What was found
CAPTAIN REPORTED L2 DOOR OPENS ABOUT HALFWAY AND STOPS. ACFT GROUNDED. DISCONNECTED THE L2 DOOR SNUBBER FROM AIRCRAFT SIDE FOR TROUBLESHOOTING & DOOR STILL OPENS HALFWAY & STOPS. RECONNECTED DOOR SNUBBER TO AIRCRAFT FUSELAGE SIDE IAW AMM 52-13-51-400-801 STEP 3.E.(1)(E). ACCOMPLISHED AFT ENTRY DOOR LUBRICATION IAW AMM 12-25-12-640-801, L2 DOOR NOW OPERATES SMOOTHLY & DOES NOT STOP UPON OPENING, AIRCRAFT OK FOR CONTINUED SERVICE.