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A319 flight crewmember reported diverting to an alternate to repair a malfunctioning integrated standby attitude and altimeter indicator system.
| Attributes | |
| ACN | 1508753 |
| Time | |
| Date | 201801 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Attitude Indicator(Gyro/Horizon/ADI) |
| Person 1 | |
| Function | Other / Unknown |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
1 hour and 15 minutes into flight; [the] integrated standby attitude and altimeter indicator system (isis) failed. QRH only allows ground reset procedures. After speaking with dispatch and maintenance; we jointly agreed to divert in order to make repairs. Aircraft was 15000 pounds overweight; PIC authority under far 91.3 was subsequently declared and all applicable checklist were completed. The landing was normal and minimal brakes were needed. The repairs were made and the aircraft continued to original destination. The isis system is critical if electrical power is lost to primary attitude indicator systems. If subsequently; also in IMC the potential for disorientation is a huge problem.
Original NASA ASRS Text
Title: A319 flight crewmember reported diverting to an alternate to repair a malfunctioning integrated standby attitude and altimeter indicator system.
Narrative: 1 hour and 15 minutes into flight; [the] integrated standby attitude and altimeter indicator system (ISIS) failed. QRH only allows ground reset procedures. After speaking with Dispatch and Maintenance; we jointly agreed to divert in order to make repairs. Aircraft was 15000 pounds overweight; PIC authority under FAR 91.3 was subsequently declared and all applicable checklist were completed. The landing was normal and minimal brakes were needed. The repairs were made and the aircraft continued to original destination. The ISIS system is critical if electrical power is lost to primary attitude indicator systems. If subsequently; also in IMC the potential for disorientation is a huge problem.
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.