Engine – Low Pressure Turbine Exhaust Case and Support Assembly (Tail Bearing Housing) – Inspection / Replacement
- Published
- Effective
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What to do
Operators must perform on-wing and in-shop inspections of the TBH according to specified Rolls-Royce Alert Non-Modification Service Bulletins within the compliance times detailed in the directive's appendices. If cracks are found, corrective actions must be taken before engine release to service. Installing the SB RB.211-72-J055 modification is an optional terminating action that eliminates the need for repetitive inspections. Compliance with the revised requirements is mandatory from the effective date.
Summary
EASA Airworthiness Directive 2016-0193R2 is an updated regulation addressing inspection and replacement requirements for the low pressure turbine exhaust case and support assembly (Tail Bearing Housing) of Rolls-Royce RB211 Trent 900 engines, commonly installed on Airbus A380 aircraft. This directive mandates inspections to detect cracks or damage in specific TBH components and outlines corrective actions and optional terminating modifications to ensure continued airworthiness.
What changed
This revision removes the requirement for inspections of Mount Lug Run-outs previously mandated by NMSB RB.211-72-AG971 and reinstates the Fluorescent Penetrant Inspection (FPI) for the Tail Bearing Housing Support Structure in engines modified by SB RB.211-72-J055. It also transfers mandatory inspection instructions from earlier NMSBs to the Trent 900 Time Limits Manual at Revision 70, refining inspection criteria and compliance procedures.
Why it matters
The directive addresses potential structural failures in the TBH that could compromise engine integrity and aircraft control, posing safety risks. For operators and maintenance organizations, compliance ensures detection and correction of cracks that could lead to engine damage or failure. The updated inspections and optional modifications help optimize maintenance efforts and reduce unscheduled downtime while maintaining regulatory compliance.
More for Rolls-Royce Deutschland Ltd & Co Kg RB211 TRENT 900
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- EASA PAD 26-084Time Limits / Maintenance Checks – Engine Time Limits Manual – AmendmentJul 13, 2026
- EASA AD 2025-0190[Correction] Engine — Low Pressure Turbine Seal Panel — Modification / InspectionSep 4, 2025
- EASA AD 2025-0069Time Limits / Maintenance Checks — Engine Time Limits Manual — AmendmentMar 28, 2025
- EASA AD 2025-0061
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