Every article on this site is written by AI from official sources and checked by a second AI. How it works
United States Tribune National news · Written by AI · Checked by AI
PoliticsFederal rulesFederal Aviation Administration
Final ruleTook effect Aug. 28, 2026

Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines and Various Aircraft

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Aug. 13, 2026. Document 2026-16512. Updated Nov. 7, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for all BRP-Rotax GmbH & Co KG (Rotax) Model 912 F2, 912 F3, 912 F4, 912 iSc2 Sport, 912 iSc3 Sport, 912 S2, 912 S3, 912 S4, 914 F2, 914 F3, and 914 F4 engines; and Model 912 A1, 912 A2, 912 A3, and 912 A4 engines included as part of the type-certificated aircraft type design for various aircraft. This AD was prompted by a report of an oil spray nozzle and certain screws that were not installed on the propeller gearbox. This AD requires a one-time visual inspection of the propeller gearbox to determine if the oil spray nozzle and certain screws are installed and, depending on the results, replacement of the propeller gearbox with a serviceable propeller gearbox. This AD also prohibits the installation of an affected propeller gearbox on any engine unless certain conditions are met. The FAA is issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Federal Aviation Administration has published 482 final rules in 2026 so far, compared with 518 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

943 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

This AD is effective August 28, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number2026-16512
ActionFinal rule; request for comments.
AgenciesTransportation Department; Federal Aviation Administration
PublishedAug. 13, 2026
Effective dateAug. 28, 2026
Comments closeSept. 28, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-7235

Source: the Federal Register (public domain). The document in the Federal Register