As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED NW RED ICON AND GEAR DISAGREE WARNING MSG ON T/O OUT OF DTW AROUND 180 KNOTS. LEFT ON FOR AT LEAST 1 MIN AND 30 SEC BEFORE GETTING TO ARM. MEL 29-12-01 STATES YOU MAY GET GEAR DISAGREE MSG FOR AT LEAST 20 SECS IS NORMAL. RAN QRM, CYCLED GEAR WITH HYD. READJUSTED NLG WOFFW SWITCH PS14GA IAW AMM 32-61-05, OPS CHECK GOOD.