<< >> NASA ASRS Report 855435, October 2009

A B737-800's configuration warning horn incorrectly alerted after takeoff and could not be silenced; the flight diverted to an enroute airport. The crew also experienced an IAS disagree light.

Attributes
ACN	855435
Time
Date	200910
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	Central Warning/Master Caution
Person 1
Function	Pilot Flying Captain
Person 2
Function	Pilot Not Flying
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Passing 2000 ft MSL after takeoff when we got a clean intermittent configuration warning horn. Recycled gear and flaps without success. Lowered flaps to 1 degree to silence horn. Ran configuration checklist without success. Called dispatch to put call through to maintenance. Was overweight for landing back at our departure airport. I was in and out of icing conditions after takeoff with temperature less than 10 degrees centigrade and in visible moisture. Since flaps were out and a limitation exists with holding in icing conditions with flaps deployed is prohibited; I continued on course to our filed destination to get out of icing conditions. Also; I had the IAS disagree light on. This was a repeat write-up. Could not correct either malfunction so an emergency was declared and I diverted to an enroute airport. Made an uneventful overweight landing at 151;300 pounds.

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Original NASA ASRS Text

Title: A B737-800's configuration warning horn incorrectly alerted after takeoff and could not be silenced; the flight diverted to an enroute airport. The crew also experienced an IAS disagree light.

Narrative: Passing 2000 FT MSL after takeoff when we got a clean intermittent configuration warning horn. Recycled gear and flaps without success. Lowered flaps to 1 degree to silence horn. Ran Configuration Checklist without success. Called Dispatch to put call through to Maintenance. Was overweight for landing back at our departure airport. I was in and out of icing conditions after takeoff with temperature less than 10 degrees Centigrade and in visible moisture. Since flaps were out and a limitation exists with holding in icing conditions with flaps deployed is prohibited; I continued on course to our filed destination to get out of icing conditions. Also; I had the IAS disagree light on. This was a repeat write-up. Could not correct either malfunction so an emergency was declared and I diverted to an enroute airport. Made an uneventful overweight landing at 151;300 LBS.

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.