2025-05296Rule

FAA Orders Boeing 777 Autopilot Software Update

Published Date: 3/28/2025

Rule

Summary

If you fly certain Boeing 777 planes, heads up! The FAA found a problem where the autopilot might give tricky landing signals, making the plane descend too fast. To fix this, airlines need to update the autopilot software soon, keeping flights safe without breaking the bank.

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

Required autopilot software update for certain 777s

If an operator uses Boeing Model 777-200, -200LR, -300, -300ER, or 777F airplanes, the FAA requires installing new autopilot flight director computer (AFDC) operational program software and performing a software configuration check. The directive responds to a glideslope (G/S) beam anomaly that resulted in a higher-than-expected descent rate during an ILS approach and could cause misleading flight director guidance after autopilot disconnect. The FAA issued this airworthiness directive to address that unsafe condition on those airplanes.

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Key Dates

Published Date
3/28/2025

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
Federal Aviation Administration
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