As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: R1 DOOR WILL NOT FULLY OPEN TO GUST LOCK POSITION. MAINTENANCE FOUND THE R1 DOOR R1 DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PRESSURE LOW, REPLACED THE R1 DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-11-01. A SATISFACTORY OPERATIONAL CHECK OF THE R1 DOOR WAS ACCOMPLISHED WITH NO ISSUES NOTED.