Crew had difficulty retracting left main gear after takeoff. Problem fixed itself in a few seconds.

Attributes
ACN	226046
Time
Date	199211
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iah
State Reference	TX
Altitude	agl bound lower : 500 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : iah
Operator	common carrier : air carrier
Make Model Name	Light Transport, High Wing, 2 Turboprop Eng
Navigation In Use	Other Other
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 3300 flight time type : 180
ASRS Report	226046
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	aircraft : equipment problem dissipated other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After takeoff from iah, the left main landing gear failed to fully retract. This was noticed by a gear red light on panel. As speed increased, noise and vibration resulted. After about 10 to 15 seconds the red light extinguished and the noise and vibration stopped. We asked tower to return. The gear extended normally (3 green on 2 independent panels). We landed at iah safely and without incident. Callback conversation with reporter revealed the following information: reporter is unaware of what caused the gear problem. He said that the aircraft has had no history of any gear problems that he is aware of.

Original NASA ASRS Text

Title: CREW HAD DIFFICULTY RETRACTING L MAIN GEAR AFTER TKOF. PROBLEM FIXED ITSELF IN A FEW SECONDS.

Narrative: AFTER TKOF FROM IAH, THE L MAIN LNDG GEAR FAILED TO FULLY RETRACT. THIS WAS NOTICED BY A GEAR RED LIGHT ON PANEL. AS SPD INCREASED, NOISE AND VIBRATION RESULTED. AFTER ABOUT 10 TO 15 SECONDS THE RED LIGHT EXTINGUISHED AND THE NOISE AND VIBRATION STOPPED. WE ASKED TWR TO RETURN. THE GEAR EXTENDED NORMALLY (3 GREEN ON 2 INDEPENDENT PANELS). WE LANDED AT IAH SAFELY AND WITHOUT INCIDENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR IS UNAWARE OF WHAT CAUSED THE GEAR PROBLEM. HE SAID THAT THE ACFT HAS HAD NO HISTORY OF ANY GEAR PROBLEMS THAT HE IS AWARE OF.

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.