Airbus Operators Must Check Aircraft Fuel Valves for Leaks
Published Date: 10/19/2026
Rule
Summary
The FAA is making new rules for certain Airbus A330 and A340 airplanes because some fuel valves might leak. Airlines must regularly check these valves for leaks and replace any faulty parts to keep flights safe. These rules start November 23, 2026, and could mean some extra maintenance costs but keep everyone flying safely.
Analyzed Economic Effects
5 provisions identified: 2 benefits, 3 costs, 0 mixed.
Mandatory fuel-valve leak checks for safety
If you fly on certain Airbus A330 or A340 airplanes, the FAA requires repetitive leak checks of specific fuel low pressure shut-off valves (LPSOVs) and replacement if any discrepancy is found. The AD applies to A330-243, A330-243F, A330-341, A330-342, A330-343, A330-841, A330-941 and A340-211, A340-212, A340-213, A340-311, A340-312, A340-313, A340-541, and A340-642 airplanes, and is effective November 23, 2026.
Estimated routine maintenance cost per airplane
Airlines must perform the repetitive leak checks, which the FAA estimates cost up to 8 work-hours at $85 per hour (up to $680) per airplane for the required actions. The FAA estimates this AD affects 115 U.S.-registered airplanes, for a total estimated cost on U.S. operators of up to $78,200.
Potential on-condition replacement cost per part
If a leak or other discrepancy is found, the FAA estimates an on-condition replacement could require 5 work-hours ($425) plus parts costing $10,000, for a total of about $10,425 per product. The FAA did not estimate how many airplanes will need this on-condition action.
Compliance timing: initial check deadline option
Where EASA guidance gave a compliance window between November 12, 2025 and March 3, 2029, this FAA AD requires accomplishing the initial leak check within 35 months after the AD effective date (November 23, 2026).
No reporting or part-return requirement
Although the referenced EASA material requested submitting information and sending removed parts to the manufacturer, this FAA AD explicitly does not include any requirement to report results or return removed parts to the manufacturer.
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