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Service Bulletin
From SKYbrary Wiki
| Article Information | ||
|---|---|---|
| Category: | Airworthiness | 
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| Content source: | SKYbrary | 
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| Content control: | EUROCONTROL | 
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Definition
This is the document used by manufacturers of aircraft their engines or their components to communicate details of modifications which can be embodied in aircraft. In some cases, these may be issued as a Mandatory SB (or MSB) in which case a corresponding AD will be issued by the appropriate NAA.