2025-10759Proposed Rule

FAA Orders Boeing 787 Transponder Fixes to Prevent Signal Loss

Published Date: 6/13/2025

Proposed Rule

Summary

If you fly or work with Boeing 787 planes, heads up! The FAA wants to fix a problem where the plane’s transponder can lose signal because of interference. They’re asking to swap out some key hardware soon to keep flights safe and smooth, which might cost some time and money but is totally worth it.

Analyzed Economic Effects

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

Boeing 787 transponder hardware replacement

The FAA proposes a new airworthiness directive for certain Boeing Model 787-8, 787-9, and 787-10 airplanes. The proposed AD would require replacing the left and right integrated surveillance system processor unit (ISSPU) hardware after reports that transponders lost signal in the presence of continuous wave (CW) interference and did not meet the minimum operational performance standards (MOPS) requirement.

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Key Dates

Published Date
6/13/2025

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
Federal Aviation Administration
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