Airworthiness Directives (ADs)
CAA-2008-02-002
The aircraft owner or operator shall comply with Airworthiness Directives issued by the CAA or the aeronautics authority of the State of Design (SoD) of the aviation products, appliances and parts, and take all necessary actions thereto.
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Issue Date
- 2008/02/18
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Applicability
- CFM56-7B18, -7B20, -7B22, -7B24, -7B26, -
7B27, -7B22/B1, -7B24/B1, -7B26/B1, -7B27/B1, -7B22/B2, -7B26/B2, -7B27/B3 turbofan engines
with turbine rear frame (TRF), part numbers 340-166-205-0, 340-166-206-0, 340-166-207-0, 340-
166-208-0, 340-166-209-0, and 340-166-210-0, installed. These engines are installed on, but not
limited to, Boeing 737 series airplanes.
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Model Number
- CFM56-7B Series Turbofan Engines.
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CAA AD Number
- CAA-2008-02-002
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Aeronautics Authority of Original AD
- FAA
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Original AD Number
- 2008-03-09
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Effective Date
- 2008/03/10
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Subject
- To prevent failure of the TRF from low-cycle fatigue cracks. Failure of the TRF could result in engine separation from the airplane, which could lead to loss of control of the airplane.
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Reference Publications (Revision/ATA/SB)
- CFM International Service Bulletin CFM56-7B S/B 72-0579 R1.
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Remarks
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