FAA Mandates Extra Checks on ATR Airplane Valves
Published Date: 12/9/2025
Rule
Summary
If you fly or work with ATR42 or ATR72 airplanes, listen up! The FAA says these planes need more frequent checks on a key valve to keep everyone safe because it might fail if left unchecked. Starting January 13, 2026, these tests must happen regularly, which could mean some extra time and money but keeps the skies safer.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
New Maintenance Tests Start Jan 13, 2026
If you operate ATR42 or ATR72 airplanes, you must begin repetitive functional tests of the pressure regulator and shut-off valve (PRSOV) starting January 13, 2026. The FAA estimates the required action is 50 work-hours at $85/hour = $4,250 per airplane, affecting 114 U.S.-registered airplanes for a total estimated cost of $484,500 to U.S. operators.
Improves Flight Safety Against Valve Failure
The AD requires more frequent PRSOV functional tests because a dormant PRSOV failure combined with icing could result in loss of control of the airplane. The rule adopts the test and corrective-action procedures of EASA AD 2025-0011 and is effective January 13, 2026, to address this unsafe condition.
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