As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE MSG WHEN GEAR SELECTED DOWN GEAR CYCLED 3 TIMES COULD NOT GET DOWN & LOCKED. MANUALLY EXTENDED LANDING GEAR AND GOT DOWN & LOCKED WITH 3 GEAR WO 308909 ON APPROACH INTO DTW. C/W PA 05-018A FOUND PSEU CODE TO BE DI 20 DOWN NEAR, S35 DOWN NEAR S21 NEAR S22 DOWN NEAR DI 09 FAR DI 11 DOWN NEAR PERFORMED OP CHECK GEAR RETRACTION IAW AMM 32-30-00 OP CHECK GOOD. OK FOR SERVICE. THIS CLEAR WO 308909 COMPLIED WITH PA05-018A.