Dear K. Thianrat
First of all, I am sorry that still I can't send the letter of FSC decrease.
Because, normally airlines don't make a letter by English in Korea. All letter of FSC is made by Korean language
not English. So, I have to ask to make it to airlines specially. It is little bit hard to get it from airlines.
Please refer attached FSC letter from airlines.
Thanks and best regards.
Regards.
James Byun