On the 9th January 2006 ams were issued with the compulsory authorisation (EASA Part 145) from the German aviation authorities (LBA) with the number DE.145.0382 which permits ams to perform the following:

Class	Rating	Limitation	Base	Line
Aircraft	A1	Airbus A300 Series   Airbus A300-600 Series   Airbus A310 Series   Airbus A319, A320, A321 Series   Airbus A330, A340 Series	x x x x x	x x x x x

Rating	ATA	Scope of Work
C20	ATA 20 Standard Practices Airframe   ATA 50 Structure   ATA 51 Standard Practices & Structure   ATA 53 Fuselage   ATA 57 Wings	Maintenance of Parts and Components   Maintenance of Parts and Components   Painting & Corrosion Prevention   Maintenance of Parts and Components   Maintenance of Parts and Components