B737 crew cannot raise the gear after takeoff; declare an emergency; and return to departure airport...

Attributes
ACN	703511
Time
Date	200607
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	703511
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : landed in emergency condition flight crew : landed as precaution flight crew : diverted to another airport flight crew : declared emergency
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

We were cleared for takeoff. Everything was operations normal. At liftoff; I call out positive rate gear up. The gear wouldn't retract. We checked in with departure control and asked if we could fly straight out to work on a problem. The captain did the appropriate checklists and was still unable to get the gear to retract. Also; the autothrottles; autoplt; autobrakes would not engage. The captain coordination our return back to ZZZ to land. We declared an emergency due to an overweight landing. We had the equipment standing by. We did a flaps 40 degree landing. We used minimal brakes.

Original NASA ASRS Text

Title: B737 CREW CANNOT RAISE THE GEAR AFTER TKOF; DECLARE AN EMER; AND RETURN TO DEP ARPT.

Narrative: WE WERE CLRED FOR TKOF. EVERYTHING WAS OPS NORMAL. AT LIFTOFF; I CALL OUT POSITIVE RATE GEAR UP. THE GEAR WOULDN'T RETRACT. WE CHKED IN WITH DEP CTL AND ASKED IF WE COULD FLY STRAIGHT OUT TO WORK ON A PROB. THE CAPT DID THE APPROPRIATE CHKLISTS AND WAS STILL UNABLE TO GET THE GEAR TO RETRACT. ALSO; THE AUTOTHROTTLES; AUTOPLT; AUTOBRAKES WOULD NOT ENGAGE. THE CAPT COORD OUR RETURN BACK TO ZZZ TO LAND. WE DECLARED AN EMER DUE TO AN OVERWT LNDG. WE HAD THE EQUIP STANDING BY. WE DID A FLAPS 40 DEG LNDG. WE USED MINIMAL BRAKES.

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.