CFM Doc Leap 1a Co Intro 3 V1.3 [PDF]

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COURSE OUTLINE



LEAP-1A



Introduction



v1.3 SEP 2019 CTC- 613 – Level 3



v1.3 SEP 2019 CTC- 613 – Level 3



Course Outline



LEAP-1A



FOREWORD This CFMI publication is for Training Purposes Only. The information is accurate at the time of compilation; however, no update service will be furnished to maintain accuracy. For authorized maintenance practices and specifications, consult pertinent maintenance publications. The information (including technical data) contained in this document is the property of CFM International (GE and SAFRAN AIRCRAFT ENGINES). It is disclosed in confidence, and the technical data therein is exported under a U.S. Government license. Therefore, none of the information may be disclosed to other than the recipient. In addition, the technical data therein and the direct product of those data, may not be diverted, transferred, re-exported or disclosed in any manner not provided for by the license without prior written approval of both the U.S. Government and CFM International. COPYRIGHT 2019 CFM INTERNATIONAL



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SEP 2019 Page 3



Course Outline



LEAP-1A



Introduction to the LEAP-1A Family



The LEAP-1A is the power source for the entire A320 Airbus neo family (A319, A320, A321). The powerplant thrust range is 24,400 to 32,900 lbf.



Powerplant - General



The powerplant provides to the A/C forward thrust and reverse thrust (on ground only). It also provides air, electricity and hydraulics. For operation and maintenance, the powerplant exchanges data with the A/C.



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Course Outline



LEAP-1A



Powerplant - Airflows



The flow splitter separates the two airflows: the primary flow passes through the core engine (booster, HPC, combustion chamber, HPT, LPT) while the secondary flow passes through the OGVs and exits through the nacelle discharge duct.



Powerplant - Systems



The powerplant includes two groups of systems: the engine systems and the aircraft systems partially fitted on the engine.



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Course Outline



LEAP-1A



Powerplant - FADEC System



The purpose of the FADEC is to control the engine in response to thrust command inputs and to provide cockpit indication, maintenance reporting, engine condition monitoring and troubleshooting information.



Powerplant - Ext. Dimensions & Ground Clearance



This display gives information on the approximate external dimensions and ground clearance.



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Course Outline



LEAP-1A



Powerplant - Hazard/Danger Areas



Hazard and danger areas are defined at idle and full power to prevent any human or material damage during engine run-ups: an inlet suction area and an exhaust hazard area are defined as well as an access corridor between them.



Powerplant - Acoustical Hazard Areas



Engine noise can cause injury to personnel. Specific hazard areas are defined depending on engine power. Close to the engine, ear injury will occur even when wearing ear protection.



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Course Outline



LEAP-1A



Maintenance Concept (on Condition)



The on-condition maintenance concept optimizes the engine life on wing.



QEC and Cowlings



The major components of the LEAP powerplant are the Quick Engine Change (QEC), the 2 fan cowl doors and the 2 thrust reverser cowls. QEC parts can be replaced directly on the A/C.



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Course Outline



LEAP-1A



Powerplant Replacement



To replace the powerplant, refer to AMM chapter 71-00-51.You have to use the approved Ground Support Equipement (GSE) and to obey all warnings and cautions.



Engine Preservation and Depreservation



Preservation procedures for the powerplant give protection from environmental damage when the airplane is not in use for an extended period of time. Depreservation procedure returns powerplant systems to normal operation.



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Course Outline



LEAP-1A



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