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B767 flight crew reports receiving a rudder ratio EICAS message during initial climb and later in climb an aileron lockout EICAS. Autopilots would not engage. Crew elects to return to departure airport after dumping fuel to land below maximum landing weight.
| Attributes | |
| ACN | 958931 |
| Time | |
| Date | 201107 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Component | |
| Aircraft Component | Aileron Control System |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 230 Flight Crew Total 12900 Flight Crew Type 8140 |
| Person 2 | |
| Function | Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 161 Flight Crew Total 12294 Flight Crew Type 7338 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
On climb out we got rudder ratio EICAS. Later in climb got aileron lockout EICAS. Attempted to engage autopilots and left; C; and right autopilots would not engage. [We] accomplished all flight manual checklists for above conditions. Spoke with dispatch and maintenance control. Maintenance had no remedies for/or suggestions for conditions above. [We] advised against trouble shooting rudder ratio. After clearance from ATC dumped 8K fuel at 24;000 ft. Due to conditions above captain with crew concurrence elected to return to departure airport. [It was an] uneventful landing.
Original NASA ASRS Text
Title: B767 flight crew reports receiving a Rudder Ratio EICAS message during initial climb and later in climb an Aileron Lockout EICAS. Autopilots would not engage. Crew elects to return to departure airport after dumping fuel to land below maximum landing weight.
Narrative: On climb out we got Rudder Ratio EICAS. Later in climb got Aileron Lockout EICAS. Attempted to engage autopilots and L; C; and R autopilots would not engage. [We] accomplished all flight manual checklists for above conditions. Spoke with Dispatch and Maintenance Control. Maintenance had no remedies for/or suggestions for conditions above. [We] advised against trouble shooting rudder ratio. After clearance from ATC dumped 8K fuel at 24;000 FT. Due to conditions above Captain with crew concurrence elected to return to departure airport. [It was an] uneventful landing.
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.