B737-800 captain experienced trailing edge flap disagree during approach and goes around. Flaps retr...

Narrative:

While on approach for landing; we determined that the flap position indicator did not agree with the selected position; but did not show a trailing edge flap asymmetry. We decided the best action was to execute a go around; climb to a safe altitude; determine what further actions to take and configure the aircraft for landing. The go around was accomplished normally with the flaps retracting normally and the flap position indicator always agreeing with the flaps selected. After reaching a safe altitude and reading the trailing edge flap disagree QRH; we determined that it did not apply to our situation because the flaps retracted normally on go around and the flap position indicator agreed with the flaps selected. We asked for a vector back to the airport and the aircraft configured normally with the flap position indicator always agreeing with the selected flap position. We executed a normal landing without further issues.

Original NASA ASRS Text

Title: B737-800 Captain experienced trailing edge flap disagree during approach and goes around. Flaps retracted normally then extend normally on the next approach.

Narrative: While on approach for landing; we determined that the flap position indicator did not agree with the selected position; but did not show a trailing edge flap asymmetry. We decided the best action was to execute a go around; climb to a safe altitude; determine what further actions to take and configure the aircraft for landing. The go around was accomplished normally with the flaps retracting normally and the flap position indicator always agreeing with the flaps selected. After reaching a safe altitude and reading the Trailing Edge Flap Disagree QRH; we determined that it did not apply to our situation because the flaps retracted normally on go around and the flap position indicator agreed with the flaps selected. We asked for a vector back to the airport and the aircraft configured normally with the flap position indicator always agreeing with the selected flap position. We executed a normal landing without further issues.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	880426
Time
Date	201003
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Landing
Component
Aircraft Component	Flap Control (Trailing & Leading Edge)
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

B737-800 captain experienced trailing edge flap disagree during approach and goes around. Flaps retracted normally then extend normally on the next approach.