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An inexperienced beech-18S pilot may have overleaned the left engine after initial level off in the pattern; causing it to lose power.
| Attributes | |
| ACN | 871392 |
| Time | |
| Date | 201002 |
| Local Time Of Day | 0601-1200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Twin Beech 18 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Flight Plan | None |
| Component | |
| Aircraft Component | Carburetor |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 15 Flight Crew Total 3100 Flight Crew Type 5 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
As I was leveling off on downwind after departure; the left engine experienced loss of RPM and the airplane yawed to the left. Being very close to the airport I elected to feather and secure the engine and land without delay. I did not spend a lot of time trying to troubleshoot the issue. After stopping on the runway I was not able to taxi the airplane on one engine and had to shut down and tow the airplane clear of the runway. During my checkout I was taught to adjust the mixtures after the throttles and the props during the initial power reduction. In hindsight; it is possible that I retarded the mixtures too far; causing the engine to experience a loss of power when leveling off and reducing power. I advanced the throttles to troubleshoot the issue but in the heat of the action I do not remember pushing the mixtures before I feathered the engine.
Original NASA ASRS Text
Title: An inexperienced Beech-18S pilot may have overleaned the left engine after initial level off in the pattern; causing it to lose power.
Narrative: As I was leveling off on downwind after departure; the left engine experienced loss of RPM and the airplane yawed to the left. Being very close to the airport I elected to feather and secure the engine and land without delay. I did not spend a lot of time trying to troubleshoot the issue. After stopping on the runway I was not able to taxi the airplane on one engine and had to shut down and tow the airplane clear of the runway. During my checkout I was taught to adjust the mixtures after the throttles and the props during the initial power reduction. In hindsight; it is possible that I retarded the mixtures too far; causing the engine to experience a loss of power when leveling off and reducing power. I advanced the throttles to troubleshoot the issue but in the heat of the action I do not remember pushing the mixtures before I feathered the engine.
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.