What was found
DURING CLIMB OUT FROM IND EN ROUTE FOR PHX A LOUD SQUEAL DEVELOPED FROM THE FORWARD SIDE OF THE L-1 DOOR, DIVERTED TO CMH FOR REPAIR. MAINTENANCE FOUND THE L-1 DOOR LOWER HINGE COVER PINCHED AROUND DOOR SEAL. REMOVED HINGE COVER, PLACED ON CDL 52-10-1, COND. C-CHECK MAINTENANCE REPLACED L-1 DOOR LOWER HINGE COVER ASSEMBLY IAW BMM 52-11-00, PG. 401, LEAK CHECK WAS GOOD.