EASA AD 2014-0152R2
Engine — Intermediate Pressure Compressor Rotor Shaft and Balance Weights — Inspection / Modification
Summary
EASA Airworthiness Directive 2014-0152R2 is an updated regulatory requirement addressing inspection and modification of the intermediate pressure compressor rotor shaft and balance weights on Rolls-Royce RB211 Trent 500, 800, and 900 series engines. These engines are commonly installed on Airbus A340-500, A340-600, Airbus A380, and Boeing 777 aircraft. The directive mandates inspections and modifications to detect and correct cracks that could compromise rotor integrity and aircraft safety.
What Changed
This revision excludes engines that have the specified modification embodied in production from the applicability, removing the need for in-shop inspections for those engines. It also deletes the in-shop inspection requirement for RB211 Trent 970 engines and updates inspection and modification compliance timelines. Additionally, it incorporates the latest service bulletin revisions and clarifies terminating actions for inspections.
Why It Matters
This directive is critical for aviation professionals to prevent potential engine failures caused by cracks in the intermediate pressure compressor rotor shaft, which could lead to non-contained engine debris and aircraft damage. Operators and maintenance organizations must ensure compliance to maintain airworthiness and avoid operational disruptions. The updated requirements optimize inspection programs and reduce unnecessary maintenance for modified engines.
What To Do
Operators must perform on-wing visual borescope inspections and in-shop eddy current inspections of the IP compressor rotor shaft as specified, with intervals and actions detailed in the applicable Rolls-Royce service bulletins. Engines without the modification must be modified during the next qualified shop visit to terminate repetitive inspections. Compliance with these actions must follow the effective dates and intervals outlined in the directive.
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