Safety DirectiveEASA AD ISR-I-53-2019-12-6R2

Loading Restrictions due to 9G Barrier Manufacturing Non-Compliance

Published: Aug 25, 2020
Effective: Dec 12, 2019

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Affected operators must review their Boeing 737 fleets modified with the specified STCs and apply the loading restrictions immediately. Maintenance and engineering teams should verify the manufacturing status of the 9G barriers and coordinate with Israel Aerospace Industries Ltd or relevant authorities for corrective measures. Compliance deadlines are not explicitly stated, so actions should be prioritized promptly.

Summary

Loading Restrictions due to 9G Barrier Manufacturing Non-Compliance is a regulatory document addressing loading limitations on Boeing 737 aircraft modified under Israel Aerospace Industries Ltd and associated STCs including CAA Israel STC SA136, SA160, SA299, and EASA STCs 10015542, 10016227, EASA.IM.A.S.01426, and EASA.IM.A.S.02479. The document highlights issues related to non-compliance in the manufacturing of 9G barriers installed on these aircraft. It applies specifically to Boeing 737 models equipped with these modifications.

What changed

This document introduces loading restrictions for affected Boeing 737 aircraft due to identified manufacturing non-compliance of the 9G barriers. It establishes operational limitations to ensure safety until corrective actions are implemented. The regulation is new and does not amend or update previous directives.

Why it matters

This matters because the 9G barrier is a critical safety component designed to protect the aircraft structure and occupants under high load conditions. Non-compliance in its manufacturing could compromise structural integrity during operations, posing risks to flight safety. Operators, maintenance organizations, and compliance teams must understand and implement these restrictions to maintain regulatory compliance and ensure continued airworthiness.

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