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B737-500 crew detected catching, sticking ailerons. The crew contacted the air carrier dispatcher and the air carrier maintenance controller. The dispatcher declared an emergency for the crew for landing.
| Attributes | |
| ACN | 597688 |
| Time | |
| Date | 200310 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : mci.vortac |
| State Reference | MO |
| Altitude | msl single value : 25000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 597688 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance controller : provided flight assist flight crew : declared emergency other |
| Consequence | faa : investigated other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Copilot and then I moved ailerons approximately 10 degrees left and right after he noticed a slight catching or binding with the ailerons. I contacted dispatch and maintenance controller and after discussing the issue, dispatch asked for an emergency into denver so we could minimize our bank angles on the approach. I also requested runway 16R for the length and width and did a 15 degree flap landing as a precaution. Noticed the same catching with the ailerons while hand flying on descent. Flight ended with no incident. Aircraft was met by maintenance and 3 FAA personal.
Original NASA ASRS Text
Title: B737-500 CREW DETECTED CATCHING, STICKING AILERONS. THE CREW CONTACTED THE ACR DISPATCHER AND THE ACR MAINT CTLR. THE DISPATCHER DECLARED AN EMER FOR THE CREW FOR LNDG.
Narrative: COPLT AND THEN I MOVED AILERONS APPROX 10 DEGS L AND R AFTER HE NOTICED A SLIGHT CATCHING OR BINDING WITH THE AILERONS. I CONTACTED DISPATCH AND MAINT CTLR AND AFTER DISCUSSING THE ISSUE, DISPATCH ASKED FOR AN EMER INTO DENVER SO WE COULD MINIMIZE OUR BANK ANGLES ON THE APCH. I ALSO REQUESTED RWY 16R FOR THE LENGTH AND WIDTH AND DID A 15 DEG FLAP LNDG AS A PRECAUTION. NOTICED THE SAME CATCHING WITH THE AILERONS WHILE HAND FLYING ON DSCNT. FLT ENDED WITH NO INCIDENT. ACFT WAS MET BY MAINT AND 3 FAA PERSONAL.
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.