EASA AD US-2019-03-06: Superseded by FAA AD 2020-17-04

What to do

Operators of Boeing 737-300, -400, and -500 series airplanes must install the required lanyard assemblies following Boeing Service Bulletin 737-25-1728 and Requirements Bulletin 737-25-1758 RB. Compliance must be achieved by March 29, 2019, the effective date of the AD. Stakeholders should review the service information and coordinate with the FAA for any alternative methods of compliance if needed.

Summary

FAA Airworthiness Directive 2019-03-06 is a final rule addressing certain Boeing 737-300, -400, and -500 series airplanes. It requires the installation of lanyard assemblies on passenger service units (PSUs) and, for some airplanes, on the life vest panels to prevent PSUs from detaching during survivable accidents. This directive aims to enhance cabin safety by reducing the risk of injury and obstruction during evacuations.

What changed

This new airworthiness directive mandates the installation of lanyard assemblies to secure PSUs and life vest panels on affected Boeing 737 models. It introduces specific service bulletin references for compliance and clarifies applicability, including considerations for freighter conversions. The directive also incorporates standardized language aligning with previous safety recommendations.

Why it matters

This AD is critical for aviation professionals as it addresses a safety hazard where PSUs could detach and fall into the cabin during accidents, potentially causing passenger injuries and hindering evacuation. Operators and maintenance teams must ensure compliance to maintain airworthiness and passenger safety. The directive also provides clarity on applicability and compliance procedures, aiding regulatory adherence.

What to do

Summary

What changed

Why it matters

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