Raj Hamsa X’Air 133(1), G-CDHO
Report name:
Raj Hamsa X'Air 133(1), G-CDHO
Raj Hamsa X'Air 133(1), G-CDHO
Registration:
G-CDHO
G-CDHO
Type:
Raj Hamsa X'Air 133(1)
Raj Hamsa X'Air 133(1)
Location:
Near Tilbury Docks, Essex
Near Tilbury Docks, Essex
Date of occurrence:
17 June 2006
17 June 2006
Category:
Sport Aviation/Balloons
Sport Aviation/Balloons
Summary:
When close to Tilbury Docks, during a training flight, the magneto rotor separated from the engine, causing it to stop, and damaged the propeller. The instructor carried out an uneventful forced landing in a field adjacent to the river Thames. The magneto separation was due to the failure of the crankshaft stub shaft, from crack propagation due to a torsional fatigue mechanism. Damage to the magneto coil formers indicated that the rotor had been operating out of alignment, increasing the torsional loads within the shaft. The cause of the misalignment was probably due to an impact on the magneto rotor, during engine handling, between a workshop visit in July 2005 and re-installation of the engine.
When close to Tilbury Docks, during a training flight, the magneto rotor separated from the engine, causing it to stop, and damaged the propeller. The instructor carried out an uneventful forced landing in a field adjacent to the river Thames. The magneto separation was due to the failure of the crankshaft stub shaft, from crack propagation due to a torsional fatigue mechanism. Damage to the magneto coil formers indicated that the rotor had been operating out of alignment, increasing the torsional loads within the shaft. The cause of the misalignment was probably due to an impact on the magneto rotor, during engine handling, between a workshop visit in July 2005 and re-installation of the engine.
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