As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4562 - LGA - AFTER TAKEOFF, THE CREW REPORTED THE MAIN HYDRAULIC SYSTEM WARNING LIGHT ILLUMINATED ALONG WITH LOW PRESSURE AND QTY. CREW FOLLOWED PROCEDURES AND RETURNED TO LGA. MAINTENANCE FOUND HYDRAULIC LINE SWIVEL GOING TO RIGHT MAIN GEAR DOWN LOCK LEAKING. SWIVEL WAS REPLACED AND AIRCRAFT RETURNED TO SERVICE. (M)