June 2012 Issue
The following information is derived from the FAAs Service Difficulty Reports and Aviation Maintenance Alerts.
The nosegear collapsed on landing. The nosegear actuator was removed and tested in a controlled environment. When the actuator was cold-soaked, the microswitch (p/n 1CH16) failed to activate properly, giving a false indication the gear was down and locked. Due to gear failure, both aircraft propellers struck the ground, causing sudden stoppage to the engines. The aircraft also suffered structural damage to the nose section.
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