# Proposed AD FAA-2026-11809: Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comments due Nov 30
- Products: Baykar Piaggio Aerospace P-180
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 14, 2026, 91 FR 65144
- Comments due: November 30, 2026
- Docket: FAA-2026-11809 (https://www.regulations.gov/docket/FAA-2026-11809, where comments are filed)
- Project: MCAI-2024-00028-A
- FR document: 2026-21008
- Official PDF: https://openairdocs.org/files/sha256/9a/4f/9a4fedcf74df131ce0e3e5d5f132133986dce652f9216a1c61f5bc2ac9a9804f (from https://www.govinfo.gov/content/pkg/FR-2026-10-14/pdf/2026-21008.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/10/14/2026-21008/airworthiness-directives-baykar-piaggio-aerospace-spa-type-certificate-previously-held-by-piaggio
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-21008-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-11809

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Baykar Piaggio Aerospace S.p.A. (Piaggio) Model P-180 airplanes. This proposed AD was prompted by a report of corrosion and cracks found around the head of attaching fasteners on main wing lower skin external reinforcement doublers. This proposed AD would require repetitive high frequency eddy current (HFEC) inspections of the lower skin reinforcement and, depending on findings, corrective action. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 14, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-21008, comments due Nov 30, 2026 (https://www.federalregister.gov/documents/2026/10/14/2026-21008/airworthiness-directives-baykar-piaggio-aerospace-spa-type-certificate-previously-held-by-piaggio)

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