What was found
STRONG DRY ACRID SMELL IN COCKPIT, NOT NOTICEABLE IN CABIN, COMING FROM GASPERS WITH BLEEDS CLOSED AND APU RUNNING. (FLT 4559) CLEANED GLYCOL OFF ACM OUTLET PIPE, SMELL IS GONE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STRONG DRY ACRID SMELL IN COCKPIT, NOT NOTICEABLE IN CABIN, COMING FROM GASPERS WITH BLEEDS CLOSED AND APU RUNNING. (FLT 4559) CLEANED GLYCOL OFF ACM OUTLET PIPE, SMELL IS GONE.