Broken And Cracked

Before a touch-and-go landing, the pilot noticed did not receive a gear-down light for the left main gear. A safe landing was made, with minor damage and no injuries. Upon examination, one of the left main landing gear actuator hydraulic fittings (p/n: MS20822) was found broken flush with the actuator housing. Examination of the gear well and the general layout of components show the flex hose may have been stress loaded while the gear was retracted.

Key Takeaways:

• Various aircraft experienced mechanical component failures, including a broken landing gear hydraulic fitting possibly due to stress and a camshaft fracture at low operating hours.
• A structural failure in a Quicksilver Sport 2S, leading to a crash, was attributed to improper installation of a lift strut eyebolt with insufficient thread engagement.
• Recurring issues were noted with overhauled Continental starter adapters (linked to clutch spring failure and suspected run-on) and a specific Dukes fuel pump model, which exhibited a high failure rate in Diamond DA40s.

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