FAA Issues New Directives for Specific Boeing 737 Models

The Federal Aviation Administration (FAA) has issued new airworthiness directives (ADs) for certain Boeing 737 aircraft models. These directives, published in the Federal Register, address two separate concerns that could potentially impact flight safety.

The first AD targets specific Boeing 737-300 and -400 series aircraft. This directive follows a report indicating that the flight control system tolerances may allow the deflection of the spoilers to fall below the minimum level required for the activation of the thrust split monitoring in the autothrottle system. The FAA's directive aims to ensure that the spoiler deflection meets the necessary safety threshold.

The second AD affects certain Boeing 737-8, 737-9, and 737-8200 (737 MAX) aircraft. This action comes in response to a report detailing an improper installation of a spoiler wiring harness that could lead to undesired spoiler movement. Notably, there was an incident involving the stiffening of a flight spoiler, which means the spoilers could become uncommanded and fully deflected, a situation that could significantly affect the control and safety of an aircraft.

Both ADs will take effect on January 6, 2025. These measures are part of the FAA's efforts to maintain high safety standards and prevent potential issues arising from these identified risks. The directives will require inspections and possible modifications to ensure compliance and enhance the safety of these Boeing 737 aircraft models.