# 2026-00357: FAA Orders Hose Replacements for Piaggio Airplanes by February

2026-00357, Airworthiness Directives; Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes, is a Federal Register rule from Transportation Department, Federal Aviation Administration published 2026-01-12, effective 2026-02-17 (as of 2026-06-11).

- Canonical: https://policyrisk.com/federal-register/2026-00357
- As of: 2026-06-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-00357
- Title: Airworthiness Directives; Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes
- Type: Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 1076
- Published: 2026-01-12
- Effective: 2026-02-17
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: 2120-AA64
- Last updated: 2026-06-11

## In one line

FAA Orders Hose Replacements for Piaggio Airplanes by February

## Summary

If you own or operate a Baykar Piaggio P-180 airplane, listen up! The FAA found leaks in some flexible hydraulic hoses and now requires you to replace them by February 17, 2026. Plus, you can’t install those old hoses anymore—keeping your plane safe and sound without breaking the bank.

## 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 a report of leakage from the flexible hydraulic hoses connected to the hydraulic pump package (HPP). This AD requires replacing the affected flexible hydraulic hoses. This AD also prohibits installing the affected flexible hydraulic hoses on any airplane. The FAA is issuing this AD to address the unsafe condition on these products.

## Effects PRIA read

- Mandatory hose replacement on P-180s: cost, high. If you own or operate a Baykar Piaggio P-180 with manufacturer serial numbers 1002, 1004 through 1234, or 3001 through 3018 and have flexible hydraulic hoses P/N AS117-04-0205, 98E0520FAMA000W, MS8006G207AL, or 99G0530FDFD000W installed, you must replace those hoses within 660 hours time-in-service…
- Prohibition on reinstalling old hoses: cost, low. After February 17, 2026, you may not install flexible hydraulic hoses with P/N AS117-04-0205, 98E0520FAMA000W, MS8006G207AL, or 99G0530FDFD000W on any airplane. The rule therefore requires use of replacement hoses that include a non-metallic, non-conductive abrasion sleeve as specified in Piaggio S…
- Estimated compliance cost per airplane: cost, high. The FAA estimates this AD affects 107 U.S.-registered P-180 airplanes. The estimated cost to replace the hoses is 22 work-hours × $85 per hour = $1,870 labor plus $1,241 parts, for a total of $3,111 per airplane and $332,877 on U.S. operators.
- Safety risk prevented: hydraulic leak or fire: benefit, high. The AD responds to reported leakage where electrical arcing punctured flexible hydraulic hoses; if not fixed, leaks could lead to loss of the hydraulic system or fire in the hydraulic pump package (HPP) area. The replacement and installation prohibition aim to prevent that unsafe condition.

## Related documents

- [2026-15585](https://policyrisk.com/federal-register/2026-15585): Requirements for Interference-Tolerant Radio Altimeter Systems, 2026-07-31
- [2026-13440](https://policyrisk.com/federal-register/2026-13440): Enabling Supersonic Overland Flight, 2026-07-02
- [2026-13126](https://policyrisk.com/federal-register/2026-13126): Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period, 2026-06-30
- [2026-08943](https://policyrisk.com/federal-register/2026-08943): Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility, 2026-05-06
- [2025-04846](https://policyrisk.com/federal-register/2025-04846): Extension of the Prohibition Against Certain Flights in the Territory and Airspace of Libya, 2025-03-20
- [2025-03853](https://policyrisk.com/federal-register/2025-03853): Enforcement Policy Regarding “Drug and Alcohol Testing of Certificated Repair Station Employees Located Outside of the United States; Corre…, 2025-03-11

## Sources
- [2026-00357 on federalregister.gov](https://www.federalregister.gov/documents/2026/01/12/2026-00357/airworthiness-directives-baykar-piaggio-aerospace-spa-type-certificate-previously-held-by-piaggio)
- [2026-00357 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-01-12/pdf/2026-00357.pdf)

## Related
- [Previous: 2026-00354, Fisheries of the Northeastern United States; Atlantic Herring Fishery; 2026 Man…](https://policyrisk.com/federal-register/2026-00354)
- [Next: 2026-00362, Schedules of Controlled Substances: Placement of N-Pyrrolidino Metonitazene and…](https://policyrisk.com/federal-register/2026-00362)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-00357 (as of 2026-06-11).