As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF IN CLIMB HYDRAULIC QUANTITY INDICATION FOR NO SYSTEM DROPPED TO ZERO. QRH FOLLOWED RETURNED TO MSP WITH UNEVENTFUL LANDING. SYSTEM TESTED FOUND TO BE INDICATION ONLY DEFERRED UNDER MEL 29-32-01. DEFER CLEARED BY PERFORMING AMM TEST WITH NO FAULTS FOUND.