What was found
L1 DOOR UNSECURE, POPS UP IN FLIGHT AND WILL NOT LOCK BACK DOWN. RETURNED TO FIELD. ADJUSTED DOOR MECHANISM IAW AMM 52-11-00 & 52-11-13. PRESSURIZED ACFT HANDLE STAYED DOWN IN LOCKED POSITION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
L1 DOOR UNSECURE, POPS UP IN FLIGHT AND WILL NOT LOCK BACK DOWN. RETURNED TO FIELD. ADJUSTED DOOR MECHANISM IAW AMM 52-11-00 & 52-11-13. PRESSURIZED ACFT HANDLE STAYED DOWN IN LOCKED POSITION.