EASA AD 2018-0117R1
Exhaust — Inner J-Ring and V-Groove Interface — Inspection
Summary
EASA Airworthiness Directive 2018-0117R1 is an amendment addressing inspection requirements for the inner J-ring and V-groove interface on Airbus A380-861 aeroplanes powered by GP7200 engines. It mandates repetitive detailed inspections of the inner J-ring to detect wear damage that could compromise the structural integrity of the engine thrust reverser unit and fan exhaust cowl. The directive applies to all manufacturer serial numbers of the Airbus A380-861 and references Airbus Service Bulletin A380-78-8012 for inspection procedures.
What Changed
EASA Airworthiness Directive 2018-0117R1 revises the original AD 2018-0117 by clarifying inspection intervals and installation conditions for the inner J-ring. The amendment refines paragraph (5) to avoid confusion regarding installation of engines or assemblies with affected inner J-rings and updates inspection interval thresholds based on engine modification status. No terminating action is introduced, but inspection intervals may be extended if an optional engine modification is embodied.
Why It Matters
This directive is critical for aviation professionals as it addresses a potential unsafe condition involving wear damage that could lead to loss of axial load path in the thrust reverser unit, potentially reducing engine structural integrity. Operators and maintenance organizations must ensure compliance to prevent in-service failures and maintain continuing airworthiness. Clear inspection and corrective action requirements help manage safety risks and regulatory compliance for the Airbus A380 fleet equipped with GP7200 engines.
What To Do
Operators must perform repetitive detailed inspections of each inner J-ring within specified compliance times and intervals defined by engine configuration and flight cycles, following Airbus Service Bulletin A380-78-8012. If damage is found, corrective actions must be completed before the next flight. Installation of engines or assemblies with inner J-rings is permitted only if the J-ring meets inspection criteria and is inspected thereafter as required. Optional engine modifications can extend inspection intervals but must be tracked to maintain compliance.
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