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BE76 pilot reports encountering severe turbulence shortly after takeoff and losing both gyros and the turn indicator. Difficulty following no gyro instructions from ATC result in altitude loss and eventual view of the ground. Recovery is made and a second pilot aboard returns aircraft to the departure airport.
| Attributes | |
| ACN | 921276 |
| Time | |
| Date | 201011 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Duchess 76 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Attitude Indicator(Gyro/Horizon/ADI) |
| Person 1 | |
| Function | Pilot Flying |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Private |
| Experience | Flight Crew Last 90 Days 55 Flight Crew Total 220 Flight Crew Type 80 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Altitude Excursion From Assigned Altitude Deviation - Track / Heading All Types Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Weather / Turbulence |
Narrative:
Upon departing at 1;000 ft MSL on initial climb I hit severe turbulence and gyros immediately tumbled. Additionally the turn coordinator stuck in left turn indication and stayed in this position until eventual landing back at the departure airport. I had difficulty following no gyro instructions given by ATC due to the loss of all instruments and extreme turbulence. During this time loss of altitude provided view of ground and I continued to struggle with maintaining altitude with full throttle and a climb attitude. At one point we were in a 1;500 ft per minute descent due to the strong downdraft. At the time I reached the MVFR ceiling I turned the controls over to another IFR pilot and we returned for a landing at the origination airport VFR and turned plane over to maintenance.
Original NASA ASRS Text
Title: BE76 pilot reports encountering severe turbulence shortly after takeoff and losing both gyros and the turn indicator. Difficulty following no gyro instructions from ATC result in altitude loss and eventual view of the ground. Recovery is made and a second pilot aboard returns aircraft to the departure airport.
Narrative: Upon departing at 1;000 FT MSL on initial climb I hit severe turbulence and gyros immediately tumbled. Additionally the turn coordinator stuck in left turn indication and stayed in this position until eventual landing back at the departure airport. I had difficulty following no gyro instructions given by ATC due to the loss of all instruments and extreme turbulence. During this time loss of altitude provided view of ground and I continued to struggle with maintaining altitude with full throttle and a climb attitude. At one point we were in a 1;500 FT per minute descent due to the strong downdraft. At the time I reached the MVFR ceiling I turned the controls over to another IFR pilot and we returned for a landing at the origination airport VFR and turned plane over to maintenance.
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.