 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B717 in climb out at 8500 ft experienced abrupt left roll 20-25 degrees and needed 60 degrees right wing down for wings level. Emergency declared and diverted.
| Attributes | |
| ACN | 570918 |
| Time | |
| Date | 200301 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 8500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B717 (Formerly MD-95) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 15000 |
| ASRS Report | 570918 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 60 flight time total : 3400 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
At approximately 8500 ft, during climb out from ZZZ airport, we experienced an abrupt roll to the left. Aircraft banked to between 20-25 degrees, however, recovery to level flight was swift and decisive. Approximately 60 degrees of control yoke deflection was required to keep wings level. We elected to return to the ZZZ airport, declared an emergency and signaled the flight attendants with the emergency ring code, and made cabin announcements -- most of which were not heard by most of the passenger, from what they told me after landing. Landing was uneventful and we returned to the gate. Emergency crash crew reported all looked well. Callback conversation with reporter revealed the following information: the reporter said the manufacturer is looking into the incident.
Original NASA ASRS Text
Title: A B717 IN CLBOUT AT 8500 FT EXPERIENCED ABRUPT L ROLL 20-25 DEGS AND NEEDED 60 DEGS R WING DOWN FOR WINGS LEVEL. EMER DECLARED AND DIVERTED.
Narrative: AT APPROX 8500 FT, DURING CLBOUT FROM ZZZ ARPT, WE EXPERIENCED AN ABRUPT ROLL TO THE L. ACFT BANKED TO BTWN 20-25 DEGS, HOWEVER, RECOVERY TO LEVEL FLT WAS SWIFT AND DECISIVE. APPROX 60 DEGS OF CTL YOKE DEFLECTION WAS REQUIRED TO KEEP WINGS LEVEL. WE ELECTED TO RETURN TO THE ZZZ ARPT, DECLARED AN EMER AND SIGNALED THE FLT ATTENDANTS WITH THE EMER RING CODE, AND MADE CABIN ANNOUNCEMENTS -- MOST OF WHICH WERE NOT HEARD BY MOST OF THE PAX, FROM WHAT THEY TOLD ME AFTER LNDG. LNDG WAS UNEVENTFUL AND WE RETURNED TO THE GATE. EMER CRASH CREW RPTED ALL LOOKED WELL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR SAID THE MANUFACTURER IS LOOKING INTO THE INCIDENT.
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.