FAAFinal Rule

Special Conditions: The Boeing Company Model 777-9 Airplane; Operation Without Normal Electrical Power

TransportationTechnology

Summary

The FAA has approved special safety rules for Boeing's new 777-9 airplane to allow it to operate safely even if its main electrical power system fails. This regulation ensures that the plane's backup systems can handle critical functions like flying controls and communications when normal power is lost, protecting passenger safety.

Key Points

  • 1Boeing's 777-9 aircraft can now legally fly with backup electrical systems that meet new FAA safety standards, even if the primary power system fails
  • 2The regulation requires the airplane to maintain essential functions during power loss, including flight controls, navigation, and communication with air traffic control
  • 3Airlines operating the 777-9 must follow specific procedures and training requirements related to these backup power systems
  • 4This rule applies only to the Boeing 777-9 model and represents approval after Boeing demonstrated these systems are safe and reliable
  • 5The regulation took effect in May 2025 and allows airlines to deploy this new aircraft model on commercial flights with passenger confidence in its safety features

Key Dates

Published

May 23, 2025

This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.

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