airworthiness · Rule · Final rule; request for comments. · Published 2025-08-14 · Effective 2025-08-29 · 90 FR 39102
Document
Document number
2025-15482
Federal Register citation
90 FR 39102
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Airbus SAS
Publication date
2025-08-14
Effective date
2025-08-29
FAA docket
Docket No. FAA-2025-1733
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A319-151N, -153N, -171N, and -173N airplanes; Model A320-251N, -252N, -253N, -271N, -272N, and -273N airplanes; and Model A321-251N, -252N, -253N, -271N, -272N, -251NX, -252NX, -253NX, -271NX, -272NX, -253NY, and -271NY airplanes. This AD was prompted by occurrences of high-pressure bleed valve (HPV) butterfly seal retention clip rupture. This AD requires revising the existing airplane flight manual (AFM) and the existing FAA-approved minimum equipment list (MEL), allows replacement of each affected HPV as an optional terminating action, and prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.