B757-200 landed with flaps twenty following receipt of a flap asymmetry warning while in cruise.

Attributes
ACN	830116
Time
Date	200904
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Flap Control (Trailing & Leading Edge)
Person 1
Function	Pilot Flying
Experience	Flight Crew Last 90 Days 180 Flight Crew Total 16500 Flight Crew Type 3500
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Normal climbout. At cruise; got leading edge asymmetrical light. Indicator read 'up' normal. Turned autopilot off and noticed no roll or vibration. Ran checklist; declared emergency and captain landed runway 25R with trailing edge flaps 20 degrees.

Original NASA ASRS Text

Title: B757-200 landed with flaps twenty following receipt of a flap asymmetry warning while in cruise.

Narrative: Normal climbout. At cruise; got Leading Edge Asymmetrical light. Indicator read 'up' normal. Turned autopilot off and noticed no roll or vibration. Ran checklist; declared emergency and Captain landed Runway 25R with trailing edge flaps 20 degrees.

Data retrieved from NASA's ASRS site as of April 2012 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.