Dear Putthipat-san,
First of all, thank you very much for issuing this PQR.
Because we could not confirm frequent report of similar failure from the field, we presume that this is a rare case, and we would like to continue monitoring the field situation.
If you meet similar failure, please issue new PQR/QRS and check the PDI record / maintenance history of related fuel pipes.
Thank you very much for your cooperation in this case.
Best regards,