1552 reported saloon warm, temp 27.8. ~~~~~ CE feedback 1552 coolant pressure fault, temp 27.8.     #1552 a/c 1-1 found freon low-top to 4 kg 50psi. Function test a/c cooling 24 degC-ok. Also checked a/c 1-2, 2-1, 2-2 freon level ok. Both a/c able to cut in/out-ok. Done by Kamal/Ngieng. 15/02/20.