As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED SERVICE DOOR CAUTION AFTER ROTATION. MESSAGE CLEARED ON ITS OWN. BOTH HANDLES VERIFIED STOWED, AND GREEN WITNESS MARKS WERE ALIGNED. AIRCRAFT REMOVED FROM SERVICE. VERIFIED SWITCHES IN CORRECT RIG, NO PSEU CODES. COULD NOT DUPILCATE. OPS CHECK GOOD. REMOVED PLACARD & FROM MEL