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A DC9-10 immediately after takeoff experienced an uncommanded roll to the right at 150 ft AGL, requiring maximum left aileron input to correct. Roll repeated 3 times between 150 ft AGL and 50 ft AGL.
| Attributes | |
| ACN | 373980 |
| Time | |
| Date | 199707 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mem |
| State Reference | TN |
| Altitude | agl bound lower : 50 agl bound upper : 150 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : zme |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 10 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial climbout : takeoff other |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 850 |
| ASRS Report | 373980 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : instrument pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 250 flight time total : 8000 flight time type : 1100 |
| ASRS Report | 374672 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
At 150 ft AGL, aircraft performed an uncommanded roll to the right requiring maximum left aileron control input to correct. This repeated itself 3 times between 150 ft and 50 ft AGL. Callback conversation with reporter revealed the following information: reporter stated the aircraft was a DC9-10 and had 2 previous reports on the ailerons and the roll to the right. Maintenance found 1 of 2 spoiler cables rigged incorrectly allowing the right flight spoilers to lift almost to full up before the right aileron input reached 5 degrees. He said this situation was not detectable on the cockpit control check.
Original NASA ASRS Text
Title: A DC9-10 IMMEDIATELY AFTER TKOF EXPERIENCED AN UNCOMMANDED ROLL TO THE R AT 150 FT AGL, REQUIRING MAX L AILERON INPUT TO CORRECT. ROLL REPEATED 3 TIMES BTWN 150 FT AGL AND 50 FT AGL.
Narrative: AT 150 FT AGL, ACFT PERFORMED AN UNCOMMANDED ROLL TO THE R REQUIRING MAX L AILERON CTL INPUT TO CORRECT. THIS REPEATED ITSELF 3 TIMES BTWN 150 FT AND 50 FT AGL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THE ACFT WAS A DC9-10 AND HAD 2 PREVIOUS RPTS ON THE AILERONS AND THE ROLL TO THE R. MAINT FOUND 1 OF 2 SPOILER CABLES RIGGED INCORRECTLY ALLOWING THE R FLT SPOILERS TO LIFT ALMOST TO FULL UP BEFORE THE R AILERON INPUT REACHED 5 DEGS. HE SAID THIS SIT WAS NOT DETECTABLE ON THE COCKPIT CTL CHK.
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.