Lockout Tagout

OSHA issues $2M+ in Willful “Instance-by-Instance” citations @ metal stamper

OSHA used its “Instance-by-Instance” citation policy to issue $2,870,000 in Willful citations to a metal stamping business, which is now closed down. A total of 130 citations were issued. The breakdown of the citations is:… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...

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Why we NEVER give up the key(s) to our LOTO lock(s)

At approximately 6:30 a.m. on March 06, 2012, Employee #1 was prepping to perform maintenance on a pug mill. Employee one was involved in performing the job duty of replacing the ends of worn paddles with new ones at the time of the incident. Employee #1 began working on the collect auger and requested the…...

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Looks like OSHA will move forward with the REVISED LOTO standard

OSHA updated its agenda page and is saying it will publish an NPRM for the LOTO standard this December. Recent technological advancements that employ computer-based controls of hazardous energy (e.g., mechanical, electrical, pneumatic, chemical, and radiation) conflict with the Occupational Safety and Health Administration’s (OSHA) existing lock-out/tag-out (LOTO) standard. The use of these computer-based controls…...

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Relied on Robot Cage Door Interlock; Operator closed the door and started the robot, killing the maintenance tech

At 10:35 a.m. on December 2, 2024, Employee #1, 18, was performing maintenance on a sensor inside a robotic enclosure. As he entered the area, the robot was stopped by the entrance sensors. While he was cleaning the sensor, a coworker reset the machine from the control panel, unaware that Employee #1 was still inside…...

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Maintenance Tech By-Passes Guard Interlock – Machine Operator turned the machine from manual to auto and reactivated the machine, killing Tech ($145K)

At 11:00 a.m. on June 7, 2024, an employee, 50, working as a machinery maintenance technician for a frozen food manufacturer, was troubleshooting a ring remover since food trays were getting stuck. The employee bypassed the magnetic safety interlock gates and crawled underneath the conveyor. A coworker, the machine operator, was not aware that the…...

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Line Break Gone Bad (Cutting into live NH3 pipe)

This stunt has to be one of the riskiest I have seen in my 30+ years in Process Safety. They knew it was a live line, but why it was live is anyone’s guess. It looks as if this may be a “Demolition” job without a pump down, or maybe the plant was just down…...

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Worker Fatality During Attempted Removal of Blind Flange on Cooling Water System

On October 21, 2015, two mechanical technicians were involved in an incident while attempting to remove a blind flange from supply piping on a Magnet Cooling Water (MCW) System. The mechanical technicians were assisting a welder in obtaining final measurements to make the final connections from the MCW system to a new Cell 14 cryostat…...

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Butterfly valve(s) & energy isolation (NH3 process)

Some industries’ RAGAGEPs will call out the risk of using a butterfly valve as an energy isolation device due to its propensity to “leak by”. In this incident, the valve catastrophically failed, releasing NH3, resulting in a worker and a contractor being hospitalized. I do not know if the valve was locked out, but that…...

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LOTO Fatality – Belt Conveyor (MSHA)

On March 5, 2025, at 10:55 a.m., a welder, 57, with over seven (7) years of mining experience, died when he became entangled in a belt conveyor tail roller. The accident occurred because the mine operator did not de-energize and block the No. 12 belt conveyor against hazardous motion. GENERAL INFORMATION The mine is a…...

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A “lockable” automated valve

Recently, we had the never-ending debate about locking out valves being used as energy isolation devices. Somewhere/Sometime ago, a vicious rumor/practice found some legs, and we began seeing the practice during our audits. The unsafe and non-OSHA-compliant practice of disconnecting the power source from a Fail-Safe Closed valve and locking out the valve’s power source…...

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Why NH3 must be evacuated to “reclassify” a Condenser from a PRCS to a NON-PRCS

I have debated this many times and finally just gave up on the industry to do the right thing. And yes, there is a line item in NFPA 350, that I have requested the NFPA to address. But for me, in all my years, we would evacuate the NH3 from the condenser coils and lock…...

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Zero equals Zero, not 0.27 psig

A 25,000-gallon tank used to store nitrogen or carbon dioxide at 250 psig needed maintenance that required the removal of a four-foot diameter, 500 lb manhole cover. The tank was evacuated to 0 psig using the manually operated relief valve. Once the workers no longer heard air flowing through the valve, they released the stick…...

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