45AS88830 — Landing Light Actuator Repair & Overhaul

Component Overview

A landing light actuator is an electromechanical extend/retract device that deploys and stows a retractable landing or taxi light, positioning the lamp into the slipstream for approach and withdrawing it to reduce drag and protect the lens in cruise. Falling under aircraft actuation, it converts motor torque through a gear train and ball or acme screw into linear or rotary travel, with internal limit switches signaling full-extend and full-retract positions. Service demands are driven by gear and screw wear, brush and commutator erosion in DC motors, hardened or dried lubricant, backlash, and limit-switch contact degradation that produces sluggish travel, stalling, or failure to seat. Moisture intrusion, corrosion, and worn end stops are common findings that drive overhaul.

Aircraft Application

Part number 45AS88830 (Landing Light Actuator) is installed on the B400 / MU-300. QTC supports operators and MROs servicing this platform with certified repair and overhaul.

Our Repair Capability

QTC repairs and overhauls 45AS88830 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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Frequently Asked Questions