Airworthiness Directive · Amendment 39-23225 · Engine
Rolls-Royce Deutschland Ltd & Co KG Engines
This AD applies to Rolls-Royce Deutschland Ltd & Co KG Model Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-CE, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H engines as identified in European Union Aviation Safety Agency (EASA) AD 2024-0122, dated June 28, 2024 (EASA AD 2024-0122).
The FAA is adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-CE, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H engines. This AD was prompted by a determination made by the manufacturer that a high-pressure compressor (HPC) mini-disc anti-rotation block could possibly release into the HPC assembly stage 5 and 6 discs and the cone rotor rear shaft (HPC rear drum) during an engine operation. This AD requires repetitive borescope inspections (BSIs) of the HPC rear drum cavity and cavities between each HPC rotor disc, and depending on the results of inspection, removal of the engine from service. This AD also allows an alternative method of complying with the repetitive BSIs if certain actions are accomplished. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraphs (h) and (i) of this AD, perform all required actions within the compliance times specified in, and in accordance with, EASA AD 2024-0122.
(1) Where EASA AD 2024-0122 requires compliance from its effective date, this AD requires using the effective date of this AD.
(2) Where EASA AD 2024-0122 specifies to “contact Rolls-Royce Deutschland Ltd & Co KG,” this AD requires replacing that text with “contact the Manager, AIR-520 Continued Operational Safety Branch, FAA; or EASA; or the Rolls-Royce Deutschland Ltd & Co KG EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature.”
(3) Where the material referenced in EASA AD 2024-0122 specifies “REJECT the engine”, this AD requires replacing that text with “remove the engine from service”.
(4) This AD does not adopt the “Remarks” paragraph of EASA AD 2024-0122.
Although the service material referenced in EASA AD 2024-0122 specifies to submit certain information to the manufacturer, including capturing photos and videos, this AD does not include those requirements.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
