754909-1 — Actuator Assembly Repair & Overhaul

Component Overview

An actuator assembly is the powered output device within an aircraft's actuation system, converting an electrical, hydraulic, or pneumatic input into controlled linear or rotary motion to position a load such as a valve, flap, door, or flight-control surface. It typically integrates a drive element, a gear or screw mechanism, mechanical stops or limit features, and a position-feedback or rigging provision, all enclosed in a housing with seals and bearings. As a motion-producing unit, its primary function is to deliver repeatable, accurate travel against system loads. Common degradation modes driving repair include worn bearings and gear backlash, seal leakage, scored or galled output members, contaminated or pitted internal surfaces, electrical connector or motor faults, and drift in feedback elements, all of which degrade positioning accuracy and response over service life.

Aircraft Application

754909-1 is used across multiple aircraft platforms. Contact QTC with your aircraft type and we'll confirm applicability and repair scope.

Our Repair Capability

QTC repairs and overhauls 754909-1 to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our team — including former OEM actuation engineers — performs teardown, inspection, cleaning, component replacement, functional testing, and certification, returning a serviceable unit with the appropriate airworthiness release. We also develop repairs for rejected and beyond-economic-repair (BER) hardware.

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Related Parts

Other actuator assembly part numbers we repair — view all Actuator Assembly parts →

Frequently Asked Questions