Falcon 2000EX Series: SB F2000EX-500 Addresses 5G Radio Altimeter Interference Risks

March 2025

In response to the rapidly evolving 5G network rollout, an important Service Bulletin (SB) has been issued for operators of the Falcon 2000EX series. The SB, titled 5G Radio Altimeter Filter Installation (SB F2000EX-500), addresses potential interference risks caused by 5G emissions on aircraft radio altimeter systems. This SB highlights the aircraft manufacturer's proactive approach in ensuring compliance with new regulatory requirements, safeguarding radio altimeter functionality under the influence of 5G signals.

Applicable Aircraft Models and Serial Numbers:

This SB applies to the following Falcon 2000EX variants:

• F2000EX EASy, F2000LX, F2000LXS, F2000DX, and F2000S.
• Specific serial number ranges:
  • F2000EX: Serial numbers 6 and 28 through 600
  • F2000DX: Serial numbers 601 through 604
  • F2000S: Serial numbers 702 and subsequent

Aircraft lacking modification codes M5144 or M-OPT382 (EASA and FAA approved) are required to undergo this modification to transition to radio altimeter tolerant configuration.

Modification Details

The modification involves installing band-pass filters between the radio altimeter antennas and transceivers. This will effectively block 5G signal interference, ensuring accurate altimeter readings. Specifically:

• One filter will be installed for Radio Altimeter 1.
• Aircraft equipped with a second altimeter will require an additional filter for Radio Altimeter 2.

We recommend that this modification be implemented during your aircraft’s next 12-month or 800 flight-hour inspection.

For more information or to schedule your software update to ensure compliance with this SB, you can contact your nearest Duncan Aviation Satellite (https://duncanaviation.aero/locations/#satellites), call me at +1 402.470.4670, or email Mark.Winter@DuncanAviation.com.