A crj-700 flight crew declared an emergency and returned to their departure airport when they were u...

Narrative:

Everything was normal on the taxi out and takeoff until I asked for gear up. We received a gear disagree aural warning and the gear indicators showed the left and right main gear retracted with the nose gear still down. The captain recycled the gear lever; gear all lowered and the gear indicators were all green. He then selected gear back up; this time the nose and left main gear retracted but the right main gear would not retract; and it kept going up and down. The captain asked for vectors back to the airport and then ran the QRH checklist following which we left the gear down. All three gear safe lights were green. The captain took the controls after coordinating with dispatch and operations on the ground that we were returning to [our departure airport]. The captain declared an emergency so that the trucks would be standing by in case of any malfunctions on landing. The landing was normal and we taxied to the gate where maintenance took the plane from us. In hindsight it probably would have been a better idea to have just left the gear down the first time we received the gear disagree message and have headed back to [our departure airport]and not have run the QRH.

Original NASA ASRS Text

Title: A CRJ-700 flight crew declared an emergency and returned to their departure airport when they were unable to retract all three landing gear after takeoff.

Narrative: Everything was normal on the taxi out and takeoff until I asked for gear up. We received a Gear Disagree aural warning and the gear indicators showed the left and right main gear retracted with the nose gear still down. The Captain recycled the gear lever; gear all lowered and the gear indicators were all green. He then selected gear back up; this time the nose and left main gear retracted but the right main gear would not retract; and it kept going up and down. The Captain asked for vectors back to the airport and then ran the QRH checklist following which we left the gear down. All three gear safe lights were green. The Captain took the controls after coordinating with Dispatch and Operations on the ground that we were returning to [our departure airport]. The Captain declared an emergency so that the trucks would be standing by in case of any malfunctions on landing. The landing was normal and we taxied to the gate where Maintenance took the plane from us. In hindsight it probably would have been a better idea to have just left the gear down the first time we received the Gear Disagree message and have headed back to [our departure airport]and not have run the QRH.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1071096
Time
Date	201303
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Gear Extend/Retract Mechanism
Person 1
Function	Pilot Flying First Officer
Person 2
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

A crj-700 flight crew declared an emergency and returned to their departure airport when they were unable to retract all three landing gear after takeoff.