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| Defect name | Corrective action | Preventive action |
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| Uncut thread | 1. This process is strictly maintained by the maintenance team with appropriate inspections | 1. All machines must be configured according to specifications and require accurate machine maintenance |
| 2. The machine wiper has previously been configured appropriately by this process maintenance crew | 2. The maintenance crew needs to thread-trim the working wipers |
| 3. The line leader and operator have already received advice regarding the thread trimming issue | 3. The leader should educate and teach the operator, and follow-up on accurate thread trimming should be ensured |
| 4. The thread trimming technique training system has already been started by the line leader | 4. The assistance operator should practice thread trimming in a clockwise direction |
| 5. Everyone who is trimming has already been counseled and cautioned about inappropriate trimming | 5. Because all of the trimmers have received training and are aware of the negative effects of bad trimming, they will all recover |
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| Broken stitch | 1. The complete machine has already been modified to account for the fabric’s characteristics and customer requests | 1. According to the fabric’s characteristics, all thread tension should be adjusted before manufacturing starts |
| 2. The marketing team has already had a conversation about the issue, and steps have been taken to secure a high-quality thread | 2. The marketing team should guarantee proper thread quality before reserving the thread |
| 3. We already maintain this web structure, and this work is ongoing | 3. Line QC should be done before production starts to make sure that all thread supply routes are working properly |
| 4. Operator training has already been used to put this into practice | 4. It is necessary to train the operator’s method before manufacturing can start |
| 5. After receiving training, the operator and section leader are now in charge of maintaining all procedures | 5. The section leader must offer proper follow-up and the operator or assistant must get training |
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| Down stitch | 1. Operator and machine upkeep before beginning the stitching, check the machine guide | 1. The machine guides need to receive the proper maintenance |
| 2. The repair crew has already acted by carrying out the buyer’s requests | 2. During the line layout time, all damaged components should be replaced if necessary, and the problem will then be fixed completely |
| 3. Instruct the maintenance crew to fix it by the need | 3. The machine maintenance staff does the necessary repairs |
| 4. The operator has already been instructed on how to do the process correctly | 4. The operator needs to be in a dense area |
| 5. The system for training operators about critical processes and how they recover has begun | 5. All operators must receive thorough training and instructions on how to perform their work obligations |
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| Joint stitch | 1. This is the continual process to which we are obligated | 1. Make use of good thread, a suitable needle, and a fid dock |
| 2. Recommend and start using this procedure; tightly control it | 2. After determining how many pieces may be sewn with one loaded bobbin case, the operator should replace it |
| 3. Machine upkeep has taken proper action to set up the machine properly with the appropriate follow-up | 3. The needle should be correctly adjusted during machine maintenance |
| 4. We instructed the operator on the trimming issue and gave them advice | 4. Awareness of the significance of meticulously cutting people’s threads and, if required, completely opening the process and restitching |
| 5. As this procedure is already underway, we encourage the operator to keep a constant eye on it | 5. Explain the alter-rectify process to the operator |
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