As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: L2 DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PRESSURE AT ZERO. MAINTENANCE TRIED TO SERVICE IT AND WOULD NOT HOLD PRESSURE, SUSPECT BAD SCHRADER VALVE. REPLACED SCHRADER VALVE AND SERVICED DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-22-00. A SATISFACTORY LEAK CHECK WAS ACCOMPLISHED WITH NO LEAKS NOTED.