2026-18796Proposed RuleWallet

FAA Proposes More Airbus A330 Safety Mandates

Published Date: 9/14/2026

Proposed Rule

Summary

If you own or operate certain Airbus A330 and A340 airplanes, the FAA wants you to update your planes with extra safety fixes beyond the last rules. These updates include more work on the stabilizer and electrical systems to keep flights safe. Comments on this plan are open until October 29, 2026, and while the fixes might cost time and money, they’re crucial for safe skies.

Analyzed Economic Effects

2 provisions identified: 0 benefits, 2 costs, 0 mixed.

Operators must do THSA mods plus extra work

If you operate certain Airbus SAS Model A330 or A340 airplanes identified in EASA AD 2025-0169 (dated July 31, 2025), you must continue to do the THSA (trimmable horizontal stabilizer actuator) installation modifications and ELSD wiring and activation required by AD 2024-26-06 and also perform additional work after that modification for certain airplanes. The additional work can include applying sealant, modifying connectors, ensuring specific metallic clamps are tight on the conduit, and modifying structure around frame 87.

FAA cost estimate: up to $72K per plane

The FAA estimates this proposed AD would affect 120 U.S.-registered airplanes. The retained actions (from AD 2024-26-06) are estimated at up to 62 work-hours × $85 = $5,270 labor plus up to $66,966 parts, for a cost per airplane up to $72,236 and a U.S. fleet total up to $8,668,320. The new proposed actions are estimated at up to 11 work-hours × $85 = $935 labor plus up to $530 parts, for a cost per airplane up to $1,465 and a U.S. fleet total up to $175,800.

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Key Dates

Published Date
Comments Due
9/14/2026
10/29/2026

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
Federal Aviation Administration
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