As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"CABIN ALT" MESSAGE AND LIGHTS AT FL 390 30 MIN AFTER "L EMER DOORS" MESSAGE. QRH COMPLIED DESCENT TO 10,000 FT, AT AROUND 11,000 FT BOTH MESSAGES EXTINGUISHED. DECLARDED EMERGENCY/DIVERT TO ICT. FOUND LOWER FORWARD ADJUSTING STOP PIN OUT OF RIG. ADJUSTED PIN, DID CABIN ALTITUDE PRESSURE CHECK W/REF TO B757 MM 52-21-01-5. OPERATIONS CHECK GOOD. AC OK TO CONTINUE.