The flaps failed to extend properly on an A-320.

Attributes
ACN	280663
Time
Date	199408
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw tower : ord
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 19000 flight time type : 1800
ASRS Report	280663
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8000 flight time type : 2100
ASRS Report	280633
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

On approach to runway 21R at dtw, we selected flaps 2. Slats went to #2 position. Flaps locked up at zero degrees extension. ECAM message 'F/control flaps locked -- wing tip brakes on' complied with communication procedures. Contacted dispatch and maintenance control. We declared an emergency with ATC and proceeded with an uneventful landing. Callback conversation with reporter revealed the following information: the reporter is flying the A-320 for a major us air carrier. He 'learns something new every day.' the 'wing tip brakes on' ECAM message tells the flight crew that a device has locked the flaps in the position where they are now when a misalignment is detected to prevent any further flap movement and to keep the aircraft from getting into any trouble. The wing tip brake must be reset on the ground.

Original NASA ASRS Text

Title: THE FLAPS FAILED TO EXTEND PROPERLY ON AN A-320.

Narrative: ON APCH TO RWY 21R AT DTW, WE SELECTED FLAPS 2. SLATS WENT TO #2 POS. FLAPS LOCKED UP AT ZERO DEGS EXTENSION. ECAM MESSAGE 'F/CTL FLAPS LOCKED -- WING TIP BRAKES ON' COMPLIED WITH COM PROCS. CONTACTED DISPATCH AND MAINT CTL. WE DECLARED AN EMER WITH ATC AND PROCEEDED WITH AN UNEVENTFUL LNDG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR IS FLYING THE A-320 FOR A MAJOR US ACR. HE 'LEARNS SOMETHING NEW EVERY DAY.' THE 'WING TIP BRAKES ON' ECAM MESSAGE TELLS THE FLC THAT A DEVICE HAS LOCKED THE FLAPS IN THE POS WHERE THEY ARE NOW WHEN A MISALIGNMENT IS DETECTED TO PREVENT ANY FURTHER FLAP MOVEMENT AND TO KEEP THE ACFT FROM GETTING INTO ANY TROUBLE. THE WING TIP BRAKE MUST BE RESET ON THE GND.

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.