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5060003-101 – Parker Aerospace Left-Hand (LH) Air Assembly Valve Controller
Available now on the Airparts.aero Marketplace.
The 5060003-101 is a high-precision, flight-critical pneumatic control component manufactured by Parker Aerospace (Parker Hannifin). Designed specifically for the left-hand (LH) air management system, this unit functions as the primary "brain" for regulating the flow and pressure of bleed air extracted from the aircraft's engine or Auxiliary Power Unit (APU). The 5060003-101 is a modular controller that interfaces with pneumatic shut-off and pressure-regulating valves to manage cabin pressurization, anti-ice systems, and environmental control (ECS) packs.
Engineered to operate in the harsh thermal environments of an aircraft’s mid-fuselage or wing-root areas, the 5060003-101 utilizes a combination of mechanical diaphragm logic and electrical solenoid interfaces. It ensures that high-pressure, high-temperature bleed air is modulated to safe operating levels before entering the air conditioning cycle, protecting the airframe from over-pressurization and thermal damage.
Key Features
Left-Hand (LH) System Specific: Calibrated for the port-side pneumatic manifold, ensuring correct signal feedback to the cockpit's overhead bleed-air panel.
Dual-Mode Regulation: Capable of managing both "Open/Closed" shut-off functions and incremental pressure regulation, providing a steady mass-flow rate regardless of engine power settings.
Failsafe Architecture: Designed to automatically transition to a "Safe" state (typically closed or "Full-Open" depending on the specific system logic) in the event of a loss of electrical signal or pneumatic reference pressure.
High-Temperature Resilience: Constructed from specialized alloys and high-grade Viton or Silicone seals capable of withstanding continuous exposure to bleed-air temperatures exceeding 450°F (232°C).
Precision Feedback Transducers: Includes integrated sensors that provide real-time "Valve Position" data to the aircraft’s Flight Management System (FMS) and Centralized Maintenance Computer (CMC).
Technical Specifications
Part Number: 5060003-101
Manufacturer: Parker Aerospace / Parker Hannifin
Component Type: Pneumatic Valve Controller / Air Assembly
Position: Left Side (LH)
Operating Medium: Compressed Engine Bleed Air
Input Signal: 28V DC (Electrical) / Pneumatic Reference
Certification: FAA-PMA / TSO-C149 (Aircraft Gas Turbine Starter/Pneumatic Systems)
Application Group: Pneumatics / Air Conditioning (ATA 36 / ATA 21)
Aircraft Compatibility
Bombardier Challenger & Global Series: Frequently utilized in the bleed-air manifold systems of mid-to-large business jets.
Regional Transport Aircraft: Found in various Embraer and De Havilland pneumatic architectures.
Note: The 5060003-101 is a "handed" part. Always verify the part number against your aircraft's Illustrated Parts Catalog (IPC) Section 36-11 to ensure it is the correct controller for the LH manifold of your specific serial number.
Applications
The 5060003-101 is utilized for Pneumatic Energy Management. Its primary roles include:
Bleed Air Isolation: Shutting off air flow to the LH wing in the event of a detected leak (Wing Anti-Ice Leak Detection).
ECS Pack Control: Regulating the volume of air sent to the LH air conditioning pack to maintain cabin temperature.
Cross-Bleed Management: Assisting in the balancing of pneumatic pressure between the LH and RH engines during cross-bleed engine starts.
Why Choose 5060003-101?
Choosing a genuine Parker 5060003-101 ensures the Thermal Integrity of your pneumatic system. Inexpensive or sub-standard controllers can suffer from "valve hunting"—a condition where the valve rapidly oscillates, causing pressure surges that can damage the ECS packs or trigger nuisance "Bleed Air Trip" warnings in the cockpit. The 5060003-101 is calibrated for a specific damping ratio, ensuring smooth transitions and extending the life of the high-pressure pneumatic ducting.
The 5060003-101 operates on the principle of Pneumatic Feedback Logic. It monitors the Downstream Pressure ($P_2$) relative to a calibrated Reference Pressure ($P_{ref}$). If $P_2$ exceeds the target threshold, the controller modulates the control air to the valve actuator, using the air's own energy to move the piston or diaphragm. This "self-contained" logic reduces the electrical load on the aircraft's DC bus. The physics of the internal Orifice Plate within the 5060003-101 are critical; they define the "Time Constant" of the valve's response, preventing catastrophic "Pressure Spikes" that could occur during rapid engine throttle movements.
Note: This is a flight-critical pneumatic component. Installation must be performed by a certified A&P/AME. Prior to installation, the pneumatic ducting must be inspected for debris (FOD). Post-installation, a "Leak Check" and "Functional Cycle Test" are mandatory. Ensure the "LH" designation is verified; installing an LH controller on an RH manifold may result in reversed cockpit indications or system logic errors.
