Join ARSA Ask ARSA Pay ARSA

ARSA Seeks MMI Clarification

On Oct. 4, ARSA asked the FAA for clarification regarding the use of maintenance instructions modified according to EASA part 145.A.45(d). ARSA submitted its request on behalf of European ARSA members working under the Agreement between the United States of America and the European Community on Cooperation in the Regulation of Civil Aviation Safety; those members have faced questions over FAA acceptance of such modified maintenance instructions (MMI).

Under EASA’s rules, MMI are equivalent or improved instructions that retain the intent of the original type-certificate holder’s information. Since MMIs do not affect the “engineering design,” they should not be considered a deviation from the manufacturer’s maintenance manuals or ICA. As such, ARSA asked the FAA to officially recognize the acceptability of MMI.



More from ARSA

Championing the Industry at MRO Americas

On stage and behind the scenes at the Georgia World Congress Center, ARSA leaned into the 2025 MRO Americas convention theme: Shaping the future of aviation maintenance. Brett Levanto, association…Read More

Weston Award Recognizes Crowley’s Commitment to Learning

On March 20, ARSA recognized Jerry Crowley with its Leo Weston Award for Excellence in Government Service. Crowley is a long time FAA aviation safety inspector who was a professional…Read More

Industry Requests More Time to Comment on FAA Order 8130.21J

Update: On April 17, the FAA notified the industry signatories that it had extended the comment deadline to June 6, 2025. On March 28, ARSA joined 11 ally trade associations…Read More

Small Biz Recruitment by Repair Stations

The National Skills Coalition and its partner organization Business Leaders United invite the repair station community to support a study of small and mid-sized business recruiting practices. The study seeks…Read More

Maintenance Industry Surpasses Pre-Pandemic Peaks, Enters “Supercycle”

On March 19, ARSA used its Annual Legislative Day gathering to release its 2025 Global Fleet & MRO Market Report. The analysis provided for the association by Oliver Wyman Vector,…Read More
ARSA