An air carrier MD80 crew had to return land when it could not raise its landing gear.

Attributes
ACN	352066
Time
Date	199611
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : dfw
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : initial ground : preflight other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	352066
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	352200
Events
Anomaly	non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	none taken : detected after the fact other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After takeoff we were unable to retract the landing gear. We completed the emergency procedure checklist with no success, and returned for a normal landing. Maintenance found the main landing gear bypass handle unlocked. The first officer had completed the origination preflight prior to the flight. He recalls seeing the bypass handle flush with the fuselage, so it did not attract his attention any further. The first officer does not recall specifically seeing if the lock was secured.

Original NASA ASRS Text

Title: AN ACR MD80 CREW HAD TO RETURN LAND WHEN IT COULD NOT RAISE ITS LNDG GEAR.

Narrative: AFTER TKOF WE WERE UNABLE TO RETRACT THE LNDG GEAR. WE COMPLETED THE EMER PROC CHKLIST WITH NO SUCCESS, AND RETURNED FOR A NORMAL LNDG. MAINT FOUND THE MAIN LNDG GEAR BYPASS HANDLE UNLOCKED. THE FO HAD COMPLETED THE ORIGINATION PREFLT PRIOR TO THE FLT. HE RECALLS SEEING THE BYPASS HANDLE FLUSH WITH THE FUSELAGE, SO IT DID NOT ATTRACT HIS ATTN ANY FURTHER. THE FO DOES NOT RECALL SPECIFICALLY SEEING IF THE LOCK WAS SECURED.

Data retrieved from NASA's ASRS site as of July 2007 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.