complete
the work; inadequate work planning by failure to identify and control
all associated hazards; and lack of a questioning attitude by the
workers involved. /(Error Precursor) /
*Actions:*
-All workers should be properly trained and authorized to conduct
assigned work. Work control documents that contain "feedback and
improvement" sections should be reviewed more thoroughly when resuming
work to ensure that all hazards are controlled.
-If the work control process requires specific disciplines to be present
for pre-briefings, walk-downs, etc., then work should not commence until
they have had a chance to properly and thoroughly review the job.
-The proper equipment has to be utilized for the work. If the proper
equipment cannot be located, then work shall not proceed until it is
made available.
-Communication between management and workers needs to be clear and
concise. If work is planned to be completed in an urgent manner, then
all risks and hazards introduced by the urgency must be fully
identified, understood and controlled.
-Stop Work authority is a control available to all workers to prevent
mishaps. All workers must be vigilant in stopping work if there are
newly- recognized hazards that have not been properly controlled
--
Henry Robertson
DSO, Engineering Division
Safety Systems Group
PH# - 757.269.7285
FAX - 757.269.7352
http://www.jlab.org/accel/ssg/
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