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C208 captain reported auto pilot and trim warning failure resulted in workload challenge on subsequent IFR flights.
| Attributes | |
| ACN | 1700461 |
| Time | |
| Date | 201911 |
| Local Time Of Day | 1801-2400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Caravan 208B |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autoflight System |
| Person 1 | |
| Function | Captain Single Pilot |
| Qualification | Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 7200 Flight Crew Type 100 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Maintenance |
Narrative:
I departed ZZZ for ZZZ1 and comes to 3;200 ft. Direct to the zzzzz intersection. Upon leveling off at 3;200 ft. I turned on the autopilot to complete some paperwork. After about 10 minutes the controller asked what altitude are you at? At this point the autopilot had turned off with no warning. I flew the rest of the day with the autopilot off. The next day when the preflight test was done the trim warnings would not silence. At that point our mechanic inspected the system and then implemented MEL documentation. Subsequent IFR flights have been a challenge being a 100 hour captain. I has been rough maintaining standards when operating as a single pilot. Then compound all that with system failures. I have been operating for two weeks now without an autopilot.
Original NASA ASRS Text
Title: C208 Captain reported auto pilot and trim warning failure resulted in workload challenge on subsequent IFR flights.
Narrative: I departed ZZZ for ZZZ1 and comes to 3;200 ft. direct to the ZZZZZ intersection. Upon leveling off at 3;200 ft. I turned on the autopilot to complete some paperwork. After about 10 minutes the Controller asked what altitude are you at? At this point the autopilot had turned off with no warning. I flew the rest of the day with the autopilot off. The next day when the preflight test was done the trim warnings would not silence. At that point our mechanic inspected the system and then implemented MEL documentation. Subsequent IFR flights have been a challenge being a 100 hour Captain. I has been rough maintaining standards when operating as a single pilot. Then compound all that with system failures. I have been operating for two weeks now without an autopilot.
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.