Understanding PMA Parts

For over five decades, the Federal Aviation Administration (FAA) has granted Parts Manufacturer Approval (PMA) to third-party organizations, allowing them to produce replacement parts for aircraft. These parts are usually manufactured without the direct permission of the Original Equipment Manufacturer (OEM).

The FAA defines PMA as a combined design and production approval for modification or replacement parts, including materials, parts, processes, and appliances. A crucial condition for obtaining PMA approval is ensuring the product does not infringe on existing patents.

Once approved, PMA parts can be used as replacements for original aircraft parts. As certified by the FAA, these parts must demonstrate equivalent safety and performance to the original parts.

Challenges Surrounding PMA Parts

The controversy over PMA parts typically originates from OEMs or leasing companies, both of which have vested interests. PMA parts, often 40 to 50 percent cheaper than OEM parts, pose a competitive threat to OEMs and lease companies aiming to maintain asset value. Despite the cost savings, the quality of PMA parts is not compromised.

OEMs have historically argued that PMA parts might not perform as well as the original, potentially jeopardizing the aircraft. While this argument can be compelling if taken out of context, its influence has waned over time.

As evidenced by FAA certification, PMA manufacturers counter these claims by emphasizing that their parts meet or exceed OEM quality standards. Nevertheless, OEMs and lessors frequently apply commercial pressure to discourage the use of PMA parts, complicating market dynamics.

The Industry Context

The debate over PMA parts occurs in an intensely competitive airline industry, where profit margins are often minimal. The potential cost savings from using PMA parts are significant. However, concerns about safety and the potential impact on reputation due to using PMA parts remain powerful deterrents.

When using PMA parts, it's important to consider the potential breach of contractual obligations. This contractual risk is substantial, while the safety concerns are often overstated.

June is dedicated to Aviation Stores and Logistics at Sofema.

Join our exclusive FREE workshop webinar and engage with industry experts Don’t miss the chance to ask your questions and discuss them during the workshop. Sign up here.

For additional information, comments or questions, please email team@sassofia.com

Next Steps

Sofema Aviation Services (SAS) www.sassofia.com & Sofema Online (SOL) www.sofemaonline.com provide regulatory & vocational training, offering more than 700 Classroom Training Courses and More than 400 Online Courses. For additional information, please email team@sassofia.com