ARSA Seeks MMI Clarification
October 10, 2012
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
SMS Integration Webinar Series Continues in February
On Jan. 20, ARSA and the Aircraft Electronics Association presented the fourth of six planned webinars – a monthly series stretching into March – explaining effective integration of a safety…Read MoreARSA, AEA Offer Guidance to OpSpecs Working Group
On Jan. 9, ARSA and the Aircraft Electronics Association (AEA) offered resources to help improve FAA issuance of Operations Specifications paragraphs. The analysis was delivered in a letter to the…Read MoreARSA Pushes Congress to Guarantee FAA Funding
On Dec. 17, ARSA delivered a letter to the chairman and ranking member of the U.S. House of Representatives Committee on Transportation & Infrastructure (T&I) supporting the Aviation Funding Solvency…Read MoreSupport Simplifying New D&A Rules
December 22, 2025 | Categories:
Act Now, ARSA News & Updates, ARSA Works, Aviation Policy, Drug and Alcohol, EASA, FAA, Legislative, Operations, Press Releases, Regulatory, Rulemaking
Dec. 22, 2025 Update: ARSA is developing compliance matrices for tracking requirements of both 14 CFR part 120 and 49 CFR part 40 against international laws. The association is working…Read More
