FAA Warns Diamond Planes of Self-Moving Rudder Risk
Published Date: 7/17/2026
Rule
Summary
If you fly a Diamond DA 42, DA 42 NG, or DA 42 M-NG, listen up! The FAA found a problem where a cracked part in the nose landing gear can mess with your rudder, making it move on its own. Starting July 20, 2026, you’ll need to update your flight manual, check this part regularly, and replace it if it’s damaged to keep flying safe and sound.
Analyzed Economic Effects
4 provisions identified: 1 benefits, 3 costs, 0 mixed.
Replace Damaged Rod Ends Before Flight
If any inspection finds a crack, deformation, corrosion, damage, or lack of free movement of the spherical bearing, you must replace the affected NLG hydraulic actuator rod end with a serviceable part before further flight. As of July 20, 2026 you may not install an affected part unless it meets the AD’s serviceable-part definition. The FAA’s cost estimates show on-condition replacement costs of $211 for replacing the rod end (1 work-hour at $85 plus $126 parts) or $4,671 to replace the entire NLG hydraulic actuator (6 work-hours at $85 plus $4,161 parts).
Mandatory NLG Rod-End Inspections
You must inspect the specified nose landing gear (NLG) hydraulic actuator rod ends for cracks, deformation, corrosion, damage, and free movement of the spherical bearing within the initial times set by the AD (for airplanes with more than 4,000 hours TTIS: within 5 flight cycles; 4,000 or less and more than 1,000: within 50 flight cycles; up to and including 1,000: within 2,000 flight cycles; newly certificated airplanes: within 4,000 flight cycles after issuance). Inspections must be repeated at intervals not to exceed 4,000 flight cycles. The FAA estimates the inspection labor is 4 work-hours at $85/hour = $340 per inspection cycle and that the AD affects 267 U.S.-registered airplanes.
Must Add New AFM Limitation
If you operate a Diamond DA 42, DA 42 NG, or DA 42 M-NG, you must add the specified operating limitation into the Limitations section of your airplane flight manual (AFM) before the airplane reaches 1,000 hours total time-in-service (TTIS) or before further flight after July 20, 2026, whichever is later. The AD explicitly allows the owner/operator (pilot) holding at least a private pilot certificate to perform this AFM revision and requires you to record compliance in the airplane maintenance records under 14 CFR 43.9(a) and 91.417(a)(2)(v).
Inspection Reporting and Paperwork Burden
You must report inspection results within 14 days after performing any inspection required by the AD (or within 14 days after the effective date for the first inspection), including a no-findings report for the first inspection. The FAA estimates reporting takes about 1 hour per response (OMB Control Number 2120-0056).
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-13440 — Enabling Supersonic Overland Flight
The FAA wants to let supersonic planes fly over land again by updating old rules that banned them because of loud sonic booms. Thanks to new tech that keeps booms quiet, this change will open the door for faster, cooler flights across the U.S., helping America lead the world in supersonic travel. People and companies interested in supersonic flight should share their thoughts by August 17, 2026.
2026-13126 — Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period
The FAA is giving more time—until August 5, 2026—for people to share their thoughts on new rules that would limit drone flights near important fixed sites like power plants or airports. This affects drone operators and facility owners who want to keep the skies safe and secure. No new costs yet, just extra time to weigh in and help shape the rules.
2026-08943 — Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility
The FAA is proposing new rules to keep drones away from certain important fixed sites like power plants or airports to keep everyone safe and secure. If you own or operate one of these sites, you can request a drone flight restriction zone to protect your property and people nearby. Comments are open until July 6, 2026, and these changes could affect drone pilots and site operators, but no big costs are expected.
2026-14478 — Airworthiness Directives; General Electric Company Engines
The FAA is making a new rule for certain General Electric GEnx engines because a fuel tube hose can leak and cause trouble. If you own or operate these engines, you’ll need to replace the faulty hoses with safe ones by August 21, 2026. This fix keeps flights safe and might cost some money but prevents bigger problems down the road.
2026-14481 — Airworthiness Directives; Bell Textron Canada Limited Helicopters
If you fly a Bell Model 407 helicopter, listen up! The FAA found cracks in the pilot’s control stick and now requires regular checks to catch any damage early. Starting August 21, 2026, pilots must inspect and fix or replace the stick if needed to keep flying safe—this might cost some time and money but keeps everyone in the air worry-free.
2026-14446 — Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments
Starting July 17, 2026, the FAA is updating how pilots approach and take off from certain airports to keep flights safe and smooth. These changes affect pilots and airports by adjusting flight paths and safety rules due to new tech, obstacles, or air traffic needs. No big costs here—just smarter skies and safer flights for everyone.
Previous / Next Documents
Previous: 2026-14509 — Margin Requirements for Uncleared Swaps for Swap Dealers and Major Swap Participants
Starting August 17, 2026, swap dealers and big swap players get some margin rule relief! New rules say certain new investment funds won’t have to exchange initial margin for up to three years, and more types of money market funds can now count as good collateral. Plus, the rules tweak how much value gets discounted on some assets, making it easier and cheaper to trade uncleared swaps.
Next: 2026-14524 — Fisheries of the Exclusive Economic Zone off Alaska; Amendment 129 to the Fishery Management Plan for Groundfish of the Bering Sea and Aleutian Islands Management Area; Amendment 58 to the Fishery Management Plan for Bering Sea Aleutian Islands King and Tanner Crabs; Economic Data Reporting Requirements Removal
Fishermen in Alaska’s Bering Sea and Aleutian Islands won’t have to send in yearly economic reports anymore, thanks to new proposed changes. This means less paperwork and lower fees for those catching groundfish and crabs. If you’re involved in these fisheries, you’ve got until September 15, 2026, to share your thoughts before the changes take effect.