Civil Aviation
Service Bulletin
Definition
What Service Bulletin Means
A service bulletin tells operators about a change the manufacturer recommends or requires. Whether it has been incorporated on a given aircraft is a fact about that aircraft, not about the fleet.
Documentation has to reflect it both ways, showing post-incorporation content for modified aircraft and pre-incorporation content for the rest, which is exactly the effectivity problem structured content exists to solve.
Also written: SB, service bulletins
Nearby
Related Terms
A mandatory instruction from a regulator addressing an unsafe condition, which removes the operator's discretion about whether to comply.
ApplicabilityThe machinery that records which content applies to which configuration, so one library can serve a fleet whose members are not identical.
AMMThe airframer's manual for maintenance performed on the aircraft, covering fault isolation, removal, installation and scheduled tasks.
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Beyond the Definition
Knowing what a term means is the easy half. If you need to know what it obligates on your program, that is the conversation we are built for.