EASA AD 2026-0215: Oxygen – Oxygen Pressure Regulator – Inspection

What to do

Operators of affected ATR 42-500 and ATR 72 aeroplanes must perform a detailed inspection of each affected oxygen regulator within 6 months or 750 flight hours from 20 November 2026, whichever occurs first. If any regulator is found incorrectly installed, corrective actions must be completed before the next flight. Maintenance must only be performed using the updated ATR maintenance procedure dated 01 July 2026 or later.

Summary

EASA Airworthiness Directive 2026-0215 is an airworthiness directive addressing the inspection of oxygen pressure regulators on ATR 42 and ATR 72 aeroplanes. It specifically applies to passenger oxygen regulators with Part Number 112054-01 installed on various ATR 42-500 and ATR 72 models. The directive mandates detailed inspections to detect improper assembly that could prevent oxygen flow during activation.

What changed

This new airworthiness directive introduces mandatory detailed inspections of affected oxygen pressure regulators due to a quality escape related to improper assembly at the supplier level. It requires corrective actions if any incorrect installations are found and restricts maintenance actions to approved procedures dated 01 July 2026 or later. The directive also incorporates ATR's Airworthiness Operator Message 2026/05 Issue 2 and updated maintenance procedures.

Why it matters

This directive is critical for aviation professionals as it addresses a potential safety risk where oxygen flow to passengers could be compromised in an emergency. Operators and maintenance organizations must ensure compliance to maintain aircraft airworthiness and passenger safety. Failure to comply could result in regulatory penalties and increased safety risks during oxygen system activation.

What to do

Summary

What changed

Why it matters

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