[Correction] Engine — Low Pressure Turbine Seal Panel — Modification / Inspection
- Published
- Effective
- Replaces
- 2021-0056
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must remove and modify Group 1 engines with affected parts before the parts exceed 6,500 flight cycles or within 30 days of the AD's effective date, whichever is later. During each qualified shop visit, inspect the outer weld of affected parts and replace any cracked parts before engine release. Installation of affected parts is restricted to serviceable parts only, and Group 2 engines must not have affected parts installed.
Summary
EASA Airworthiness Directive 2025-0190 is a corrective AD addressing the Rolls-Royce RB211 Trent 970-84, Trent 972-84, and Trent 972E-84 engines installed on Airbus A380 aircraft. It mandates modification and inspection of the low pressure turbine (LPT) seal panels to prevent potential cracking and failure. The AD applies to specific LPT seal panel part numbers FW33370, FW52161, and KH20207.
What changed
This AD supersedes EASA AD 2021-0056 and corrects a typo in the effective date. It introduces a reduced life limit of 6,500 flight cycles for affected LPT seal panels and requires modification of engines before this limit or within 30 days after the effective date. It also mandates repetitive inspections during qualified shop visits and allows installation of only serviceable parts under defined conditions.
Why it matters
This directive is critical for operators and maintenance organizations to prevent LPT seal panel failure, which could lead to release of high-energy debris and potential damage or loss of aircraft control. Compliance ensures continued airworthiness and safety of affected engines and aircraft. It also provides clear instructions for inspections, modifications, and part installations to maintain regulatory compliance.
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