What was found
AT APPROX 17,000FT, MAIN CABIN DOOR EICAS MESSAGE APPEARED, DESCENDED TO 10,000 AND DOOR LIGHT AND EICAS MESSAGE EXTINGUISHED. PRESSURIZATION NORMAL THROUGH ENTIRE FLIGHT. REPLACED ROLL PIN ON L1 DOOR PROXIMITY TARGET ARM ON GUIDE RAMP IAW AMM 53-10-21. OPS CHECKED GOOD.