The Basic, non-type rated licence also known as a Category “A” Licence does not in itself convey certification rights, directly but allows the holder to certify “limited and simple maintenance tasks only” as specified on his (or her) “personal authorization Document.”
On the basis of the Maintenance Engineers Licence, together with satisfactory demonstration of competency and knowledge of organizational procedures the personal authorization document is issued by an approved Part-145 organization.
A Category “A” licence holder may only certify his (or her) own work and cannotcertify the work of other individuals.
In general the Category “A” based approval is a task based approval which is restricted to the mechanical systems, although simple and limited avionic tasks as for example which may be found on a daily inspection or a weekly check, can be included with the approval of the Competent Authority.
Category “B1” & “B2”
The Basic “B1” & “B2” Licence alone, does not convey certification rights, an aircraft type rating needs to be added to the licence, prior to the holder gaining an authorization. (but note that a B1 licence (only) includes the privileges of a Category “A” licence so it is possible for the BI not holding a Type rating to have limited approval on a particular Aircraft Type.
On the basis of the “B1” And “B2” Maintenance Engineers Licence, together with Type Training and Rating plus satisfactory demonstration of competency and knowledge of organizational procedures the personal authorization document is issued by an approved Part-145 organization.
The privileges of a “B1” typically include Certification privileges on aircraft structures, powerplant, mechanical systems and electrical systems. Including replacement of avionic line replaceable units (LRUs) requiring simple tests to prove serviceability. Either by the use of BITE (Built in Test Equipment).
The privileges of “B2” typically include certification privileges on Aircraft Electrical and Avionic systems.
Category B3 is applicable to piston-engine non-pressurised aeroplanes of 2 000 kg MTOM and below.
A category B3 aircraft maintenance licence shall permit the holder to issue certificates of release to service and to act as B3 support staff for:
maintenance performed on aeroplane structure, powerplant and mechanical and electrical systems,work on avionic systems requiring only simple tests to prove their serviceability and not requiring troubleshooting.
Category C.
The Basic C Licence alone, The Basic Licence alone, does not convey certification
Rights, I An aircraft type rating needs to be added to the licence prior to the holder gaining an authorization.
When a EASA Part 145 approved organization issues a “personal authorization document” to a holder of a “C” type rating he (or she) is permitted to sign the group Certificate of release to service in accordance with EASA Part 145.A.50 following the completion of Base Maintenance Activity.
“C” certifying engineers may not certify Line Maintenance defects or minor maintenance.
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Tags:
C Licence, Category B3, EASA Part 145, EASA Part 66, Line Maintenance, Part 147, “A” licence, “B1” And “B2” Maintenance Engineers Licence
