AD-9320-205 — Hydraulic Filter Housing Repair & Overhaul

Component Overview

A hydraulic filter housing is a pressure-containing manifold body in the hydraulic system that holds the filter element and provides the porting, bypass, and indication features needed to keep system fluid clean. Hydraulic fluid is routed through the housing and filter media to remove particulate contamination, protecting pumps, valves, and actuators, while an integral bypass and differential-pressure indicator manage clogged-element conditions. Typical degradation includes thread and sealing-surface wear, O-ring groove damage and external or internal leakage, corrosion and pitting of bores, cracking from pressure cycling and vibration, and worn or sticking bypass valve and indicator mechanisms. These conditions drive disassembly, inspection of bores and threads, seal replacement, proof and leak testing, and overhaul to restore pressure integrity.

Aircraft Application

Part number AD-9320-205 (Hydraulic Filter Housing) is installed on the Lockheed L-1011. QTC supports operators and MROs servicing this platform with certified repair and overhaul.

Our Repair Capability

QTC repairs and overhauls AD-9320-205 to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our team — including former OEM hydraulics 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 hydraulic filter housing part numbers we repair — view all Hydraulic Filter Housing parts →

Frequently Asked Questions