<< >> NASA ASRS Report 1038841, September 2012

A B737-800 crew declared an emergency and diverted to a nearby airport after a te flap asymmetry and te flap disagree alerted on final at an airport with a relatively short runway.

Attributes
ACN	1038841
Time
Date	201209
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	Leading Edge Flap
Person 1
Function	First Officer Pilot Not Flying
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Configuring on schedule on a visual approach to runway 19; flight crew noticed a trailing flap asymmetry and a trailing flap disagree at approximately 1;300-1;500 ft AGL. As the final flap setting of 40 was selected the flight crew observed the flaps had split and were stuck at 27 degrees (approximately) on the left and 29 degrees (approximately) on the right. A go-around was initiated and emergency declared with ATC. Aircraft diverted to a nearby international airport and completed appropriate checklists (trailing edge flap asymmetry) and landed without incident.

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Original NASA ASRS Text

Title: A B737-800 crew declared an emergency and diverted to a nearby airport after a TE FLAP ASYMMETRY and TE FLAP DISAGREE alerted on final at an airport with a relatively short runway.

Narrative: Configuring on schedule on a visual approach to Runway 19; flight crew noticed a trailing flap asymmetry and a trailing flap disagree at approximately 1;300-1;500 FT AGL. As the final flap setting of 40 was selected the flight crew observed the flaps had split and were stuck at 27 degrees (approximately) on the left and 29 degrees (approximately) on the right. A go-around was initiated and emergency declared with ATC. Aircraft diverted to a nearby International Airport and completed appropriate checklists (Trailing Edge Flap Asymmetry) and landed without incident.

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.