A B757-200 on 3 mi final approach made a go around due to flap slat disagreement warning.

Attributes
ACN	466211
Time
Date	200003
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : clt.airport
State Reference	NC
Altitude	agl single value : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : clt.tracon
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	landing : go around
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : cfi pilot : flight engineer pilot : multi engine pilot : instrument pilot : atp
Experience	flight time last 90 days : 150 flight time total : 17000 flight time type : 20
ASRS Report	466211
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : multi engine pilot : flight engineer pilot : instrument technician : fcc
Experience	flight time last 90 days : 50 flight time total : 18000 flight time type : 2500
ASRS Report	466218
Events
Anomaly	maintenance problem : improper maintenance non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : flap slat disagree other flight crewa other flight crewb
Resolutory Action	flight crew : executed go around
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : repair performance deficiency : testing
Supplementary
Problem Areas	Aircraft Maintenance Human Performance Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

On selecting flaps 30 degrees from 20 degrees, both leading edge and trailing edge disagreement lights illuminated. Did go around and ran checklist. Landing without incident. Callback conversation with reporter revealed the following information: the reporter stated this airplane has a long maintenance history on this flap/slat disagreement warning problem. The reporter said the flap/slat disagreement warning was written up again but is unaware of the maintenance action taken.

Original NASA ASRS Text

Title: A B757-200 ON 3 MI FINAL APCH MADE A GAR DUE TO FLAP SLAT DISAGREEMENT WARNING.

Narrative: ON SELECTING FLAPS 30 DEGS FROM 20 DEGS, BOTH LEADING EDGE AND TRAILING EDGE DISAGREEMENT LIGHTS ILLUMINATED. DID GAR AND RAN CHKLIST. LNDG WITHOUT INCIDENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THIS AIRPLANE HAS A LONG MAINT HISTORY ON THIS FLAP/SLAT DISAGREEMENT WARNING PROB. THE RPTR SAID THE FLAP/SLAT DISAGREEMENT WARNING WAS WRITTEN UP AGAIN BUT IS UNAWARE OF THE MAINT ACTION TAKEN.

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.