Fuselage — Forward Engine Support Frame Fuselage Station 1051.30 — Inspection
- Published
- Effective
- Deadline
- Replaces
- 2022-54
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must inspect the tombstone fittings using the specified ultrasonic and surface inspection procedures as outlined in ALI Task 53-61-121. Aircraft not previously inspected must comply within the intervals specified in the Maintenance Requirements Manual. Aircraft previously inspected only with the older procedure must be reinspected using the new ultrasonic method within two years of the directive's effective date, 18 October 2022.
Summary
Airworthiness Directive CF-2022-54R1 addresses inspection requirements for the forward engine support frame at fuselage station 1051.30 on MHI RJ Aviation ULC aircraft models CL-600-2C10, CL-600-2C11, CL-600-2D15, and CL-600-2D24. It mandates improved inspection procedures for tombstone fittings part numbers MM670-36153/36154 and MM690-36153/36154 to detect cracks that could compromise engine attachment. This directive updates previous inspection protocols to enhance safety and compliance.
What changed
CF-2022-54R1 corrects a typographical error found in the Maintenance Requirements Manual reference in the original AD CF-2022-54. It maintains the requirement to use a new ultrasonic sub-surface inspection procedure alongside the existing special detailed inspection to better detect cracks in the tombstone fitting lugs. The revision ensures clarity and accuracy in compliance documentation without changing the core inspection requirements.
Why it matters
This directive is critical for operators and maintenance teams because undetected cracks in the tombstone fitting lugs could lead to engine detachment from the airframe, posing serious safety risks. The updated inspection procedures improve the likelihood of early crack detection, thereby preventing potential structural failures. Compliance ensures continued airworthiness and regulatory adherence for affected aircraft models.
More for MHI RJ Aviation CL-600 (Regional Jet)
All 84- EASA AD CF-2026-48Pneumatic – 10th and 14th Stage Bleed Duct Damaged or Missing InsulationOct 7, 2026
- EASA AD CF-2026-43Ice and Rain Protection – Wing Anti-Ice – Aircraft Flight Manual Procedure Anomaly - AmendmentSep 11, 2026
- EASA AD CF-2026-09R2Ice and Rain Protection – Engine Cowl Anti-Ice – Ejector Pipe ChafingAug 5, 2026
- EASA AD CF-2026-07R1Ice and Rain Protection – Engine Cowl Anti-Ice – Ejector Pipe ChafingJun 22, 2026
- EASA AD CF-2026-09R1
Get the next one by email
New ADs and bulletins for these 5 aircraft types, summarized like this page, every Monday.