# 2026-15409: FAA Orders Brake-Control Checks After Bombardier Tire Burst

2026-15409, Airworthiness Directives; Bombardier, Inc., Airplanes, is a Federal Register rule from Transportation Department, Federal Aviation Administration published 2026-07-30, effective 2026-09-03; PRIA reads it as touching household money (as of 2026-10-28).

- Canonical: https://policyrisk.com/federal-register/2026-15409
- As of: 2026-10-28
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-15409
- Title: Airworthiness Directives; Bombardier, Inc., Airplanes
- Type: Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 47933
- Published: 2026-07-30
- Effective: 2026-09-03
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: 2120-AA64
- Last updated: 2026-10-28

## In one line

FAA Orders Brake-Control Checks After Bombardier Tire Burst

## Summary

If you fly or work with Bombardier BD-700-1A10 or BD-700-1A11 planes, listen up! The FAA found a problem after a landing gear tire burst and now requires checking and replacing certain brake control units to keep everyone safe. This rule kicks in on September 3, 2026, so get ready to inspect and swap parts before then—safety first, and no surprise costs mentioned!

## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. This AD was prompted by an in-service event where a main landing gear tire burst upon landing. This AD requires an inspection to determine if an affected brake control unit (BCU) is installed and replacement of affected BCUs. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.

## Effects PRIA read

- Mandatory BCU inspection and replacement: cost, high. If you operate Bombardier Model BD-700-1A10 or BD-700-1A11 airplanes, you must inspect to see whether brake control unit (BCU) P/N GW415-7125-7 is installed and replace affected BCUs with BCU P/N GW415-7125-9. The rule also prohibits installing the affected BCU P/N GW415-7125-7 and is effective Sep…
- Maintenance-records allowed instead of physical check: benefit, medium. The FAA allows you to use a review of airplane maintenance records instead of a physical inspection to verify whether BCU P/N GW415-7125-7 is installed, as long as the part number can be conclusively determined from those records. This exception is specified in paragraph (h)(2) of the AD.
- FAA cost estimates for compliance and replacements: cost, high. The FAA estimates the AD affects 42 U.S.-registered airplanes. The estimated cost for the required verification action is 2 work-hours × $85/hour = $170 per airplane (total $7,140 for U.S. operators), and on-condition replacement costs could be up to $430,259 per product (parts up to $430,089 plus…

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## Sources
- [2026-15409 on federalregister.gov](https://www.federalregister.gov/documents/2026/07/30/2026-15409/airworthiness-directives-bombardier-inc-airplanes)
- [2026-15409 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-07-30/pdf/2026-15409.pdf)

## Related
- [Previous: 2026-15377, Air Plan Approval; California; San Joaquin Valley Air Pollution Control District](https://policyrisk.com/federal-register/2026-15377)
- [Next: 2026-15410, Airworthiness Directives; Airbus SAS Airplanes](https://policyrisk.com/federal-register/2026-15410)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-15409 (as of 2026-10-28).