B737-200 flight crew has a flap disagreement during selection of the flaps for initial approach.

Attributes
ACN	691964
Time
Date	200603
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 1500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 17r
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Experience	flight time last 90 days : 270 flight time total : 3500 flight time type : 1500
ASRS Report	691964
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : flap indicator other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : overcame equipment problem flight crew : landed as precaution flight crew : diverted to another airport flight crew : declared emergency
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

On selection of flaps 5 degrees; flap indicators indicated 4 degrees on left and 7 degrees on right with the leading edge disagreement light illuminated. A missed approach was initiated after attempting to move flaps with no results; we initiated the trailing edge flap disagreement checklist and determined a flaps 15 degree landing with alternate flap extension would be necessary. After coordinating with dispatch and crew; we decided to divert to ZZZ2. This was after setting up a hold. Flight to ZZZ2 was flown at 210 KTS with flaps indication 4 degrees and 7 degrees. Approach to ZZZ2 was with alternate flaps 15 degrees selected. Final indications were 4 degrees and 15 degrees with flap green light. After touchdown the flap indicators were normal.

Original NASA ASRS Text

Title: B737-200 FLT CREW HAS A FLAP DISAGREEMENT DURING SELECTION OF THE FLAPS FOR INITIAL APCH.

Narrative: ON SELECTION OF FLAPS 5 DEGS; FLAP INDICATORS INDICATED 4 DEGS ON L AND 7 DEGS ON R WITH THE LEADING EDGE DISAGREEMENT LIGHT ILLUMINATED. A MISSED APCH WAS INITIATED AFTER ATTEMPTING TO MOVE FLAPS WITH NO RESULTS; WE INITIATED THE TRAILING EDGE FLAP DISAGREEMENT CHKLIST AND DETERMINED A FLAPS 15 DEG LNDG WITH ALTERNATE FLAP EXTENSION WOULD BE NECESSARY. AFTER COORDINATING WITH DISPATCH AND CREW; WE DECIDED TO DIVERT TO ZZZ2. THIS WAS AFTER SETTING UP A HOLD. FLT TO ZZZ2 WAS FLOWN AT 210 KTS WITH FLAPS INDICATION 4 DEGS AND 7 DEGS. APCH TO ZZZ2 WAS WITH ALTERNATE FLAPS 15 DEGS SELECTED. FINAL INDICATIONS WERE 4 DEGS AND 15 DEGS WITH FLAP GREEN LIGHT. AFTER TOUCHDOWN THE FLAP INDICATORS WERE NORMAL.

Data retrieved from NASA's ASRS site as of January 2009 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.