What was found
CREW REPORTED R1 DOOR DIFFICULT TO DISARM. ON ARRIVAL AT A/C, FOUND DOOR OPENED & GIRT BAR HANGING UNDER DOOR. DURING TROUBLESHOOTING OF DOOR ARM/DISARM SYSTEM, FOUND GIRT BAR RETAINING CLIPS MISSING FROM GIRT EXTENSION. ALLOWING GIRT BAR TO MIGRATE IN THE SLIDE. INSTALLED GIRT BAR RETAINING CLIPS IAW AMM 25-61-21-04. SLIDE GIRT BAR IS OUT POSITION WITH CLIPS. REINSTALLED GIRT BAR, EMERGENCY ESCAPE SLIDE & REPOSTIONED GIRT BAR, SLIDE CLIPS & LUBED GIRT BAR ENGAGE SLIDERS & FLOOR FITTINGS. ALSO REMOVED & STOWED TRANSPORT SAFETY PIN IAW WRI 25-60-4781. OPS CHECKS NORMAL IAW AMM 25-61-21-04.