As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED HYD SYSTEM FLUID LOSS IN FLIGHT AND DIVERTED TO CLT. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED WITHOUT INCIDENT AT CLT. MAINTENANCE TROUBLESHOT AND RE-TORQUED B-NUT NEAR E-2 MANIFOLD PER EMB AMM, OPS CHECK GOOD. A/C WAS THEN RETURNED TO SERVICE.