Squawk Box

July 2008 Issue

Cracking And Sticking

The following information is derived from the FAA’s Service Difficulty Re-ports and Aviation Maintenance Alerts.

The crew heard a noise when the landing gear was retracted. The left landing gear remained in a partially retracted position, unable to retract or extend. A successful gear-up landing ensued. The l/h landing gear actuator body (p/n 128101-3) had cracked at the forward mounting bolt hole, allowing the actuator bore to open enough that the piston would not engage the pivot sector gear sufficiently to move the landing gear.

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