As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ISSUE; PILOT REPORTED AT ABOUT 27000 FEET ON CLIMB, WE GOT SERVICE DOOR OPEN MESSAGE. DOOR ALIGNMENT MARKS DIDN’T ALIGN, PRESSURIZATION HELD. MADE PRECAUTIONARY DIVERSION INTO KOKC. CORR ACTION; MX PERFORMED SERVICE-DOOR WARNING MICROSWITCHES - ADJUSTMENT/TEST OPS TEST GOOD.