As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TEST FLIGHT LOST A-SYSTEM HYDRAULICS ON APPROACH BACK INTO JAX, DECLARED AN EMERGENCY AND LANDED WITHOUT FURTHER INCIDENT. LOST A-SYSTEM HYDRAULICS, ALL QUANTITY LOST ABNORMAL PROCEDURE COMPLETED HYD FLUID SHUT OFF VALVES CLOSE FOR ONLY 1.5 MINUTES (APPROX). REMOVED AND REPLACED ELEV FEEL COMPUTER IAW B727 MM 27-30-101. LEAK CHECK GOOD IAW B727 MM 27-30-0, OPS CK GOOD IAW B727 MM 27-30-101.