As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 1250 - THE NR 1 HYDRAULIC SYSTEM QUANITY AND PRESSURE WENT TO ZERO IMMEDIATELY AFTER FLAP RETRACTION AFTER TAKEOFF. CREW RETURNED TO CLT. MAINTENANCE REPLACED THE SUPPLY LINE ON THE LANDING GEAR SELECTOR VALVE. LEAK CHECKED GOOD. (W)