2026-00842Proposed Rule

FAA Fixes Typo in Boeing 737 Safety Rule Paperwork

Published Date: 1/16/2026

Proposed Rule

Summary

The FAA fixed a mix-up in the paperwork for a safety rule about certain Boeing 737 airplanes. This rule affects models 737-600 through 737-900ER and keeps the original safety checks and deadlines the same. If you want to share your thoughts, you have until February 23, 2026, to comment—no extra costs or changes to the original plan.

Analyzed Economic Effects

3 provisions identified: 2 benefits, 1 costs, 0 mixed.

Mandatory inspections and repairs for 737s

If you operate or maintain Boeing Model 737-600, -700, -700C, -800, -900, or -900ER airplanes, you must follow the inspection and on-condition repair actions in Boeing Alert Requirements Bulletin 737-55A1104 RB, dated June 12, 2025. The actions include measuring freeplay of the left and right horizontal stabilizer pivot hinges and the jackscrew, determining total stabilizer freeplay, repeating measurements as required, and replacing or repairing any worn parts at the times specified in the bulletin. The correction only fixes the docket number to Docket No. FAA-2025-5403 and does not change the original compliance times or required actions.

Reduces risk of stabilizer flutter

The rule responds to reports of pitch oscillations from excessive horizontal stabilizer freeplay that could lead to a flutter event and possible loss of control of the airplane. By requiring the inspections and on-condition repairs in the June 12, 2025 Boeing bulletin, the FAA aims to reduce the risk of those dangerous flight events for affected 737 models.

Alternative compliance request option

Operators may request an Alternative Method of Compliance (AMOC) to meet this AD if approved by the Manager, AIR-520, Continued Operational Safety Branch, FAA, or by an authorized Boeing Organization Designation Authorization (ODA). To use an AMOC, follow the procedures in 14 CFR 39.19 and notify your principal inspector or the responsible Flight Standards Office before using any approved AMOC.

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Key Dates

Effective Date
Published Date
Comments Due
1/9/2026
1/16/2026
2/23/2026

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
Federal Aviation Administration
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