A B757 captain reported asymmetric trailing edge flaps during approach. No EICAS message was generat...

Attributes
ACN	844563
Time
Date	200907
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	IFR
Component
Aircraft Component	Flap/Slat Indication
Person 1
Function	Captain Pilot Flying
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

During a visual approach we experienced an asymmetric trailing edge flap indication without an EICAS message. Flaps were normal until selecting flaps twenty degrees. No adverse roll was apparent with split indication. After executing a go-around; we followed the procedures in the QRH; requested holding and declared an emergency. We entered the hold; but as we turned outbound we requested vectors for landing. All checklists were completed and the landing was uneventful. Crash fire rescue equipment equipment followed us to the gate; where we deplaned the passengers and met with maintenance.

Original NASA ASRS Text

Title: A B757 Captain reported asymmetric trailing edge flaps during approach. No EICAS message was generated and no rolling tendency was noted. QRH was complied with and an uneventful landing made.

Narrative: During a visual approach we experienced an asymmetric trailing edge flap indication without an EICAS message. Flaps were normal until selecting flaps twenty degrees. No adverse roll was apparent with split indication. After executing a go-around; we followed the procedures in the QRH; requested holding and declared an emergency. We entered the hold; but as we turned outbound we requested vectors for landing. All checklists were completed and the landing was uneventful. CFR equipment followed us to the gate; where we deplaned the passengers and met with maintenance.

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.

A B757 captain reported asymmetric trailing edge flaps during approach. No EICAS message was generated and no rolling tendency was noted. QRH was complied with and an uneventful landing made.