Preventing fading of 1 safety Tips for accident prevention ......safety Tips for accident prevention...

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1Preventing fading of

safety awarenessTips for accident prevention

Falls and collisions

Direct cause

Background

The worker did not set a safety cone for protection when temporarily leaving the opening work area unattended.

Safety awareness had decreased due to the repetitive and familiar nature of the work.

Retrain workers on safety protection rules.Increase awareness of the need for safety protection.Provide daily monitoring by a third party (such as a supervisor).

Fall into a grating opening

Set safety protection (barricade) at grating openings.

Preventive measure


2

The worker was walking between the devices without taking a regular route.The worker’s foot was caught on the distribution cable between the devices.

The worker felt impatient because of overlapping urgent work.The worker was able to pass over the distribution cable between the devices.The distribution cable between the devices was not covered.

Install covers on piping and wiring between devices.Set detour routes and prohibit passage between devices.

Tripping over distribution cable between devices

Cordon off hazardous routes.

Trips and falls

Direct cause

Background

Preventing fading of


Preventive measure


3

The work was being performed under the conveyor operation panel.A warning sign could not be attached because the operation panel was portable.

There were things near the conveyor and the space was limited. Risks were identified, but equipment risks were not identified.

Review the work standards and provide training about the changes.Fix the operation panel in place and attach a warning sign.Attach covers to prevent injury at the corners of the operation panel.

Head struck onto conveyor operation panel

Protect or mark the place where workers may come into contact.

Collisions

Direct cause

Background

Preventive measure




4

The worker’s arm contacted the cover during the work.The condition of the cover stopper was not checked.

There was a need to urgently clean up, and the worker became impatient.The cover stopper did not function due to its deteriorated condition.

Add a procedure to check the condition of the stopper to the work item list.Specify the stopper as a regular replacement part.

Arm trapped by a falling device cover

Work with an awareness of the hazard of the cover falling.

Caught in equipment

Direct cause

Background

Preventive measure




5Exposure to laser light during training

The laser light was transmitted without being passed through a light attenuation filter.

The worker thought that there were no similar accidents and there would be no problems when doing the work.There was no work procedure manual and there was no training provided.Checking of safety was not done by those at the site.

Prepare a manual for equipment structure training.Wear safety glasses while a laser is in operation.

Exposure to hazardous substances

Wear special personal protective equipment in the controlled areas.

Direct cause

Background



Preventive measure


6

The structure was such that the shielding plate could be easily detached by a third party.The worker did not check whether the shielding plate was removed.

The workers began working without contacting the customer.There were no work rules for removing the shielding plate.

Enforce the use of LOTO when using shielding plates.Create work rules for shielding plates and train the workers.

Struck by overhead hoist transport (OHT) during wiring work

Enforce the use of lockout/tagout (LOTO).

Collisions

Direct cause

Background



Preventive measure


7

A third party accidentally touched the equipment being loaded in.A hinge popped out after the entrance door was removed.

The division of roles of the load-in workers was not clear.The work was performed without checking for hazards in the load-in route.

Perform the work with the roles and responsibilities of team members clearly defined in advance.Check in advance for hazards along the move in route, and clearly define the work procedure.

Hand caught when loading in equipment

Work with a clear division of roles.

Caught in equipment

Direct cause

Background



Preventive measure


8

The worker’s finger touched a sharp part (a projection).

The worker did not know that sharp parts were in use.The work procedure manual did not have a description of the risk.

Inform workers of the work risks before they perform the work.Perform the work with a simple cover over any sharp parts.

Finger cut by sharp parts

Be informed about risks when working.

Cuts and abrasions

Direct cause

Background



Preventive measure


9

The worker was applying too much force to the hex wrench.The worker was turning the hex wrench toward his face.

The task was a familiar one, and the worker performed it without thinking of any hazard.

Provide training on hand tool risks.Train workers on the proper posture when using hand tools.

Injury to eye caused by hex wrench flying off

Struck by flying or falling object

There are many accidents caused by hand tools. Be careful when using them.

Direct cause

Background



Preventive measure


10

One exhaust damper was closed.Only one of the two dampers was checked.The worker did not know there were two dampers.

Another worker closed one of the two dampers.No differential pressure gauge was installed.

Install a differential pressure gauge.Add a procedure to the pre-work check list to check the condition of all dampers.

Inhalation of hydrofluoric acid vapor during drafter work

Check the exhaust conditions before starting the work.


Direct cause

Background



Preventive measure


11

The work was being performed without checking the state of energy sources.The worker was not wearing personal protective equipment.

There was a lack of hazardous energy training including the danger of the work.The worker wanted to minimize the equipment downtime.

Train workers on how to shut down and check the state of energy sources.Prepare and wear appropriate personal protective equipment.

Short circuit and electric shock during energized electrical work

Use circuit testers to detect voltage and check for safety before working.

Electric shock

Direct cause

Background



Preventive measure


12

The work was being performed without checking the contents of the collection container.

There was no work standard for waste liquid treatment.The classification of the waste liquid collection container was difficult to be identified.

Change the color and shape of the waste liquid collection container so that it can be easily checked / identified.Prepare and implement a work standard for waste liquid collection.

Exposure to waste liquid caused by container breakage when disposing waste liquid

Check the contents before disposing of chemicals.


Direct cause

Background



Preventive measure


13

Nitrogen gas escape caused by lack of stopcock

Gas was being allowed to flow to an opened gas pipe because a stopcock was not installed.The state of the piping had not been checked before supplying the gas.

One device was used by multiple workers.Workers had not informed the others that the gas piping was modified.

Be sure to install a stopcock at the end of the gas line.Use a checklist to check the condition of the gas line before supplying the gas.


Hold a meeting with all workers before starting the work.

Direct cause

Background



Preventive measure


14

The worker was repetitively moving heavy objects (20 kg).The worker was continually lifting using the wrong posture (mid-back).

No measures had been taken to prevent lower back injury when lifting heavy objects.Training for heavy material handling was inadequate.

Use a cargo handling device such as a hand lifter to carry heavy objects.Provide training on heavy material handling work.

Low back injury caused by repetitive heavy lifting work

Do not try to carry heavy objects manually.

Repetitive movements, overexertion

Direct cause

Background



Preventive measure


15

The worker had not decelerated the moving parts when adjusting them.The worker was not using a jig for adjusting the thrust.

The worker had given priority to shorten the work time.There was no manual for adjusting moving parts.

Enforce the use of a jig to fully reduce the thrust during maintenance of moving parts.Prepare a procedure manual for adjusting moving parts and provide training on using the procedure manual.

Finger pinched when adjusting a moving part

Always take safety measures when approaching moving parts.

Caught in equipment

Direct cause

Background



Preventive measure


16

The worker was working at a height with both hands occupied.The worker was working on the top of the stepladder.

The work had been performed without a monitoring supervisor.The worker was not using use a safety belt.

Assign a supervisor to monitor the work and identify any unsafe activity.Retrain workers in the basic rules for using a stepladder.

Fall from a stepladder when working at a height

Enforce compliance with the rules when working at heights.


Direct cause

Background



Preventive measure


17

The worker did not go through a regular passage.The worker tripped over protruding parts between the devices.

The walking route was not clearly identified.The worker had free access to the space between the devices.

Specify the walking route around the devices.Prevent passage through the space between devices.

Fall while walking with a wafer cassette in both hands

Decide on the walking route. Cordon off any routes that are not passable.

Trips and falls

Direct cause

Background



Preventive measure


18

The worker was putting his hand within the moving range of the robot while the interlock was released.

There had never been an accident before, so the worker did not aware of the possible hazard.The protective cover was not attached because the worker was in the middle of doing the work.

Enforce workers not to put hands within the moving part range of the robot while the interlock is released.Be sure to attach the protective cover when operating the robot, even while working on it.

Finger cut when touching an industrial robot

Caught in equipment

Do not touch moving parts.

Direct cause

Background



Preventive measure


19

A long and heavy object was being lifted using a single-wire suspension.No padding was applied where the edges of the heavy object came in contact with the wire.Part of a worker’s body was under the suspended heavy object.

The worker thought that the work could be done faster if only a single wire was used to suspend the load.The worker did not consider the possibility of the wire breakage.

Be sure to put padding on the sharp edges of suspended loads that contact with the wire sling.Enforce workers not to go under heavy loads.Retrain workers in slinging methods.

Heavy object fall caused by wire breakage

Never go under a suspended load.

Collisions

Direct cause

Background



Preventive measure


20

The status of the interlock had not been checked and confirmed in manual mode. A worker’s body part was within the moving path of the transfer vehicle.

The interlock method was complicated because the loader moved between the devices of multiple companies.

Reinforce the rules for working in manual mode.Urge the reliable implementation of LOTO and use of the interlock.

Automatic transfer robot ran out of control during maintenance

Be sure to implement lockout/tagout (LOTO).

Collisions

Direct cause

Background



Preventive measure


21

The worker was putting a hand under the device without having checked its condition.The device was not fixed in place.

The work had been performed without hazard prediction training.The workers gave priority to proceed with the work, and did the work without discussing it with a supervisor.

Make sure to have a supervisor present when doing the work.Make sure that all the workers are informed of the risks involved before starting the work.

Finger pinched in the adjuster bolt

Make sure to speak clearly to each other when doing a task by multiple workers.

Caught in equipment

Direct cause

Background



Preventive measure


22

The worker was handling the utility knife with an unsafe posture.The worker was applying too much force when using the utility knife.

The procedure for cutting had not been clearly determined.A utility knife had been used to cut things regularly.

Decide on an appropriate procedure for cutting and work according to those rules.Prepare a work procedure manual.

Knee cut by a utility knife

Train workers on the correct use of utility knives.

Cuts and abrasions

Direct cause

Background



Preventive measure


23

The worker stood up without paying attention to the object that was above.The worker was focused on picking up screws that were dropped.

The panel automatically opened when the panel fixing screw was removed.There were no rules for wearing a helmet during maintenance.

Change the structure of the panel so that it stays closed when the screws are removed.Require workers to wear a helmet during maintenance.

Head hit onto side door of device

Enforce wearing of a helmet during maintenance.

Collisions

Direct cause

Background



Preventive measure


24

The worker was removing the joint without having checked the state of the pressure.The worker was not wearing personal protective equipment.

There was no work procedure manual for removing the joint.The worker thought that the piping contained only water and no personal protective equipment was needed.

Enforce the rules for wearing personal protective equipment.Prepare work procedures and train the relevant workers.Inform workers of work rules and risks during tool box meetings (TBM).

Exposure to pressurized hydrofluoric acid chemical solution

Always check for residual pressure before removing piping.


Direct cause

Background



Preventive measure


25

The worker was wearing gloves while using a rotating power tool.

The worker was using a power tool rotating at a high speed with a higher torque stronger than necessary.The worker thought that work time could be shortened by using a power tool.

Prohibit workers from wearing gloves while using rotating power tools.

Glove got caught when using power tool

Caught in equipment

Do not wear personal protective equipment when using rotating power tools.

Direct cause

Background



Preventive measure


26

The worker was holding a lock lever when carrying an abatement tank container.

The worker had not expected the lock lever to come off so easily.The worker had thought that there would be no problem even if the lock came off.

Change the lid of the abatement tank container from a lock lever type to a bolted type.Attach a warning sticker to indicate that the abatement container may be pressurized.

Exposure to chemicals while moving a small abatement container

Check where to hold an object before trying to carry it.


Direct cause

Background



Preventive measure


27

The worker was energizing the unit without having checked whether the terminal bolts were tightened.Contact resistance caused by terminal looseness generated heat.

The nut tightening torque had not been determined and was not being controlled.The nut tightening procedure had not been determined.

Write the specified torque for nut tightening into the work procedure manual and enforce workers to check the tightening status.Prepare rules for applying blue ink after tightening to enable a visual check of the status.

Ignition in control unit caused by inadequate bolt tightening

Ensure proper control of tightening torque in terminals.

Contact with hot or cold objects

Direct cause

Background



Preventive measure


28

The worker was overexerting while using a poor working posture.

The worker had felt pain in the lower back during the work, butignored it.The worker had felt confident about not getting injured because the object weighed only 7 kg.

Stop working immediately and speak to a foreman whenever you have any physical difficulties.Add a back injury prevention procedure to the procedure manual to prevent a recurrence of the accident.

Low back injury due to poor working posture

Do not work using poor posture.

Repetitive movements, overexertion

Direct cause

Background



Preventive measure


29

The workers began working without checking the status.The worker was not wearing safety shoes.

Since the casters had not been locked, the cart started moving easily.There were no rules regarding the storage or transport of heavy objects.

Enforce locking of casters before workers leave a cart with casters unattended.Prepare a procedure manual for storage and transport of heavy objects, and train the workers to follow the procedure manual.

Foot caught under a caster when loading in a tool

Do not stand in the path of moving casters.

Caught by equipment

Direct cause

Background



Preventive measure


30

The work location was difficult for the worker to check.The worker was using poor posture while working.

The worker had not thought there was any risk in the work location.

Regularly train workers on the structure of the device including any hazardous parts.Regularly train workers about accidents and maintain / increase the safety awareness of workers about accidents.

Finger cut during device disassembly work

Assume a risk when working in locations that are difficult to see.

Cuts and abrasions

Direct cause

Background



Preventive measure


31Exposure to chemical solution caused by incorrect removal of piping

The worker was removing a different pipe than the one described in the instructions.The worker was removing the pipe without having checked the residual pressure.

The work instructions were unclear.

Change the instructions to an easy-to-understand format using illustrations.Have multiple workers check the pipe to be removed and mark it before starting the work.


Double-check the work to be done.

Direct cause

Background



Preventive measure


32

Cheek injured by metal fitting falling from a height

The workers began working without laying down a safety net to prevent objects from falling down below.The workers were working above and below each other in the same space.

The workers had not complied with the safety manual for work performed at a height.

Reinforce use of the safety manual for on-site construction

Struck by flying or falling object

Reinforce use of the safety manual.

Direct cause

Background



Preventive measure


33Oxygen deficiency caused by Dewar vessel falling during transport of liquid nitrogen

The worker was not using a special-purpose transport cart.The worker was riding the elevator together with the Dewar vessels.

Safety awareness had decreased due to the repetitive and familiar nature of the work.The worker had not expected a Dewar vessel to fall off the cart.


Transport Dewar vessels on special-purpose carts.

Enforce the use of special-purpose transport carts.Retrain workers on rules for handling liquid nitrogen.

Direct cause

Background



Preventive measure


34Gas cylinder fell over and was damaged during transport

The worker’s hand slipped during transport.The worker had left a tool box in the middle of the aisle.

Safety training had not been provided.The worker had not been using a special-purpose transport cart.

Rupture of cylinder

Transport gas cylinders on special-purpose carts.

Enforce the use of special-purpose transport carts.Retrain workers on the rules for handling gas cylinders and organizing workplaces.

Direct cause

Background



Preventive measure


35Gas leakage from abatement equipment due to poor work

Direct cause

After the exhaust gas abatement equipment was replaced, gas flowed from a leak at the pipe connection, causing a gas leak that the gas detector reported.

The O-ring on the connection flange was distorted.The airtightness of the connection was not checked before the equipment was used again.

After replacing the exhaust gas abatement equipment and before flowing the gas, check the state of the gas line, including checking the airtightness.


Be sure to check the operation in a maintained area!



Background

Preventive measure


36

An operator noticed an abnormal noise and carelessly put a hand into the transport section inside the device.At the same time, another worker also noticed the abnormal noise and closed the transport unit shutter.

The procedures for investigating equipment trouble differed among the workers.The work was not stopped when an abnormal noise occurred.

First stop working before checking any equipment trouble.Communicate closely with co-workers.

When trouble occurs, first stop working! Don't panic.

Caught in equipment

Fingers of a co-worker got caught when an equipment trouble was being investigated

Direct cause

Background

Preventive measure




37

The container with the chemical solution tipped over.Appropriate protective equipment was not being used.

The chemical solution bottle was unstable.Since the working posture was not decided and the angle of the arm differed depending on the worker, the liquid splashed out of the range protected by the protective equipment.

Stabilize the chemical solution bottle by creating a fixed container for the bottle. Review protective equipment and the work procedure manual, and perform the work using an appropriate work posture.

Hydrofluoric acid splashed during work on the drafter


Use proper protective equipment!



Direct cause

Background

Preventive measure


The worker tried to lock the tube cutter because the blade was still sticking out, but a finger touched the blade.

The tube cutter was stored in the tool tray with its blade sticking out. The work procedure manual lacked a description of the risk.

Review the work procedure manual to keep the blade properly stored when not in use.Use a case that prevents the tube cutter from being stored if its blade is not properly stored.

Finger cut by tube cutter blade

Cuts and abrasions

Close the tube cutter before storing it in the toolbox.

38Preventing fading of


Direct cause

Background

Preventive measure


39


When on a work platform, the worker didn't check the position of the steps and only assumed where the steps were when trying to get off the platform.

The steps were rotated 90 degrees while the work was being done. The worker was unclear about where the steps were located.

Use a platform with handrails on the steps.Assign someone as a guard to keep watch when any worker goes up or down the steps.Clarify the location of the steps in the work procedure manual.

Falling from a work platform

Check the position of the steps before getting off.



Direct cause

Background

Preventive measure

Preventing fading of 1 safety Tips for accident prevention ......safety Tips for accident prevention...

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