# Federal Register #FAA-2025-5141

FAA Airworthiness Directive for Airbus BO209 Series Rudder Drive and Airspace Modifications

**Buyer:** Federal Aviation Administration
**Posted:** September 15, 2026
**Respond By:** October 30, 2026
**Identifier:** FAA-2025-5141
**NAICS:** 488190

This opportunity centers on proposed FAA airworthiness directives and airspace modifications:
- **Government Buyer:**
  - Federal Aviation Administration (FAA), Department of Transportation
  - Aircraft Certification Service and Western Service Center
- **OEMs Highlighted:**
  - Airbus Defence and Space GmbH
- **Products/Services Requested:**
  - Inspection and corrosion control for rudder drive torsion tubes on Airbus Defence and Space GmbH Model BO209150 FF, FV, RV and BO209160 FV, RV aircraft
    - Part numbers: BO209SB002/2025 and BO208SB002/2025
    - Tasks include: inspection for corrosion, drainage hole checks, corrosion inhibitor application, and replacement of rudder drive with serviceable parts per Airbus Service Bulletins
    - Recurring inspections required every 5 years
- **Unique Requirements:**
  - Compliance with Airbus Service Bulletins for rudder drive maintenance
  - Recurring inspection schedule (every 5 years)
  - Focus on corrosion prevention and airworthiness
- **Additional FAA Actions:**
  - Proposed airspace modifications at Roberts Field/Redmond Municipal Airport, OR
  - Establishment of RNAV route T337 and amendment of VOR federal airways near Twin Falls, ID, due to navigation aid decommissioning
- **No other OEMs or vendors mentioned; no service line items requested.

### Description

This proposed rule aims to modify the Class D and Class E airspace areas at Roberts Field/Redmond Municipal Airport in Redmond, Oregon. The modifications include expanding the Class D surface area and Class E surface area radius to 5.6 miles to better contain aircraft during circling maneuvers and IFR departures. The proposal also establishes a common airspace boundary with Bend Municipal Airport to reduce airspace incursions and adjusts the Class E airspace extending upward from 700 feet to better contain arriving and departing IFR aircraft. These changes support the safety and management of instrument flight rules (IFR) operations at the airport.

[View original listing](https://www.federalregister.gov/documents/2026/09/15/2026-18804/modification-of-class-d-and-class-e-airspace-areas-roberts-fieldredmond-municipal-airport-redmond-or)