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DHC8 first officer experiences a right AC bus fail caution light and returns to departure airport. The aircraft had a history of four previous right AC bus failures in the past two weeks.
| Attributes | |
| ACN | 980971 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Dash 8-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Electrical Distribution Busbar |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Commercial |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
As we leveled off at 7;000 we got a right AC bus fail caution light and associated lights for associated systems. As we were very close to our departure airport and in icing conditions we immediately elected to return. We performed all required procedures and executed appropriate checklists and landed without further incident. This aircraft had been written up for the exact same problems 4 times prior to our occurrence; all within past two weeks. Additionally we learned that another aircraft was also on the ground with the exact same problem on its third occurrence of the issue. Proper attention to the defect instead of just cleaning a cannon plug; we have an obvious issue with these AC buses. Let's get with it and fix things right!
Original NASA ASRS Text
Title: DHC8 First Officer experiences a Right AC BUS fail caution light and returns to departure airport. The aircraft had a history of four previous Right AC BUS failures in the past two weeks.
Narrative: As we leveled off at 7;000 we got a Right AC BUS fail caution light and associated lights for associated systems. As we were very close to our departure airport and in icing conditions we immediately elected to return. We performed all required procedures and executed appropriate checklists and landed without further incident. This aircraft had been written up for the exact same problems 4 times prior to our occurrence; all within past two weeks. Additionally we learned that another aircraft was also on the ground with the EXACT same problem on its third occurrence of the issue. Proper attention to the defect instead of just cleaning a cannon plug; we have an obvious issue with these AC Buses. Let's get with it and fix things right!
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.