 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
CL65 taxiing for takeoff and flight crew performing checklists. When flight controls page on the EICAS was brought up the right spoileron was fully extended while the left was not, resulting in a twisted control surface.
| Attributes | |
| ACN | 400816 |
| Time | |
| Date | 199804 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : sus |
| Operator | common carrier : air carrier |
| Make Model Name | Challenger CL604 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 7000 flight time type : 300 |
| ASRS Report | 400816 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
On taxi out when the first officer brought up the flight controls page on the EICAS for the flight control check the right spoileron was already fully extended (uncommanded and without movement of the control wheel). Taxied back to gate and maintenance said that one side of spoileron was extended and the other was not, resulting in a twisted control surface. If this would have happened in flight it would most likely resulted in more than just a cancelled flight.
Original NASA ASRS Text
Title: CL65 TAXIING FOR TKOF AND FLC PERFORMING CHKLISTS. WHEN FLT CTLS PAGE ON THE EICAS WAS BROUGHT UP THE R SPOILERON WAS FULLY EXTENDED WHILE THE L WAS NOT, RESULTING IN A TWISTED CTL SURFACE.
Narrative: ON TAXI OUT WHEN THE FO BROUGHT UP THE FLT CTLS PAGE ON THE EICAS FOR THE FLT CTL CHECK THE R SPOILERON WAS ALREADY FULLY EXTENDED (UNCOMMANDED AND WITHOUT MOVEMENT OF THE CTL WHEEL). TAXIED BACK TO GATE AND MAINT SAID THAT ONE SIDE OF SPOILERON WAS EXTENDED AND THE OTHER WAS NOT, RESULTING IN A TWISTED CONTROL SURFACE. IF THIS WOULD HAVE HAPPENED IN FLT IT WOULD MOST LIKELY RESULTED IN MORE THAN JUST A CANCELLED FLT.
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.