SnapRep: NS in Cabin 1722 where door A1 ~~~~~ SnapRep: NS in Cabin 1722 where door A1 is producing a loud screeching noise when ramping up its speed each time after it stops. Heading from the direction of Marina Bay towards Jurong. CE: No screeching noise found & all line flow fans ok. OE request 1722 A1 door operational check   UPD 25/08/22  1722 A1 door guide checked for any FOD - Not Found.    Weather strip condition checked - OK. Door external checked/found no scratch marks. Function test/found LHS door leaf noisy during opening/closing. Noise suspect coming from door roller. OPS 20 raised for door rollers c/o.  Au TK 44798 DOOR ROLLER C/O.  1722 A1 door rollers checked - OK. Cleaned J-rail. Function check & door cyclic test - OK.  Sugu/Lee PT/Shafie/Kamarul 44798