B737-800 flaps stuck during extension. An emergency was declared and the flight landed uneventfully.

Narrative:

While flying a visual approach I began to extend the flaps; but they [were] stuck in the up position. We determined that the flaps were stuck due to an asymmetry problem; and ran the appropriate checklist. We completed the checklist; declared an emergency; briefed the passengers and crew; and made an uneventful flaps up landing with le devices extended. We stopped on the runway to have the arff personnel check the aircraft and then continued taxi to the gate.I had added additional fuel prior to departure; so we had sufficient fuel to properly accomplish a fairly complicated procedure; which required reference to sources outside of the QRH. If we had arrived with the originally scheduled fuel; we would have been very rushed trying to accomplish the emergency procedures. This underscores the fact that company arrival fuel is often marginal; leaving little room if the unexpected should occur.

Original NASA ASRS Text

Title: B737-800 flaps stuck during extension. An emergency was declared and the flight landed uneventfully.

Narrative: While flying a visual approach I began to extend the flaps; but they [were] stuck in the up position. We determined that the flaps were stuck due to an asymmetry problem; and ran the appropriate checklist. We completed the checklist; declared an emergency; briefed the passengers and crew; and made an uneventful flaps up landing with LE devices extended. We stopped on the runway to have the ARFF personnel check the aircraft and then continued taxi to the gate.I had added additional fuel prior to departure; so we had sufficient fuel to properly accomplish a fairly complicated procedure; which required reference to sources outside of the QRH. If we had arrived with the originally scheduled fuel; we would have been very rushed trying to accomplish the emergency procedures. This underscores the fact that company arrival fuel is often marginal; leaving little room if the unexpected should occur.

Data retrieved from NASA's ASRS site as of July 2013 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	1066228
Time
Date	201302
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	IFR
Component
Aircraft Component	Flap Control (Trailing & Leading Edge)
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical