# Airworthiness Directives; Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes
> **Rule** · Final rule. · Published 2026-04-06 · Effective 2026-05-11 · 91 FR 17132
## Document
- **Document number:** 2026-06599
- **Category:** airworthiness
- **Manufacturer:** Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.)
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 91 FR 17132
- **Publication date:** 2026-04-06
- **Effective date:** 2026-05-11
- **FAA docket:** Docket No. FAA-2026-0019
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Baykar Piaggio Aerospace S.p.A. (type certificate previously held by Piaggio Aviation S.p.A.) (Piaggio) Model P-180 airplanes. This AD was prompted by reports of corrosion and cracks affecting the vertical stabilizer. This AD requires repetitive visual and non- destructive testing (NDT) inspections, a one-time NDT inspection of the vertical stabilizer assembly, and, depending on findings, accomplishment of corrective actions. In addition, this AD provides a terminating action for the repetitive inspections if certain actions of the service material are accomplished. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/04/06/2026-06599/airworthiness-directives-baykar-piaggio-aerospace-spa-type-certificate-previously-held-by-piaggio)
---
*AI Analytics · CC0 1.0*