As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE DOOR OPEN AND GEAR DISAGREE WARNING WHEN GEAR WAS RETRACTED AFTER DEPARTURE PERFORMED QRH (AIR RETURN). C/W PA05-018A BY R/R NLG PRIORITY VALVE RECORDING CODES AND PERFORMING NLG AND MLG SWINGING, SEE CORRECTIVE ACTION AML 600469 BLOCK NR 1, A/C OK FOR SERVICE.