Beech Model 58 Baron Main Landing Gear Actuator The landing gear actuator (p/n 95-810017-23) and motor assembly was removed and replaced with an overhauled unit. While rigging and when gear was extended, 288
Bent, Worn, Missing
The landing gear actuator (p/n 95-810017-23) and motor assembly was removed and replaced with an overhauled unit. While rigging and when gear was extended, the actuator and motor made a slow, deep, grinding noise. Upon inspection, a washer (p/n 105090cr032-4e) was missing. Further investigation revealed the washer was misplaced between the gear actuator housing and spur and pinion gear. The maintenance manual narrative omits installing the washer, though the illustrated parts catalog depicts the washers installation correctly.
Key Takeaways:
- Multiple incidents highlight issues with manufacturing quality or improper assembly/documentation during overhaul, affecting components like landing gear actuators (missing washer due to manual omission), carburetors (manufacturer-supplied unit failure), and engine camshafts (recurring manufacturing problem).
- Wear and fatigue caused other component failures, including frayed aileron control cables from chafing against a fairlead assembly.
- A critical engine accessory driveshaft failed, leading to significant engine oil loss without prior cockpit indication, demonstrating the potential for hidden mechanical issues to escalate quickly.
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