Engine - High Pressure Compressor Rotor Stage 7-9 Spool - Inspection
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators and maintenance organizations must perform fluorescent penetrant inspections on all affected HPC rotor stage 7-9 spools at the next shop visit after March 27, 2023. If any defects are found, the spool must be replaced with a part eligible for installation. Comments on the directive are accepted until April 24, 2023.
Summary
The Federal Aviation Administration's Airworthiness Directive 2023-04-19 addresses certain General Electric Company GE90-110B1 and GE90-115B turbofan engines. It mandates fluorescent penetrant inspections (FPI) on the high-pressure compressor rotor stage 7-9 spools due to incomplete inspections during overhaul. This directive targets specific spool part numbers and serial numbers identified in GE Service Bulletin 72-0905.
What changed
This new airworthiness directive introduces a mandatory FPI inspection requirement for affected HPC rotor stage 7-9 spools at the next engine shop visit. Depending on inspection results, affected parts must be replaced with eligible spools. It is a newly adopted rule prompted by a manufacturer investigation revealing missed inspections during overhaul.
Why it matters
This directive is critical for aviation maintenance and compliance teams to prevent potential in-flight engine shutdowns caused by undetected cracks on HPC rotor spools. Ensuring compliance reduces the risk of engine damage and enhances flight safety. Operators and MROs must verify inspection history and perform required inspections to maintain airworthiness.
More for General Electric GE90
All 19- EASA AD US-2025-25-07Turbine Engine - High-Pressure Turbine (HPT) Stage 1 and HPT Stage 2 Disks - ReplacementJan 9, 2026
- EASA AD US-2025-07-10Engine Controls - Engine Indicating and Crew Alerting System - Dispatch Prohibition; Full Authority Digital Engine Control (FADEC) Integrated Circuit Microprocessor - Replacement; Electronic Engine Control FADEC - Software UpgradeMay 15, 2025
- EASA AD US-2024-06-15[Correction] Engine - Interstage High-Pressure Turbine Rotor Seal - InspectionsMay 14, 2024
- EASA AD US-2023-26-07
Get the next one by email
New ADs and bulletins for General Electric GE90, summarized like this page, every Monday.