What was found
AIRCRAFT WAS GROUNDED: CHECK DOOR PRESSURE 4L MESSAGE. REPLACED 4L DOOR ASSIST BOTTLE DIAPHRAGM PER AMM 52-10-00 AND ACCOMPLISHED A SATISFACTORY LEAK CHECK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: CHECK DOOR PRESSURE 4L MESSAGE. REPLACED 4L DOOR ASSIST BOTTLE DIAPHRAGM PER AMM 52-10-00 AND ACCOMPLISHED A SATISFACTORY LEAK CHECK.