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B737 ng captain reported they diverted to an alternate airport after receiving multiple nuisance aural warnings that could not be silenced.
| Attributes | |
| ACN | 1403589 |
| Time | |
| Date | 201611 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B737 Next Generation Undifferentiated |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Type 3025 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
At cruise we simultaneously had mach overspeed; fire bell; and cabin altitude warning horns activate. We assessed the aircraft's actual condition and along with [maintenance] determined there were no actual malfunctions other than the un-cancellable aural horns. We diverted to [an alternate] and the horns remained activated so [maintenance] could see the issue.
Original NASA ASRS Text
Title: B737 NG Captain reported they diverted to an alternate airport after receiving multiple nuisance aural warnings that could not be silenced.
Narrative: At cruise we simultaneously had Mach overspeed; fire bell; and cabin altitude warning horns activate. We assessed the aircraft's actual condition and along with [Maintenance] determined there were no actual malfunctions other than the un-cancellable aural horns. We diverted to [an alternate] and the horns remained activated so [Maintenance] could see the issue.
Data retrieved from NASA's ASRS site 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.