Airworthiness Directives (ADs)
86-Tlyc-009
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
- 1997/04/28
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Applicability
- AlliedSignal ALF502 and LF507 Engines
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Model Number
- Tlyc
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CAA AD Number
- 86-Tlyc-009
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Aeronautics Authority of Original AD
- FAA
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Original AD Number
- 97-05-11
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Effective Date
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Subject
- To prevent No. 4 and 5 duplex bearing failure, which can result in a Stage 4 low pressure turbine (LPT) rotor failure, an uncontained engine failure, and damage to the aircraft
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Reference Publications (Revision/ATA/SB)
- SB ALF 502R-79-0160 R1, ALF 502R-79-0162
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Remarks
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Download
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