FR 2025-03081

Overview

Title

Airworthiness Directives; The Boeing Company Airplanes

Agencies

ELI5 AI

Imagine some special radios on certain Boeing airplanes changing channels all by themselves, which could make it hard for the pilots to talk to the people who help guide their flights. The folks in charge want to fix this by updating the radio's computer instructions to make flying safer.

Summary AI

The Federal Aviation Administration (FAA) is proposing a new airworthiness directive for certain Boeing 787 airplanes. This comes after reports that the planes' radio frequencies change without the crew's input, which could cause missed communications with Air Traffic Control. The proposed rule would require updates to the operational software and a check to ensure proper configuration, as these changes aim to prevent potential safety issues like loss of communication or even collisions. The FAA is asking for public comments on this proposal by April 14, 2025.

Abstract

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This proposed AD 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 uncommanded frequency changes could result in missed communications between the flightcrew and Air Traffic Control. This proposed AD would require updating the TCP operational software (OPS) and performing a software configuration check. The FAA is proposing this AD to address the unsafe condition on these products.

Citation: 90 FR 10703
Document #: 2025-03081
Date:
Volume: 90
Pages: 10703-10705

AnalysisAI

Summary of the Document

The document in question is a proposed rule by the Federal Aviation Administration (FAA), which aims to address a technical issue affecting certain Boeing 787 aircraft models. Specifically, it targets the unintended transfer of very high frequency (VHF) radio frequencies between active and standby windows on the aircraft’s tuning control panel (TCP). Such uncommanded frequency changes could lead to missed communications between the flightcrew and Air Traffic Control, raising concerns over operational safety. To resolve this, the FAA proposes an airworthiness directive that would necessitate software updates and configuration checks on the affected aircraft models.

Significant Issues and Concerns

One of the pertinent issues noted is the direction given to use Boeing-specific resources for compliance, which could be perceived as preferential toward Boeing. The reliance on Boeing’s portals and contact information raises concerns about equitable access for all stakeholders and potential biases in information dissemination.

Moreover, the document does not offer a detailed cost analysis of the proposed software updates. This omission might concern stakeholders regarding the financial burden these changes could impose on airlines, particularly smaller operators who could be disproportionately affected by unforeseen costs.

The document also employs technical jargon and references specific Boeing service bulletins. Such language could be difficult for a general audience to understand, thereby potentially limiting public engagement and effective commentary during the proposal’s feedback period.

Additionally, there is a lack of statistical data or case studies provided to substantiate the urgency of addressing the software issue. While the notice outlines possible severe consequences like missed communications, more concrete data might help in understanding the stakes involved.

Impact on the Public and Specific Stakeholders

Broadly, the directive seeks to enhance aviation safety, which is in the public interest. By ensuring consistent communication between aircraft and Air Traffic Control, the proposal aims to mitigate risks of potentially catastrophic events, such as runway incursions or collisions. Consequently, the traveling public stands to benefit from improved safety measures.

However, for specific stakeholders like airlines, particularly those less resourced, there could be negative financial implications. Smaller airlines or operators who may not be already subscribed to Boeing’s services might find it challenging to comply with the directive due to the resources required for the software update and its associated logistics.

In terms of information accessibility, the complexity of some sections, such as the procedures for alternative compliance methods, may deter effective participation from individuals without specialized expertise. This could limit the quality of public commentary and result in less informed regulatory outcomes.

Overall, while the main objective of the proposed directive is enhancing safety—a goal that predominantly aligns with public interest—it surfaces several practical and financial considerations that merit thorough evaluation and discussion during the rulemaking process.

Issues

  • • The document references specific Boeing materials and provides contact information for Boeing Commercial Airplanes for further details. While it is necessary for compliance, this could potentially be seen as favoring Boeing as it directs stakeholders to engage directly with the company.

  • • The notice involves updating operational software in aircraft, but there's no detailed cost analysis provided for this update, which might be a concern regarding the financial impact on airlines.

  • • The document includes technical jargon and references to specific Boeing service bulletins, which can be difficult for laypersons to understand, potentially limiting public engagement or comment.

  • • The language regarding 'Alternative Methods of Compliance (AMOCs)' is complex and may be difficult for individuals without a legal or aviation background to fully grasp.

  • • There is an assumption that all stakeholders have access to 'myboeingfleet.com', which could be a limitation for smaller airlines or operators not subscribed to the service.

  • • The document briefly mentions the potential severe consequences of the software issue (e.g., missed air traffic control communications), but it does not provide any statistical data or case studies to support the urgency of the compliance.

Statistics

Size

Pages: 3
Words: 2,851
Sentences: 82
Entities: 257

Language

Nouns: 945
Verbs: 233
Adjectives: 109
Adverbs: 23
Numbers: 186

Complexity

Average Token Length:
4.76
Average Sentence Length:
34.77
Token Entropy:
5.62
Readability (ARI):
21.75

Reading Time

about 11 minutes