Engine Controls - Electronic Engine Control Software Update / Fan Hub Stator Assembly Booster Outlet Guide Vanes - Replacement
- Published
- Effective
- Deadline
- Replaces
- 2017-09-06
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must update the EEC FADEC software on all GEnx-1B and GEnx-2B engines to a version eligible for installation and replace the specified fan hub stator assembly BOGV on GEnx-2B engines. The BOGV replacement must occur at the next engine shop visit after June 9, 2017, or before further flight, whichever is later. Compliance with the AD is mandatory by July 24, 2020.
Summary
The document titled "Engine Controls - Electronic Engine Control Software Update / Fan Hub Stator Assembly Booster Outlet Guide Vanes - Replacement" is a Federal Aviation Administration (FAA) Airworthiness Directive (AD) addressing General Electric Company GEnx-1B and GEnx-2B model turbofan engines. It mandates updating the electronic engine control (EEC) full authority digital electronic control (FADEC) software and replacing a specific fan hub stator assembly booster outlet guide vane (BOGV) part on GEnx-2B engines to correct an unsafe condition.
What changed
This AD supersedes AD 2017-09-06 by requiring the same EEC software update on GEnx-1B and GEnx-2B engines and the replacement of the affected fan hub stator assembly BOGV on GEnx-2B engines. It adds an option for compliance timing regarding the BOGV removal and clarifies compliance language related to software installation and applicability. The AD also incorporates the latest service bulletin revision for repair options and defines eligible parts for installation.
Why it matters
This AD is critical for aviation professionals to ensure continued airworthiness and safety of aircraft powered by GE GEnx-1B and GEnx-2B engines. Operators and maintenance organizations must comply to mitigate risks associated with unsafe engine control software versions and defective fan hub stator assembly parts. Understanding the updated compliance requirements helps avoid regulatory violations and supports effective maintenance planning.
More for General Electric GEnx
All 24- EASA AD US-2026-14-03Engine - Engine Fuel Distribution - ReplacementAug 10, 2026
- EASA AD US-2026-04-09Turbine Engine - High-Pressure Compressor Stage 5 Blisks - ReplacementMar 5, 2026
- EASA AD US-2025-11-03Engine - High-Pressure Turbine (HPT) Stage 1 and HPT Stage 2 Disks - ReplacementJun 16, 2025
- EASA AD US-2024-25-07Engine - Stages 6-10 Compressor Rotor Spools - InspectionJan 14, 2025
- EASA AD US-2023-17-08Engine - Stages 6—10 Compressor Rotor Spools and Forward Seals - Replacement
Get the next one by email
New ADs and bulletins for General Electric GEnx, summarized like this page, every Monday.