Engine — High Pressure Turbine Stage 2 Intermediate Air Seal / Bolts — Inspection
- Published
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- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Rolls-Royce Tay 620-15 and 650-15 engines must perform initial and repetitive inspections of the high pressure turbine stage 2 intermediate air seal and bolts according to the specified intervals: Group 1 engines within 50 flight cycles or 2 months, and Group 2 engines within the earlier of 10,000 flight cycles since installation or 1,000 flight cycles/12 months after the directive's effective date. Any discrepancies found require immediate replacement of affected parts before further flight.
Summary
EASA Airworthiness Directive 2022-0184 is an airworthiness directive addressing Rolls-Royce Tay 620-15 and Tay 650-15 engines, commonly installed on Fokker F28 Mark 0070 and Mark 0100 series aircraft. The directive mandates inspections of the high pressure turbine stage 2 intermediate air seal and its attachment bolts to detect cracks and prevent potential uncontained engine failures. It applies to all serial numbers of the affected engines.
What changed
This new airworthiness directive introduces mandatory repetitive inspections of the high pressure turbine stage 2 intermediate air seal and bolts. It requires operators to inspect these components within specified flight cycle or calendar time limits depending on the engine group classification, and to replace any damaged parts before further flight. The directive was issued promptly following reports of bolt cracks and total bolt loss incidents.
Why it matters
This directive is critical for aviation professionals because undetected cracks or failures in the turbine stage 2 intermediate air seal bolts could lead to uncontained engine failures, posing serious safety risks. Operators and maintenance organizations must ensure compliance to maintain aircraft airworthiness and prevent potential damage or loss of control. The directive also clarifies inspection intervals and corrective actions, aiding compliance and maintenance planning.
More for Rolls-Royce Deutschland Ltd & Co Kg Tay
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- EASA AD 2021-0080Engine — Low Pressure Turbine Stage 2/3 Discs — Inspection / ReplacementMar 17, 2021
- EASA AD 2018-0079Engine — Low Pressure Compressor Fan Blades — Identification / ReplacementApr 11, 2018
- EASA AD 2018-0055Time Limits / Maintenance Checks — Time Limit Manual — AmendmentMar 12, 2018
- EASA AD 2018-0013
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