Airworthiness Directive · Amendment 39-22725 · Turbine engine compressor section
Rolls-Royce Deutschland Ltd & Co KG Engines
This AD applies to Rolls-Royce Deutschland Ltd & Co KG Model RB211-524H-36 and RB211-524H-T-36 engines.
The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211-524H-36 and RB211-524H-T-36 engines. This AD was prompted by reports of engine surges and a subsequent investigation which found that the surges may have been caused by material loss on the high-pressure compressor (HPC) stage 1 and stage 2 rotor path liners. This AD requires borescope inspections (BSIs) of the HPC stage 1 and stage 2 rotor path liners for material loss, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. 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, European Union Aviation Safety Agency AD 2024-0069-E, dated March 12, 2024 (EASA AD 2024-0069-E).
(1) Where EASA AD 2024-0069-E refers to its effective date, this AD requires using the effective date of this AD.
(2) Where EASA AD 2024-0069-E specifies compliance “Within 18 days after the effective date of this AD,” for this AD, replace that text with “Within 5 days after the effective date of this AD.”
(3) Where EASA AD 2024-0069-E specifies to “contact Rolls-Royce Deutschland Ltd & Co KG,” for this AD, replace 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)”
(4) This AD does not adopt the Remarks paragraph of EASA AD 2024-0069-E.
Although the service information referenced in EASA AD 2024-0069-E specifies to submit certain information to the manufacturer, this AD does not include that requirement.
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
