Advisory Circular 43-18 and the Category Parts List
April 20, 2012
The Federal Aviation Administration’s (FAA) Aircraft Certification Service (AIR) has posted the Category Parts List (CPL) referenced in Advisory Circular (AC) 43-18 on the FAA website. Here is a link to the document. The CPL link also is available from this page on FAA’s Aircraft Certification website.
AC 43-18 (link to a .PDF version of the AC here), “Fabrication of Aircraft Parts By Maintenance Personnel,” describes the CPL as a necessary tool “to determine the criticality category of the part and the level of AIR involvement needed in the design data approval process for certificate holders fabricating parts.”
The AC, released in March, also says the CPL “is regularly updated and maintained in electronic format on the Aircraft Certification Service’s website by AIR.”
Several members recently informed ARSA that they couldn’t find the CPL online. ARSA quickly determined that, contrary to what the AC states, the list wasn’t available outside of the FAA.
The Association sent the agency a letter pointing out the discrepancy and asking it to be corrected. The agency soon informed ARSA that the CPL was available.
More from ARSA
First Part 145 Session On Demand, Live Sessions Continue
In July and August, ARSA is administering a series of online training sessions combining to walk through every section of 14 CFR part 145, “Repair Stations.” The new series replaces…Read MoreARSA Remembers – Dave Harrington
Colonel David R. “Dave” Harrington , a decorated Air Force pilot, Distinguished Flying Cross recipient, former FAA Flight Standards Service director, husband, father, Pop Pop, and friend, died peacefully on…Read MoreOn Demand Workshop – It All Starts with the Law
June 30, 2026 | Categories:
ARSA News & Updates, ARSA Works, FAA, Maintenance, Operations, Regulatory, Training
The recording of ARSA’s special workshop providing the regulatory and statutory foundation for compliance is available on demand. The resource was presented to FAA personnel as part of the association’s…Read More
