PMA Parts Marking and Approval
A look at the regulations
By Fred Workley
In today's cost-conscious environment the use of PMA parts is growing. But there are standards and regulations that have to be met. The following article will take a closer look at the situation.
An approval process is required by the Federal Aviation Regulations (FAR) for replacement and modification parts for installation on a type certificated product. PMA (Parts Manufacturing Authority) parts may be found to be acceptable for installation on a type certificated product according to FAA Advisory Circular (AC) No: 20-62D. AC 20-62D also says that for PMA parts the FAA-PMA symbol is needed. An FAA-PMA is issued under section 21.303. Each PMA part should be marked with the letters, "FAA-PMA," in accordance with 14 CFR Part 45, section 45.15:
(1) The name.
(2) Trademark or symbol.
(3) Part number.
(4) Name and model designation of each certificated product on which the part is eligible for installation.
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