Airworthiness DirectiveEASA AD BR-2025-10-01

Engine Feed Check Valve - Inspections / Functional Test

Published: Oct 9, 2025
Effective: Oct 9, 2025
Replaces: E2025-07-03R1/39-1588

Embraer ERJ 190

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What to do

Operators of Embraer ERJ190-300 and ERJ190-400 aircraft with the specified engine feed check valve must perform inspections or functional tests according to their aircraft's accumulated flight hours by the deadlines specified in the directive, including immediate inspections before the next flight for aircraft over 14,000 flight hours. Repetitive inspections every 10,000 flight hours and functional tests at defined intervals are required. Any detected damage must be addressed by valve replacement and possible fuel system inspection before further flight.

Summary

Brazilian Airworthiness Directive AD No. 2025-10-01 is issued by the Agência Nacional de Aviação Civil (ANAC) and applies to Embraer ERJ190-300 and ERJ190-400 aircraft equipped with Engine Feed Check Valve Part Number L85E38-003. The directive mandates inspections and functional tests of the engine feed check valves to address potential valve failures that could lead to engine flameout or fuel starvation. This AD ensures continued airworthiness and flight safety for affected aircraft registered in Brazil.

What changed

AD No. 2025-10-01 cancels and supersedes EAD No. E2025-07-03R1/39-1588 and revises the interval for periodic functional tests of the engine feed check valves, especially for aircraft with less than 14,000 flight hours. It introduces updated inspection and functional test procedures with specific compliance timelines based on accumulated flight hours. The directive also provides credit for previous service bulletin compliance and clarifies alternative methods of compliance.

Why it matters

This directive is critical for operators and maintenance organizations as it addresses a safety risk involving accelerated wear and potential failure of the engine feed check valves, which can cause engine flameout or fuel starvation during flight. Compliance ensures the reliability of the fuel feed system and prevents in-flight engine shutdowns, thereby protecting passenger safety and avoiding costly unscheduled maintenance. It also provides clear guidance on inspection intervals and corrective actions to maintain regulatory compliance.

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