2023-25-03: Horizontal Stabilizer Structure

FAA order 2023-25-03 is an airworthiness directive in force since February 2, 2024. The FAA's subject line: Horizontal Stabilizer Structure. It names Piaggio Aero Industries Spa P180: about 55 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: airframe structure.

What it applies to as the FAA lists it

Kind of product: Aircraft
Makes: Piaggio Aviation S.p.A.
Models: P-180
On this site: Piaggio Aero Industries Spa P180 55 registered

Dates and paperwork

In force since: February 2, 2024
Published: December 29, 2023 (signed December 8, 2023)
Docket: FAA-2023-1819
Replaced by: 2025-15-10
Status: Historical
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is adopting a new airworthiness directive (AD) for certain Piaggio Aviation S.p.A. (Piaggio) Model P-180 airplanes. This AD is prompted by a report of corrosion on the various aluminum alloy reinforcements in the horizontal stabilizer (HS) central box caused by a humid environment inside the box from water ingress and/or condensation. This AD requires a one-time detailed inspection of the HS central box for corrosion; an assessment of the corrosion level; and depending on the determination, repetitive detailed inspections of the HS central box for corrosion and the internal composite structure for surface cracks, distortion, and damage; and repair or replacement of the HS assembly. Repair or replacement of the HS assembly is terminating action for the repetitive inspections. The FAA is issuing this AD to address the unsafe condition on these products.

The order itself the regulatory text, as published

Show the full text (387 characters)

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: Issued on December 8, 2023. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023-28769 Filed 12-28-23; 8:45 am]BILLING CODE 4910-13-P

Related safety bulletins advice on the same designs, not orders

2011-11-02CE-12-05 · Navigation: Water freezing in Pitot-Static System

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/2023-25-03.json · aircraft systems.