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A B727-200 in climb between 6300-6500 ft declared an emergency, dumped fuel and diverted due to uncommanded nose left yaw and pitch inputs caused by a failed right elevator actuator.
| Attributes | |
| ACN | 487292 |
| Time | |
| Date | 200010 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : mia.airport |
| State Reference | FL |
| Altitude | msl bound lower : 6300 msl bound upper : 6500 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : mia.tracon tracon : d10.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : initial |
| Route In Use | departure : other published ifr departure |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 487292 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| ASRS Report | 487291 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : rudder position ind other flight crewa other flight crewb other other : 3 |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
XA42Z, frequency 125.5, 6500 ft, mia departure controller, dhp 151 degree radial 25 DME. Climbing through 6300 ft, aircraft experienced several flight control problems with no pilot inputs. Declared emergency, dumped fuel and returned to mia for landing. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a B727-200 and the incident occurred between 6300 ft and 6500 ft. The reporter said at 6300 ft the autoplt disconnected and the aircraft yawed nose left followed by 5-6 pitch-up movements. The reporter stated the pitch movements were felt in the control column. The reporter said when being interviewed by the chief pilot it was suggested by the chief pilot that these uncommanded control movements were pilot induced. The reporter stated the flight data recorder printout was checked and confirmed the uncommanded movements were not pilot induced. The reporter said maintenance found the right elevator power control unit had failed.
Original NASA ASRS Text
Title: A B727-200 IN CLB BTWN 6300-6500 FT DECLARED AN EMER, DUMPED FUEL AND DIVERTED DUE TO UNCOMMANDED NOSE L YAW AND PITCH INPUTS CAUSED BY A FAILED R ELEVATOR ACTUATOR.
Narrative: XA42Z, FREQ 125.5, 6500 FT, MIA DEP CTLR, DHP 151 DEG RADIAL 25 DME. CLBING THROUGH 6300 FT, ACFT EXPERIENCED SEVERAL FLT CTL PROBS WITH NO PLT INPUTS. DECLARED EMER, DUMPED FUEL AND RETURNED TO MIA FOR LNDG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A B727-200 AND THE INCIDENT OCCURRED BTWN 6300 FT AND 6500 FT. THE RPTR SAID AT 6300 FT THE AUTOPLT DISCONNECTED AND THE ACFT YAWED NOSE L FOLLOWED BY 5-6 PITCH-UP MOVEMENTS. THE RPTR STATED THE PITCH MOVEMENTS WERE FELT IN THE CTL COLUMN. THE RPTR SAID WHEN BEING INTERVIEWED BY THE CHIEF PLT IT WAS SUGGESTED BY THE CHIEF PLT THAT THESE UNCOMMANDED CTL MOVEMENTS WERE PLT INDUCED. THE RPTR STATED THE FLT DATA RECORDER PRINTOUT WAS CHKED AND CONFIRMED THE UNCOMMANDED MOVEMENTS WERE NOT PLT INDUCED. THE RPTR SAID MAINT FOUND THE R ELEVATOR PWR CTL UNIT HAD FAILED.
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.