2021-19355: Airworthiness Directives; The Boeing Company Airplanes
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The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to adopt a new airworthiness directive (AD) that would have applied to certain The Boeing Company Model 787-8, 787-9, and 787- 10 airplanes. The NPRM was prompted by reports that very high frequency (VHF) radio frequencies transfer between the active and standby windows of the tuning control panel (TCP) without flightcrew input. The NPRM would have required updating the TCP operational software (OPS) and performing a software configuration check. Since issuance of the NPRM, the FAA determined that the TCP OPS version specified in the NPRM does not correct the unsafe condition. The FAA intends to propose new rulemaking to require updated software. Accordingly, the NPRM is withdrawn.
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
Rulemaking docket
We haven’t pulled this rulemaking’s full docket yet. View docket FAA-2021-0255 on Regulations.gov →
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