Narrative:

During taxi to runway for takeoff; nothing unusual or any problems with the nosewheel steering were observed. Taxi route was ramp; exit J5; left on taxiway J; right on taxiway F; left on taxiway K; runway 27. Lots of different turns. During the takeoff; the first officer was hitting the runway centerline lights but moved over to the right of centerline to avoid hitting them. No indications present. After liftoff and gear selected 'up;' we received master warning 'nose door open; gear disagreement' master caution 'weight on wheels input; nosewheel steering' status message 'weight on wheels output fail.' first officer took control of the radios while I ran the QRH procedure for nose door open 13-9 which called for the gear to be selected down. This cleared all master warnings and I got 3 green gear down and locked. Continued with the checklist and talked to maintenance control; dispatch; first officer; flight attendant; passenger and ATC. Checklist complete. Vectored onto runway localizer runway 18R. Cleared for visual approach because gear was down and locked. I did not declare an emergency and a normal landing was made. When turning the nosewheel; steering failed and after talking to maintenance control; taxied to spot on taxiway east to ramp. Ramp agent met us with a tug and tow bar. Agent noticed scissors were not connected and reconnected the scissors. I then taxied to gate where I was met by mechanics. Deplaned the aircraft. Talked to the mechanics. No damage found. Apparently sometime during the takeoff run; the scissors had become disconnected which caused the return to the airport.

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Original NASA ASRS Text

Title: A CL65 ON TKOF CLB AT 2000 FT DIVERTED DUE TO MASTER WARNING 'NOSE DOOR OPEN' AND 'GEAR DISAGREEMENT.' LANDED WITH NO NOSE GEAR STEERING. FOUND NOSE GEAR SCISSORS DISCONNECTED.

Narrative: DURING TAXI TO RWY FOR TKOF; NOTHING UNUSUAL OR ANY PROBS WITH THE NOSEWHEEL STEERING WERE OBSERVED. TAXI RTE WAS RAMP; EXIT J5; L ON TXWY J; R ON TXWY F; L ON TXWY K; RWY 27. LOTS OF DIFFERENT TURNS. DURING THE TKOF; THE FO WAS HITTING THE RWY CTRLINE LIGHTS BUT MOVED OVER TO THE R OF CTRLINE TO AVOID HITTING THEM. NO INDICATIONS PRESENT. AFTER LIFTOFF AND GEAR SELECTED 'UP;' WE RECEIVED MASTER WARNING 'NOSE DOOR OPEN; GEAR DISAGREEMENT' MASTER CAUTION 'WT ON WHEELS INPUT; NOSEWHEEL STEERING' STATUS MESSAGE 'WT ON WHEELS OUTPUT FAIL.' FO TOOK CTL OF THE RADIOS WHILE I RAN THE QRH PROC FOR NOSE DOOR OPEN 13-9 WHICH CALLED FOR THE GEAR TO BE SELECTED DOWN. THIS CLRED ALL MASTER WARNINGS AND I GOT 3 GREEN GEAR DOWN AND LOCKED. CONTINUED WITH THE CHKLIST AND TALKED TO MAINT CTL; DISPATCH; FO; FLT ATTENDANT; PAX AND ATC. CHKLIST COMPLETE. VECTORED ONTO RWY LOC RWY 18R. CLRED FOR VISUAL APCH BECAUSE GEAR WAS DOWN AND LOCKED. I DID NOT DECLARE AN EMER AND A NORMAL LNDG WAS MADE. WHEN TURNING THE NOSEWHEEL; STEERING FAILED AND AFTER TALKING TO MAINT CTL; TAXIED TO SPOT ON TXWY E TO RAMP. RAMP AGENT MET US WITH A TUG AND TOW BAR. AGENT NOTICED SCISSORS WERE NOT CONNECTED AND RECONNECTED THE SCISSORS. I THEN TAXIED TO GATE WHERE I WAS MET BY MECHS. DEPLANED THE ACFT. TALKED TO THE MECHS. NO DAMAGE FOUND. APPARENTLY SOMETIME DURING THE TKOF RUN; THE SCISSORS HAD BECOME DISCONNECTED WHICH CAUSED THE RETURN TO THE ARPT.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.