# 2026-00299: FAA Targets Wobbly Boeing 737 Parts to Prevent Mid-Air Jitters

2026-00299, Airworthiness Directives; The Boeing Company Airplanes, is a Federal Register proposed rule from Transportation Department, Federal Aviation Administration published 2026-01-09, effective The FAA must receive comments on this proposed AD by February 23, 2026. (as of 2026-06-11).

- Canonical: https://policyrisk.com/federal-register/2026-00299
- As of: 2026-06-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-00299
- Title: Airworthiness Directives; The Boeing Company Airplanes
- Type: Proposed Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 931
- Published: 2026-01-09
- Effective: The FAA must receive comments on this proposed AD by February 23, 2026.
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: 2120-AA64
- Last updated: 2026-06-11

## In one line

FAA Targets Wobbly Boeing 737 Parts to Prevent Mid-Air Jitters

## 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.

## Abstract

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This proposed AD was prompted by reports from multiple operators of pitch oscillations events due to excessive horizontal stabilizer freeplay. This proposed AD would require measuring the freeplay of the horizontal stabilizer pivot hinges and the jackscrew, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Effects PRIA read

- Mandatory Stabilizer Freeplay Checks: benefit, high. 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, 202…
- Inspection Cost per U.S. Airplane: cost, medium. 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…
- Possible Repair or Replacement Costs: cost, low. 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 esti…

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## Sources
- [2026-00299 on federalregister.gov](https://www.federalregister.gov/documents/2026/01/09/2026-00299/airworthiness-directives-the-boeing-company-airplanes)
- [2026-00299 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-01-09/pdf/2026-00299.pdf)

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Source: PRIA, https://policyrisk.com/federal-register/2026-00299 (as of 2026-06-11).