| Case Name |
The fall from the top light |
| Pictograph |
|
| Date |
August 10, 2003 |
| Place |
Seki City, Gifu Prefecture |
| Location |
The top light |
| Overview |
During the installation of the light sealing at the top of the second floor roof, the glass broke, and a worker got injured. |
| Incident |
At around 16:48 on the 10th August, 2003, the victim who was carrying out the installation of the light sealing at the top of the second floor roof put his foot on the glass, and the glass broke, and he fell to the second floor, and hurt his head. |
| Sequence |
* The victim entered the field with another person, and he attended the lecture for the newcomers.
* The construction was scheduled to finish in two days, the 7th and the 8th.
* However, it was impossible to work due to an approaching typhoon on 8th August, and the rest of the work was carried out on the 10th again. On that day, the workers arrived at the field at 8 o'clock in the morning, the removal work and the spare work of the sealing was carried out according to the instructions of the field director. |
| Cause |
* There was no awareness of the danger that the top light might break (he removed the safety belt from the main rope carelessly and he moved).
* This work was on the running board, and it was impossible to move on the stage plank while wearing the safety belt.
* The instruction of the detailed procedure of the work on the top light was insufficient.
* The net to prevent falling was not installed. |
| Response |
* The running board was changed to the two sheets overlay.
* The horizontal net was stretched completely.
* It was surely compulsory to wear the safety belt.
* Though the top light check sheet installation had already been introduced for the new construction, the new one was made because there was no check sheet for the renewal construction. |
| Countermeasures |
* The work planning book should be prepared, and the construction method should be confirmed.
* Whether construction is carried out according to the work planning should be checked.
* It should be fully instructed that the top light is dangerous. |
| Knowledge Comment |
* A check should be carried out in the construction review meeting. |
| Background |
* The victim was a part-time worker, and he did not recognize the danger of the top light sufficiently.
* It was quite a small and short-term construction so the contract amount was 800 thousands yen and the construction period was one week, and it was a renewal construction which was carried out with letting the user of the building stay inside. |
| Sequel |
* The victim did not imagine that the top light would break. |
| Incidental Discussion |
* "Safety check sheet for the top light construction" of the renewal construction was made, and lateral spread of it was expected. |
| Reason for Adding to DB |
To avoid repeating the same mistakes. |
| Scenario |
| Primary Scenario
|
Misjudgment, Misperception, Ignorance, Insufficient Knowledge, Organizational Problems, Poor Management, Insufficient Analysis or Research, Insufficient Prior Research, Malicious Act, Rule Violation, Failure, Large-Scale Damage, Bodily Harm, Injury
|
|
| Sources |
A disaster case of our company
|
| Number of Deaths |
0 |
| Number of Injuries |
1 |
| Consequences |
There is nothing to be described. |
| Field |
Civil Engineering
|
| Author |
NONAKA, Tadashi (Japan Civil Engineering Contractors' Association)
|
