Incorrect Part Numbers & Aviation Components

Small things can have a massive impact. 

This CMI C-90 was mistakenly equipped with the incorrect part number magnetos and spacers. This configuration caused an offset between the magneto drive gears and the crankgear; resulting in complete gear failure.  One magneto housing was also damaged and rendered the magneto beyond repair. The missing gear teeth were discovered throughout the engine. The metal contamination also damaged the tappets and camshaft. It’s important to always do the proper research and confirm correct part numbers for the assembly, to avoid detrimental damage like this.

Aircraft part numbers are issued by individual manufacturers. It is possible (and does happen) for two very different aircraft parts to be identified by the same part number. There are a couple of ways to confirm whether you are using the correct part. You can check the description of the part shown in the quote. Or, you may request/ the quote may include – a photo of the part so you can compare it to the replacement part. It’s important to double-check the aircraft part’s number on your quote to ensure you will not be using an incorrect item. 

Alternate parts numbers may be offered in response to a request for a quote. It is up to the operator to decide if the alternate part number can be accepted. An aircraft parts database may be consulted to determine if a part can be installed on a particular aircraft or engine.

Make sure you are taking engines and components somewhere reputable. 

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