---
schema_version: '1.0'
id: government-20260730-4b77a2
content_kind: government-document
url: https://www.federalregister.gov/documents/2026/07/30/2026-15411/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c
url_hash: 4b77a209a0dd91b4fde4130b25d5497447cecaa9e4d125960601d87980cc7b75
canonical_url: https://www.federalregister.gov/documents/2026/07/30/2026-15411/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c
source: us-federal-register
category: government/us
category_raw: Rule
country: us
region: us
tags:
- Air transportation
- Aircraft
- Aviation safety
- Incorporation by reference
- Safety
lang: en
published_at: '2026-07-30T00:00:00Z'
fetched_at: '2026-07-30T09:01:33.084079Z'
updated_at: '2026-07-30T09:19:20Z'
status: published
content_hash: 2f9f28e0d5b9cfceef6f1d16c6e72104cf10045671a582a4a2326d39fd66a6b3
content_changed_at: null
license_note: full
license_basis: public-domain-17usc105
body_available: false
attribution: 'Source: Office of the Federal Register, National Archives and Records
  Administration'
license_rule: source:us-federal-register
summary: The FAA is superseding Airworthiness Directive (AD) 2025-06- 01, which applied
  to all Airbus Canada Limited Partnership Model BD- 500-1A10 and BD-500-1A11 airplanes.
  AD 2025-06-01 required revising the existing airplane flight manual (AFM) to incorporate
  the procedures for the flightcrew to manually isolate the opposite functional engine
  in the event of an engine bleed duct large leak condition. Since the FAA issued
  AD 2025-06-01, an electronic engine control (EEC) software update has been developed
  to address the unsafe condition. This AD continues to require the actions in AD
  2025-06-01 and requires installing a certain EEC software update on both engines.
  This AD also removes airplanes from the applicability. The FAA is issuing this AD
  to address the unsafe condition on these products.
summary_source: official
summary_en: The FAA is superseding Airworthiness Directive (AD) 2025-06- 01, which
  applied to all Airbus Canada Limited Partnership Model BD- 500-1A10 and BD-500-1A11
  airplanes. AD 2025-06-01 required revising the existing airplane flight manual (AFM)
  to incorporate the procedures for the flightcrew to manually isolate the opposite
  functional engine in the event of an engine bleed duct large leak condition. Since
  the FAA issued AD 2025-06-01, an electronic engine control (EEC) software update
  has been developed to address the unsafe condition. This AD continues to require
  the actions in AD 2025-06-01 and requires installing a certain EEC software update
  on both engines. This AD also removes airplanes from the applicability. The FAA
  is issuing this AD to address the unsafe condition on these products.
provenance:
  doc_id: 2026-15411
  doc_id_scheme: fr_docnum
  issuer:
  - Transportation Department
  - Federal Aviation Administration
  doc_type: Rule
  subtype: null
  action: Final rule.
  significant: false
entities:
- name: AI Safety Act
  type: event
- name: Cognitive Bias, AI Scaling Rule
  type: UNKNOWN
key_facts: []
related: []
related_auto:
- name: 米議会
  type: organization
  weight: 1.0
- name: AI産業
  type: concept
  weight: 1.0
- name: Research Area
  type: UNKNOWN
  weight: 1.0
title: Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate
  Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.)
  Airplanes
---

# Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

## TL;DR
The FAA is superseding Airworthiness Directive (AD) 2025-06- 01, which applied to all Airbus Canada Limited Partnership Model BD- 500-1A10 and BD-500-1A11 airplanes. AD 2025-06-01 required revising the existing airplane flight manual (AFM) to incorporate the procedures for the flightcrew to manually isolate the opposite functional engine in the event of an engine bleed duct large leak condition. Since the FAA issued AD 2025-06-01, an electronic engine control (EEC) software update has been developed to address the unsafe condition. This AD continues to require the actions in AD 2025-06-01 and requires installing a certain EEC software update on both engines. This AD also removes airplanes from the applicability. The FAA is issuing this AD to address the unsafe condition on these products.

## Key Points
- Air transportation / Aircraft / Aviation safety / Incorporation by reference / Safety

## Details
(本文なし。リンク先参照)

## Source
元記事: [Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes](https://www.federalregister.gov/documents/2026/07/30/2026-15411/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c) — published 2026-07-30T00:00:00Z