Engine — Low Pressure Compressor Rotor (Fan) Disc — Inspection
- Published
- Effective
- Deadline
- Replaces
- 2022-0110
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must perform initial and repetitive visual inspections of the specified low pressure compressor rotor discs within the compliance times defined, with initial inspections required by 29 July 2022 for parts with less than 500 flight hours or cycles as of 29 June 2022. If cracks are found, affected parts must be removed and replaced with serviceable parts before further flight. Optional terminating actions include engine modifications per Rolls-Royce service bulletins or a one-time on-wing ultrasonic inspection with no defects detected.
Summary
EASA Airworthiness Directive 2022-0110R1 is a regulatory update addressing inspection requirements for low pressure compressor rotor (fan) discs on Rolls-Royce Deutschland BR700-710 series engines. This directive applies to engines installed on aircraft such as Bombardier BD-700-1A10, BD-700-1A11, Gulfstream G500, and G550. It mandates inspections to detect cracks that could lead to fan disc or blade failure, posing safety risks.
What changed
This revision of EASA AD 2022-0110 introduces reference to a new Rolls-Royce Non-Modification Service Bulletin (NMSB BR700-72-900743) that provides improved ultrasonic inspection procedures as an alternative compliance method. It also adds optional terminating actions for repetitive visual inspections, including new service bulletin modifications and ultrasonic inspections.
Why it matters
The directive is critical for aviation professionals to prevent potential engine failures caused by undetected cracks in the low pressure compressor rotor discs. Operators and maintenance organizations must ensure compliance to maintain aircraft safety and airworthiness. The updated inspection methods and terminating actions provide more effective means to detect defects and reduce inspection frequency when appropriate.
More for Rolls-Royce Deutschland Ltd & Co Kg BR700-710
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