FAA Targets Wobbly Boeing 737 Parts to Prevent Mid-Air Jitters
Published Date: 1/9/2026
Proposed Rule
Summary
The FAA wants to make sure certain Boeing 737 planes don’t wobble dangerously in the air because of loose parts in the horizontal stabilizer. They’re asking airlines to check and fix these parts to keep flights safe. Comments on this plan are open until February 23, 2026, and fixing the issue might cost some money but will keep everyone flying smoothly.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 2 costs, 0 mixed.
Mandatory Stabilizer Freeplay Checks
The FAA proposes a rule that would require operators of Boeing 737-600, -700, -700C, -800, -900, and -900ER airplanes to measure horizontal stabilizer pivot-hinge and jackscrew freeplay and do specified on-condition actions using Boeing Alert Requirements Bulletin 737-55A1104 RB, dated June 12, 2025. The rule is intended to address reports of pitch oscillations and reduce the risk of a flutter event that could lead to loss of control.
Inspection Cost per U.S. Airplane
The FAA estimates the required freeplay measurement will take 6 work-hours at $85 per hour, for a labor cost of $510 per airplane and $0 parts, and that 1,987 U.S.-registered airplanes would be affected, producing an estimated total cost to U.S. operators of $1,013,370. The estimated labor rate and total number affected are taken from the NPRM's cost table.
Possible Repair or Replacement Costs
If inspections find worn parts, operators may need to repeat measurements and replace or repair worn pivot hinges or jackscrew components. The FAA lists repeat measurement labor as 6 work-hours at $85 per hour and replacement labor as 1 work-hour at $85, but states it has no definitive data to estimate parts costs or how many airplanes will need replacements.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-15585, Requirements for Interference-Tolerant Radio Altimeter Systems
In July 2025, President Trump signed the One Big Beautiful Bill Act. Section 40002 of that law re-institutes the Federal Communications Commission's general auction authority and specifically directs the Commission to complete a system of competitive bidding for not less than 100 megahertz in the 3.98-4.2 gigahertz band (Upper C- band). This final rule supports the Federal Communications Commission's July 2026 Report and Order that makes 160 megahertz of the Upper C-band available for terrestrial wireless flexible use via a system of competitive bidding. To ensure safe, efficient, and reliable aviation operations in the presence of wireless signals in the C-band, the Federal Aviation Administration is issuing new regulations that require all radio altimeters to meet specific minimum performance requirements. These new radio altimeters must withstand interference from wireless signals in neighboring spectrum bands and continue to provide accurate altitude readings to both pilots and integrated aircraft safety systems. These regulations require all aircraft equipped with radio altimeters operating under part 121 and those aircraft with radio altimeters operating under part 129 with 30 or more passenger seats or a payload capacity of more than 7,500 pounds to comply with the minimum performance requirements by December 30, 2030, which is prior to the date the Federal Communications Commission authorizes the use of the Upper C-band for new wireless services, as stated in its Report and Order. All other aircraft equipped with radio altimeters that are required to comply with part 91, including aircraft operating under parts 125, 133, 135, 136, 137, 194, and all other aircraft operating under part 129 that are not subject to the initial deadline, must comply with the same minimum performance requirements on or before October 31, 2034.
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.
2026-18601, Airworthiness Directives; Dassault Aviation Airplanes
The FAA is superseding Airworthiness Directive (AD) 2023-23- 06, which applied to certain Dassault Aviation Model FALCON 2000EX airplanes. AD 2023-23-06 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2023-23- 06, the FAA has determined that new or more restrictive airworthiness limitations are necessary. This AD continues to require certain actions in AD 2023-23-06 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
2026-18602, Airworthiness Directives; Dassault Aviation Airplanes
The FAA is superseding Airworthiness Directive (AD) 2023-22- 12, which applied to all Dassault Aviation Model FALCON 2000 airplanes. AD 2023-22-12 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2023-22-12, the FAA has determined that new or more restrictive airworthiness limitations are necessary. This AD continues to require certain actions in AD 2023- 22-12 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
Previous / Next Documents
Previous: 2026-00268, Clarification to the Applicability of Emergency Exemptions; Response to Petitions for Reconsideration
The FMCSA wants to change emergency exemptions for truck drivers from 14 days back to 30 days after a state emergency is declared. This affects drivers and companies relying on these rules during emergencies, giving them more time for relief. Comments on this change are open until March 10, 2026, so speak up if you’re impacted!
Next: 2026-00316, "Small Business" and "Small Organization" Definitions for Investment Companies and Investment Advisers for Purposes of the Regulatory Flexibility Act
The SEC wants to update the rules that decide what counts as a "small business" or "small organization" for investment companies and advisers by raising the asset limits. They’re also planning to adjust these limits regularly for inflation. If you’re an investment adviser or company, these changes could affect your filing rules, so get ready to comment by March 13, 2026!