The U.S. Federal Aviation Administration (FAA) has taken the unprecedented step of invalidating all Certificates of Aircraft Registration issued through Southern Aircraft Consultancy Inc. (SACI), grounding more than 800 N‑registered aircraft worldwide and creating significant disruption for owners in Ireland. The FAA determined on 13th January 2026 that SACI did not meet the U.S. citizenship requirements necessary to act as an aircraft owner trustee, a condition essential for the operation of Non‑Citizen Trust (NCT) agreements used by many foreign aircraft owners to access the U.S. aircraft registry. As a result, all SACI-associated registration certificates were declared invalid, and the FAA has instructed the company to surrender these certificates within 21 days, with all affected aircraft grounded immediately.
On 16th January 2026, the Irish Aviation Authority issued a notice confirming that N‑registered aircraft held in trust by SACI and operating in Ireland are grounded until owners complete re‑registration in accordance with FAA requirements, advising operators not to fly their aircraft and providing guidance for those wishing to transfer to the Irish register. With approximately 803 aircraft linked to SACI, ranging from light piston aircraft to business jets and helicopters, the grounding has wide-reaching implications for Irish-based pilots who rely on N‑registration for its operational flexibility and internationally recognised FAA maintenance framework.
The consequences for Irish owners are immediate and severe. Without a valid Certificate of Registration, aircraft cannot legally operate, and both the FAA and UK CAA have warned that the absence of such certification may render mandatory insurance policies invalid. This prohibition applies to all flights, including ferry or maintenance repositioning, and places operators at risk of breaching aviation regulations across multiple jurisdictions. Legal and financial experts note that the grounding could even trigger defaults in financing or leasing agreements, as these typically require the aircraft to remain legally registered and airworthy. To restore operating authority, owners must re‑register their aircraft either through another national registry or by submitting a new application to the FAA, supported by evidence of ownership and a $5 registration fee. Temporary operating authority is available only for flights within the United States, meaning it offers no benefit to Irish-based aircraft. Owners based outside the U.S. may submit a Declaration of International Operations (DIO) to request expedited processing, but even then, they must wait for approval before resuming operations.
SACI has publicly disputed the FAA’s findings and announced plans to transfer its trust operations to a U.S.-based trustee, which would potentially restore compliance and allow affected aircraft to resume operations without full re‑registration. However, until the FAA formally recognises such a transfer, all SACI-trust aircraft remain grounded. For Irish owners, the immediate steps are clear: aircraft must not be flown, SACI should be contacted for guidance, and alternative U.S. trustees or the Irish aviation register may offer viable pathways to restore legality.
