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A C172 autopilot would neither respond to a turning input nor disconnect on a class B departure distracting the student; his instructor and causing a track deviation.
| Attributes | |
| ACN | 920888 |
| Time | |
| Date | 201011 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Cessna Citation Undifferentiated or Other Model |
| Flight Phase | Climb Takeoff |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autopilot |
| Person 1 | |
| Function | Trainee |
| Qualification | Flight Crew Private Flight Crew Instrument Flight Crew Sea |
| Experience | Flight Crew Last 90 Days 4 Flight Crew Total 1350 Flight Crew Type 800 |
| Person 2 | |
| Function | Instructor |
| Qualification | Flight Crew Flight Instructor |
| Experience | Flight Crew Last 90 Days 40 Flight Crew Total 780 Flight Crew Type 300 |
| Events | |
| Anomaly | Conflict Airborne Conflict Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
We were on a training flight. At 1;500 ft; my instructor took control so I could put [on] the IFR hood. When I took control of the plane; my instructor informed me the plane was on autopilot. ATC gave us a heading. During this time the autopilot started to act up (i.e. I could not over ride per yoke force disconnect switch on yoke). I was turning for the ATC heading and correcting the autopilot. The instructor pulled the circuit breaker. We got our heading and altitude and I was informed by ATC of a traffic conflict from a departing jet. I told them of autopilot problems and was told to call them on ground. To correct this situation; don't put the autopilot on during high workload and give the plane to the pilot like she or he had it when you change command of flight controls.
Original NASA ASRS Text
Title: A C172 autopilot would neither respond to a turning input nor disconnect on a Class B departure distracting the student; his instructor and causing a track deviation.
Narrative: We were on a training flight. At 1;500 FT; my instructor took control so I could put [on] the IFR HOOD. When I took control of the plane; my instructor informed me the plane was on autopilot. ATC gave us a heading. During this time the autopilot started to act up (i.e. I could not over ride per yoke force disconnect switch on yoke). I was turning for the ATC heading and correcting the autopilot. The instructor pulled the circuit breaker. We got our heading and altitude and I was informed by ATC of a traffic conflict from a departing jet. I told them of autopilot problems and was told to call them on ground. To correct this situation; don't put the autopilot on during high workload and give the plane to the pilot like she or he had it when you change command of flight controls.
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.