In addition, Heavy dirty black dust is observed on 6 fans in gallon filling room no.1. The same in empty gallon store, a lot of dust is observed inside.
Weekly cleanliness & housekeeping inspection checklist (GMP15-01, rev 0) on Dec 13 to present has never recorded any abnormal or not pass.
The same as above support equipment and machine, used in production process, are not defined cleaning program such as fans and air condition in filling line.