As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: : WHILE PERFORMING PERIODIC SERVICE TASK CARD 26C80012006 MAINTENANCE FOUND THE R2 DOOR DAMPER BOTTLE WAS LEAKING AND WOULD NOT HOLD AIR PRESSURE DUE TO THE INTERNAL DIAPHRAGM BEING RUPTURED, REPLACED DIAPHRAGM, SERVICED DAMPER AND ACCOMPLISHED A SATISFACTORY LEAK CHECK PER AMM 52-10-00-810-001