What was found
AIRCRAFT WAS GROUNDED: AT DOOR ARMING CIDS MESSAGE DOOR 4L CHECK PRESSURE. MAINTENANCE REPLACED 4L DOOR ASSIST BOTTLE PER AMM 52-13-14.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: AT DOOR ARMING CIDS MESSAGE DOOR 4L CHECK PRESSURE. MAINTENANCE REPLACED 4L DOOR ASSIST BOTTLE PER AMM 52-13-14.