Summary
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-100, -100B, -100B SUD, -200B, -200C, - 200F, -300, -400, -400D, -400F, 747SP, and 747SR series airplanes. This AD was prompted by reports of corrosion damage found on a certain satellite communications (SATCOM) high gain antenna adapter plate. This AD requires repetitive detailed inspections (DETs) of the SATCOM high gain antenna adapter plate for corrosion and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2025-3422
Document Number
2026-10803
Type
Rule
Publication Date
May 29, 2026
Effective Date
July 6, 2026
Affected Manufacturer
The Boeing Company
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2025-3422
Official Documents
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