What was found
R1 DOOR DOES NOT CLOSE TIGHTLY. FWD SERVICE LIGHT ILLUMINATED WITH DOOR CLOSED. ACFT GROUNDED. FOUND THE R1 DOOR GUIDE ARM & HORIZONTAL ROD OUT OF ADJUSTMENT. ADJUSTED THE R1 DOOR GUIDE ARM & HORIZONTAL ROD. ALL OTHER ADJUSTMENTS CHECKED TO BE IN TOLERANCE. IAW AMM 52-41-00-820-801. ACCOMPLISHED R1 DOOR SYSTEM TEST AND TESTED GOOD IAW AMM 52-41-00-700-801. ACCOMPLISHED THE R1 DOOR SENSOR INDICATION TEST & TESTED GOOD. IAW AMM 52-71-11-710-801.