EASA AD 2018-0128R1
SUPERSEDED BY EASA AD 2018-0167
Summary
EASA Airworthiness Directive 2018-0128R1 is an updated directive addressing inspection requirements for Rolls-Royce Trent 1000 series engines installed on Boeing 787 aircraft. It mandates ultrasonic and borescope inspections of specific Intermediate Pressure Compressor (IPC) blades and shafts to detect cracks that could lead to in-flight blade release. The directive applies to all serial numbers of Trent 1000-A, -AE, -C, -CE, -D, -E, -G, and -H engines.
What Changed
This revision updates the original EASA AD 2018-0128 by incorporating changes from Revision 1 of the Rolls-Royce Alert Non-Modification Service Bulletin (NMSB), including removal and addition of certain engine modules from inspection groups and updated serial number exclusions. It confirms revised inspection instructions and compliance tables introduced by the NMSB Revision 1.
Why It Matters
This directive is critical for aviation professionals to prevent potential in-flight failures caused by cracked IPC blades in Trent 1000 engines, which could compromise aircraft control. Operators and maintenance organizations must ensure timely inspections and corrective actions to maintain airworthiness and regulatory compliance. Failure to comply could result in unsafe flight conditions and regulatory penalties.
What To Do
Operators must perform ultrasonic inspections of IPC Rotor 1 blades within 30 days for Group 1 modules and within 60 days for Group 2 modules, or during the next engine or module shop visit after 12 June 2018, whichever occurs first. Visual borescope inspections of IPC Rotor 2 blades and shafts are required within 30 days if the engine has accumulated more than 1,000 flight cycles since installation. Any detected cracks must be repaired following Rolls-Royce approved instructions before further flight or engine release to service.
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