APU Cleaning System

Standardized and Sustainable Cleaning for APU Compartments

The RH Aero Systems APU Cleaning System is the first purpose-built solution designed to standardize and accelerate APU compartment and air-intake cleaning. It replaces manual AMM methods—sponges, spray bottles, and uncontrolled mixtures—with a controlled, two-mode steam process. The result is repeatable cleaning quality, reduced downtime, and full environmental compliance. Compatible with Airbus A320-family aircraft, the system eliminates the dependency on hangar infrastructure and enables preventive or scheduled cleaning directly at the gate, airside, or remote stands.

Keyfeatures

Two-Mode Steam Process – Operates in Wash Mode (1:10 agent ratio) and Rinse Mode (steam only) for consistent, residue-free cleaning.

Environmental Compliance – Integrated wastewater capture and filtration minimize ecological impact and chemical exposure.

Rapid Turnaround – Quick setup and 5-minute drying cycles reduce overall maintenance time by up to 80 %.

Operator Flexibility – Deployable at gates, airside, or remote stands without hangar access.

Scalable System Architecture – Available in three configurations: Cleaning Unit, Complete System with lift, or fully autonomous unit with onboard power.

Highlights

The RH Aero APU Cleaning System delivers a controlled, repeatable process that cuts downtime, chemical use, and air-quality events across A320 fleets.

Airbus

A318 • A319 • A320 • A321

Application Cases

Preventive & Scheduled Cleaning – APU air intake and compartment cleaning during routine base or line maintenance.

AOG & Ramp Operations – Fast, mobile deployment to restore airflow and air quality without hangar dependency.

Configuration Options

Safety & Operation

Steam temperature limited to ≤ 100 °C and pressure ≤ 1 bar ensures safe cleaning of sensitive components.

Process validated against AMM 49-16-00-100-005-A and 49-00-00-100-003-A requirements.

Ardrox 6085 cleaning agent applied in controlled 1:10 dilution.

Documented cycles guarantee repeatability and compliance with OEM cleaning intervals.

Filtration system prevents chemical release to the environment.

Mobility & Transport

Compact design fits ground support vehicles and maintenance trailers.

Available lift-platform variant allows direct access to APU compartments.

Optional power-generator package ensures full autonomy for remote operations.

Durability & Corrosion Protection

Stainless-steel and treated-aluminum components resist heat, moisture, and chemical exposure.

Sealed systems prevent contamination and corrosion from cleaning fluids.

Low-maintenance construction ensures consistent performance over repeated use.

Why RH Aero?

Controlled Process—Proven Efficiency

RH Aero Systems redefines APU maintenance with a purpose-built, OEM-aligned cleaning platform. Our steam-based process combines precision, repeatability, and sustainability—delivering measurable reductions in downtime, labor cost, and air-quality events while extending APU component life across global fleets.