GM 21.A.124(b)(1)(i) Applicability – Inappropriate approval under Subpart G

CAA ORS9 Decision No. 1

The issue of a letter of agreement of production under Part 21 Subpart F may be agreed by the CAA when:

1. The applicant produces or intends to produce aeronautical products, parts and/or appliances intended for airborne use as part of a type-certificated product (this excludes simulators, ground equipment and tools), and

2. The CAA determines that Part 21 Section A Subpart G would be inappropriate, and consequently Part 21 Section A Subpart F applies. The main difference between Part 21 Section A Subparts G and F is that Subpart G requires the existence of a Quality System which provides the CAA with the necessary confidence to grant to the manufacturer the privileges of certifying its own production. There are situations where a Quality System, including independent monitoring and continuous internal evaluation functions, is not justified and /or feasible. In making the determination that Subpart F may apply, the CAA may take into account one or a combination of parameters such as the following:

— no flow production (infrequent or low volume of production).

— simple technology (enabling effective inspection phases during the manufacturing process).

— very small organisation.