2118966-222

APU ECU
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About this product
The APU Electronic Control Unit 2118966-222 is a component in an aircraft’s Auxiliary Power Unit, responsible for managing fuel flow, temperature, and overall performance of the APU. The APU itself provides electrical and pneumatic power to the aircraft when the main engines are not running, ensuring functionality for avionics, air conditioning, and engine startup. The ECU serves as the intelligent controller that regulates the APU’s operation, optimizing efficiency and safety.
2118966-222 Datasheet
Condition: RP
UOM: EA
Stock Location: Dubai
Hazardous Item: Non-Hazardous Item
Life Limited Part: No
Lead Time: Stock
Certification: Dual Release
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

2118966-222

  • Advanced APU Performance Monitoring – Continuously tracks temperature, pressure, and RPM, ensuring optimal APU functionality during ground operations and backup power situations.

  • Fuel Efficiency Optimization – Precisely controls fuel metering and ignition timing, reducing unnecessary fuel consumption and enhancing aircraft operational efficiency.

  • Integrated Fault Detection and Diagnostics – Features self-diagnostic capabilities that detect faults and anomalies, providing alerts to pilots and maintenance crews for quick troubleshooting and preventive maintenance

  • Rugged and Aerospace-Grade Design – Engineered to withstand extreme operational conditions, including high-temperature fluctuations, vibration, and pressure changes experienced in aviation environments.


  • Supports major passenger aircraft by regulating the APU, ensuring continuous power during pre-flight and taxiing phases.

  • Provides auxiliary power support, enhancing operational flexibility when engines are off or during ground operations.

  • Ensures uninterrupted backup power for avionics, navigation, and cargo loading systems.

  • Keeps critical aircraft systems functional in the event of engine failure or primary power loss.


  • What role does the APU ECU play in an aircraft's operation?

The ECU manages and optimizes the APU, ensuring stable power generation for aircraft systems, climate control, and electrical needs when the main engines are not in use.

  • How often should the APU ECU be inspected or serviced?

Regular inspections are recommended during scheduled aircraft maintenance checks (such as C-checks and D-checks) to ensure reliability and prevent potential malfunctions.

  • Is this APU ECU compatible with all aircraft?

The 2118966-222 model is designed for specific aircraft APUs. Always verify compatibility with the aircraft maintenance manual (AMM) or consult the manufacturer before installation.


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