As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE DOOR OPEN WARNING MESSAGE RIGHT AFTER GEAR RETRACTION. FLIGHT 3044-FILE CLOSED. TROUBLESHOT MDC AIRCRAFT FLAGGING PX30 AND PX31 B1-007269 AND B1-007721. INSPECTED PROXIMITY SENSORS AND FOUND THEM TO BE OUT OF RIG. ADJUSTED PX30 AND PX31, PER CRJ 700 AMM. PERFORMED SENSOR RANGE CHECK, PER CRJ 700 AMM 31-61-00. SENSORS READING VALID NEAR PX30 AT 70 PX31 AT 65 SENSOR RANGE, PER MDC IS 20-80.