Narrative:

Climb out after takeoff. Selected flaps up and warning horn sounded. Investigation revealed nose sensor ground switch malfunction (aircraft thought it was still on ground). Every attempt to raise flaps created warning horn (system designed to prevent flaps up takeoff and aircraft thought it was still on the ground). Coordinated with ATC, leveled at 10000 ft, 220 KTS. Contacted company maintenance -- recommended raise flaps. Horn would not silence -- pulled warning horn circuit breaker. Checked associated system operations normal. Continued to destination. Reset circuit breaker when flaps were lowered to return all warning system to normal operations. A procedure needs to be developed for flight crew's to utilize to silence warning horns for malfunctioning system. Pulling the warning horn circuit breaker needs to be standard practice for certain malfunctions. Supplemental information from acn 536251: we attempted to raise flaps from position '1' to 'up.' received master warning and 'flaps' message. WX was no factor. All other system operated normally except no fire bell. Fire system tested with all lights except master warning. There was no pom procedure to follow.

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Original NASA ASRS Text

Title: AFTER TKOF, A B767 FLC IS UNABLE TO RETRACT THEIR FLAPS FROM 1 DEG TO ZERO DEGS WITHOUT RECEIVING THE MASTER WARNING HORN AND A 'FLAPS' MESSAGE WHEN DEPARTING DEN, CO.

Narrative: CLBOUT AFTER TKOF. SELECTED FLAPS UP AND WARNING HORN SOUNDED. INVESTIGATION REVEALED NOSE SENSOR GND SWITCH MALFUNCTION (ACFT THOUGHT IT WAS STILL ON GND). EVERY ATTEMPT TO RAISE FLAPS CREATED WARNING HORN (SYS DESIGNED TO PREVENT FLAPS UP TKOF AND ACFT THOUGHT IT WAS STILL ON THE GND). COORDINATED WITH ATC, LEVELED AT 10000 FT, 220 KTS. CONTACTED COMPANY MAINT -- RECOMMENDED RAISE FLAPS. HORN WOULD NOT SILENCE -- PULLED WARNING HORN CIRCUIT BREAKER. CHKED ASSOCIATED SYS OPS NORMAL. CONTINUED TO DEST. RESET CIRCUIT BREAKER WHEN FLAPS WERE LOWERED TO RETURN ALL WARNING SYS TO NORMAL OPS. A PROC NEEDS TO BE DEVELOPED FOR FLC'S TO UTILIZE TO SILENCE WARNING HORNS FOR MALFUNCTIONING SYS. PULLING THE WARNING HORN CIRCUIT BREAKER NEEDS TO BE STANDARD PRACTICE FOR CERTAIN MALFUNCTIONS. SUPPLEMENTAL INFO FROM ACN 536251: WE ATTEMPTED TO RAISE FLAPS FROM POS '1' TO 'UP.' RECEIVED MASTER WARNING AND 'FLAPS' MESSAGE. WX WAS NO FACTOR. ALL OTHER SYS OPERATED NORMALLY EXCEPT NO FIRE BELL. FIRE SYS TESTED WITH ALL LIGHTS EXCEPT MASTER WARNING. THERE WAS NO POM PROC TO FOLLOW.

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.