A B727-200 on initial climb at 2200 ft had the amber leading edge disagreement light on. Turned on a...

Attributes
ACN	423500
Time
Date	199812
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lan
State Reference	MI
Altitude	msl bound lower : 2200 msl bound upper : 2200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : cfi
Experience	flight time last 90 days : 150 flight time total : 13500 flight time type : 9500
ASRS Report	423500
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

Aircraft departed lan on runway 28L. On flap retraction from 5 degrees to 2 degrees, the amber leading edge disagreement light on the first officer's panel remained illuminated. Airspeed was limited to 180 KTS during abnormal procedure. Airfoil anti-ice was selected on as a leading edge position indication microswitch was suspect. Referenced B727 communication for abnormal procedure, none found. Leading edge panel was referenced to determine actual position of leading edge devices. With flap handle in the 2 degree position, both inboard and outboard flap needles were at 2 degrees, leading edges extended were 2, 3, 6, 7, and the amber leading edge light was illuminated. Dispatch and maintenance control were consulted for additional mechanical and operational considerations, and to determine an appropriate resolution to the indication. Flaps up were selected and verified all flaps and leading edge devices were determined to be retracted. Leading edge disagreement amber light extinguished after approximately 10 mins of airfoil anti-ice application. Flight operated to dtw with all flight control and indications normal in descent and landing.

Original NASA ASRS Text

Title: A B727-200 ON INITIAL CLB AT 2200 FT HAD THE AMBER LEADING EDGE DISAGREEMENT LIGHT ON. TURNED ON AIRFOIL ANTI-ICE AND RETRACTED FLAPS. AFTER 10 MINS OF AIRFOIL ANTI-ICE OP, LIGHT WENT OUT AND ALL INDICATIONS NORMAL.

Narrative: ACFT DEPARTED LAN ON RWY 28L. ON FLAP RETRACTION FROM 5 DEGS TO 2 DEGS, THE AMBER LEADING EDGE DISAGREEMENT LIGHT ON THE FO'S PANEL REMAINED ILLUMINATED. AIRSPD WAS LIMITED TO 180 KTS DURING ABNORMAL PROC. AIRFOIL ANTI-ICE WAS SELECTED ON AS A LEADING EDGE POS INDICATION MICROSWITCH WAS SUSPECT. REFED B727 COM FOR ABNORMAL PROC, NONE FOUND. LEADING EDGE PANEL WAS REFED TO DETERMINE ACTUAL POS OF LEADING EDGE DEVICES. WITH FLAP HANDLE IN THE 2 DEG POS, BOTH INBOARD AND OUTBOARD FLAP NEEDLES WERE AT 2 DEGS, LEADING EDGES EXTENDED WERE 2, 3, 6, 7, AND THE AMBER LEADING EDGE LIGHT WAS ILLUMINATED. DISPATCH AND MAINT CTL WERE CONSULTED FOR ADDITIONAL MECHANICAL AND OPERATIONAL CONSIDERATIONS, AND TO DETERMINE AN APPROPRIATE RESOLUTION TO THE INDICATION. FLAPS UP WERE SELECTED AND VERIFIED ALL FLAPS AND LEADING EDGE DEVICES WERE DETERMINED TO BE RETRACTED. LEADING EDGE DISAGREEMENT AMBER LIGHT EXTINGUISHED AFTER APPROX 10 MINS OF AIRFOIL ANTI-ICE APPLICATION. FLT OPERATED TO DTW WITH ALL FLT CTL AND INDICATIONS NORMAL IN DSCNT AND LNDG.

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.

A B727-200 on initial climb at 2200 ft had the amber leading edge disagreement light on. Turned on airfoil anti-ice and retracted flaps. After 10 mins of airfoil anti-ice operation, light went out and all indications normal.