Airbus uses ALS documents for maintenance, and these are broken down into Parts covering topics such as Safe Life Airworthiness Limitation Items or Certification Maintenance Requirements.
Airbus MPD is a comprehensive tool that complements the ALS (Airworthiness Limitation Section) system, it includes information from various ALS groups, however the MPD doesn’t encompass all the ALS information so a clear understanding of how MPD and ALS interact is crucial.
Key Considerations Alongside the Airworthiness Limitation Section (ALS) is other documents and considerations including for example Service Bulletins: Inform operators about non-mandatory changes, Airworthiness Directives: Mandatory instructions from aviation authorities to address safety issues or other factors then such as Reliability, modifications, national requirements, etc.