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A320 flight crew declared an emergency and diverted when a broken altitude alert knobs caused the altitude alert to sound continuously.
| Attributes | |
| ACN | 835464 |
| Time | |
| Date | 200905 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | IAD.Airport |
| State Reference | DC |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Altitude Alert |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 17000 Flight Crew Type 200 |
| Person 2 | |
| Function | Pilot Flying |
| Experience | Flight Crew Last 90 Days 140 Flight Crew Total 8343 Flight Crew Type 3111 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Inflight Event / Encounter Other / Unknown |
Narrative:
Upon leaving 17;000 ft in climb; altitude selector knob broke resulting in a constant altitude warning horn. After a lengthy talk with dispatch and maintenance we decided a diversion was the best course of action. All checklists were completed for an uneventful overweight landing. Dispatch was notified that an emergency had been declared.
Original NASA ASRS Text
Title: A320 flight crew declared an emergency and diverted when a broken altitude alert knobs caused the altitude alert to sound continuously.
Narrative: Upon leaving 17;000 FT in climb; altitude selector knob broke resulting in a constant altitude warning horn. After a lengthy talk with Dispatch and Maintenance we decided a diversion was the best course of action. All checklists were completed for an uneventful overweight landing. Dispatch was notified that an emergency had been declared.
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.