ATR-42 Engine Change
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Transcript of ATR-42 Engine Change
![Page 1: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/1.jpg)
Engine Removal Summary ATR-42-500•Open the RHS and LHS FWD and AFT cowls.•The following connections are to be opened from the LHS of the Engine (starting from the AFT of the engine):
1. The AFT pair of lower cowl fire loop connectors (remove and tag-Identification is available but in most cases is worn out on the cowl).
2. The FWD pair of upper cowl fire loop connectors (remove and tag identification). 3. Check the new engine and if it has come with the ACW generator installed then do not open the
connections, otherwise open the ACW Gen connections and change the Generator. 4. Remove 03 connectors of the ACW Generator which are coming together on the engine mount.5. Open the Handling Bleed Valve Connector (HBV).
•The following connections are to be opened from the RHS of the Engine (starting from the AFT of the engine):1. The Engine Connections (05 on AFT Upper part of the engine-Tag for identification).2. The ACW harness main connector which is installed on the engine fire wall towards the FWD side. 3. The Lower cowl engine fire loop connectors AFT Pair (tag for identification).4. The upper cowl engine fire loop connectors 5. The DC starter generator connections.6. The PVM connections.
•Make sure that while removing the PVM the targets /sensors for Np are not damaged.
Engine Removal Summary ATR-42-500
![Page 2: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/2.jpg)
LHS• The following connections are to be opened from the LHS of the Engine (starting from the AFT of the
engine):1. The AFT pair of lower cowl fire loop connectors (remove and tag-Identification is available but in
most cases is worn out on the cowl).2. The FWD pair of upper cowl fire loop connectors (remove and tag identification). 3. Check the new engine and if it has come with the ACW generator installed then do not open the
connections, otherwise open the ACW Gen connections and change the Generator. 4. Remove 03 connectors of the ACW Generator which are coming together on the engine mount.5. Open the Handling Bleed Valve Connector (HBV).
![Page 3: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/3.jpg)
Engine Removal Summary ATR-42-500•Open the RHS and LHS FWD and AFT cowls.•The following connections are to be opened from the LHS of the Engine (starting from the AFT of the engine):
1.The AFT pair of lower cowl fire loop connectors (remove and tag-Identification is available but in most cases is worn out on the cowl).
![Page 4: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/4.jpg)
1. The FWD pair of upper cowl fire loop connectors (remove and tag identification).
![Page 5: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/5.jpg)
Check the new engine and if it has come with the ACW generator installed then do not open the connections, otherwise open the ACW Gen connections and change the Generator.
Remove 03 connectors of the ACW Generator which are coming together on the engine mount
EEC
![Page 6: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/6.jpg)
• Open the Handling Bleed Valve Connector (HBV) LHS AFT of the engine
![Page 7: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/7.jpg)
RHS• The following connections are to be opened from the RHS of the Engine (starting from the AFT of the
engine):1. The Engine Connections (05 on AFT Upper part of the engine-Tag for identification).2. The ACW harness main connector which is installed on the engine fire wall towards the FWD side. 3. The Lower cowl engine fire loop connectors AFT Pair (tag for identification).4. The upper cowl engine fire loop connectors 5. The DC starter generator connections.6. The PVM connections.
![Page 8: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/8.jpg)
The Engine Connections (05 on AFT Upper part of the engine-Tag for identification).
![Page 9: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/9.jpg)
The ACW harness main connector which is installed on the engine fire wall towards the FWD side
![Page 10: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/10.jpg)
The Lower cowl engine fire loop connectors AFT Pair (tag for identification).
![Page 11: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/11.jpg)
The upper cowl engine fire loop connectors
![Page 12: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/12.jpg)
The DC starter generator connections.
![Page 13: ATR-42 Engine Change](https://reader036.fdocuments.us/reader036/viewer/2022081420/55cf91cc550346f57b90cb8f/html5/thumbnails/13.jpg)
The PVM connections-03 (will be opened from the RHS)